The Ultimate Computer Acronyms Archive - Allserv WiKi

The Ultimate 

Computer 

Acronyms Archive 

www.acronyms.ch 

Last updated: January 13, 2006

«I'm sitting in a coffee shop in Milford, NH. In the booth next to me are 

two men, a father and a son. Over coffee, the father is asking his son 

about modems, and the son is holding forth pretty well on the subject 

of fax compatibility, UART requirements, and so on. But he's little out 

of date: The father asks, "So should I get one with a DSP?" 

"A what?" says the son. 

You just can't get far if you're not up on the lingo. You might squeak 

by in your company of technological nonexperts, but even some of 

them will surprise you. These days, technical acronyms quickly 

insinuate themselves into the vernacular.» 

Raphael Needleman 

THIS DOCUMENT IS PROVIDED FOR INFORMATIONAL PURPOSES ONLY. 

The information contained in this document represents the current view of the authors on this subject as of the 

date of publication. Because this kind of information changes very quickly, it should not be interpreted to be a 

commitment on the part of the authors and the authors cannot guarantee the accuracy of any information 

presented herein. 

INFORMATION PROVIDED IN THIS DOCUMENT IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND, 

EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF 

MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND FREEDOM FROM INFRINGEMENT. The user 

assumes the entire risk as to the accuracy and the use of this document. 

This document may be copied and distributed subject to the following conditions: 

1. This document must not be altered. 

2. This document may not be distributed for profit. 


Page 2 of 167

µ (mu) 

µ (mu): Micro 

Prefix for 10 power -6 

0-9 

1GL: 1st Generation Language 

Machine language (Software) 

24/7: 24 hours a day/7 days a week 

2D: 2-Dimensional 

2D: Double Density 

(Hardware) 

2G: 2nd Generation 

Mobile telecommunication network allowing 14.4 kbps 

transfer rates (Communication) 

2GL: 2nd Generation Language 

Assembler and other low-level languages (Software) 

2HD: 2 sides, High Density 

(Hardware) 

2PC: 2-Phase Commit 

Protocol to allow replicated data to be modified at multiple 

sites 

2S: 2 Sides 

(Hardware) 

2S2D: 2 Sides, Double Density 

(Hardware) 

2SHD: 2 Sides, High Density 

(Hardware) 

3D: 3-Dimensional 

3DES: Triple Data Encryption Standard 

(Security) 

3G: 3rd Generation 

Mobile telecommunication network allowing 300-400 kbps 


3GIO: 3rd Generation Input Output 

(Hardware) (Intel) 

3GL: 3rd Generation Language 

High level programming languages (Software) 

3GPP: Third Generation Partners Project 

See http://www.3gpp.org/ (Organizations) 

4G: 4th Generation 

Mobile telecommunication network allowing 10Mbit/s 


4GL: 4th Generation Language 

Database access languages (Software) 

4GT: 4 Gigabyte memory Tuning 

5GL: 5th Generation Language 

Artificial intelligence languages (Software) 

6DOF: Six Degrees Of Freedom 

A: Ampere 

Current measurement unit 

a: atto 


Å: Ångstrom 

Length measurement unit corresponding to 10 power -10 

meters 

A/D: Analog/Digital 

(Hardware) 

A/P: Accounts Payable 


A 

A/PC: Auto Personal Computer 

(Hardware) 

A/R: Accounts Receivable 

A/UX: Apple UniX 

(Operating systems) (Apple) 

AA: Advertising Agent 

AA: Anti-Aliasing 

Method for removing jagged edges 

AA: Auto Answer 

AAA: Asp Application Aggregator 

ABIOS 

AAA: Authentication, Authorization and 

Accounting 

A term for a framework for intelligently controlling access 

to computer resources, enforcing policies, auditing usage, 

and providing the information necessary to bill for services. 

These combined processes are important for effective 

network management (Security) 

AAB: All-to-All Broadcast 

AAC: Advanced Audio Coding 

AAC: Authorization and Access Control 

(Security) 

AAF: Advanced Authoring Format 

AAL: Atm Adaption Layer 

Layer 3 of the ATM architecture. Adapts user traffic 

into/from ATM 48-byte payloads (Communication) 

AAM: Automatic Acoustic Management 

Feature that allows the host to request that the drive 

modify its acoustic behavior (Hardware) 

AAP: Applications Access Point 

(DEC) 

AARP: Appletalk Address Resolution Protocol 

(Network) (Apple) 

AAS: All-to-All Scatter 

AAS: Auto Area Segmentation 

Scanner technology which detects and optimizes text and 

graphics on the same page (Hardware) (Epson) 

AASP: Ascii Asynchronous Support Package 

AAT: Average Access Time 

AATP: Authorized Academic Training Program 

(Microsoft) 

ABA: Address Book Archive 

Filename extension 

ABAP: Advanced Business Application 

Programming 

Powerful programming language created specifically for 

developing SAP applications. ABAP Objects is the new 

object-oriented generation of this language, designed to 

respond to the needs of SAP's future strategies and 

environments (Software) 

ABC: Atanasoff-Berry Computer 

First digital calculating machine that used vacuum tubes 

ABEL: Advanced Boolean Expression 

Language 

ABEND: ABnormal END 

(Software) 

ABI: Application Binary Interface 

Defines the binary system interface between compiled 

applications and the operating system on which they run 

(Software) 

ABIOS: Advanced Basic Input Output System 

Page 3 of 167 

0-9 

A

ABIST 

ABIST: Automatic Built-In Self-Test 

(IBM) 

ABLE: Adaptive Battery Life Extender 

ABLE: Agent Building and Learning 

Environment 

(IBM) 

ABM: Asynchronous Balanced Mode 

HDLC data transfer mode (Network) 

ABNF: Augmented Backus Naur Form 

ABR: Available Bit Rate 

One of five ATM Forum defined service types. Supports 

variable bit rate data traffic with flow control, a minimum 

guaranteed data transmission rate and specified 

performance parameters (Communication) 

ABRS: Automated Book Request System 

ABS: ABSolute 

ABS: Address Book Synchronization 

(IBM) 

ABS: Auto Balance System 

System to reduce vibration and noise in a peripheral 

(Hardware) 

ABS: Automatic Backup System 

ABT: ABorT 

ABTS: Ascii Block Terminal Services 

AC: Access Customer 

(Communication) 

AC: Alternate Current 

AC: Audio Codec 

(Hardware) 

AC: Authentication Center 

AC: AutoCheck 

AC: Automatic Computer 

ACAP: Application Configuration Access 

Protocol 

ACC: ACCumulator 

ACC: Authorization Contract for Containers 

Specification (JSR-115) that defines new 

java.security.Permission classes to satisfy the Java 2 

Platform, Enterprise Edition (J2EE) authorization model 

(Software) (Sun) 

ACD: Automatic Call Distribution 

ACDI: Asynchronous Communications Device 

Interface 

ACE: Access Control Encryption 

ACE: Access Control Entry 

An entry in an Access Control List (ACL). An ACE 

contains a set of access rights and a security identifier 

(SID) that identifies a trustee for whom the rights are 

allowed, denied, or audited (Operating systems) 

ACE: Adobe Certified Expert 

(Adobe) 

ACE: Advanced Computing Environment 

ACE: Adverse Channel Enhancements 

ACE: Ascii Compatible Encoding 

ACE: Automatic Computing Engine 

ACF: Access Control Field 

ACF: Advanced Communications Function 

ACH: Automated Clearing House 


ACIA: Asynchronous Communication 

Interface Adapter 

ACIAS: Automated Calibration Interval 

Analysis System 

ACID: Atomicity, Consistency, Isolation and 

Durability 

(Software) 

ACSI 

ACIS: American Committee for Interoperable 

Systems 

ACK: ACKnowledge 

A transmission control character transmitted by a station 

as an affirmative response to the station with which the 

connection has been set up. (Communication) 

ACL: Access Control List 

For granting or denying access to computer resources 

(security) (Operating systems) 

ACL: Advanced Cmos Logic 

ACL: Asynchronous ConnectionLess 


ACM: Afp Conversion Module 

(Software) 

ACM: Association for Computing Machinery 

(Organizations) 

ACM: Audio Compression Manager 

(Microsoft) 

ACMS: Application Control Management 

System 

ACNM: Application Centric Network 

Management 

(Software) 

ACO: Alternate Checksum Option 

(Network) 

ACP: Active Code Page 

ACP: Ancillary Control Program 

ACP: Auxiliary Control Process 

ACPI: Advanced Configuration and Power 

Interface 

(Hardware) 

ACR: Advanced Communication Riser 

(Hardware) 

ACR: Allowed Cell Rate 

ACROSS: Automated Cargo Release and 

Operations Service System 

ACS: Access Control Server 

ACS: Access Control Set 

ACS: Access Control System 

ACS: Admission Control Service 

(Network) (Microsoft) 

ACS: Advanced Computer System 

(IBM) 

ACS: Anti Curl System 

ACS: Asynchronous Communication Server 

ACS: Automatic Class Selection 

ACS: Automatic Contrast Selection 

ACSE: Association Control Service Element 

The method used in International Organization for 

Standardization's open systems interconnection (OSI) for 

establishing a call between two applications. 

ACSI: American Customer Satisfaction Index 

Page 4 of 167 

A

ACSM 

ACSM: Application Centric Storage 

Management 

(Software) 

ACSS: Aural Cascading Style Sheets 

ACT: Application Compatibility Toolkit 

(Software) (Microsoft) 

ACTS: Advanced Communication Technology 

Satellite 

(Communication) (NASA) 

ACTS: Automated Computer Time Server 

ACTT: Advanced Communication and 

Timekeeping Technology 

ACU: Automatic Calling Unit 

ACVC: Ada Compiler Validation Capacity 

AD: Acpi Disassembler 

AD: Active Directory 

(Operating systems) 

ADA: ADA 

Programming language named after Augusta Ada Lovelace 

ADA: Adobe Developers Association 


ADA: Automatic Data Acquisitions 

ADAPT: Architecture, Design, Analysis and 

Planning Tool 

ADB: Apple Desktop Bus 

Bus architecture (Hardware) (Apple) 

ADBS: Advanced Data Broadcast System 


ADC: Active Directory Connector 


ADC: Adaptive Data Compression 

(Hayes) 

ADC: ADd with Carry 

ADC: Advanced Data Connector 

(Databases) (Microsoft) 

ADC: Analog to Digital Converter 

A device that translates analog signals to digital signals. 

Contrast with digital-to-analog converter (DAC). 

(Hardware) 

ADC: Apple Developer Connection 

(Apple) 

ADC: Apple Display Connector 

(Hardware) (Apple) 

ADC: Application Delete Certificate 

ADC: Application Development Consultant 

ADCAP: ADvanced CAPability 

Used to refer to advanced capability, cuttin edge 

technology, also in military applications (e.g. ADCAP 

missile) 

ADCCP: Advanced Data Communication 

Control Procedures 


ADD: Adapter Device Driver 

ADD: Automatic Document Detection 

ADE: Application Data Export 

(Databases) (Oracle) 

ADF: Adapter Description File 

File name extension 


ADF: Automatic Document Feeder 

Scanner device (Hardware) 

ADF: Automatically Defined Function 

ADS/O 

ADI: Application Desktop Integrator 

Spreadsheet-based extension of Oracle Applications. It 

provides full-cycle accounting within the comfort and 

familiarity of a spreadsheet for General Ledger and Oracle 

Assets (Software) (Oracle) 

ADI: AutoCad Device Interface 

Driver 

ADK: Appliance Development Kit 

(Software) 

ADL: Address Data Latch 

ADL: Architecture Description Language 

(Software) 

ADLAT: ADaptive LATtice filter 

ADLC: Asynchronous Data Link Control 

ADM: Application Distribution and 

Management 

ADMACS: Apple Document Management And 

Control System 

ADMD: ADministrative Management Domain 

ADML: Application Description Markup 

Language 

(Software) 

ADML: Architecture Description Markup 

Language 

(Software) 

ADMS: Adstar Distributed Management 

System 

ADO: Activex Data Object 


ADODB: Activex Data Object DataBase 


ADP: Access Database Project 

Filename extension (Software) (Microsoft) 

ADP: Aol Dynamic Pages 

(Software) 

ADP: Automatic Data Processing 

ADPCM: Adaptive Differential Pulse Code 

Modulation 

Communication protocol (Communication) 

ADR: ADdRess 

ADR: Advanced Digital Recording 

(Hardware) 

ADR2: Advanced Digital Recording 2nd 

generation 

(Hardware) 

ADS: Active Directory Service 

Windows 2000 network objects database that stores each 

specific network item in a central database and that may 

be replicated (Operating systems) (Microsoft) 

ADS: Advanced Digital System 

ADS: Application Development Solutions 

(AT&T) 

ADS: Application Development System 

ADS: Automatic Distribution System 

ADS/O: Application Development System / 

Online 

Page 5 of 167 

A

ADSC 

ADSC: Adobe Document Structuring 

Conventions 

ADSI: Active Directory Service Interface 

(Network) 

ADSI: Analog Display Services Interface 

ADSL: Asymmetric Digital Subscriber Line 

Communication infrastructure (Communication) 

ADSM: Adstar Distributed Storage Manager 

(Databases) (IBM) 

ADSM: Advanced Data Storage Management 

(IBM) 

ADSP: Appletalk DataStream Protocol 

(Apple) 

ADSR: Attack, Decay, Sustain, Release 

ADT: Abstract Data Type 

ADT: Access Developer Toolkit 


ADT: Advanced Dram Technology 

(Hardware) 

ADT: Application Data Type 

ADT: Atlantic Daylight Time 

Timezone: GMT -4:00 

ADTG: Advanced Data Table Gram 

Proprietary binary format for storing database data 


ADU: Automatic Dialing Unit 

ADUC: Active Directory Users and Computers 

A snap-in in the Microsoft Management Console (MMC) 

(Operating systems) (Microsoft) 

ADW: Advanced Docking Window 

(Software) 

ADW: Application Development Workbench 

(Software) 

AE: Above or Equal 

AeA: America Electronics Association 


AEB: Analog Expansion Bus 

(Dialogic) 

AEC: Architecture, Engineering, Construction 

A computer graphics market requiring specialized 

applications that facilitate efficient planning, design, 

drafting, and analysis. 

AEGIS: Advanced Electronic Guidance and 

Instrumentation System 

AEI: Application Enabling Interface 

AES: Advanced Encryption Standard 

(Security) 

AESA: Atm End System Address 


AF: Assured Forwarding 

Using AF, a provider may offer different levels of service for 

IP packets received from a customer domain. Each AF 

class is allocated a specified amount of buffer space and 

bandwidth (Network) 

AFA: Accelerated File Access 

AFAIC: As Far As I'm Concerned 

(Net lingo) 

AFAICT: As Far As I Can Tell 

(Net lingo) 


AFAIK: As Far As I Know 

(Net lingo) 

AFAIR: As Far As I Remember 

(Net lingo) 

AFAIUI: As Far As I Understand It 

(Net lingo) 

AGC 

AFC: AntiFerromagnetically-Coupled 

Multilayer coating expected to permit hard-disk drives to 

store 100 billion bits (gigabits) of data per square inch of 

disk area (Hardware) (IBM) 

AFC: Application Foundation Classes 


AFC: Automatic Font Change 

AFC: Automatic Frequency Control 

AFD: Automatic File Distribution 

AFDW: Active Framework for Data 

Warehousing 

(Microsoft) 

AFFS: Amiga Fast File System 


AFI: Authority and Format Identifier 

AFII: Association for Font Information 

Interchange 

AFIRM: Automated Fingerprint Image 

Reporting and Match 

AFIS: Automated Fingerprint Identification 

System 

AFK: Away From Keyboard 

(Net lingo) 

AFLCD: AntiFerroelectric Liquid Crystal 

Display 

(Hardware) 

AFM: Adobe Font Metrics 

File name extension (Adobe) 

AFP: Advanced Function Presentation 

(IBM) 

AFP: Advanced Function Printing 

Suite of electronic printing solutions to turn your invoices, 

letters, policies, statements and reports into high-quality, 

cost-effective documents (Software) (IBM) 

AFP: Appletalk Filing Protocol 

(Communication) (Apple) 

AFPL: Alladin Free Public License 

AFR: Alternate Frame Rendering 

(Hardware) 

AFR: Annualized Failure Rate 

(Hardware) 

AFS: Andrew File System 

AFT: Adapter Fault Tolerance 

(Intel) 

AFT: Authenticated Firewall Traversal 

(Security) 

AFTP: Anonymous File Transfer Protocol 

AGA: Advanced Graphics Adapter 

AGA: Advanced Graphics Architecture 

Graphics architecture for Amiga computers 

AGARAS: AntiGlare AntiReflective AntiStatic 

AGC: Automatic Gain Control 

(Hardware) 

Page 6 of 167 

A

AGE 

AGE: Amorphium Graphics Engine 

AGLR: Anti-Glare, Low Reflection 

(Hardware) 

AGP: Accelerated Graphics Port 

(Hardware) 

AGU: Address Generation Unit 

Ah: Ampere Hour 

Rechargable battery charge measurement unit (Hardware) 

AH: Authentication Header 

(Network) 

AHA: Adaptec Host Adapter 

(Hardware) (Adaptec) 

AHDL: Analog Hardware Description Language 

AHDT: Alaska-Hawaii Daylight Time 


AHIG: Apple's Human Interface Guidelines 

(Software) (Apple) 

AHS: Abstract Handle Specification 

AHST: Alaska-Hawaii Standard Time 


AI: Analog Input 

AI: Artificial Intelligence 

AIA: Applications Integration Architecture 

(DEC) 

AIC: Aixwindows Interface Composer 

(IBM) 

AID: Application IDentifier 

AIFF: Audio Interchange File Format 

(Apple) 

AIIM: Association for Information and Image 

Management 

AIM: Aol Instant Messenger 

AIM: Application Integration Module 

AIM: Application Interface Module 

AIN: Advanced Intelligent Network 

AIO: All In One 

AIP: Application Infrastructure Provider 

AIP: Asp Infrastructure Provider 

AIR: Architecture Implementation Review 

AIS: Alarm Indication Signal 

AIS: Automated Information System 

AISB: Association of Imaging Service Bureaus 

AISI: As I See It 

(Net lingo) 

AISP: Association of Information Systems 

Professionals 

AIT: Advanced Intelligent Tape 

(Hardware) 

AIX: Advanced Interactive eXecutive 

IBM's Unix (Operating systems) (IBM) 

AJAX: Asynchronous Javascript Technology 

and Xml 

Using JavaScript technology, an HTML page can 

asynchronously make calls to the server from which it was 

loaded and fetch XML documents. The XML documents 

may then be used by the JavaScript technology to update 

or modify the DOM of the HTML page (Software) 


AMD 

AJDT: AspectJ Development Tools 

Provides Eclipse platform based tool support for Aspect 

Oriented Software Development (AOSD) with AspectJ. See 

http://www.eclipse.org/ajdt/ (Software) 

aka: Also Known As 

(Net lingo) 

ALAT: Advanced Load Address Table 

ALB: Advanced Load Balancing 

ALC: Airline Link Control 

Service protocol (Network) 

ALC: Application Load Certificate 

ALC: Arithmetic and Logic Circuits 

ALC: Automatic Level Control 

ALDC: Adaptive Lossless Data Compression 

(IBM) 

ALE: Account Level Equivalence 

ALE: Address Latch Enable 

ALE: Application Launch and Embedding 

(Software) 

ALE: Application Linking Enabling 

ALEC: Alternative Local Exchange Carrier 


ALEP: Advanced Language Engineering 

Platform 

ALG: Application Layer Gateway 

Used in conjuction with Network Address Translation 

(NAT) to allow IP address translation (Network) 

ALGOL: ALGOrithmic Language 

Programming language (Software) 

ALIBI: Adaptive Location of Internetworked 

Bases of Information 

ALICE: Artificial Linguistic Internet Computer 

Entity 

ALINK: Active LINK 

ALIWEB: Archie Like Indexing in the WEB 

ALM: Application Lifecylcle Management 

(Software) 

ALM: Asynchronous Line Multiplexer 

A device that connects multiple terminals or other serial 

interface devices to Sun network file servers or 

workstations. Also known as "multiple terminal interface." 

ALN: Asynchronous Learning Network 

ALP: Apple List Price 

Recommended retail price for Apple Macintosh equipment 

(Hardware) (Apple) 

ALP: Automatic Language Processing 

ALR: Advanced Logic Research 

ALSA: Architectures of Large Systems of 

Agents 

ALT: ALTernate 

ALU: Arithmetic Logic Unit 

Device in a CPU performing arithmetic operations 

(Hardware) 

AM: Amplitude Modulation 

AMA: Automatic Message Accounting 

AMASS: Archival Management And Storage 

System 

Manufacturer 

AMD: Active Matrix Display 

Page 7 of 167 

A

AMD 

AMD: Advanced Micro Devices 

CPU Manufacturer (AMD) 

AME: Advanced Metal Evaporation 

Recording media technology (Hardware) 

AMG: All Music Guide 

AMHA: Advanced Macro Heuristic Analysis 

(Dr. Solomon) 

AMHIK: Ask Me How I Know 

(Net lingo) 

AMI: Alternate Mark Inversion 

AMI: American Megatrends, Inc. 

AMI: Application Messaging Interface 

AML: Acpi Machine Language 

AMLCD: Active-Matrix Liquid Crystal Display 

(Hardware) 

AMMA: Advanced Memory Management 

Architecture 

AMP: Asymmetric MultiProcessing 

System architecture that uses different types of 

processors in a multi-processor system (Hardware) 

AMP: Attached Media Processor 

(Hardware) 

AMPS: Advanced Mobile Phone System 


AMQRS: Audio Master Quality Recording 

System 

(Hardware) 

AMR: Adaptive Multi-Rate 

Audio Codec. GSM/AMR is an audio standard widely used 

for audio in GPRS and W-CDMA networks (Communication) 

AMR: Audio Modem Riser 

Slot for an internal modem (Hardware) 

AMS: Advanced Microcomputer System 

(Hardware) (Siemens-Nixdorf) 

Amstrad: Alan Michael Sugar TRADing 

Eurpean based company that built the first sub $1000 IBM 

compatible PCs in the mid 1980's 

ANDF: Architecture-Neutral Distribution 

Format 

ANI: ANImated cursor 

File name extension (Microsoft) 

ANI: Automatic Number Identification 

ANN: ANNotations 

File name extension (IBM) 

ANN: Artificial Neural Network 

ANS: Advanced Networking Services 

(Network) 

ANS: American National Standard 

ANSI: American National Standard Institute 

An organization that reviews and approves product 

standards in the United States. (Organizations) 

ANT: Advanced Network Tools 

ANT: Another Neat Tool 

Ant is a Java based build tool. In theory it is kind of like 

make without make's wrinkles. See 

http://jakarta.apache.org/ant (Software) 

ANX: Automotive Network eXchange 

AO: Analog Output 

AO/DI: Always On/Dynamic Isdn 


APIC 

AOCE: Apple Open Collaborative Environment 

(Apple) 

AOCN: Administrative Operating Company 

Number 


AOE: Application Operating Environment 

(AT&T) 

AOL: Alert On Lan 

(Network) 

AOL: America OnLine 

(Network) 

AOP: Aspect-Oriented Programming 

(Software) 

AOP: Association of Online Professionals 


AOS: Add Or Subtract 

AOSD: Aspect-Oriented Software 

Development 

(Software) 

AOT: Ahead Of Time 

Programs compilation technique (Software) 

AOW: Asia and Oceania Workshop 

One of the three regional OSI implementors workshops. 

AP: Access Point 

(Hardware) 

AP: Access Provider 


AP: Application Processor 

AP: Application Protocol 

(Software) 

APA: Adaptive Packet Assembly 

APA: All Points Addressable 

APA: Arithmetic Processing Accelerator 

APAR: Authorized Program Analysis Report 

(IBM) 

APC: American Power Conversion 

APCUG: Association of Personal Computer 

User Groups 

APCVG: Association of Personal Computer 

Users Group 


APDU: Application Protocol Data Unit 

APE: Application Performance Explorer 


APF: Apple Filing Protocol 

(Apple) 

APF: Automated Purposing Framework 

Collection of scripts and utilities that enable you to 

consistently and reliably prepare computer hardware 

(BIOS, mass storage) and install the Windows operating 

system and layered products on one or more build 

computers (Microsoft) 

API: Application Programming Interface 

A set of calling conventions defining how a service is 

invoked through a software package. (Software) 

APIC: Advanced Programmable Interrupt 

Controller 

(Hardware) 

Page 8 of 167 

A

APIPA 

APIPA: Automatic Private Internet Protocol 

Addressing 

(Network) 

APIS: Advanced Passenger Information 

System 

APL: A Programming Language 

(Software) 

APL: Applied Physics Laboratory 

Advanced research facility in Skaggsville, MD. 

APL: Average Picture Level 

Monitor quality parameter (Hardware) 

APLSF: A Programming Language with 

Shared Files 

APM: Advanced Power Management 

APM: Application Performance Management 

APN: Access Point Name 

Used on GPRS as access information (Communication) 

APNIC: Asia-Pacific Network Information 

Center 

APOP: Authenticated Post Office Protocol 

APP: Applecare Protection Plan 

Extended warranty (Apple) 

APP: APPlication 


APPC: Advanced Program to Program 

Communication 

APPCM: Access Protection and Priority 

Control Mechanism 

APPEL: A P3p Preference Exchange Language 

APPI: Advanced Peer-to-Peer 

Internetworking 

(Network) 

APPN: Advanced Peer-to-Peer Networking 

(Network) (IBM) 

APR: Advanced Port Replicator 

(Hardware) 

APR: Apache Portable Runtime 

Its mission is to provide a free library of C data structures 

and routines, forming a system portability layer to as many 

operating systems as possible, including Unices, MS 

Win32, BeOS and OS/2 (Software) 

APRP: Adaptive Pattern Recognition 

Processing 

APS: Active Pixel Sensor 

APS: Advanced Photo System 

APS: Advanced Printing Service 

(IBM) 

APS: Analog Protection System 

APS: Asynchronous Protocol Specification 

APS: Automatic Protection Switching 

A mean for automatically detecting and signalling a 

transmission link failure (Communication) 

APSE: Ada Programming Support 

Environment 

(Software) 

APSL: Apple Public Source License 

Software license (Apple) 

APSO: Audio Precision System One 

(Hardware) 

APT: Address Pass Through 


ARMA 

APT: Advanced Package Tool 

Software download/installation tool for Debian GNU/Linux 


APT: Advanced Parallel Technology 

APT: Automatically Programmed Tools 

APTC: Authorized Prometric Testing Center 

Sylvan Prometric is a division of Sylvan Learning Systems. 

It is the global leader in computer-based testing for 

academic assessment, professional licensure, and 

certification. 

APTM: Application Program to Transaction 

Manager 

APU: Audio Processing Unit 

(Hardware) 

APWG: Anti Phishing Working Group 

See http://www.antiphishing.org/ (Organizations) 

AQ: Advanced Queueing 


AR: Access Rate 

The data rate of the user access channel. The rate 

(maximum) at which access devices can offer data to the 

frame relay network (Communication) 

AR: Application Requester 

(IBM) 

ARA: Appletalk Remote Access 


ARAG: AntiReflective, AntiGlare 

ARAP: Appletalk Remote Access Protocol 

ARAS: AntiReflective, AntiStatic 

ARB: Architecture Review Board 

ARC: Advanced Risc Computer 

(Hardware) 

ARC: ARChive 


ARCA: Advanced Risc Computing Architecture 

ARCnet: Attached Resource Computer 

NETwork 

AREQIPA: Application REQuested Internet 

Protocol over Atm 

(Network) 

ARF: Abort, Retry, Fail 

ARIN: American Registry for Internet 

Numbers 


ARIS: Architecture of Integrated Information 

Systems 

ARIS: Attack Registry & Intelligence Service 

(Security) 

ARL: Access Rights List 

ARL: Adjusted Ring Length 

ARLL: Advanced Run Length Limited 

ARM: Advanced Risc Machine 

ARM: Annotated Reference Manual 

ARM: Application Response Measurement 

(Network) 

ARM: Asynchronous Response Mode 


ARMA: Association of Records Managers and 

Administrators 

Page 9 of 167 

A

ARMS 

ARMS: Architecture for Reliable Managed 

Storage 

ARO: Adaptec Raidport Option 


AROM: Alterable Read Only Memory 

ARP: Address Resolution Protocol 

The Internet protocol used to dynamically map Internet 

addresses to physical (hardware) addresses on local area 

networks. Limited to networks that support hardware 

broadcast. (Network) 

ARPA: Advanced Research Projects Agency 

Now called Defense Advanced Research Projects Agency 

(DARPA), the U.S. government agency that funded the 

ARPANET. (Organizations) 

ARPANET: Advanced Research Projects 

Agency NETwork 

A packet switched network developed in the early 1970s. 

The "grandfather" of today's Internet. ARPANET was 

decommissioned in June 1990. 

ARPL: Adjust Requested Privilege Level 

ARQ: Automatic Repeat reQuest 


ARS: Activity Reporting System 

ART: Adaptive Resonance Theory 

ART: Average Response Time 

ARTA: Apple Real Time Architecture 

ARTIC: A Real-Time Interface Coprocessor 

(IBM) 

ARTS: Asynchronous Remote Takeover 

Server 

ARTT: Asynchronous Remote Takeover 

Terminal 

ARU: Audio Response Unit 

ARX: Autocad Runtime eXtensions 

(Software) (Autodesk) 

AS: Advanced Server 

AS: Application Server 

(IBM) 

AS: Authentication Service 

AS: Autonomous System 

A self-connected set of networks that are generally 

operated within the same administrative domain (Network) 

AS/400: Application System/400 

(IBM) 

AS/U: Advanced Server for Unix 

AS3AP: Ansi Sql Standard Scalable And 

Portable 

Database benchmark (Databases) 

ASA: Active Server Application 


ASA: American Standards Association 

ASA: Architectures of Systems of Agents 

ASAI: Adjunct Switch Application Interface 

(AT&T) 

ASAP: As Soon As Possible 

(Net lingo) 

ASAP: Automatic Switching And Processing 

ASB: Advanced System Buffering 



ASC: Accredited Standards Committee 

ASC: ASCii text 


ASC: Authorized Support Centers 

ASC: Autonomous System Confederation 

(Network) 

ASCB: Address Space Control Block 

Used in IBM Mainframe OS's Multiple Virtual Storage 

(MVS) - z/OS (Operating systems) (IBM) 

ASCC: Automatic Sequence Controlled 

Calculator 

(IBM) 

ASCI: Accelerated Strategic Computing 

Initiative 

ASLM 

ASCII: American Standard Code for 

Information Interchange 

The standard binary encoding of alphabetical characters, 

numbers, and other keyboard symbols (7 bit character 

code.) 

ASD: Application Structure Database 

(Microsoft) 

ASD: Automatic Skip Driver 


ASDSP: Application-Specific Digital Signal 

Processor 

ASE: Active Storage Element 

ASE: Adaptive Server Enterprise 

(Databases) (Sybase) 

ASE: Alladin Smartcard Environment 

ASET: Automated Security Enhancement Tool 

A tool that allows a user to specify an overall system 

security level (low, medium, or high) and automatically 

maintain systems at those levels. 

ASF: Active Streaming Format 

(Microsoft) 

ASF: Advanced Streaming Format 

ASF: Apache Software Foundation 


ASF: Applied Science Fiction 

Manufacturer (ASF) 

ASI: Asynchronous Scsi Interface 

ASI: Automatic System Installation 

ASIC: Application-Specific Integrated Circuit 

A gate array or other non-standard chip design for 

proprietary use. (Hardware) 

ASID: Address Space IDentifier 

ASIT: Advanced Security and Identification 

Technology 

ASK: Amplitude Shift Keying 

ASL: Acpi Source Language 

ASL: Adaptive Speed Leveling 

ASL: Age? Sex? Location? 

Used to get to know people better (Net lingo) 

ASL: Apache Software License 

ASL: Arithmetic Shift Left 

(Software) 

ASLB: Accelerated Server Load Balancing 

ASLM: Apple Shared Library Manager 

(Apple) 

Page 10 of 167 

A

ASLT 

ASLT: Advanced Solid Logic Technology 

ASM: Advanced Server Manager 

(Operating systems) (Acer) 

ASM: Advanced System Management 

(IBM) 

ASM: ASseMbler 


ASM: Automatic Storage Management 

Oracle 10g database feature that provides the database 

administrator with a simple storage management interface 

that is consistent across all server and storage platforms 


ASMP: ASymmetric MultiProcessing 

System architecture that uses different types of 

processors in a multi-processor system (Hardware) 

ASN: Abstract Syntax Notation 

The International Organization for Standardization's open 

systems interconnection (OSI) language for describing 

abstract syntax. 

ASN: Autonomous System Number 

ASO: Automated Systems Operations 

ASOG: Access Service Ordering Guideline 

ASP: Active Server Pages 

Dynamic web pages engine (Software) (Microsoft) 

ASP: Advanced Signal Processing 

ASP: Appletalk Session Protocol 

ASP: Application Service Provider 

(Software) 

ASP: Association of Shareware Professionals 


ASP: Authorized Service Provider 

ASP: Auxiliary Storage Pool 

(IBM) 

ASP: Average Selling (or Street) Price 

ASPEN: Automatic System for Performance 

Evaluation of the Network 

ASPI: Advanced Scsi Programming Interface 

ASPN: ActiveState Programmer Network 

(Software) 

ASPS: Advanced Signal Processing System 

ASPX: Active Server Pages eXtended 

Dynamic web pages engine for the Microsoft .NET 

framework (Software) (Microsoft) 

ASQ: Automated Software Quality 

(Software) 

ASR: Access Service Request 

ASR: Address Space Register 

ASR: Arithmetic Shift Right 

(Software) 

ASR: Automatic Send-Receive 


ASR: Automatic Server Recovery 


ASR: Automatic Speech Recognition 

ASR: Automatic System Recovery 

AST: AST research, inc. 

Company named from first initials of the founders: Albert 

Wong, Safi Qureshey, Thomas Yuen 


AST: Atlantic Standard Time 


ASTRAL: Alliance for Strategic Token Ring 

Advancement and Leadership 

ASV: Advanced Super View 

LCD display technology (Hardware) 

ASVD: Analog Simultaneous Voice & Data 


ASX: Asf Stream Redirector 

File format (Microsoft) 

ASYNC: ASYNchronous Communication 


AT: Advanced Technology 

an IBM personal computer. Also a motherboard's form 

factor (IBM) 

ATL 

AT: ATtention 

Modem command prefix. Defined by the modem command 

set developed by the Hayes company for use on its 

modems and now used on most modems (Communication) 

AT: Azores Time 


AT&T: American Telephone And Telegraph 

ATA: Advanced Technology Attachment 

Peripheral bus architecture (Hardware) 

ATAG: Authoring Tool Accessibility Guidelines 

W3C recommendation that explains how to develop 

authoring tools that make it easier to produce accessible 

Web pages that conform to the Web Content Accessibility 

Guidelines (WCAG) 

ATAPI: Advanced Technology Attachment 

Packet Interface 

(Hardware) 

ATC: Address Translation Controller 

ATC: Advanced Transfer Cache 

(Hardware) 

ATDM: Asynchronous Time Division 

Multiplexer 

ATDNet: Advanced Technology 

Demonstration NETwork 

(Network) 

ATE: Asynchronous Terminal Emulation 

ATE: Atm Terminating Equipment 

ATE: Automatic Test Equipment 

ATEC: Authorized Technical Education Center 

(Microsoft) 

ATF: Automated Test Facility 

ATG: Advanced Technology Group 

ATI: Allied Telesyn International 

Networking hardware manufacturer (Hardware) 

ATIP: Absolute Time In Pregroove 

ATIS: Alliance for Telecommunication 

Industry Solutions 

Sett http://www.atis.org/ (Organizations) 

ATL: Active Template Library 

(Microsoft) 

ATL: Adaptive Threshold Learning 

ATL: Automated Tape Library 

(Hardware) 


A

ATLAS 

ATLAS: Authorization Token Layer 

Acquisition Service 

Describes the service needed to acquire authorization 

tokens to access a target system using the CSIv2 

protocol. This design defines a single interface with which a 

client acquires an authorization token 

ATM: Adobe Type Manager 

(Software) (Adobe) 

ATM: Air Traffic Management 

ATM: Asynchronous Transfer Mode 

A standard for switching and routing all types of digital 

information, including video, voice, and data. With ATM, 

digital information is broken up into standard-sized 

packets, each with the "address" of its final destination. 


ATM: At The Moment 

(Net lingo) 

ATM: Automatic Teller Machine 

ATMS: Assumption based Truth Maintenance 

System 

ATN: Australian Technology Network 

ATOB: Ascii TO Binary 

ATOMM: Advanced super Thinlayer and high- 

Output Metal Media 

ATP: Appletalk Transaction Protocol 


ATP: Application Transaction Program 

ATP: Available To Promise 

ATP2: AppleTalk Phase 2 

ATPS: AppleTalk Printing Services 

(Apple) 

ATR: Advanced Telecommunication Research 


ATR: Answer To Reset 

ATR: Automatic Terminal Recognition 

ATRAC: Adaptive TRansform Acoustic Coding 

Audio compression algorithm, introduced by Sony for its 

Mini Disk, which relies on the masking of low-amplitude 

frequency components by temporaly adjacent highamplitude 

components (Sony) 

ATS: Abstract Test Suite 


ATS: Administrative Terminal System 

ATS: Apple Terminal Services 

ATTN: ATTeNtion 

ATU: Adsl Transceiver Unit 

Commonly referred to as a DSL "modem" (Hardware) 

ATU-C: Adsl Transceiver Unit - Central 

In a DSL loop, the line card plugged into the DSLAM 

(Hardware) 

ATU-R: Adsl Transceiver Unit - Remote 

Commonly referred to as a DSL "modem" (Hardware) 

ATVEF: Advanced TeleVision Enhancement 

Forum 


ATX: Advanced Technology eXtended 

Motherboard format (Hardware) (Intel) 

AU: AUdio 


AUC: AUthentication Center 


AUDIT: AUtomated Data Input Terminal 

AUI: Attachment Unit Interface 

AUI: Audible User Interface 

AUP: Acceptable User Policy 

AUT: Application Under Test 

AUTODIN: AUTOmatic DIgital Network 

AUTOVON: AUTOmatic VOice Network 

AUX: Apple UniX 

AUX: AUXiliary 

AV: Access Violation 

(Software) 

AV: Anti Virus 

AV: Audio Video 

AV: Authenticity Verification 

AVA: Audio Visual Authoring 

(IBM) 

AVA: Avaya Certified Associate 

AWE 

AVATAR: Advanced Video Attribute Terminal 

Assembler and Recreator 

AVC: Advanced Visual Computing 

(SGI) 

AVC: Audio Visual Connection 

(IBM) 

AVD: Alternating Voice and Data 

AVE: Autocad Visualization Extension 

AVG: AVeraGe 

AVGA: Advanced Video Graphic Array 

AVI: Audio Video Interleaved 

File Format 

AVK: Application Verification Kit 

Tool intended to help developers test their applications for 

correct use of J2EE APIs and portability across J2EE 

compatible application servers, and to help developers 

avoid inadvertently writing non-portable code (Software) 

(Sun) 

AVP: Attribute-Value Pair 

AVR: Automatic Voice Recognition 

AVR: Automatic Voltage Regulation 

(Hardware) 

AVS: Adult Verification Service 

AVT: Applied Voice Technology 

AVT: Attribute Value Template 

(Software) 

AVTK: Anti Virus ToolKit 

(Software) 

AVVID: Architecture for Voice, Video and 

Integrated Data 

(Communication) (Cisco) 

AWAC: Audio Waveform Amplifier and 

Converter 

AWC: Advanced Web Creations 

AWD: Access Workflow Designer 

Organize and track information (Microsoft) 

AWDE: Artus Wireless Data Enhancer 

(Communication) (Nokia) 

AWE: Address Windowing Extensions 



A

AWE 

AWE: Advanced Wave Effects 

(Creative Labs) 

AWG: American Wire Gauge 

AWK: Aho, Weinberger and Kernighan 

Unix language named after its authors: Al Aho, Peter 

Weinberger and Brian Kernighan 

AWS: Advanced Workstations and Systems 

(IBM) 

AWT: Abstract Windows Toolkit 


AX: Architecture eXtended 

AXI: American eXpress Interactive 

b: Bit 

B: Byte 

B&W: Black & White 

B 

B/F: Background/Foreground 

B2B: Business to Business 

B2C: Business To Customer 

B2E: Business To Employee 

B2G: Business to Government 

E-commerce model 

B2X: Binary To heXadecimal 

(IBM) 

B8ZS: Binary 8 Zero Substitution 

Replaces strings of zeroes by pattern with pulses 


BA: Bell Atlantic 

BA: Brokering Agent 

BACP: Bandwidth Allocation Control Protocol 


BAD: Broken As Designed 

BAFUG: Bay Area Freebsd Users Group 


BAI: Bank Administration Institute 

File / report format used in financial services industry 

(Software) 

BAID: Bios Aware Ipl Device 

(Hardware) 

BAK: BAcKup 


BAK: Binary Adaptation Kit 

(Microsoft) 

BAKOM: BundesAmt für KOMmunikation 

Swiss regulatory Organisation (Organizations) 

BAL: Basic Assembly Language 

BALUN: BALanced UNbalanced 

BAM: Bidirectional Associative Memory 

BAM: Boyan Action Module 

BAP: Bandwidth Allocation Protocol 

BAPI: Business Application Programming 

Interface 

(Software) 

BAR: Base Address Register 

BARB: Board ARBiter 

Part of the bus arbitration system (Hardware) (Sun) 


BARRNET: Bay Area Regional Research 

NETwork 

BART: Basic Application RunTime 

BARTS: Bell Atlantic Regional TimeSharing 

BAS: BASic 


BAS: Borland AppServer 

(Borland) 

BASDA: Business and Accounting Software 

Developers Association 


BASH: Bourne Again SHell 

BASIC: Beginners All-purpose Symbolic 

Instruction Code 


BASM: Built-in ASseMbler 

BAT: Baby Advanced Technology 

A type of system board (Hardware) 

BAT: BATch 


BAT: Block Address Translation 

BAWUG: Bay Area Wireless Users Group 


BB: BridgeBoard 

BBB: Better Business Bureau 


BBB: Bit By Bit 

BBIALB: Be Back In A Little Bit 

(Net lingo) 

BBL: Be Back Later 

BBLT: Bus BLock Transfer 

BBR: Back Bone Ring 

BBS: Be Back Soon 

(Net lingo) 

BBS: Bios Boot Specification 

(Hardware) 

BBS: Bulletin Board System 


BC: Base Code 

BC: Business Component 

(Software) 

BCDBS 

BC4J: Business Components For Java 

Java 2 platform, Enterprise Edition (J2EE) framework that 

helps developers quickly construct high-performance J2EE 

applications following industry-standard design patterns 

(Software) (Oracle) 

BCA: BroadCast Agent 

Business Objects broadcast agent. See also 

http://www.businessobjects.com/products/bca/ (Software) 

BCC: Blind Carbon Copy 

BCC: Block Check Character 

In longitudinal redundancy checking and cyclic redundancy 

checking, a character transmitted by the sender after each 

message block and compared with a block-check character 

computed by the receiver to determine if the transmission 

was successful. 

BCD: Binary-Coded Decimal 

Character encoding scheme 

BCDBS: Broadband Connectionless Data 

Bearer Service 


A 

B

BCDIC 

BCDIC: Binary Coded Decimal Interchange 

Code 

BCEL: Byte Code Engineering Library 

Library intended to give users a convenient possibility to 

analyze, create, and manipulate (binary) Java class files 

(Software) 

BCF: Base station Control Function 

BCF: Busy Call Forwarding 

BCL: Base Class Library 


BCL: Batch Command Language 

BCN: Backbone Concentrator Node 

BCNF: Boyce/Codd Normal Form 

BCNU: Be Seeing You 

(Net lingo) 

BCP: Basic Call Process 

BCP: Best Current Practice 

BCP: Binary Communications Protocol 

BCP: Bridging Control Protocol 

BCP: Bulk Copy Program 

BCP: Byte Control Protocol 


BCPL: Basic Computer Programming Language 

BCR: Best Cost Routing 


BCR: Byte Count Register 

BCRC: Business Component Request Center 

(Software) 

BCS: Banking Communication Standard 

BCS: Bar Code Sorter 

BCS: Basic Catalog Structure 

(Operating systems) (IBM) 

BCS: Binary Compatibility Standard 

BCS: British Computer Society 

BCSM: Basic Call Sate Model 

BCSP: BlueCore Serial Protocol 

Host controller interface (HCI) procotol (Communication) 

BCU: Bios Configuration Utility 

BCU: Bus Controller Unit 

BCV: Boot Connection Vector 

A field in the Plug and Play (PnP) header for a device with 

an associated option ROM (Hardware) 

BD: Blu-ray Disc 

Name of a next-generation optical disc format jointly 

developed by thirteen leading consumer electronics and pc 

companies (Hardware) 

BDA: Bios Data Area 

BDB: Berkeley DataBase 

(Databases) 

BDC: Backup Domain Controller 

Secondary to the PDC, provides user/computer domain 

authentication (Operating systems) (Microsoft) 

BDE: Borland Database Engine 

(Databases) (Borland) 

BDF: Bitmap Description Format 

BDK: Bean Development Kit 



BDLC: Burroughs Data Link Control 

BDLS: BiDirectional Loop Switching 

BDM: Background Debug Mode 

(Hardware) 

BDOS: Basic Disk Operating System 


BDR: Bus Device Request 

BDSL: Broadband Digital Subscriber Line 


BE: Below or Equal 

BGI 

BECN: Backward Explicit Congestion 

Notification 

A bit sent by a frame relay network to notify an interface 

device (DTE) that congestion avoidance procedures should 

be initiated by the sending device (Communication) 

BEDO: Burst Data Extended Output 

(Hardware) 

BEEP: Blocks Extensible Exchange Protocol 

BEL: BELl 

Control character 

BELLCORE: BELL COmmunications REsearch 

BER: Basic Encoding Rules 

Standard rules for encoding data units described in ASN.1. 

Sometimes incorrectly lumped under the term ASN.1, 

which properly refers only to the abstract syntax 

description language, not the encoding technique. 

BER: Bit Error Rate 


BERT: Bit Error Rate Test 


BEST: Borland Enhanced Support and Training 

BET: Bit Enhancement Technology 

(Hardware) 

BEV: Boot Entry Vector 

A field in the Plug and Play (PnP) Header of a device with 

an associated option ROM. Preboot eXecution 

Environment (PXE) is implemented as a BEV option ROM 

(Hardware) 

BF: Bad Flag 

BFC: BrieFCase 


BFE: Bum F*** Egypt 

A remote unknown location (Net lingo) 

BFF: Binary File Format 

(IBM) 

BFN: Bye For Now 

(Net lingo) 

BFRS: Base File Record Segment 

BFS: Business Forecasting Software 

BFT: Binary File Transfer 

BFTP: Batch File Transfer Protocol 

BGA: Ball-Grid Array 

Integrated circuit (IC) packaging that uses half-spherical 

contacts versus pins (Hardware) 

BGAN: Broadband Global Area Network 

(Network) 

BGE: Branch if Greater or Equal 

BGI: Borland Graphics Interface 



B

BGP 

BGP: Border Gateway Protocol 

An Internet routing protocol used to pass routing 

information between different administrative routing 

domains or Autonomous Systems. BGP does not pass 

explicit topology information and is often used between 

Internet service providers (Network) 

BGT: Branch if Greater Than 

BHI: Branch if HIgher 

BHIS: Branch if HIgher or Same 

BHLI: Broadband High Layer Information 

BHO: Browser Helper Object 


BI: Binary Input 

BI: Business Intelligence 

BIA: Burned-In Address 

A.k.a. MAC Address; unique identifier coded into every 

NIC (Network) 

BIAB: Band-In-A-Box 

BIB: Back In Business 

Usually said after saying BRB (Be Right Back) to say that 

you're back (Net lingo) 

BIB: BIBliography 


BICI: Broadband InterCarrier Interface 

BiDi: BIDIrectional 

BIDS: Borland International Data Structures 

BIF: Benchmark Interchange Format 

In computer graphics, a standardized file structure for 

specifying the geometry of a particular data set from a 

particular application as well as the user interactions to be 

performed. 

BIFET: BIpolar Field Effect Transistor 

BIFF: Binary Interchange File Format 

BIFS: BInary Format for Scenes 

BIG: Business Information Guide 

Data warehousing (Databases) 

BIM: Beginning of Information Marker 

BIM: Broadband Interface Module 

BIN: BINary 


BINAC: BINary Automatic Computer 

BIND: Berkeley Internet Name Daemon 

(Network) 

BINHEX: BINary HEXadecimal 

BINL: Boot Information Negotiation Layer 


BIOML: BIOpolymer Markup Language 

XML language designed to be used for the annotation of 

biopolymer sequence information. BIOML allows the full 

specification of all experimental information known about 

molecular entities composed of biopolymers, for example, 

proteins and genes 

BIOS: Basic Input/Output System 

The program a personal computer's microprocessor uses 

to get the computer system started after you turn it on 

BIP: Bit Interleaved Parity 

BIPM: Bureau International des Poids et des 

Mesures 



BIPS: Bank Internet Payment System 

The BIPS specification includes a protocol for sending 

payment instructions to banks safely over the Internet and 

a payment server architecture for processing those 

payment instructions 

BIPV: Bit Interleaved Parity Violation 

BIRT: Business Intelligence and Reporting 

Tools 

Open source, Eclipse-based reporting system that 

integrates with your application to produce compelling 

reports for both web and PDF. See also 

http://www.eclipse.org/birt/ (Software) 

BIS: Boot Integrity Service 

BIS: Business Information System 

BISDN: Broadband Integrated Services 

Digital Network 


BISP: Business Information System Program 

BISSI: Broadband Inter-Switching System 

Interface 

BIST: Built-In Self Test 

BL 

BISYNC: BInary SYNchronous Communications 

BIT: Binary digIT 

BitBLT: BIT BLock Transfer 

A raster operation that moves a block of bits representing 

some portion of an image or scene from one location in the 

frame buffer to another. 

BITNET: Because It's Time NETwork 

Academic computer network based originally on IBM 

mainframe systems interconnected via leased 9600 bps 

lines. 

BITNIC: BITnet Network Information Center 

BITS: Background Intelligent Transfer 

Service 

Enables developers to write client applications that 

transfer files asynchronously between a client and server. 

BITS automatically resumes file transfers after network 

disconnects and machine reboots (Operating systems) 

(Microsoft) 

BITS: Bump-In-The-Stack 

Configuration where IPsec is implemented "underneath" an 

existing implementation of an IP protocol stack, between 

the native IP and the local network drivers. This approach, 

when it is adopted, is usually employed in hosts (Network) 

BITW: Bump-In-The-Wire 

Configuration where IPsec is implemented through the use 

of an outboard crypto processor. Such implementations 

may be designed to serve either a host or a gateway (or 

both) (Network) 

BIU: Bus Interface Unit 

(Hardware) 

BIW: Business Intelligence Warehouse 

BIX: Byte Information eXchange 

Byte's bulletin board system 

BJ: Bubble Jet 

(Hardware) (Canon) 

BJC: Bubble Jet Color 


BKM: Best Known Method 

Based on previous experience, the prefered method for 

completing a task 

BKSP: BacKSPace 

BL: BackLit 


B

BL 

BL: Bit Line 

BLAST: BLocked ASynchronous Transmission 

Protocol 

BLE: Branch if Less or Equal 

BLER: BLock ERror 

BLERT: BLock Error Rate Test 


BLISS: Broadband Local Integrated Services 

Solution 

Allows service providers to offer a bundle of packet-based 

services including local and long distance voice services 

and high-speed data (Network) (Cisco) 

BLK: BLocK 

BLL: Business Logic Layer 

BLLI: Broadband Low Layer Information 

BLMC: Buried Logic MacroCell 

BLOB: Binary Large OBject 

(Databases) 

BLOG: weB LOG 

BLOS: Branch if LOwer Or Same 

BLT: Baghdad Local Time 

Timezone: GMT +3:00 

BLT: BLock Transfer 

BMI: Branch if MInus 

BMIC: BusMaster Interface Controller 

(Intel) 

BML: Bean Markup Language 

BML: Business Management Layer 

BMOS: Bipolar Metal Oxide Semiconductor 

BMP: Basic Multilingual Plane 

First 16-bit subset of the universal character set (UCS). 

Also known as Plane 0 

BMP: Batch Message Processing 

BMP: Bean-Managed Persistence 

(Software) 

BMP: BitMaP 

File Format for bitmapped images 

BMR: Ballistic Magneto-Resistive 

Hard disk head technology (Hardware) 

BMS: Basic Mapping Support 

BMS: Broadcast Message Server 

BMUG: Berkeley Macintosh User Group 

BN: Backbone Network 

Large network to which many networks within an 

organization are connected (Network) 

BNC: Bayonet Neill-Concelman 

Connector (Hardware) 

BNC: Bayonet Nut Connector 

(Hardware) 

BNC: British Naval Connector 

Connector (Hardware) 

BNE: Branch if Not Equal 

BNF: Backus Naur Form 

Syntax description for programming languages 

BNP: Broadband Network Premises 

BNS: Backbone Network Service 

(Network) 


BNU: Basic Networking Utilities 

BO: Binary Output 

BO: Business Object 

(Software) 

BOA: Basic Object Adapter 

BoB: Break-Out Box 

BOC: Basic Operator Console 

BOT 

BOC: Bell Operating Company 

More commonly referred to as RBOC for "regional Bell 

operating company." The local telephone company in each 

of the seven U.S. regions. 

BOCA: Borland Object Component 

Architecture 

BOCS: Business Object Component Set 

(Software) 

BOD: Bandwidth On Demand 

(Network) 

BOF: Beginning Of File 

BOF: Bird Of a Feather 

Small conference 

BoF: Buffer OverFlow 

(Security) 

BOFH: Bastard Operator From Hell 

A system administrator or technician with very little 

patience who frequently does evil things to users (Net 

lingo) 

BOGOF: Buy One Get One Free 

Denotes cheap stuff that usually comes in bundled or 

packaged form; connotation is "low quality" (Net lingo) 

BOHICA: Bend Over, Here It Comes Again 

(Net lingo) 

BOI: Business Object Interface 

(Software) 

BOL: Books OnLine 

(Microsoft) 

BOM: Basic Online Memory 

(IBM) 

BOM: Beginning Of Message 

BOM: Byte Order Mark 

BOND: Bandwidth ON Demand 

BONE: BeOs Networking Environment 


BONM: Business-Oriented Network 

Management 

BOOTP: BOOTstrap Protocol 

A legacy remote booting protocol developed originally for 

use with UNIX (Network) 

BOP: Bit-Oriented Protocol 


BOPS: Billion Operations Per Second 

BOPS: Billions of Processes Per Second 

Processing speed (Hardware) 

BOR: Business Objects Repository 

(Software) 

BOS: Basic Operating System 

BOT: Beginning Of Table 

BOT: Beginning Of Tape 

(Hardware) 

BOT: Build, Operate and Transfer 


B

BOT 

BOT: roBOT 

BP: BackPropagation 

BP: Base Pointer 

Processor register (Hardware) (Intel) 

BP: Business Planner 


BPB: Bios Parameter Block 

BPCS: Business Planning and Control System 

An ERP/MRP program (Software) 

BPDU: Bridge Protocol Data Unit 

BPEL: Business Process Execution Language 

(Software) 

BPEL4WS : Business Process Execution 

Language For Web Services 

(Software) 

BPF: Berkeley Packet Filter 

bpi: Bits Per Inch 

Recording Density 

BPI: Business Process Integration 

BPL: Branch if Plus 

BPL: Broadband over Power Lines 

(Network) 

Bpl: Bytes Per Line 

BPM: Business Procurement Management 

(Software) 

BPN: Business Partner Network 

BPO: Business Process Outsourcer 

bpp: Bits Per Pixel 

BPR: Business-Process Reengineering 

bps: Bits Per Second 

Transfer speed (Communication) 

Bps: Bytes Per Second 


BPSK: Binary Phase-Shift Keying 

BPU: Branch Processing Unit 

BPV: BiPolar Violation 

T1 line code error with AMI encoding (Communication) 

BR: Bad Register 

BRAN: Broadband Radio Access Networks 

An ETSI project, it provides telecommunications services 

the middle ground between mobile systems and the wired 

access world. BRAN is working on radio systems to meet 

the new requirements of the information age 


BRB: Be Right Back 

(Net lingo) 

BRD: Blue Ray Disk 

(Hardware) 

BRF: Benchmark Report Format 

In computer graphics, a standard format for reporting 

benchmark results. This format provides the purchaser 

with a consistent data-tracking system for comparing 

hardware platforms. 

BRGC: Binary Reflected Gray Code 

BRI: Basic Rate Interface 

One of the standard ISDN interfaces defined by the CCITT 

protocols. BRI consists of two B channels (64 kbps) and 

one D channel (16 kbps). (Communication) 

BRI: Brain Response Interface 


BRIEF: Basic Reconfigurable Interactive 

Editing Facility 

BRS: Big Red Switch 

BRT: Be Right There 

(Net lingo) 

BRU: Backup/Restore Utility 

(Software) 

BS: BackSpace 

BS: Banded Signaling 

BS: Base Station 

BS: BullSh** 

You say this when you think someone is lying (Net lingo) 

BSA: Business Software Alliance 

BSAM: Basic Sequential Access Method 

BSC: Base Station Controller 

BSC: Binary Synchronous Communication 


BSC: Boyan SCript 


BSC: Bus State Controller 

(Hardware) 

BSCM: Binary Synchronous Communications 

Module 

BSCS: Bachelor of Science in Computer 

Science 

BSS 

BSD: Berkeley Software Distribution 

UNIX versions developed at the University of California at 

Berkeley. (Operating systems) 

BSDS: BootStrap Data Set 

BSF: Bean Scripting Framework 

Architecture for incorporating scripting into Java 

applications and applets (Software) 

BSF: Bit Scan Forward 

BSI: Bentley Systems, Incorporated 

BSI: BiSynchronous Interface 

(Network) 

BSI: British Standards Institute 

BSM: Basic Storage Module 

(IBM) 

BSML: Bioinformatic Sequence Markup 

Language 

BSOD: Blue Screen Of Death 


BSP: Binary Space Partitioning 

BSP: Bulk Synchronous Parallelism 

BSP: Business Service Provider 

BSR: Bit Scan Reverse 

BSRAM: Burst Static Random Access Memory 

(Hardware) 

BSS: Basic Service Set 


BSS: Block Started by Symbol 

BSS: Broadband Switching System 

BSS: Business Support System 

Network management software to monitor performance and 

resources (Software) 


B

BSSID 

BSSID: Basic Service Set IDentifier 


BSSMAP: Base Station System Management 

Application Part 

BST: Binary Search Tree 

BST: British Summer Time 


BSV: Boot Sector Virus 

BSY: BuSY 

BT: Bit Test 

BT: Bus Terminator 

BTA: But Then Again 

(Net lingo) 

BTAM: Basic Tape Access Method 

BTAM: Basic Telecommunication Access 

Method 

(IBM) 

BTB: Branch Target Buffer 

(Hardware) 

BTC: Bit Test and Complement 

BTI: Business Type Identifier 

BTL: Bell Telephone Laboratories 

BTLB: Block Translation Look-aside Buffer 

BTM: Benchmark Timing Methodology 

In computer graphics, a method of measuring how long it 

takes to run the purchaser's benchmark interchange format 

program. 

BTO: Built To Order 

BTOA: Binary TO Ascii 

BTP: Batch Transfer Program 

BTR: "Bet The Ranch" 

BTR: Bit Test and Reset 

BTS: Base Transceiver Station 

BTS: Bit Test and Set 

BTSOOM: Beats The S**t Out Of Me 

(Net lingo) 

BTT: Back To the Top 

Used in an on-line discussion forum to bump a topic back 

to the top of the page where more people can see it (Net 

lingo) 

BTU: Basic Transmission Unit 

BTU: British Thermal Unit 

A unit of thermal energy 

BTW: By The Way 

(Net lingo) 

BTX: Balanced Technology eXtended 

Motherboard form factor, designed to replace ATX 

(Hardware) 

BTX: BildschirmTeXt 

BU: Bluetooth Unit 

(Hardware) 

BU: Branch Unit 

BU: Bulk Update 

Updating many rows in a table in a single operation 

(Databases) 

BUBL: BUlletin Board for Libraries 

BUF: BUFfer 


BUI: BUs Interface 

BURN: Buffer UnderRuN 

(Hardware) 

BUS: Broadcast and Unknown Server 

(Network) 

BVCP: Banyan Vines Control Protocol 

BVH: Base Video Handler 

BVO: Business Value Orientation 

BVT: Behavioral Verification Technology 

(IBM) 

BVT: Build Verification Test 

CAE 

BW: Bus Watcher 

Mechanism that converts XDBus signals to XBus signals 

and passes them to the Module XBus Cache Controller 

(Hardware) (Sun) 

BWA: Broadband Wireless Access 


BWBM: BandWidth Balancing Mechanism 

BWM: Block-Write Mode 

BYOB: Bring Your Own Beer 

(Net lingo) 

BYORL: Bring Your Own Rocket Launcher 

(Net lingo) 

BZR: Bit Zone Recording 

C: C 

Programming language 

C 

C&T: Chips And Technologies 

C/D: Control Data 

C/S: Client/Server 

C2D: Character To Decimal 

(IBM) 

C2T: Cable Changing Technology 

C2X: Character To heXadecimal 

(IBM) 

CA: Certification Authority 

CA: Chromatic Aberration 

CA: Collision Avoidance 

CAAD: Computer Aided Architectural Design 

CAB: CABinet 


CAB: Compressed Application Binary 

(Microsoft) 

CABS: Carrier Access Billing System 

CAC: Connection Admission Control 

CACP: Central Arbitration Control Point 

CAD: Computer-Aided Design 

Use of computer graphics technology to design electronic 

and mechanical parts and machinery. 

CAD: Custom Application Developer 

CADD: Computer-Aided Design and Drafting 

CADE: Client/server Application 

Development Environment 

CADE: Computer-Aided Document Engineering 

CAE: Client Application Enabler 


B 

C

CAE 

CAE: Common Application Environment 

CAE: Computer Aided Education 

CAE: Computer-Aided Engineering 

CAEN: Chemically-Assembled Electronic 

Nanocomputer 

(Hardware) 

CAEX: Computer Aided EXploration 

CAG: Column Address Generator 

CAGR: Compound Annual Growth Rate 

CAI: Computer Associates International 

(CAI) 

CAI: Computer-Aided Instruction 

CAIRN: Collaborative Advanced Interagency 

Research Network 

CAIS: Common Apse Interface Specification 

CAL: CALendar 

CAL: Client Access License 

CAL: Computer Aided Logistics 

CAL: Computer-Assisted Learning 

CALL: Computer-Aided Language Learning 

CALS: Continuous Acquisition and Life-cycle 

Support 

CAM: Common Access Method 


CAM: Computer-Aided Manufacturing 

CAM: Content-Addressable Memory 

(Hardware) 

CAMAC: Computer Automated Measurement 

And Control 

CAMM: Computer Assisted Material 

Management 

CAMMU: CAche/Memory Management Unit 

(Hardware) 

CAN: CANcel 

CAN: Controller Area Network 

CANBUS: Controller Area Network BUS 

(Network) 

CAO: Computer Account Object 


CAO: Computer Aided Office 

CAP: CAPture 


CAP: Carrierless Amplitude and Phase 

modulation 


CAP: Central Arbitration Point 

CAP: Communication Application Platform 

CAP: Competitive Access Provider 

CAP: Computer-Aided Planning 

CAP: Computer-Aided Publishing 

CAP: Converted APplet 

(Software) 

CAPD: Computing to Assist Persons with 

Disabilities 

CAPE: Concurrent Art-to-Product Environment 


CAPI: Common Application Programming 

Interface 


CAPP: Computer Aided Process Planning 

CAPS: CAPitalS 

Uppercase letters 

CAPS: CAssette Programming System 

CAT 

CAPTCHA: Completely Automated Public 

Turing test to tell Computers and Humans 

Apart 

Pronounced as "KAP.chuh", it's a computer-generated test 

that humans can pass but computer programs cannot. For 

more information, see http://www.captcha.net/, 

http://en.wikipedia.org/wiki/Captcha or 

http://www.wordspy.com/words/captcha.asp 

CAQ: Computer Aided Quality 

CAR: Committed Access Rate 

(Cisco) 

CAR: Courtesy Amount Recognition 

CARB: Central ARBiter 

On Sun servers, a system of central arbiters (one CARB on 

the control board) and a board arbiter (BARB) (one on 

every system board) determine which processor on which 

system board controls the system bus at any given time. 


CARCAS: Computer Aided aRchiving and 

Change Accounting System 

CARL: Colorado Alliance of Research Libraries 

CARP: Cache Array Routing Protocol 

(Microsoft) 

CARP: Common Address Redundancy Protocol 

Allows multiple hosts on the same local network to share a 

set of IP addresses among them (Network) 

CART: Computer-Assisted Radar Tomography 

CAS: Channel Associated Signaling 

CAS: Code Access Security 


CAS: Column Address Select 

CAS: Column Address Strobe 

CAS: Communication Applications 

Specification 

CAS: Computer Algebra System 

CAS: Computer-Aided Styling 

CAS: Computerized Autodial System 

CASE: Computer-Aided Software Engineering 

CASL: Crosstalk Application Scripting 

Language 

CASS: Computer Assisted Search Service 

CASSIS: Classified and Search Support 

Information System 

CAT: CATalog 


CAT: CATegory 

Short term used to refer to different types of cabling (ie. 

CAT5.) (Hardware) 

CAT: Central Alaska Time 


CAT: Common Authentication Technology 

CAT: Computer Adaptive Test 

CAT: Computer Aided Tomography 


C

CAT 

CAT: Computer Aided Transcription 

CAT: Computer-Aided Telephony 

CAT: Computer-Aided Testing 

CAT: Computer-Assisted Training 

CAT: Computer-Assisted Translation 

Indicates the use of a series of data processing tools 

aimed at assisting the translator on a level of coherency 

(consistency) of the text and in terms of working speed 

CATIA: Computer Aided Three-dimensional 

Interactive Application 

CAD/CAM program from Dassault Systems 

CATID: CATegory IDentifier 

(Software) 

CATS: Computer Assisted Training System 

CATV: CAble TeleVision 

(Hardware) 

CATV: Community Antenna TeleVision 

(Hardware) 

CAU: Cable Access Unit 

(Hardware) 

CAU: Controlled Access Unit 

CAV: Constant Angular Velocity 

(Hardware) 

CAVE: Computer-Assisted Virtual Environment 

CAVERN: Computer-Assisted Virtual 

Environment Research Network 

CAVIT: Convergence of Audio/Video 

Information Technology 

CAWE: Computer-Aided Web Engineering 

CBA: Can't Be Arsed 

For when you can't be bothered (Net lingo) 

CBBS: Computer Bulletin Board System 

CBC: Cipher Block Chaining 

CBCR: Channel Byte Count Register 

CBCS: Computer Based Conversation System 

CBD: Component-Based Development 

(Software) 

CBDO: Chief Business Development Officer 

CBDS: Connectionless Broadband Data 

Service 

CBEMA: Computer and Business Equipment 

Manufacturers Association 

CBGA: Ceramic Ball Grid Array 

CBI: Computer Based Instruction 

CBIOS: Compatibility Basic Input Output 

System 

CBIR: Committed Rate Information Burst 

The rate above the Committed Information Rate (CIR) up 

to which the frame relay network can transmit 


CBL: CoBoL 


CBL: Common Business Library 

CBL: Computer Based Learning 

CBLT: Character BLock Transfer 

CBM: Commodore Business Machines 

Company; among the first home computer manufacturers 

(PET, VIC20, C64, C128, Amiga) 


CBMS: Computer-Based Mail System 

CBO: Cost-Based Optimizer 


CCDP 

CBQ: Class-Based Queuing 

A public domain QoS methodology for classifying packets 

and queuing them according to criteria defined by an 

administrator to provide differential forwarding behavior for 

each traffic class (Network) 

CBR: Case Based Reasoning 

CBR: Constant Bit Rate 

A class of service defined by ATM. Multimedia 

streams—audio and video—are examples of CBR 

applications, since they send at a relatively steady data 

rate with constant bandwidth allocations (Network) 

CBT: Canon Buffer Transmission 

CBT: Computer Based Training 

CBT: Core Based Tree 

(Network) 

CBW: Convert Byte to Word 

CBWFQ: Class-Based Weighted Fair Queueing 

Extends the standard WFQ functionality to provide support 

for user-defined traffic classes. For CBWFQ, you define 

traffic classes based on match criteria including protocols, 

access control lists (ACLs), and input interfaces (Network) 

(Cisco) 

CBX: Computer-controlled Branch Exchange 

CC: Call Control 


CC: Carbon Copy 

CC: Cascade Correlation 

CC: Cluster Controller 

CC: Control Channel 


CC: Credit Card 

CC: Cross Connector 

CC/PP: Composite Capability/Preference 

Profile 

CCA: Cardholder Certification Authority 

CCA: Citrix Certified Administrator 

Entry to mid level certification for IT professionals who 

want to “demonstrate product expertise on Citrix platform 

products (Citrix MetaFrame XP Presentation Server, Citrix 

MetaFrame 1.8 for Windows, or Citrix MetaFrame 

Presentation Server for UNIX) 

CCAF: Call Control Agent Function 

CCC: Chaos Computer Club 

CCC: Computer Control Center 

CCC: Cordless Computer Connection 

(Hardware) (IBM) 

CCD: Charge Coupled Device 

(Hardware) 

CCDA: Cisco Certified Design Associate 

Introductory to mid-level certification for IT professionals 

who can design routed and switched network 

infrastructures involving LAN, WAN, and dial access 

services for businesses and organizations (Cisco) 

CCDP: Cisco Certified Design Professional 

Mid to advanced-level certification for IT professionals 

who can design routed and switched networks involving 

LAN, WAN, and dial access services (Cisco) 


C

CCEA 

CCEA: Citrix Certified Enterprise 

Administrator 

Mid level certification for IT professionals who want to 

expand their knowledge of Citrix products and give them 

even more extensive experience installing and 

administering the Citrix MetaFrame suite of products 

CCF: Cold-Cathode Fluorescent 

(Hardware) 

CCF: Common Connector Framework 

(Software) (IBM) 

CCF: Connection Control Function 

CCFT: Cold Cathode Fluorescent Tube 

CCI: Common Client Interface 

CCIC: Committee on Computing, Information 

and Communications 


CCIE: Cisco Certified Internet Expert 

Advanced-level certification for IT professionals who have 

the training, experience and confidence to tackle the most 

challenging problems in their field (Cisco) 

CCIN: Coordinating Committee of 

International Networks 

CCIP: Cisco Certified Internetwork 

Professional 

Mid-level certification for IT professionals who have a 

detailed understanding of networking technologies in the 

service provider arena including IP routing, IP QoS, BGP, 

and MPLS (Cisco) 

CCIR: Comité Consultatif International de la 

Radio 

A treaty organization, part of the International 

Telecommunications Union (ITU), responsible for obtaining 

international agreement on standards for radio and 

television transmission and the international exchange of 

programs. 

CCIS: Common Channel Interoffice Signaling 

CCITT: Comité Consultatif International de 

Télégraphique et Téléphonique 

Now it's called ITU (Organizations) 

CCK: Client Customization Kit 

Set of tools that help distributors customize and distribute 

the client. Support is provided for creating CD and 

download installers. Wizards are provided to simplify 

customization, installation, and ISP signup 

CCK: Complementary Code Keying 


CCL: Common Command Language 

CCL: Connection Control Language 

CCL: Console Command Language 

CCM: Change Configuration Management 

CCM: Comprehensive Client Manager 

CCM: Concurrency Control Mechanism 

(Databases) 

CCM: Corba Component Model 

CCMSE: Checkpoint Certified Managed 

Security Expert 

Advanced certification for security professionals 

implementing Check Point's VPN-1/FireWall-1 and 

Provider-1 Internet security solutions 

CCN: Computer Communication Network 


ccTLD 

CCNA: Cisco Certified Network Associate 

Introductory-level certification for IT professionals who 

can install, configure, and operate LAN, WAN, and dial 

access services for small networks (100 nodes or fewer) 

(Cisco) 

CCNA: Customer Carrier Name Abbreviation 


CCNC: Common Channel Network Controller 

CCNC: Computer/Communications Network 

Center 

CCNP: Cisco Certified Network Professional 

Intermediate-level certification for IT professionals who 

can install, configure, and troubleshoot local and wide area 

networks for enterprise organizations with networks from 

100 to more than 500 nodes (Cisco) 

CCP: Certified Computing Professional 

CCP: Command Console Processor 

CCP: Compression Control Protocol 

Used for establishing and configuring data compression 

algorithms over PPP, is responsible for configuring, 

enabling, and disabling data compression algorithms on 

both ends of the point-to-point link. See 

http://www.networksorcery.com/enp/protocol/ccp.htm 

(Network) 

CCP: Console Command Processor 

CCR: Commitment, Concurrency and Recovery 

An International Organization for Standardization's open 

systems interconnection (OSI) application service 

element used to create atomic operations across 

distributed systems. (Software) 

CCRMA: Center for Computer Research in 

Music and Acoustics 

CCS: Color Calibration System 

CCS: Common Channel Signaling 


CCS: Common Command Set 

SCSI command set 

CCS: Common Communications Support 

(IBM) 

CCS: Continuous Composite Servo 

CCS: Cryptographic CheckSum 

(Security) 

CCS7: Common Channel signaling System 7 

CCSA: Checkpoint Certified Security 

Administrator 

Checkpoint's initial security certification. Stage 2 is the 

CCSE (Security) 

CCSD: Cellular Circuit-Switched Data 

CCSE: Checkpoint Certified Security Expert 

Checkpoint Certification. Stage 2 after completing the 

CCSA (Security) 

CCSID: Coded Character Set IDentification 

CCSP: Cisco Certified Security Professional 

Advanced-level certification for IT professionals who are 

actively involved in developing business solutions and 

designing and delivering multiple levels of security 

departments (Cisco) 

CCT: China Coast Time 


CCT: Compuserve Communication Toolbox 

(CompuServe) 

ccTLD: Country Code Top Level Domain 

(Network) 


C

CCU 

CCU: Cache Control Unit 

CCW: Channel Command Word 


CCW: Com Callable Wrapper 


CCXML: Call Control eXtensible Markup 

Language 

Is designed to provide telephony call control support for 

VoiceXML or other dialog systems. CCXML has been 

designed to complement and integrate with a VoiceXML 

interpreter 

CD: Carrier Detect 

Serial port signal (Communication) 

CD: Change Directory 

CD: Collision Detect 


CD: Color Display 

CD: Compact Disk 

(Hardware) 

CD+G: Compact Disk Plus Graphics 

CD+MIDI: Compact Disk Plus Musical 

Instruments Digital Interface 

CDA: Communications Decency Act 

CDA: Compact Disk Audio 

Filename extension for CD audio tracks 

CDA: Compound Document Architecture 

(DEC) 

CDBS: Connectionless Data Bearer Service 

CDBT: Compact Disk-Based Training 

CDC: Connected Device Configuration 

Provides a virtual machine and basic class libraries to 

support Java language applications on consumer electronic 

and embedded devices such as smart communicators, 

pagers, PDAs, and interactive, digital television set-top 

boxes (Sun) 

CDC: Control Data Corporation 

CD-DA: Compact Disk Digital Audio 

CDDI: Copper Distributed Data Interface 

CDE: Certified Directory Engineer 

(Network) (Novell) 

CDE: Common Desktop Environment 

A graphical user interface running on UNIX. (Operating 

systems) 

CDE: Complex Data Entry 

CDE: Cooperative Development Environment 

CD-E: Compact Disc Erasable 

(Hardware) 

CDF: Channel Definition Format 

Is an application of the eXtensible Markup Language (XML) 

designed for push technology 

CDF: Comma Delimited Format 


CDF: Compound Document Framework 

Combination mechanism for XML-based languages. 

Therefore, all conformant compound documents have an 

XML-based root document 

CDFS: Compact Disk File System 


CD-I: Compact Disk Interactive 

(Hardware) 


CDRL 

CDIA: Certified Document Imaging Architect 

CDID: Compact Disk Image Designer 

CDIF: Case Data Interchange Format 

Family of standards that lays out a single architecture for 

exchanging information between modelling tools, and 

between repositories, and defines the interfaces of the 

components to implement this architecture 

CDK: Content Development Kit 


CDK: Control Development Kit 


CDL: Computer Design Language 

CDM: Control Development Module 

CDMA: Code Division Multiple Access 

CDMF: Commercial Data Masking Facility 

(IBM) 

CDML: Claris Dynamic Markup Language 

(Claris) 

CD-MO: Compact Disk Magneto Optical 

CD-MRW: Compact Disk-Mount rainier 

ReWriteable 

Standard that enables native OS support of data storage 

on CD-RW. This makes the technology far easier to use 

and allows the replacement of the floppy. See 

http://www.mt-rainier.org/ (Hardware) 

CDN: Content Delivery Network 

CDO: Collaboration Data Objects 

CDONTS: Collaboration Data Objects for 

windows New Technology Server 


CDOS: Concurrent Disk Operating System 

CDP: Certificate in Data Processing 

One of the first certifications for computer professionals 

CDP: Cisco Discovery Protocol 

Used by Cisco Routers (Network) (Cisco) 

CDP: Crl Distribution Point 

(Security) 

CDPD: Cellular Digital Packed Data 


CD-PROM: Compact Disk Programmable Read 

Only Memory 

(Hardware) (Kodak) 

CDR: Call Detail Record 


CDR: Clock and Data Recovery 

(Hardware) 

CDR: Common Data Representation 

CDR: Corel DRaw 


CD-R: Compact Disk Recordable 

(Hardware) 

CDRA: Character Data Representation 

Architecture 

(IBM) 

CDRAM: Cache Dynamic Random Access 

Memory 

(Hardware) 

CD-RDx: Compact Disk - Rom Data eXchange 

CDRL: Contract Data Requirements List 


C

CD-ROM 

CD-ROM: Compact Disk Read Only Memory 

A form of storage characterized by high capacity (roughly 

600 megabytes) and the use of laser optics rather than 

magnetic means for reading data. (Hardware) 

CD-RTOS: Compact Disk - Real Time 

Operating System 

CD-RW: Compact Disk-ReWriteable 

(Hardware) 

CDS: Cell Directory Service 

CDS: Correlated Double Sampling 

Technology to clean the image signal during scanning 

(Hardware) 

CDS: Current Directory Structure 

CDSA: Common Data Security Architecture 

CDSL: Consumer Digital Subscriber Line 


CDT: C/C++ Development Tools 

Eclipse subproject working towards providing a fully 

functional C and C++ Integrated Development 

Environment (IDE) for the Eclipse platform (Software) 

CDT: Cambridge Display Technology 

CDT: Center for Democracy and Technology 


CDT: Central Daylight Time 


CDT: Corel Draw Template 


CDV: Cell Delay Variation 

In an ATM network, the variation in cell delay through the 

network (Network) 

CD-V: Compact Disk - Video 

CDW: Computer Discount Warehouse 

Computer store 

CDW: Copy Database Wizard 


CD-WO: Compact Disk - Write Once 

CDX: CompounD indeX 


CD-XA: Compact Disk - eXtended Architecture 

CE: Cache Enable 

CE: Chip Enable 

CE: Collision Elimination 

CE: Compact Edition 

CE: Convert Enable 

CE: Customer Engineer 

CEA: Cisco Enterprise Accounting 

(Cisco) 

CEA: Consumer Electronic Association 


CEBIT: CEntrum Büro Information 

Telekommunikation 

CEBUS: Consumer Electronics BUS 

(Hardware) 

CEC: Certified E-commerce Consultant 

CEF: Common Executable Format 

Format that allows a single executable to be produced to 

run on all Pocket PC devices, regardless of processor 

(Software) 

CEG: Continuous Edge Graphics 


CF 

CEH: Certified Ethical Hacker 

Certification in IT security issued by The International 

Council of Electronic Commerce Consultants (EC-Council) 

(Security) 

CEI: Conducted Electromagnetic Interference 

CEI: Connection Endpoint Identifier 

CELP: Card Edge Low Profile 

(Intel) 

CELP: Code Excited Linear Prediction 

CEMA: Consumer Electroinics Manufacturers 

Association 


CEMF: Cisco Element Management Framework 

Collects fault information from various sources.Network 

elements, such as routers or switches, may report fault 

conditions as SNMP traps, Syslog messages, and so on 

(Software) (Cisco) 

CEMM: Consumer Electronics Manufacturers 

Association 

(Operating systems) (Compaq) 

CEMS: Constituent Electronic Mail System 

CENELEC: Comité Européen de Normalisation 

ELECtrotechnique 

CENTR: Council of European National Top 

level domain Registries 


CEO: Chief Executive Officer 

CEOP: Conditional End Of Page 

CEPT: Conference of European Postal and 

Telecommunications 


CER: Canonical Encoding Rules 

CER: Cell Error Ratio 

In an ATM network, ratio of errored cells to transmitted 

cells. Measures the accuracy of cell transmission 

(Network) 

CER: Corporate Error Reporting 

Tool that allows IT Administrators to manage error reports 

and error messages created by the Windows Error 

Reporting client (WER) in Windows XP and Windows Server 

2003 and error-reporting clients included in other 

Microsoft programs (Software) (Microsoft) 

CERFNET: California Educational and 

Research Federation NETwork 

CERN: Centre Européen pour la Recherche 

Nucléaire 

CERT: Computer Emergency Response Team 


CERT/CC: Computer Emergency Response 

Team Coordination Center 


CES: Circuit Emulation Service 

CES: Consumer Electronic Show 

CET: Central European Time 


CF: ColdFusion 

(Software) 

CF: Compact Flash 

Add-in expansion cards (Hardware) 

CF: Coupling Facility 

(Databases) 


C

CFA 

CFA: Color Filter Array 

In digital imaging, CFAs assign a separate primary color to 

each pixel by placing a filter of that color over the pixel. . 

As photons pass through the filter to reach the pixel, only 

wavelengths of that primary color will pass through 

(Hardware) 

CFB: Call Forward Busy 

CFB: Cipher FeedBack 

CFB: Configurable Function Block 

CFC: ColdFusion Component 

(Software) 

CFCC: Coupling Facility Control Code 

(Databases) 

CFD: Call For Discussion 

CFD: Computational Fluid Dynamics 

CFDJ: ColdFusion Developer's Journal 

CFDP: Coherent File Distribution Protocol 

(Network) 

CFF: Compact Font Format 

(Adobe) 

CFG: ConFiGuration 


CFM: Code Fragment Manager 

(Apple) 

CFM: ConFiguration Management 

CFM: Cubic Feet Per Minute 

CFML: ColdFusion Markup Language 

(Allaire) 

CFMN: Client For Microsoft Networks 

32-bit, protected-mode network client for Windows 9x that 

provides the redirector and other software components for 

Microsoft networking (Network) (Microsoft) 

CFO: Chief Financial Officer 

CFO: Compaq Factory Outlet 

(Compaq) 

CFP: Call For Papers 

CFQ: Class-based Fair Queuing 

(Network) 

CFR: Computerized Facial Recognition 

CFRM: Coupling Facility Resource 

Management 

(Databases) 

CFS: Caching File System 

CFS: Common File System 

CFV: Call For Votes 

CG: Computer Generated 

CG: Computer Graphics 

CG: Control Gate 

CGA: Color Graphics Adapter 

Video specification for a resolution of 320x200 pixels in 

16 colors (Hardware) 

CGE: Common Graphics Environment 

CGI: Common Gateway Interface 

A common method for transferring information between a 

web server and a back-end application (Network) 

CGI: Computer Generated Images 

CGI: Computer Graphics Interface 


CGM: Computer Graphics Metafile 


CGMP: Cisco Group Multicast Protocol 

A form of Internet Group Multicast Protocol (IGMP) 

snooping that lets the switch send multicasts only to the 

ports on a VLAN that are participating in the multicast 

(Network) (Cisco) 

CIC 

CGMS: Copy Generation Management System 

CGS: Continuous-Grain Silicon 

(Hardware) 

CHAP: Challenge Handshake Authentication 

Protocol 

A security tool offered in point-to-point protocol (PPP) 

based on encrypted password exchange. (Network) 

CHAR: Character 

CHAT: Conversational Hypertext Access 

Technology 

CHCK: CHannel ChecK 

CHCP: CHange Code Page 

CHDIR: CHange DIRectory 

CHFI: Computer Hacking Forensic 

Investigator 

Certification in IT security issued by The International 

Council of Electronic Commerce Consultants (EC-Council) 

(Security) 

CHFN: CHange FiNger 

CHGRP: CHange GRouP 

CHILL: Ccitt HIgh Level Language 

CHIPS: Clearinghouse Interbank Payments 

System 

CHKDSK: CHecK DiSK 

CHMOD: CHange MODe 

CHOWN: CHange OWNer 

CHP: CHaPter 

CHR: CHaRacter 

CHRP: Common Hardware Reference Platform 

CHS: Cylinder, Head, Sector 

CHTML: Compressed HyperText Markup 

Language 

CI: Coded Information 

CI: Competitive Intelligence 

CI: Component Interface 

CI: Congestion Indication 

CI: Content Inspection 

CI/O: Comprehensive Input/ Output 

Refers to Adaptec's RAID management software. 


CIA: Current Instruction Address 

CIAC: Computer Incident Advisory Capability 


CIB: Computer Integrated Business 

CIC: Carrier Identification Code 

CIC: Cisco Info Center 

A service-level monitoring and diagnostics tool that 

provides network fault and performance monitoring, trouble 

isolation, and real-time service-level management for large 

networks (Software) (Cisco) 

CIC: Coordination and Information Center 


C

CICA 

CICA: Center of Innovative Computer 

Applications 

CICS: Customer Information Control System 

(IBM) 

CICS/VS: Customer Information Control 

System / Virtual Storage 

CID: Charge-Injection Device 

CID: Configuration, Installation, Distribution 

CIDL: Component Implementation Definition 

Language 

The semantics of the CORBA Components Model (CCM) 

CIDMID: Content-ID and Message-ID 

(Network) 

CIDR: Classless Inter-Domain Routing 

Solution that allows more scalability in the Internet under 

the current IP version 4 addressing scheme. It provides an 

interim solution until IP version 6 is put into place 

(Network) 

CIE: Commission Internationale de l'Eclairage 

A standard means for specifying the color of an object or 

light source in terms of (x,y) coordinates. 

CIF: Common Interchange Format 

CIF: Common source Intermediate Format 

A video format in which frames are 360 pixels wide and 

288 pixels high (one half of the CCIR 601 frame size). 

Each pixel has its own luminance value. 

CIF: Component Implementation Framework 

Defines the programming model for constructing 

component implementations 

CIF: Crystallographic Information File 


CIF: Customer Information File 

CIFF: Camera Image FIle Format 

CIFS: Common Internet File System 


CIL: Common Intermediate Language 

CIL: Computer Integration Laboratories 

CIM: Common Information Model 

CIM: Compuserve Information Manager 

CIM: Computer Integrated Manufacturing 

CIM: Cox Interactive Media 

CIM: Customer Information Management 

CIO: Chief Information Officer 

CIOCS: Communication Input/Output Control 

System 

CIP: Command Interface Port 

CIP: Commerce Interchange Pipeline 

(Microsoft) 

CIP: Common Indexing Protocol 

CIP: Computer Integrated Processing 

CIPM: Commerce Interchange Pipeline 

Manager 


CIPS: Canadian Information Processing 

Society 

Accredits academic programs in technology, certifies 

practitioners, and has a code of conduct for professional 

behavior. See also http://www.cips.ca/ (Organizations) 


CIPSO: Commercial Internet Protocol 

Security Option 

(Security) 

CIR: Committed Information Rate 

A minimum access rate the service provider commits to 

providing the customer (Communication) 

CIR: Consumer InfraRed 

(Hardware) 

CIRC: Cross-Interleaved Reed-solomon Code 

CIS: Card Information Structure 

CIS: Client Information System 

CIS: Com+ Internet Service 


CIS: Component Interaction Service 

(Databases) 

CIS: Compressed Image Sequence 

The XIL library's compressors store (generally related) 

compressed video frames in structures called CIS buffers. 

The images may represent frames in a movie, pages in a 

document, and so on. 

CIS: Compuserve Information Service 

(CompuServe) 

CIS: Computer Information Systems 

CIS: Contact Image Sensor 

Scanner device (Hardware) 

CIS: Customer Information System 

CIS: Customer Interaction Software 

CISA: Certified Information System Auditor 

CISC: Complex Instruction Set Computer 

CPU architecture (Hardware) 

CISSP: Certified Information Systems 

Security Professional 

CIT: Computer-Integrated Telephony 

CIT: Court of International Trade 


CITO: Communications and Information 

Technology Ontario 


CIVIC: Cyclone Integrated Video Interfaces 

Controller 

CIVR: Computer and Interactive Voice 

Response 

CIW: Certified Internet Webmaster 

CIW: Client Installation Wizard 


CIX: Commercial Internet eXchange 

CIX: Compulink Information eXchange 

CJK: Chinese, Japanese and Korean 

(Software) 

CJLI: Command Job Language Interpreter 

CKD: Count Key Data 

CKE: Commercial Key Escrow 

(Software) 

CKM: Customer Knowledge Management 

CKO: Chief Knowledge Officer 

CL: Cas Latency 

Number of clock cycles it takes before data starts to flow 

once a command is received. Low CAS latency is faster 

than high CAS latency (Hardware) 

CL 


C

CL 

CL: Common Lisp 


CL: ConnectionLess 


CLAR: Channel Local Address Register 

CLASS: Centralized Local Area Selective 

Signaling 

CLASS: CLient Access to Systems and 

Services 

CLASS: Cooperative Library Agency for 

Systems and Services 

CLASS: Custom Local Area Signaling Services 

CLC: Certified Local Carrier 


CLC: CLear Carry flag 

CLC: Color Laser Copier 


C-LCD: Cholesteric Liquid Cristal Display 

(Hardware) 

CLD: Clear Direction Flag 

CLDC: Connected Limited Device 

Configuration 

Is the foundation of the Java runtime environment that 

targets small, resource-constrained devices, such as 

mobile phones, mainstream personal digital assistants, 

and small retail payment terminals (Sun) 

CLEC: Competitive Local Exchange Carrier 

A telephone company that competes with other local phone 

companies within an exchange, or calling area, to provide 

local telephone service (Communication) 

CLEI: Common Language Equipment 

Identification 

CLF: Common Log File 

(Network) 

CLGA: Ceramic Land Grid Array 

(Hardware) 

CLI: Call Level Interface 

CLI: Calling Line Identification 


CLI: Clear Interrupt Flag 

CLI: Client Library Interface 

CLI: Command Line Interface 

CLI: Command Line Interpreter 

CLI: Common Language Interface 

CLIB: C LIBrary 

CLID: Calling Line IDentification 


CLIE: Communication, Link, Information and 

Entertainment 

(Hardware) (Sony) 

CLIM: Common Lisp Interface Manager 

CLIPS: C Language Integrated Production 

System 

Productive development and delivery expert system tool 

which provides a complete environment for the 

construction of rule and/or object based expert systems 

(Software) 

CLIST: Command LIST 

CLK: CLocK 

(Hardware) 


CLL: ConnectionLess Layer 

CLLI: Common Language Location 



CLNAP: ConnectionLess Network Access 

Protocol 

CLNP: ConnectionLess Network Protocol 


systems interconnection (OSI) protocol for providing the 

OSI Connectionless Network Service (datagram service). 

CLNP is the OSI equivalent to Internet IP, and is 

sometimes called ISO IP. 

CLNS: ConnectionLess Network Service 

CLO: Chief Learning Officer 

CLOB: Character Large OBject 

(Databases) 

CLOS: Common Lisp Object System 

(Software) 

CM 

CLP: Cell Loss Priority 

In ATM cells, a bit that specifies whether a cell can be 

discarded, if necessary; for example, if network congestion 

or policing occurs (Communication) 

CLP: CLiPboard 


CLP: Command Line Processor 

CLP: Constraint Logic Programming 

CLR: Cell Loss Ratio 

In an ATM network, the ratio of lost ATM Cells to 

transmitted cells; measures the percentage of cells lost 

between two points in the network. Cell loss is typically 

caused by severe network congestion; it can also result 

from bit errors in the cell header (Network) 

CLR: Common Language Runtime 


CLR: Compensating Log Record 

CLS: CLear Screen 

CLS: Closed Loop Solution 

CLS: Common Language Specification 

(Software) 

CLSID: CLaSs IDentifier 

(Software) 

CLT: Cairo Local Time 


CLTP: ConnectionLess Transport Protocol 

Provides for end-to-end Transport data addressing (via 

Transport selector) and error control (via checksum), but 

cannot guarantee delivery or provide flow control. 

CLTS: Clear Task Switch Flag 

CLTV: Constant Linear Time Velocity 

CLUI: Command Line User Interface 

CLUT: Color LookUp Table 

The color options in a graphics system, arranged by index 

number. Typically, the system has a default color map. The 

index of colors in the color map can be reallocated, 

however, depending on the application. 

CLV: Constant Linear Velocity 

(Hardware) 

CM: Communication Manager 


CM: Configuration Managment 

(Software) 


C

CM 

CM: Content Management 

CM: Control Mark 

CM: Corrective Maintenance 

CM2: Communication Manager/2 

CMA: Concert Multi-thread Architecture 

CMAK: Connection Manager Administration Kit 

(Microsoft) 

CMC: Calypso Message Center 

CMC: Common Mail Calls 

CMC: Common Messaging Call 

CMC: Communication Management 

Configuration 

CMC: Complement Carry Flag 

CMC: Computer-Mediated Communication 

CMD: Circuit Mode Data 

CMD: CoMmanD 


CMF: Creative Music Format 

CMGM: Cisco Media Gateway Manager 


CMI: Control and Management Interface 


CMIP: Common Management Information 

Protocol 


systems interconnection (OSI) network management 

protocol. (Communication) 

CMIS: Common Management Information 

System 

CMISE: Common Management Information 

Service Element 

CML: Chemical Markup Language 

CML: Computer Managed Learning 

CML: Conceptual Modelling Language 

CML: Current Mode Logic 

CMM: Capability Maturity Model 

Strategy for improving the software process, irrespective of 

the actual life-cycle model used (Software) 

CMM: Conceptual Modeling Language 

CMMF: Certificate Management Message 

Format 

A PKIX format used to convey certificate requests and 

revocation requests from end entities to certificate 

authorities and to send a variety of information from 

certificate authorities to end entities 

CMMS: Computerized Maintenance 

Management Software 

CMOL: CMip Over Llc 

CMOS: Coats-Mellon Operational Specification 

CMOS: Complementary Metal Oxide 

Semiconductor 

Semiconductor manufacturing technology (Hardware) 

CMOS: Configuration Memory Operating 

System 

CMOT: CMip Over Tcp 

An effort to use the International Organization for 

Standardization's open systems interconnection (OSI) 

network management protocol to manage TCP/IP 

networks. (Network) 


CMOV: Conditional MOVe 

CMP: Cellular MultiProcessing 

Computer architecture (Hardware) 

CMP: Certificate Management Protocol 

CMP: Chip MultiProcessor 

(Hardware) 

CMP: CoMPare 

CMP: Container-Managed Persistence 

(Software) 

CMP: Cooperative Marketing Partner 

CMPS: CoMPare word String 

CNF 

CMR: Cell Mis-insertion Rate 

In an ATM network, the total number of misinserted cells 

observed during a specified time interval divided by the 

time interval duration (Network) 

CMR: Common Mode Rejection 

CMRR: Common Mode Rejection Ratio 

CMS: Call Management Server 

CMS: Code Management System 

CMS: Color Matching System 

CMS: Compiler Monitor System 

CMS: Content Management System 

(Software) 

CMS: Conversational Monitor System 

CMS: Cryptographic Message Syntax 

CMT: Connection ManagemenT 

CMTL: Computer Memory Test Labs 


CMTS: Cable Modem Termination System 

(Network) 

CMU: Carnegie Mellon University 


CMVC: Configuration Management Version 

Control 

(IBM) 

CMW: Compartmented Mode Workstation 

CMY: Cyan, Magenta, Yellow 

The CMY color model subtracts percentages of cyan, 

magenta, and yellow to yield the desired colors. 

Subtracting 0 percent of all three colors results in white; 

subtracting 100 percent of all three colors results in black. 

(Hardware) 

CMYK: Cyan, Magenta, Yellow, blacK 

Color encoding scheme. The black provides deeper colors, 

expecially full black, compared with the CMY color model. 

CNA: Certified Novell Administrator 

(Novell) 

CNA: Communications Network Application 

CNAPS: Co-processing Node Architecture for 

Parallel Systems 

CNB: Connected Network Backup 

On-line storage service 

CNC: Computerized Numerical Control 

CND: Caller Number Delivery 

CNE: Certified Novell Engineer 

(Novell) 

CNF: CoNFiguration 



C

CNG 

CNG: CalliNG 

CNI: Certified Novell Instructor 

(Novell) 

CNI: Common Network Interface 

CNIDIR: Coalition for Networked Information 

DIRectories 

CNIDR: Clearinghouse for Network 

Information and Discovery and Retrieval 

CNM: Communications Network Management 

CNM: Customer Network Management 

CNMA: Communications Network for 

Manufacturing Applications 

CNMS: Compaq Netelligent Management 

Software 

(Compaq) 

CNMS: Cylink Network Management System 

CNN: Composite Network Node 

CNR: Carrier to Noise Ratio 

CNR: Communication and Networking Riser 

(Hardware) 

CNR: Communication Network Riser 

(Hardware) 

CNS: Complimentary Network Service 

CNSS: Core Nodal Switching Subsystem 

CNT: CoNTents 


CNTFET: Carbon NanoTube Field-Effect 

Transistor 

(Hardware) 

CNV: CoNVentional 

CNVT: CoNVerT 

CNX: Certified Network eXpert 

CO: Central Office 

CO: Command Output 

CO: Connection Oriented 


CO: Convert Out 

CoA: Care Of Address 

Temporary IP Address used by a mobile user when 

roaming onto a foreign IP network. It is used within mobile 

IP and can either be leased from the HA (Home Agent) or 

FA (Foreign Agent) (Network) 

COAST: Cache On A STick 

(Hardware) 

COAST: Computer Operations, Audit, and 

Security Technology 

Laboratory in computer security research in the Computer 

Sciences Department at Purdue University 

COB: Chip-On-Board 

COB: Connected Online Backup 

(Software) 

COBOL: COmmon Business-Oriented Language 


COCOMO: COnstructive COst MOdel 

A technique for estimating the effort and duration of a 

software project based on its estimated size created by 

Barry Boehm (Software) 

COCOT: Customer Owned Coin Operated 

Telephone 


COD: Cash On Delivery 

CODASYL: Conference On DAta SYstem 

Languages 


CODCF: Central Office Data Connecting 

Facility 

COMPAQ 

CODE: Campaign for an Open Digital 

Environment 

International coalition of civil liberties groups and 

consumer rights initiatives to protect the public's rights, 

innovation, and competition against the proposed European 

Union Directive on the Enforcement of Intellectual Property 

CODE: Client/server Open Development 

Environment 

CODEC: COder/DECoder 

CoE: Center Of Excellence 

Group of subject matter experts (Organizations) 

COE: Central Office Equipment 

COE: Common Operating Environment 

COE: Consistent Office Environment 

COEES: Central Office Equipment Engineering 

System 

COEM: Commercial Original Equipment 

Manufacturer 

COFA: Change Of Frame Alignment 


COFDM: Coded Orthogonal Frequency 

Division Multiplexing 


COFF: Common Object File Format 

COG: Chip On Glass 

(Hardware) 

COG: Component Obsolescence Group 

Advisory group connected with the maintence of older 

elctronic hardware including computer systems for 

specialist functions. See also http://www.cog.org.uk/ 


COGO: COordinate GeOmetry 

Programming Language 

COL: COLlision 

COL: Computer Oriented Language 

COLD: Computer Output to Laser Disc 

COLT: Connection Optimized Link Technology 


COLUG: Central Ohio Linux Users Group 

See www.colug.net (Organizations) 

COM: COMmand 


COM: COMmunication port 

Serial port (Communication) 

COM: Component Object Model 

COM: Computer Output Microfilm 

COMDEX: COMputer Dealers EXposition 

COMET: COrnell Macintosh Terminal Emulator 

(Software) 

COMP: Compare 

COMPAQ: COMPatibilty And Quality 

Used to refer to the fact that their computers were both 

IBM PC compatible and very reliable 


C

COMSAT 

COMSAT: COMmunications SATellite 

corporation 

COMTI: Component Object Model Transaction 

Integrator 

(Microsoft) 

CON: Console 

Usually include keyboard and screen 

CONCERT: COmmunications for North Carolina 

Education, Research and Technology 

CONS: Connection-Oriented Network Service 

CONTAC: Central Office NeTwork ACcess 

COO: Chief Operating Officer 

COO: Cost Of Ownership 

COOL: Cobol Object Orientated Language 

COP: Character-Oriented Protocol 

COPA: Children Online Protection Act 

COPICS: Communications Oriented 

Production Information and Control System 

(IBM) 

COPPA: Child Online Privacy Protection Act 

COPS: Common Open Policy Service 

An IETF proposed standard defining a simple protocol for 

provisioning QoS by outsourcing policy-based admission 

control over requests for network resources (Network) 

COR: Common Object Runtime 


CORBA: Common Object Request Broker 

Architecture 

COREN: COrporation for Research and 

Enterprise Network 

COS: Camera Operating System 


COS: Card Operating System 


CoS: Class Of Service 

A category based on type of user, type of application, or 

some other criteria that QoS systems can use to provide 

differentiated classes of service (Network) 

COS: Common Object Service 

COS: Compatible Operating System 

COS: Corporation for Open Systems 

A vendor and user group for conformance testing, 

certification, and promotion of International Organization 

for Standardization's open systems interconnection (OSI) 

products. 

COSE: Combined Office Standard Environment 

COSE: Common Open Software Environment 

COSIC: COmputer Security and Industrial 

Cryptography 


COSINE: Cooperation for Open Systems 

Interconnection Networking in Europe 

A program sponsored by the European Commission, aimed 

at using open systems interconnection (OSI) to tie 

together European research networks. 

COSMIC: COmputer Software Management 

and Information Center 

(NASA) 

COSMOS: COmputer System for Mainframe 

OperationS 

COSS: Common Object Services Specification 


COT: Central Office Terminal 

COTS: Commercial Off-The-Shelf 

(Software) 

CPI-C 

COTS: Connection-Oriented Transport Service 

COW: Cluster Of Workstations 

(Hardware) 

COW: Computer On Wheels 

CP: Connection Processor 

(Hardware) 

CP: Control Panel 

CP: Control Point 

CP: Copy Protected 

CP: Customer Premises 


CP/M: Control Program for Microprocessors 


CPA: Certified Public Accountant 

CPA: Cost Per Action 

CPA: Crown Print Auditor 

(Hardware) (QMS) 

CPAN: Comprehensive Perl Archive Network 

CPC: Constant Point Calculation 

CPC: Cost Per Click 

CPCS: Check Processing Control System 

(IBM) 

CPCS: Common Part Convergence Sublayer 

CPD: Conseal Provate Desktop 

Personal firewall (Network) 

CPE: Central Processing Element 

CPE: Conseal Private Desktop 

(Hardware) 

CPE: Cover Page Editor 


CPE: Customer Premise Equipment 

CPEX: Customer Profile EXchange 

CPFR: Collaborative Planning, Forecasting 

and Replenishment 

(Software) 

CPG: Clock Pulse Generator 

CPH: Cost Per Hour 

cpi: Characters Per Inch 

CPI: Clock Per Instruction 

CPI: Code Page Information 


CPI: Common Part Indicator 

CPI: Common Programming Interface 

(IBM) 

CPI: Communication Programming Interface 


CPI: Computer Private branch exchange 

Interface 

CPIC: Common Programming Interface for 

Communications 

(IBM) 

CPI-C: Common Programming Interface for 


(IBM) 


C

CPIO 

CPIO: CoPy In/Out 

CPL: Combined Programming Language 

CPL: Common Public License 

CPL: Compressed Printer Language 

(Hardware) 

CPL: Control PaneL 

Control panel extension (Microsoft) 

CPL: Conversational Programming Language 

CPL: Current Privilege Level 

CPLD: Complex Programmable Logic Device 

CPM: Cost Per Minute 

CPM: Critical Path Method 

CPML: Call Policy Markup Language 

(Network) 

CPN: Compuserve Packet Network 

CPO: Chief Privacy Officer 

CPP: C Plus Plus (C++) 

Object-oriented programming language based on C. Also, 

filename extension. (Software) 

CPP: Corporate Preview Program 

(Microsoft) 

CPRM: Content Protection for Recordable 

Media 

CPS: Certification Practice Statement 

(Verisign) 

cps: Characters Per Second 

Printing engine speed 

CPS: Cycles Per Second 

CPSI: Configurable PostScript Interpreter 

CPSR: Computer Professionals for Social 

Responsibility 

CPT: Command Pass Through 

CPTWG: Copyright Protection Technical 

Working Group 


CPU: Central Processing Unit 

The part of the computer in which calculations and 

manipulations take place. (Hardware) 

CPW: Commercial Processing Workload 

(IBM) 

CQA: Certified Quality Analyst 

CR: Candidate Recommendation 

CR: Card Reader 

(Hardware) 

CR: Carriage Return 

Usually used as a control code or a terminator 

CR: Command Register 

(Hardware) 

CR: Content Redirection 

CR/LF: Carriage Return/Line Feed 

CRAM: Card Random Access Memory 

(Hardware) 

CRAM: Challenge-Response Authentication 

Mechanism 


CRAM: Computerized Reliability Analysis 

Method 

(Software) 


CRAM: Cyberspatial Reality Advancement 

Movement 

CRAS: Cable Repair Administrative System 

CRAYON: CReAte Your Own Newspaper 

CRC: Cyclic Redundancy Check 

An error check in which the check key is generated by a 

cyclic algorithm. (Communication) 

CRCG: Center for Research in Computer 

Graphics 

CRD: CaRDfile 


CRT 

CREN: Computer Research Education Network 

CREN: Corporation for Research and 

Education Networking 

CRF: Cable Retransmission Facility 

CRF: Commit-Reconcile and Fences 

Mechanism-oriented memory model (Software) 

CRF: Cross Reference File 

CRFVC: Connection Related Function Virtual 

Channel 

CRFVP: Connection Related Function Virtual 

Path 

CRI: Color Reproduction Indices 

CRI: Cray Research, Inc. 

CRIMM: Continuity Rambus Inline Memory 

Module 

A type of system RAM (Hardware) 

C-RIMM: Continuity - Rambus Inline Memory 

Module 

(Hardware) 

CRIN: Centre de Recherche en Informatique 

de Nancy 

CRISC: Complex-Reduced Instruction Set 


CRISP: Complex-Reduced Instruction Set 

Processor 

CRL: Certificate Revocation List 

(Security) 

CRM: Customer Relationship Management 

CRME: Certified Remote Management 

Engineer 

CRMF: Certificate Request Message Format 

A PKIX format used for messages related to life-cycle 

management of X.509 certificates. This format is a subset 

of CMMF 

CROM: Control Read-Only Memory 

(Hardware) 

CRP: Common Reference Platform 

CRS: Can't Remember Stuff 

(Net lingo) 

CRS: Cell Relay Service 

CRS: Computerized Reservation System 

CRS: Content Replication Service 

(Microsoft) 

CRT: Cathode Ray Tube 

The CRT operates by firing an electron beam that strikes 

the inside of the monitor's display surface, which is coated 

with phosphor. The phosphor glows briefly when excited by 

the beam. (Hardware) 


C

CRTC 

CRTC: Canadian Radio-television and 

Telecomunications Commission 


CRTC: Cathode Ray Tube Controller 

(Hardware) 

CRUD: Create, Retrieve, Update, Delete 

CS: Cable Select 

Allows drives to determaine whether they are master or 

slave according to their position along the bus (Hardware) 

CS: Chip Select 

(Hardware) 

CS: Code Segment 

CPU register (Hardware) (Intel) 

CS: Computer Science 

CS: Counter-Strike 

See http://www.counter-strike.net/ (Games) 

CS/SS: Card Service/Socket Service 

CS1: Capability Set 1 

CSA: Calendaring and Scheduling Api 

(IBM) 

CSA: Communications Streaming Architecture 

Directly connects the Memory Controller Hub to the 

network controller. With CSA-based motherboards, network 

data can be transferred at a much higher rate with lower 

latency (Hardware) (Intel) 

CSAPI: Common Speller Application Program 

Interface 

CSAR: Channel System Address Register 

CSC: Computer Sciences Corporation 

Company Name 

CSCC: Concurrent SuperComputing 

Consortium 

CSCW: Computer Supported Cooperative Work 

CSD: Circuit-Switched Data 

CSD: Computer Services Department 

CSD: Corrective Service Diskette 

(IBM) 

CSDC: Circuit Switched Digital Capability 

CSDS: Circuit Switched Data Service 

CSE: Certified System Engineer 

CSER: Consortium for Software Engineering 

Research 


C-SET: Cholesteric Liquid Crystal Display 

CSFI: Communication Subsystem For 

Interconnection 

CSG: Constructive Solid Geometry 

CSG: Consulting Services Group 

(Lotus) 

CSH: C SHell 

Unix shell 

CSH: Complementary Software House 

CSI: Command Sequence Introducer 

CSI: CompuServe Incorporated 

CSI: Computer Security Institute 


CSID: Calling Subscriber IDentification 


CSIRO: Commonwealth Scientific and 

Industrial Research Organization 

CSPDN 

CSIRT: Computer Security Incident Response 

Team 

(Security) 

CSIv2: Common Secure Interoperability 

Version 2 

Addresses the requirements of CORBA security for 

interoperable authentication, delegation, and privileges 

CSL: Computer Sensitive Language 

CSLIP: Compressed Serial Line Interface 

Protocol 

CSM: Code Set Map 

CSM: Communications Services Manager 

CSM: Control Strip Module 

CSMA: Carrier Sense Multiple Access 


CSMA/CA: Carrier Sense Multiple 

Access/Collision Avoidance 


CSMA/CD: Carrier Sense Multiple 

Access/Collision Detect 

The access method used by local area networking 

technologies such as Ethernet. (Network) 

CSMS: Customer Support Management System 

CSN: Card-Select Number 

CSN: Compaq Service Network 

(Compaq) 

CSNET: Computer Science NETwork 

Computer+Science Network. A large computer network, 

mostly in the U.S. but with international connections. 

CSNET sites include universities, research labs, and some 

commercial companies. Now merged with BITNET to form 

CREN. 

CSNW: Client Services for NetWare 


CSO: Central Services Organization 

CSO: Cold Start Only 

In ISDN is a capability of a Network Terminator 1 (NT1) 

(Network) 

CSP: Certified Systems Professional 

CSP: Chip-Scale Packaging 

CSP: Commercial Service Provider 

CSP: Commercial Subroutine Package 

CSP: Communicating Sequential Processes 

CSP: Component Service Provider 

CSP: Compucom Speed Protocol 

CSP: Converged Service Provider 

CSP: Cross System Product 

(IBM) 

CSP: Cryptographic Service Provider 

CSP: Crystal Server Pages 

A page that contains HTML/VB/JavaScript that is 

processed by the Web Component Server in the Crystal 

Enterprise eBusiness Framework (Software) 

CSPDK: Cryptographic Service Provider 

Developer's Kit 


CSPDN: Circuit Switched Public Data Network 


C

CSPDU 

CSPDU: Convergence Sublayer Protocol Data 

Unit 

CSPM: Cisco Secure Policy Manager 

(Cisco) 

CSR: Certificate Signing Request 

CSRAM: Custom Static Random Access 

Memory 

(Hardware) 

CSRG: Computer Systems Research Group 


CSS: Cascading Style Sheets 

CSS: Central Structure Store 

The CSS is an editable hierarchy of structures composed 

of elements, attributes, and transformations. CSS elements 

are drawing primitives such as lines and polygons and CSS 

attributes are qualities such as color and style. 

CSS: Computer Sub System 

CSS: Computer Systems Specialist 

CSS: Contact Start-Stop 

CSS: Content Scrambling System 

Copy protection scheme used for example with DVDs 

(Digital Video Discs) 

CSS: Content Services Switch 

(Hardware) (Cisco) 

CSS: Continuous System Simulator 

CSS: Cross-Site Scripting 

(Software) 

CSS: Customizable Starter Site 

(Microsoft) 

CSS: Cybermedia Support Server 

CSS2: Cascading Style Sheet 2 

CSSM: Client-Server Systems Management 

(IBM) 

CST: Central Standard Time 


CST: Consolidated Service Test 

Enhances the way IBM tests and recommends 

maintenance packages for z/OS and OS/390 software, 

including the major subsystems (IBM) 

CSTA: Computer-Supported Telephony 

Applications 

CSTB: Computer Science and 

Telecommunications Board 


CSTE: Certified Software Test Engineer 

(Software) 

CSTN: Color SuperTwist Nematic 


CSTS: Computer Supported 

Telecommunications Standard 

CSU: Channel Service Unit 

CSUNET: California State University NETwork 

CSV: Circuit-Switched Voice 

CSV: Comma-Separated Value 

CSV: Common Services Verbs 

(Microsoft) 

CSV: Computer System Validation 

Process used mainly at pharmaceutical companies to 

ensure that systems are reliable and predictable 


CSW: Channel Status Word 


CT: Computer Telephony 

(Hardware) 

CTRCO 

CTAN: Comprehensive Tex Archive Network 

CTB: Cipher Type Byte 

CTB: Communication ToolBox 

CTBS: Computer Telephony Business Solution 


CTC: Care To Chat 

(Net lingo) 

CTC: Certified Testing Center 

CTC: Channel To Channel 

CTC: Counter/Timer Chip 

(Hardware) 

CTCA: Channel To Channel Adapter 

CTCP: Client-To-Client Protocol 

CTD: Cell Transfer Delay 

In an ATM network, measures the peak and mean delay 

that cells experience while traveling from one point in the 

network to another (Network) 

CTE: Charge Transfer Efficiency 

(Hardware) 

CTE: Customer Termination Equipment 

(Network) 

CTEC: Certified Training and Education Centre 

CTERM: Command TERMinal 

CTF: Capture, Transform, and Flow 


CTFT: Color Thin Film Transistor 

LCD manufacturing technology (Hardware) 

CTI: Computer Telephony Integration 

(Microsoft) 

CTL: Certificate Trust List 

CTL: Complex Text Layout 

CTM: Component Transaction Monitor 

(Software) 

CTN: Can't Talk Now 

(Net lingo) 

CTO: Chief Technical Officer 

CTOS: Cassette Tape Operating System 

CTOS: Computerized Tomography Operating 

System 

CTOS: Convergent Technologies Operating 

System 

CTP: Capable To Promise 

CTP: Community Technology Preview 

CTP: Convergence Technologies Professional 

Vendor-neutral certification for IT professionals who have 

the core knowledge and skills required by equipment 

manufacturers, their channel partners, and end-users to 

sell and service convergence technologies 

CTPA: Coax-to-Twisted-Pair Adapter 

CTR: Common Technical Regulations 

CTRCO: Calculating, Tabulating, Recording 

COmpany 

The name of this company was changed to "International 

Business Machines" by Thomas J. Watson, Sr. 


C

CTRL 

CTRL: ConTRoL 

CTS: Carpal Tunnel Syndrome 

CTS: Clear To Send 

RS-232 signal (Communication) 

CTS: Common Type System 

CTS: Compatibility Test Suite 

(Software) 

CTS: Component Transaction Server 

CTS: Computer Telephony Solution 

CTS: Customer Telephone System 

CTSS: Compatible Time Sharing System 

CTSS: Cray Time Sharing System 

CTT: Care To Text 

(Net lingo) 

CTT: Cartridge Tape Transport 

CTTC: Cartridge Tape Transport Controller 

CTW: Catch The Werb 

Web organizer (Software) 

CTY: Catch The Web 

CU: Control Unit 

(Hardware) 

CUA: Calendar User Agent 

(Software) 

CUA: Common Used Acronym 

CUA: Common User Access 

CUA: Common User Application 

CUB: CUrsor Backward 

CUD: CUrsor Down 

CUE: Custom Updates and Extras 

CUF: CUrsor Forward 

CUG: Closed User Group 

(Network) 

CUI: Character-oriented User Interface 

CUI: Common User Interface 

(IBM) 

CUL: See You Later 

Will get in touch later on (Net lingo) 

CUP: CUrsor Position 

CUPID: Completely Universal Processor I/o 

Design 

(AST) 

CUR: CURsor 


CUSI: Configurable Unified Search Interface 

CUSIP: Committee for Uniform Security 

Identification Procedures 

CUSP: Commonly Used System Program 

CUT: Control Unit Terminal 

CUTE: Clarkston University Terminal Emulator 

CUTS: Cassette User Tape System 

(Hardware) 

CUU: CUrsor Up 

CV: CodeView 

Microsoft's format for debug indormation, embedded in the 

object file or executable (Software) (Microsoft) 

CV: Curriculum Vitæ 


D&D 

CVE: Common Vulnerabilities and Exposures 

(Security) 

CVF: Compressed Volume File 

CVGA: Color Video Graphics Array 

CVIA: Computer Virus Industry Association 

CVM: C Virtual Machine 

Is a Java 2 virtual machine designed for devices needing 

the functionality of the Java 2 virtual machine feature set, 

but with a smaller footprint (Sun) 

CVP: Content Vectoring Protocol 

CVS: Computer Vision Syndrome 

CVS: Concurrent Version System 

Tool for keeping programs sources under control (Software) 

CVT: ConVerT 

CVW: CodeView for Windows 

CW: Control Word 

CWA: Competitive Web Analysis 

CWD: Change Working Directory 

CWD: Convert Word to Double word 

CWIS: Campus Wide Information System 

CWIS: Community Wide Information System 

CWM: Common Warehouse Metamodel 

Standard interfaces that can be used to enable easy 

interchange of warehouse and business intelligence 

metadata between warehouse tools, warehouse platforms 

and warehouse metadata repositories in distributed 

heterogeneous environments 

CWNA: Certified Wireless Network 

Administrator 

Entry-level certification is for those IT professionals who 

are new to wireless networking but who want to come up to 

speed quickly. 

CWNP: Certified Wireless Network 

Professional 

CWO: Chief Web Officer 

CWSP: Certified Wireless Security 

Professional 

Mid-level certification is for IT professionals who 

understand how to secure a wireless LAN from hackers and 

who know how to protect the valuable information 

CXI: Common X-windows Interface 

cXML: Commerce eXtensible Markup 

Language 

Standard for setting up interactive online catalogs for 

different buyers, where the pricing and product offerings are 

company specific. Includes mechanisms to handle 

purchase orders, change orders, status updates, and 

shipping notifications 

CYA: Cover Your A** 

(Net lingo) 

CYA: See YA 

(Net lingo) 

CYL: CYLinder 

CYMK: Cyan-Yellow-Magenta-Black 

Color model 

D&D: Drag & Drop 

(Software) 

D 


C 

D

D&I 

D&I: Drop And Insert 

Refers to the cross connecting of Time-Division 

Multiplexing (TDM) circuits. It allows you to take 64Kb 

DS0 channels from one T1 and digitally cross connect 

them to 64Kb DS0 channels on another T1 


D&M: Design & Modeling 

D/A: Digital/Analog 

(Hardware) 

D/L: DownLoad 

D/R: Direct/Reverse 

D/S: Dhrystone per Second 

D2C: Decimal To Character 

(IBM) 

D2D: Developer To Developer 

D2T2: Dye Diffusion Thermal Transfer 

Printing technology 

D2X: Decimal To heXadecimal 

(IBM) 

D3D: Direct 3D 

(Microsoft) 

DA: Data Administrator 

DA: Desk Accessory 


DA: Destination Address 

DA: Differential Analyzer 

A computer that uses interconnected integrators to solve 

differential equations. 

DA: Directory Agent 


DAA: Data Access Arrangement 

DAA: Decimal Adjust for Addition 

DAA: Digest Access Authentication 

DAB: Digital Audio Broadcasting 


DAC: Data Acquisition and Control 

DAC: Device Access Code 

DAC: Digital to Analog Converter 

An electronic device used to convert discrete digital 

numbers to continuous analog signals. In contrast with 

Analog-to-Digital Converter (ADC). (Hardware) 

DAC: Discretionary Access Control 

DAC: Dual Attachment Concentrator 

DACL: Discretionary Access Control List 

A list used by the operating system's directory to control 

access to its objects. A DACL consists of a list of security 

identifiers (which identify users) and specific permissions 

for each (Operating systems) (Microsoft) 

DACS: Digital Access Control System 

DAD: Desktop Application Director 

(Borland) 

DAE: Digital Audio Extraction 

daemon: Disk And Execution MONitor 


DAF: Dynamic Authentication Filter 

DAFS: Direct Access File System 


DAI: Distributed Artificial Intelligence 

DAL: Data Abstraction Layer 


DAL: Data Access Language 

DAL: Data Access Layer 

DAL: Disk Access Lockout 

DAM: Data Acquisition and Monitoring 

DAM: Deferred Action Message 


DAM: Digital Asset Management 

DAM: Direct Access Mode 

DAM: Distributed Abstract Machine 

DAM: Distributed Associative Memory 

(Hardware) 

DAML: Darpa Agent Markup Language 

Language, developed as an extension to XML and the 

Resource Description Framework (RDF), designed to 

facilitate the concept of the Semantic Web. See also 

http://www.daml.org/ 

DAML: Digital Added Main Line 


DAMPS: Digital Advanced Mobile Phone 

System 

DAMQAM: Dynamically Adaptive Multicarrier 

Quadrature Amplitude Modulation 

DAN: Disk Area Network 

DAO: Data Access Object 


DAO: Disk-At-Once 

CD recording methodology (Hardware) 

DAP: Data Access Page 


DAP: Developer Assistance Program 

DAP: Directory Access Protocol 

(Network) 

DAP: Dynamic Application Partitioning 

DAS 

DAPIE: Developers Application Programming 

Interface Extensions 

DAQ: Data AcQuisition 

(Hardware) 

DARI: Database Application Remote Interface 

(IBM) 

DARMS: Digital Alternate Realization of 

Musical Symbols 

DARPA: Defense Advanced Research Projects 

Agency 

The U.S. government agency that funded the ARPANET. 


DART: Digital Audio Reconstruction 

Technology 

DART: Dynamic Advertising Reporting and 

Targeting 

DAS: Data Acquisition System 

(Hardware) 

DAS: Data Agent Server 

DAS: Decimal Adjust for Subtraction 

DAS: Direct Attached Storage 

Storage device that connects directly to a single server 

DAS: Directory Assistance Service 

DAS: Dual-Attached Station 

DAS: Dynamic Allocation Scheme 


D

DASD 

DASD: Direct Access Storage Device 

DASL: DAv Searching & Locating 

Application of HTTP/1.1 forming a lightweight search 

protocol to transport queries and result sets and allows 

clients to make use of server-side search facilities 

DASP: Drive Active, Slave Present 

DASP: Dynamic Adaptive Speculative 

Preprocessor 

(Hardware) 

DASS: Distributed Authentication Security 

Service 

DAT: DATa 


DAT: Digital Audio Tape 

(Hardware) 

DAT: Disk Array Technology 

DATEX: DATa EXchange 

DAV: Data AVailable 

(Hardware) 

DAV: Digital Audio-Video 

DAV: Distributed Authoring and Versioning 

Extension of the HTTP/1.1 protocol 

DAVIC: Digital Audio/VIdeo Council 


DAVID: Digital Audio Video Interactive 

Decoder 

DAW: Digital Audio Workstation 

A computer whose function is devoted primarily to digital 

audio recording and production (Hardware) 

DAX: Developer Api eXtension 

DB: Data Buffer 

DB: DataBase 

(Databases) 

DB: DataBus 

Computer port (Hardware) 

dB: DeciBel 

Intensity measurement unit, used mainly in the sound field 

DB: Device Bay 

DB2: DataBase 2 


DBA: DataBase Administrator 

(Databases) 

DBA: Date Book Archive 


dBA: DeciBel Adjusted 

DBAC: DataBase Administration Center 

DBAS: DataBase Administration System 

DBB: Dynamic Bass Boost 

DbC: Design By Contract 

(Software) 

DBC: Device Bay Controller 

DBCC: DataBase Consistency Checks 

(Databases) 

DBCLOB: Double-Byte Character Large OBject 

(Databases) 

DBCP: DataBase Connection Pool 

(Software) 

DBCS: Delivery Bar Code Sorter 


DBCS: Double-Byte Character Set 

DBD: DataBase Driver 

(Databases) 

DBF: DataBase File 


DBF: DataBase Format 

(Databases) 

DBI: DataBase Interface 

(Databases) 

DBIF: DataBase InterFace 

(Databases) 

DBIS: Dun & Bradstreet Information Services 

DBK: DocBooK 


DBLIB: DataBase LIBrary 


DBM: DataBase Manager 

(Databases) 

DBME: DataBase Managment Environment 

DBMS: DataBase Management Environment 

A software system facilitating the creation and 

maintenance of a data base and the execution of programs 

using the data base. 

DBNL: Dial Backup Network Link 

(Network) 

DBO: DataBase Owner 

(Databases) 

DBP: DataBase Publishing 

DBPSK: Differential Binary Phase Shift Keying 


dBr: DeciBel Relative 

Audio intensity measurement unit 

DBR: Dos Boot Record 

DBRAD: Data Base Relational Application 

Directory 

DBRM: DataBase Request Module 

DBS: DataBase System 

(Databases) 

DBS: Direct Broadcast Satellite 


DBS: Duplex Bus Selector 

DBTG: DataBase Task Group 

Subcommittee of CODASYL (Organizations) 

DBV: Digital Broadcast Video 

DBWR: DataBase WRiter 


DC: Data Cartridge 

(Hardware) 

DC: Data Collection 

DC: Data Communication 


DC: Data Compression 

DC: Data Control 

DC: Device Context 


DC: Device Control 

DC: Direct Current 

DC 


D

DC 

DC: Domain Controller 

(Network) 

DCA: Defense Communications Agency 

The government agency responsible for the defense data 

network (DDN). (Organizations) 

DCA: Digital Communications Associates 

DCA: Distributed Communication Architecture 

DCA: Document Content Architecture 

Describes how a document is organized (tabulator, 

headers, footers, ...) so it appears the same on different 

systems 

DCA: Dynamic Cache Architecture 

DCAF: Distributed Console Access Facility 

(IBM) 

DCAM: Digital CAMera 

(Hardware) 

DCAM: Direct Chip Attach Module 

DCB: Device Control Block 

DCB: Disk Coprocessor Board 

(Novell) 

DCC: Data Country Code 

DCC: Digital Command Control 

DCC: Digital Compact Cassette 

(Hardware) (Philips) 

DCC: Digital Content Creation 

DCC: Direct Cable Connection 

(Hardware) 

DCC: Direct Client Connection 

DCC: Display Combination Code 

DCCS: DisContiguous Shared Segments 

DCD: Data Carrier Detect 

DCD: Database Connector Descriptor 


DCD: Document Content Description 

DCE: Data Circuit-terminating Equipment 

DCE: Data Communication Equipment 

A type of hardware, such as a modem, that is responsible 

for encoding a digital signal for delivery to a compatible 

DCE connected by a data link. In contrast with Data 

Terminal Equipment (DTE) (Communication) 

DCE: Distributed Computing Environment 

DCED: Distributed Computing Environment 

Daemon 

DCF: Data Communication Facility 

(IBM) 

DCF: Data Compression Facility 

DCF: Data Count Field 

(IBM) 

DCF: Design rule for Camera Filesystem 

DCF: Distributed Coordination Function 


DCF: Driver Configuration File 

(Lotus) 

DCI: Data Capture Interface 

DCI: Display Control Interface 

DCL: Data Control Language 

DCL: DeCLaration 


DCL: Device CLear 

DCL: Digital Command Language 

(DEC) 

DCL: Digital Control Logic 

DCLU: Digital Carrier Line Unit 

DCLZ: Data Compression Lempel-Ziv 

DCM: Digital Carrier Module 

DCML: Dynamic Configuration Markup 

Language 

DCNA: Data Communication Network 

Architecture 

DCO: Digitally Controlled Oscillator 

(Hardware) 

DCOM: Distributed Component Object Model 

(Microsoft) 

DCP: Device Color Profile 

(Software) 

DCP: Device Control Protocol 

DCS: Data Control System 

DCS: Desktop Color Separation 

(Software) 

DCS: Digital Cellular System 

DCS: Digital Cross-connect System 

DCS: Distributed Control System 

DCT: DiCTionary 


DDC 

DCT: Discrete Cosine Transform 

Mathematical function used by video encoders to achieve a 

high compression ratio. (Software) 

DCT: Display Compression Technology 

DCU: Data Cache Unit 

DCU: Delphi Compiled Unit 

(Software) (Borland) 

DD: Data Definition 

(Databases) 

DD: Data Dictionary 

DD: Digital Display 

DD: Double Density 

DDA: Digital Differential Analyzer 

A differential analyzer (DA) that uses digital 

representations for analog quantities. 

DDA: Distributed Data Access 

DDA: Domain-Defined Attribute 

DDAP: Digital Distribution of Advertising for 

Publications 

User-driven organization working towards enabling the 

universal exchange of digital ads throughopen process 

integration and the use of accredited standards. See 

http://www.ddap.org (Organizations) 

DDB: Device Dependent Bitmap 

DDB: Device Descriptor Block 

DDBMS: Distributed DataBase Management 

System 

(Databases) 

DDC: Digital Data Channel 

DDC: Display Data Channel 


D

DDCMP 

DDCMP: Digital Data Communications 

Message Protocol 

(DEC) 

DDCS: Distributed Data Connection Services 

(IBM) 

DDD: Direct Distance Dialing 

DDE: Direct Data Entry 

DDE: Dynamic Data Exchange 

Interprocess communication mechanism (Software) 

(Microsoft) 

DDEML: Dynamic Data Exchange Manager 

Library 

(Microsoft) 

DDF: Data Decryption Field 


DDF: Distributed Data Facility 

DDF: Dynamic Data Formatting 

(IBM) 

DDI: Device Driver Interface 

An interface that facilitates driver portability across 

different UNIX system versions on SPARC hardware. 

(Operating systems) (Sun) 

DDI: Digital Document Interchange 

DDI: Direct Dial In 

DDIM: Device Driver Initialization Model 

DDK: Driver Development Kit 

(Software) 

DDL: Data Definition Language 

DDL: Document Description Language 

DDM: Distributed Data Management 

(IBM) 

DDMA: Distributed Direct Access Memory 

DDML: Document Definition Markup Language 

DDN: Defense Data Network 

Comprises the MILNET and several other Department of 

Defense networks. (Network) 

DDNS: Dynamic Domain Name System 

(Network) 

DDoS: Distributed Denial Of Service 

(Network) 

DDP: Datagram Delivery Protocol 

DDP: Distributed Data Processing 

DDP: Document-Driven Programming 

(Software) 

DDR: Dance Dance Revolution 

The most awesomest dance simulator around (Software) 

(Sony) 

DDR: Dial on Demand Routing 

(Network) 

DDR: Double Data Rate 

Memory access architecture that supports data transfers 

on both edges of each clock cycle, which doubles the 

memory chip's data throughput. DDR also consumes less 

power, which makes it well-suited for use with notebook 

computers (Hardware) 

DDR: Dynamic Desktop Router 

DDR: Dynamic Document Review 

(Software) (Symantec) 


DEMPR 

DDR-SDRAM: Double Data Rate - Synchronous 

Dynamic Random Access Memory 

(Hardware) 

DDR-SMII: Double Data Rate - Serial Media 

Independent Interface 

(Network) 

DDS: Data Description Specification 

DDS: Design Data Sheet 

DDS: Digital Data Storage 

DDS: Digital Dataphone Service 

(AT&T) 

DDS: Distributed Database Services 

DDS: Distributed Directory Service 

DDSA: Digital Data Service Adapter 

DDT: Dynamic Debugging Tool 

DDWG: Digital Display Working Group 


DDX: Digital Data eXchange 

DE: Device End 

DEA: Data Encryption Algorithm 

DEA: Disposable Email Address 

DEB: Digital European Backbone 

(Network) 

DEBI: Dma Extended Bus Interface 

(Hardware) 

DEC: DECrement 

DEC: DEvice Clear 

DEC: Digital Equipment Corporation 

DECNET: Digital Equipment Corporation 

NETworking 

Network protocol 

DECT: Digital Enhanced Cordless 

Telecommunications 


DECUS: Digital Equipment Corporation Users 

Society 

DEK: Data Encryption Key 

DEL: Data Extraction Language 

DEL: DELete 

DELNI: Digital Ethernet Local Network 

Interconnect 

DELQA: Digital Ethernet Lowpower Q-bus 

network Adapter 

DELSTR: DELete STRing 

(IBM) 

DELTA: Developing European Learning 

through Technology Advance 

DELUA: Digital Ethernet Lowpower Unibus 

network Adapter 

DELUG: DEutsche Linux User Group 

DEMARC: Distributed Enterprise Managemant 

ARChitecture 

DEMPR: Distributed Enterprise Management 

ARChitecture 


D

DEN 

DEN: Directory Enabled Networking 

The DEN Initiative (see www.dtmf.org) is an effort to build 

intelligent networks and networked applications that can 

associate users and applications to services available 

from the network according to a consistent and rational set 

of policies (Network) 

DEN: Document Enabled Networking 

(Novell) 

DENIM: Directory Enabled Net Infrastructure 

Model 


DEPCA: Digital Ethernet Personal Computerbus 

Adapter 

DEQNA: Digital Ethernet Q-bus Network 

Adapter 

DER: Distinguished Encoding Rules 

DEREP: Digital Ethernet REPeater 

DES: Data Encryption Standard 

A commonly used algorithm developed by the U.S. National 

Bureau of Standards for encrypting and decrypting data. 

DES: Data Entry Sheet 

DES: DEScription 

Ffile name extension 

DES: Domino Extended Search 


DESC: Defense Electronics Supply Center 

DESPR: Digital Ethernet Single Port Repeater 

DESTA: Digital Ethernet thin-wire STation 

Adapter 

DET: Device Execute Trigger 

DET: Directory Entry Table 

A table on every network volume that contains directory 

entries for each file on the volume. The table, stored in the 

server's memory, enables quick access to the location of 

every file (Novell) 

DEU: Defective End User 

Often described by IS support personnel (Net lingo) 

DEUNA: Digital Ethernet Unibus Network 

Adapter 

DEV: DEVice 

DF: Data Field 

DF: Destination Field 

DF: Device Flag 

DF: Double Flag 

DFC: Data Flow Control 

DFD: Data Flow Diagram 

DFDR: Digital Flight Data Recorder 

(Hardware) 

DFDSM: Data Facility Distributed Storage 

Management 

DFDSS: Data Facility Data Set Services 


DfE: Designed For Environment 

DFE: Desktop Functional Equivalent 

(Compaq) 

DFHSM: Data Facility Hierarchical Storage 

Manager 

(IBM) 

DFI: Digital Facility Interface 


DFM: Design For Manufacturability 

(IBM) 

DFM: Device Fault Manager 

Provides real-time fault analysis for Cisco devices 


DFN: Dedicated Frogans Network 

See http://www.frogans.com/ (Software) 

DFN: Deutsches ForschungsNetz 

DFP: Data Facility Product 

DFP: Digital Flat Panel 

(Hardware) 

DFP: Distributed Functional Plane 

DFPI: Digital Flat Panel Initiative 

DFR: Double Frequency Recording 

(Hardware) 

DFS: Direct File System 

DFS: Distributed File System 


DFS: Domino Fax Server 

(Software) (Lotus) 

DFS: Dynamic File System 


DFSMS: Data Facility Storage Management 

System 

(IBM) 

DFT: Design For Testability 

DFT: Diagnostic Function Test 

DFT: Discrete Fourier Transform 

DFT: Distributed Function Terminal 

DFU: Data File Utility 

DGA: Direct Graphics Access 

A method of arbitrating access to the display between XGL 

and X11/NeWS server. This allows XGL to talk directly to 

the frame buffer, which results in maximum performance. 

DGC: Data General Corporation 

Data General produced minicomputers and was featured in 

the book "Soul of a New Machine" by Tracey Kidder 


DGC: Distributed Garbage Collection 

(Software) 

DGIS: Direct Graphics Interface Standard 

DGP: Dissimilar Gateway Protocol 

DGR: Dynamic Growth and Reconfiguration 

(Artecon) 

DGUX: Data General UniX 

DH: Diffie-Hellman 

SSL key exchange method 

DHCF: Distributed Host Command Facility 

DHCP: Dynamic Host Configuration Protocol 

A system that assigns different IP addresses to devices 

each time they connect to the network. DHCP can support 

a mix of static and dynamic IP addresses (Network) 

DHL: Dynamic Head Loading 

DHP: Dr. Halo Picture 


DI 

DHTML: Dynamic HyperText Markup Language 

DI: Data In 


D

DI 

DI: Destination Index 

Processor register (Hardware) (Intel) 

DIA: Document Interchange Architecture 

DIANE: DIrect Access Network for Europe 

DIB: Device Independent Bitmap 

File format for raster bitmaps (Microsoft) 

DIB: Directory Information Base 

DIB: Dual Independent Bus 

(Hardware) 

DIBOL: DIgital Business Oriented Language 

DIC: DICtionary 


DIC: Digital Interface Controller 

DICE: Dolby's Interactive Content Encoding 

DICE: Dynamic Internet Configuration 

Environment 

DID: Direct Inward Dialing 

DIDS: Distributed Intrusion Detection System 

DIF: Data Interchange Format 

DiffServ: DIFFerential SERVices 

Allows providers to allocate different levels of service to 

different users of the Internet (Network) 

DIFMOS: Double Injection Floating gate Metal 

Oxyde Semiconductor 

DIFS: Dcf Inter-Frame Spacing 


DIG: Domain Internet Groper 

(Network) 

DII: Dynamic Invocation Interface 

(Software) 

DIIP: Direct Interrupt Identification Port 

DIL: Dual In Line 

Pin organization in ICs (Hardware) 

DILLIGAF: Do I Look Like I Give A F***? 

Sometimes used by tech support people (Net lingo) 

DILLIGAF: Does It Look Like I Give A F**ck 

(Net lingo) 

DIME: Desktop Integrated Media Environment 

DIME: Direct Internet Message Encapsulation 

DIME: DIrect Memory Execute 

(Hardware) 

DIME: Dual Independent Map Encoding 

DIMM: Dual In line Memory Module 

(Hardware) 

DIN: Deutsche Industrie Norm 

German standards organization (Organizations) 

DIO: Data Input-Output 

DIP: Datacenter Infrastructure Provider 

DIP: Dialup Internet Protocol 

DIP: Digital Imaging Processing 

DIP: Dual Inline Pin 

Refers to the physical geometry of an integrated circuit or 

other electronic package; rectangular, with pins on the two 

longer sides (Hardware) 

DIPP: Dual Inline Pin Package 

Refers to the physical geometry of an integrated circuit or 

other electronic package; rectangular, with pins on the two 

longer sides (Hardware) 


DIR: DIRectory 

DIS: Draft International Standard 

DIS: Dynamic Impedance Stabilization 

DISA: Data Interchange Standards 

Association 

DISA: Direct Inward System Access 

DISI: Directory Information Services 

Infrastructure 

(Network) 

DISM: Digital Interface Standards for 

Monitors 

(Hardware) 

DISOSS: DIStributed Office Support System 

(IBM) 

DISP: DISPlacement 

DISP: Domino Internet Starter Pack 

(IBM) 

DISP: Dutch Independent Shareware 

Programmer 

DLCI 

DIT: Directory Information Tree 

A graphical display of an organization's directory structure, 

sites, and servers, shown as a branching structure. The 

top-level (root) directory usually represents the 

organization level 

DIU: Digital Interface Unit 

DIV: DIVide 

DIVE: Direct Interface Video Extension 

(IBM) 

Divx: DIgital Video eXpress 

(Hardware) 

DIW: D-Inside Wire 

(AT&T) 

DIX: Dec, Intel, Xerox 

DIY: Do It Yourself 

(Net lingo) 

DIZ: Description In Zip 


DKI: Driver Kernel Interface 

An interface between the UNIX system kernel and different 

types of drivers. DKI consists of a set of driver-defined 

functions that are called by the kernel. These functions are 

entry points into a driver. (Operating systems) 

DL: Distribution List 

DL: DownLoad 

DL/1: Data Language 1 

(IBM) 

DL/1: Data Language/1 

DLA: Drive Letter Access 

(HP) 

DLB: Dynamic Load Balancing 

DLC: Data Line Card 

(Hardware) 

DLC: Data Link Control 

DLC: Digital Loop Carrier 

(Hardware) 

DLCI: Data Link Connection Identifier 

Identifies the Permanent Virtual Circuit (PVC) connections 

from the user to the frame relay cloud. Assigned by the 

service provider (Communication) 


D

DLD 

DLD: Display List Driver 

DLE: Data Link Escape 

DLL: Dynamic Link Library 


DLL: Dynamic Link Loader 

DLM: Distributed Lock Manager 

DLM: Dynamic Link Module 

DLP: Digital Light Processing 

DLP: Discrete Logarithmic Problem 

DLPI: Data Link Provider Interface 

The SVR4 STREAMS-based kernel-level interface that 

supports the services of the Data Link Layer for both 

connection-mode and connectionless-mode services. 

(Network) 

DLR: Dos Lan Requester 

DLR: Dynamic Link Routine 

(Software) 

DLS: Data Link Switching 

(IBM) 

DLS: Dos Lan Services 

(Network) 

DLS: DownLoadable Sample 

DLSCAP: Data Link Switching Client Access 

Protocol 

(Network) 

DLSW: Data Link SWitching 

DLT: Digital Linear Tape 

(Hardware) 

dLVQ: Dynamic Learning Vector Quantizer 

DLZ: Digital Lempel-Ziv 

Compression algorithm 

DM: Delta Modulation 

DM: Desktop Management 

DM: Disconnect Mode 

DM: Distributed Memory 

DM: Document Management 

DMA: Digital Music Aggregator 

DMA: Dimensional Media Associates 

DMA: Direct Memory Access 

The transfer of data directly into memory without 

supervision of the processor. The data is passed on the 

bus directly between the memory and another device. In 

contrast with Direct Virtual Memory Access (DVMA). 

(Hardware) 

DMA: Document Management Alliance 

DMAC: Direct Memory Access Controller 

(Hardware) 

DMACS: Distributed Manufacturing 

Automation & Control Software 

DMAPI: Dictation Macro Application 

Programming Interface 

(Software) 

DMB: Dhtml Menu Builder 

Used to idetify a DHTML/Javascript menu building tool 

called DHTML Menu Builder. Also used in the extension of 

the application's project files (Software) 

DMB: Digital Multimedia Broadcasting 

DMB: Domain Master Browser 

(Network) 


DMC: Desktop Multimedia Conferencing 

DMCA: Digital Millennium Copyright Act 

DMD: Device Manager Driver 

DMD: Digital Micromirror Device 

(Hardware) (TI) 

DMD: Directory Management Domain 

DMSDK 

DMDF: Distributed Management Data Facility 

DME: Dictionary Module Editor 

(CAI) 

DME: Direct Memory Execution 

DME: Distributed Management Environment 

DMF: Digest Message Format 

DMF: Distribution Media Format 

(Microsoft) 

DMG: Data Management Group 

The department that manages data. 

DMI: Definition of Management Information 

DMI: Desktop Management Interface 

DMI: Digital Multiplexed Interface 

DMIF: Delivery Multimedia Integration 

Framework 

DMK: Dynamic Management Kit 

(Sun) 

DML: Data Manipulation Language 

(Databases) 

DMM: Digital MultiMeter 

(Hardware) 

DMM: Direct Mail Manager 


DMMS: Dynamic Memory Management System 

DMO: Distributed Management Object 

This OLE server exposes representations of SQL Server 

database objects (tables, stored procedures, server 

properties, and so on), many of which are usually modified 

through Transact-SQL (Databases) (Microsoft) 

DMOS: Double-diffused Metal Oxide 

Semiconductor 

(Hardware) 

DMP: Dot Matrix Printer 

DMPC: Distributed Memory Parallel Computer 

DMPP: Distributed Memory Parallel Processor 

DMQS: Display Mode Query and Set 

(IBM) 

DMS: Data Management Software 

DMS: Defense Messaging System 

Global messaging system used for transfer of nonclassified 

and classified data (for example, encrypted 

emails) (Software) 

DMS: Desktop Management Suite 

(Seagate) 

DMS: Digital Multiplexed System 

DMS: Distributed Media Services 

DMS: Document Management System 

DMSCMS: Display Management System 

DMSD: Digital MultiStandard Decoding 

DMSDK: Digital Media Software Development 

Kit 

(Software) (SGI) 


D

DMSS 

DMSS: Distributed Mass Storage System 

DMT: Discrete MultiTone 

DMTF: Distributed Management Task Force 

The DMTF is the industry organization that is leading the 

development, adoption and unification of management 

standards and initiatives for desktop, enterprise and 

Internet environments (Organizations) 

DMU: Data Manipulation Unit 

DMVT: Dynamic Video Memory Technology 


DMY: Day Month Year 

DMZ: De-Militarized Zone 

LAN segment between two firewalls (Network) 

DN: Distinguished Name 


DN: DowN 

DNA: Digital Network Architecture 

(DEC) 

DNA: Distributed interNet Application 

(Microsoft) 

DNAfs: Distributed interNet Application for 

Financial Services 

(Microsoft) 

DNC: Direct Numerical Control 

DNC: Dynamic Network Controller 

DNCP: DecNet Control Protocol 

DNCRI: Division of Networking and 

Communication Research and Infrastructure 

DnD: Drag aNd Drop 

(Software) 

DNHR: Dynamic Non Hierarchical Routing 

DNI: Decnet Network Interface 

DNIC: Data Network Identification Code 

DNIS: Dialed Number Identification Service 

DNJ: Developer Network Journal 

(Microsoft) 

DNLC: Directory Name Lookup Cache 

Unix file cache (Operating systems) (Sun) 

DNM: Distributed Network Management 

(Software) 

DNR: Digital Noise Reduction 

(Hardware) 

DNR: Domain Name Resolver 

(Network) 

DNS: Digital Nervous System 

(Microsoft) 

DNS: Domain Name System 

The process that translates Internet domain names (such 

as www.acronyms.ch) into IP addresses (Network) 

DNSSEC: Domain Name System SECurity 

(Security) 

DNSSEC: Domain Name System SECurity 

extensions 

Technique for securing the Domain Name System. It is a 

set of extensions to DNS, which provide end-to-end 

authenticity and integrity and was designed to protect the 

Internet from certain attacks. See also 

http://www.dnssec.net/ 

DO: Data Out 


DO: Distributed Objects 


DOA: Dead On Arrival 

Service to replace malfunctioning devices (Hardware) 

DOA: Dead Or Alive 

(Games) 

DOC: Declaration Of Conformity 

DOC: DOCument 

File name extensions 

DOCSIS: Data Over Cable Service Internet 

Specification 

DOCSV: Data Over Circuit-Switched Voice 

DOD: Department Of Defense 


DOD: Direct Outward Dialing 


DOE: Distributed Objects Environment 

DOE: Distributed Objects Everywhere 


DOI: Domain Of Interpretation 

DOIP: Dial Other Internet Providers 

(IBM) 

DOIT: Disabilities, Opportunities, 

Internetworking and Technology 

DO-IT: Disabilities, Opportunities, 

Internetworking and Technology 

DOJ: Department Of Justice 


DP 

DOLAP: Desktop OnLine Analytical Processing 

DOM: Document Object Model 

Popular, standardized way of manipulating XML data 

DOMAIN: Distributed Operating Multi Access 

Interactive Network 

DOMF: Distributed Object Management 

Facility 

(HP) 

DOOM: Decentralized Object-Oriented 

Machine 

DoS: Denial Of Service 

(Network) 

DOS: Disk Operating System 


DoSBS: Denial Of Service By Service 

The practice of making large numbers of legal accesses to 

a computer's public interface (i.e. web site) with the 

intention of slowing or crashing the system. Hence Denial 

of Service By Service - the serving computer cannot keep 

up with the demands (Network) 

DOSEM: Disk Operating System EMulation 

DOT: Design Oriented Technology 

DOT: DOcument Template 


DOV: Data Over Voice 


DOVBS: Data Over Voice Bearer Service 


DOW: Day Of Week 

DOW: Direct OverWrite 

DP: Data Processing 


D

DP 

DP: Defect Prevention 

(Software) 

DP: Detection Point 

DPA: Demand Protocol Architecture 

(3Com) 

DPA: Document Printing Architecture 

DPAM: Demand Priority Access Method 

DPAREN: Data PARity ENable 

DPB: Drive Parameter Block 

DPBC: Delivery Point Bar Code 

US Mail system to speed mail sorting, increase delivery 

accuracy, and reduce postage costs 

DPC: Deferred Procedure Call 

DPC: Direct Program Control 

DPDT: Double Pole Double Throw 

DPE: Distributed Processing Environment 

DPI: Data Processing Information 

DPI: Digital Phone Interface 

DPI: Distributed Protocol Interface 

dpi: Dots Per Inch 

Resolution Measurement 

DPKG: Debian PacKaGe 

Binary software package for installation on Debian 

GNU/Linux. Also, the software installation program 


DPKT: Dynamic Public Key Technology 

DPL: Descriptor Privilege Level 

DPL: Distributed Program Link 

(IBM) 

DPM: Defects Per Million 

DPM: Demand Planning Module 

(Software) 

DPM: Digital Panel Meter 

(Hardware) 

DPMA: Data Processing Management 

Association 


DPMI: Dos Protected Mode Interface 


DPMS: Display Power Management Signaling 

(Hardware) 

DPMS: Dos Protected Mode Services 

DPNPH: Data Packet Network-Packet Handler 

DPO: Data Phase Optimization 

DPOF: Digital Print Order Format 

DPP: Distributed Parallel Processing 

DPRAM: Dual-Ported Random Access Memory 

A type of random access memory that allows multiple 

reads or writes to occur at the same time (Hardware) 

DPRG: Dallas Personal Robotics Group 

United States' oldest club involved in amateur robotics 


DPROP: Data PROPagator 

(IBM) 

DPS: Desktop Purchasing System 

Buy-side electronic commerce system which supports the 

procurement process of indirect goods and services 


DPS: Digital Pixel Sensor 

(Hardware) 

DPS: Display PostScript 

DPS: Document Processing System 

DPSK: Differential Phase Shift Keying 


DPST: Double Pole Single Throw 

DPT: Distributed Processing Technology 

(DPT) 

DPtoTP: Display Coordinates TO Tablet 

Coordinates 

Coordinates conversion 

DRDW 

DPV: Distributed Partitioned View 

Joins horizontally partitioned data from a set of member 

tables across one or more servers, making the data appear 

as if from one table (Databases) (Microsoft) 

DQDB: Distributed Queue Dual Bus 

DQL: Data Query Language 

DQP: Distributed Query Processor 

(Databases) 

DQPSK: Differential Quadrature Phase Shift 

Keying 


DR: Data Received 

DR: Disaster Recovery 

Process or plan by which a business would recover it's IT 

systems in the case or a major incident (disaster) 

DR.BOND: Dial-up Router Bandwidth ON 

Demand 

(NEC) 

DRAC: Dell Remote Assistant Card 

(Hardware) (Dell) 

DRAM: Dynamic Random Access Memory 

A type of semiconductor random-access memory that 

stores information in integrated circuits that contain 

capacitors. Because capacitors lose their charge over 

time, the dynamic RAM must be periodically "refreshed" or 

recharged. (Hardware) 

DRAS: Dynamic Remote Access Service 

(Microsoft) 

DRAW: Direct Read After Write 

DRB: Dram Row Boundary 

DRC: Design Rule Checks 

DRD: Data Reading Device 

DRD: Digital Ruggedized Display 

(Hardware) 

DRDA: Distributed Relational Database 

Architecture 

(Databases) 

DRDAAS: Distributed Relational Database 

Architecture Application Server 

DR-DOS: Digital Research Disk Operating 

System 

DRDRAM: Direct Rambus Dynamic Random 

Access Memory 

(Hardware) 

DRDW: Direct Read During Write 


D

DRE 

DRE: Document Rendering Engine 

Collection of Java classes that can be used to define an 

abstract document and render it in PDF or HTML. A 

document consists of a collection of elements such as 

text, lists (bulleted, numbered, plain), tables, images, 

fonts, color, etc. (Software) (IBM) 

DREN: Defense Research and Engineering 

Network 

(Network) 

DRF: Data Recovery Field 

In NTFS file encryption keys are stored there (Operating 

systems) (Microsoft) 

DRI: Declarative Referential Integrity 

(Databases) 

DRI: Defense Research Internet 

DRI: Digital Research Incorporated 

DRK: Devnet Resource Kit 

(Software) (Macromedia) 

DRM: Destination Release Mechanism 

DRM: Digital Rights Management 

Copy-protection scheme 

DRM: Distributed Resource Management 

DRMOS: Digital Rights Management Operating 

System 

DRMU: Digital Remote Measurement Unit 

DRO: Data Request Output 

DRO: Destructive Read-Out 

DRP: Decnet Routing Protocol 

DRP: Distribution and Replication Protocol 

The goal of the DRP protocol is to significantly improve the 

efficiency and reliability of data distribution over HTTP 

DRS: Document Registration System 

DRS: Driver ReSource 


DRV: device DRiVer 


DRV: DRiVe 

DRW: Drawing 


DS: Data Segment 


DS: Data Send 

DS: Data Server 

DS: Data Strobe 

(Hardware) 

DS: Database Server 

(Databases) 

DS: Differentiated Service 

A IETF standard for a small, well-defined set of per-packet 

building blocks from which a variety of services may be 

built, thereby providing a framework for delivering quality of 

service (QoS) in networks (Network) 

DS: Digital Science 

(Hardware) (Kodak) 

DS: Digital Services 

DS: Digital Signal 

DS: Digital Studio 

(Sony) 


DS: Directory Service 

(Network) 

DS: Direct-Sequence 

IEEE 802.11 wireless LAN access method 


DS: Distribution Service 

DS: Double-Sided 

(Hardware) 

DS/PPM: Direct Sequence/Pulse Position 

Modulation 

(Hardware) 

DS0: Digital Signaling Zero 


DS3D: DirectSound 3D 


DSA: Digital Signature Algorithm 

DSA: Digital Storage Architecture 

DSIMM 

DSA: Directory System Agent 

The software that provides the X.500 directory service for 

a portion of the directory information base. Generally, each 

DSA is responsible for the directory information for a single 

organization or organizational unit. 

DSA: Distributed Systems Architecture 

DSA: Dynamic Scalable Architecture 

DSAP: Destination Service Access Point 

DSAV: Dr. Solomon's Anti Virus 

(Software) 

DSBAM: Double-SideBand Amplitude Module 

DSBM: Designated Subnet Bandwidth Manager 

A device on a managed subnetwork that acts as the Subnet 

Bandwidth Manager for the subnetwork to which it is 

attached (Network) 

DSC: Digital Still Camera 

(Hardware) 

DSC: Document Structuring Convention 

DSC: Document Structuring Conventions 

DSCP: Differentiated Services Code Point 

(Network) 

DSD: Data Stream Direct 

DSD: Data Structure Diagram 

DSDD: Double Sided, Double Density 

DSDM: Drop Site Database Manager 

A process (not the sending client) responsible for 

maintaining a registry or database of potential drop sites 

for drag and drop operations. 

DSE: Data Storage Equipment 

DSE: Directory Services Environment 

Contains a list of Naming Contexts and Application 

Partitions maintained by a Domain Controller (Operating 


DSEA: Display Station Emulation Adapter 

DSF: Dispersion Shifted Fibre 

Optical fiber type (Communication) 

DSHD: Double Sided, High Density 

DSI: Defense Simulation Internet 

DSI: Distributed Storage Infrastructure 

DSIG: Digital SIGnature 

(Security) 

DSIMM: Dual Single Inline Memory Module 


D

DSIS 

DSIS: Distributed Support Information 

Standard 

DSL: Dialogue Scripting Language 

DSL: Digital Subscriber Line 


DSL: Distributed Service Logic 

DSL: Domain Specific Language 

A programming languge created to solve a specific type of 

problem (Software) 

DSL: Dual Stress Liner 

Technology by AMD and IBM to strain silicon chips to 

enhance their performance (Hardware) 

DSL: Dynamic Simulation Language 

DSL2: Downloadable Sounds Level 2 

(Hardware) 

DSLAM: Digital Subscriber Line Access 

Multiplexer 

(Hardware) 

DSLCP: Dynamically Switched Link Control 

Protocol 

(Network) 

DSLR: Digital Single-Lens Reflex 

(Hardware) 

DSM: Directory Service Migration 

DSM: Discrete Sequence Modulation 

DSM: Distributed Shared Memory 

(Hardware) 

DSMA: Digital Sense Multiple Access 

DSM-CC: Digital Storage Media - Command 

and Control 

DSML: Directory Services Markup Language 

DSMN: Directory Service Manager for Netware 


DSN: Data Source Name 

(Databases) 

DSN: Delivery Service Notification 

DSN: Developer Support News 

DSN: Distributed Systems Network 

DSO: Data Source Object 

(Databases) 

DSO: Decision Support Object 

DSO: Digital Storage Oscilloscope 

An oscilloscope with a built-in memory used to store 

electronic waveforms (Hardware) 

DSO: Dynamic Shared Object 

(Software) 

DSOM: Distributed System Object Model 


DSP: Development Service Provider 

DSP: Dictionary Server Protocol 

(Network) 

DSP: Digital Signal Processor 

A computer oriented toward math-intensive applications, 

often a single chip or small chip set. (Hardware) 

DSP: Digital Sound Processor 

(Hardware) 

DSP: Directory Synchronization Protocol 

(Lotus) 

DSP: Document Services for Printing 


DSP: Domain-Specific Part 

(Network) 

DSPT: Display Station Pass-Thru 

(IBM) 

DSQD: Double Sided, Quad Density 

DSR: Data Set Ready 


DSR: Device Status Register 

DSR: Device Status Report 

DSRI: Digital Standard Relational Interface 

DSS: Decision Support System 

DSS: Digital Signature Standard 

DSS: Direct Station Selector 

(Hardware) 

DSS: Distributed Security Service 

DTD 

DSSI: Digital Standard Systems Interconnect 

(DEC) 

DSSLL: Differentiated Services over Specific 

Link Layers 

A system for mapping between Differentiated Services and 

other bandwidth-management protocols such as 802.1p 

and ATM (Network) 

DSSS: Direct Sequence Spread Spectrum 


DSSSL: Document Style Semantic and 

Specification Language 

International standard for associating processing with 

SGML documents 

DST: Daylight Saving Time 

DSTN: Double-layer SuperTwist Nematic 


DSU: Data Service Unit 

DSU: Digital Service Unit 

DSVD: Digital Simultaneous Voice and Data 


DSW: Data Status Word 

DSW: Device Status Word 

DSX: Digital Signals Cross-connect 

DT4DTD: DataTypes For Document Type 

Definition 

DTA: Direct Tape Access 

(Seagate) 

DTA: Disk Transfer Area 

DTAP: Direct Transfer Application Part 

DTB: Data Transfer Bus 

Part of the VMEbus specification that contains data and 

address pathways and associated control signals. 

Functional modules called DTB masters and DTB slaves 

use the DTB to transfer data between each other. 

(Hardware) 

DTC: Design-Time Control (or Component) 

(Software) 

DTC: DeskTop Conferencing 

DTC: Distributed Transactions Coordinator 


DTCP: Digital Transmission Content Protection 

DTD: Document Type Definition 


D

DTE 

DTE: Data Terminal Equipment 

That part of a data station that serves as a data source, 

data sink, or both, and provides for the data communication 

control function according to protocols. In contrast with 

Data Communication Equipment (DCE). (Communication) 

DTE: Dumb Terminal Emulator 

DTF: Distributed Test Facility 

DTL: Dialogue Tag Language 

(IBM) 

DTL: Diode Transistor Logic 


DTLB: Dual Translation Lookaside Buffer 

DTM: Deterministic Turing Machine 

DTM: Digital Terrain Mapping 

DTM: Distributed Transaction Monitor 

DTM: Document Table Model 

Interface to a document model designed specifically for the 

needs of Apache's XPath and XSLT implementations. The 

motivation behind this model is to optimize performance 

and minimize storage (Software) 

DTMF: Dual Tone MultiFrequency 

Use of two simultaneous voice-band tones for dial (such as 

touch tone) (Hardware) 

DTML: Document Template Markup Language 

DTMS: Data Transformation Management 

System 

DTO: Data Transfer Object 

An "envelope" used to transport any kind of data between 

tiers of systems (Software) 

DTO: Day-Time Organizer 

(Software) 

DTP: DeskTop Publishing 

DTP: Distributed Transaction Processing 

DTR: Data Terminal Ready 


DTR: Data Transfer Rate 

DTR: Dedicated Token Ring 

(Network) 

DTR: DeskTop Reproduction 

DTR: Draft Technical Report 

DTS: Data Transformation Service 

(Databases) 

DTS: Developer Technical Support 


DTS: Digital Theater Surround 

DTS: Distributed Time Service 

DTS: Distributed Traffic Shaping 

(Cisco) 

DTSS: Dartmouth Time Sharing System 

DTU: Demand Transmission Unit 

DTV: DeskTop Video 

DTV: Digital TeleVision 

(Hardware) 

DTVC: DeskTop Video Conferencing 

DU: Disk Usage 

DUA: Directory User Agent 

The software that accesses the X.500 directory service on 

behalf of the directory user. The directory user may be a 

person or another software element. 


DUAT: Direct User Access Terminal 

DUL: Dialup Users List 

Project to encourage good e-mail behaviour and 

accountability without denying regular e-mail. See 

http://mail-abuse.org/dul/ 

DUN: Dial-Up Networking 

(Network) 

DUNCE: Dial Up Network Connection 

Enhancement 

(Network) 

DUP: DUPlex 

Used in SCSI interface for split backplane (Hardware) 

DUT: Device Under Test 

DUW: Distributed Unit of Work 

(IBM) 

DV: Digital Video 

DVB: Digital Video Broadcasting 


DVC: Desktop Video Conferencing 

DVC: Digital Video Camera 

(Hardware) 

DVI-A 

DVD: Deutsche Vereinigung für Datenschutz 

DVD: Digital Video (or Versatile) Disk 

(Hardware) 

DVD+MRW: Digital Video (or Versatile) Disk- 

Mount rainier ReWritable 

Standard that enables native OS support of data storage 

on DVD+RW. This makes the technology far easier to use 

and allows the replacement of the floppy. See 

http://www.mt-rainier.org/ (Hardware) 

DVD+RW: Digital Video (or Versatile) Disk- 

ReWritable 

(Hardware) 

DVD-A: Digital Video (or Versatile) Disk-Audio 

(Hardware) 

DVD-MMVFF: Digital Versatile Disc MultiMedia 

Video File Format 

DVD-R: Digital Video Disk-Recordable 

DVD-RAM: Digital Versatile Disk - Random 

Access Memory 

A read-write DVD (Hardware) 

DVD-ROM: Digital Versatile Disk - Read Only 

Memory 

A read only DVD (Hardware) 

DVD-RW: Digital Video (or Versatile) Disk- 

ReWritable 

(Hardware) 

DVE: Digital Video Effect 

D-VHS: Digital Video Home System 

DVI: DeVice Independent 


DVI: Diagonal Viewable Image 

(Hardware) 

DVI: Digital Video Interactive 

DVI: Digital Video Interface 

Specification to interface digital flat panels with host PCs 

(Hardware) 

DVI-A: Digital Video Interface-Analog 

(Hardware) 


D

DVI-D 

DVI-D: Digital Video Interface-Digital 

(Hardware) 

DVI-I: Digital Video Interface-Integrated 

(Hardware) 

DVI-V: Digital Video Interface-Vga 

(Hardware) 

DVL: Digital Video Link 

DVM: Digital Volt Meter 

(Hardware) 

DVMA: Direct Virtual Memory Access 

A mechanism to enable a device on the SBus to initiate 

data transfers between it and other SBus 

devices, such as system memory. Contrast with Direct 

Memory Access (DMA). (Hardware) 

DVMRP: Distance Vector Multicast Routing 

Protocol 

(Network) 

DVOF: Digital Video Over Fiber 

DVR: device DriVeR 


DVR: Digital Video Recorder 

(Hardware) 

DVRMP: Distance Vector Multicast Routing 

Protocol 

(Network) 

DVX: Digital Voice eXchange 

DW: Data Warehouse 

(Databases) 

DW: Display Write 

Word Processor (Software) (IBM) 

DW: Double Word 

Four consecutive bytes (32 bits) 

DWA: Data Warehousing Alliance 


DWC: Data Warehouse Catalog 


DWDM: Dense Wavelength Division 

Multiplexing 


DWF: Design Web Format 

Fast, efficient way to distribute design data to anyone who 

needs it. With Autodesk Express Viewer, a small, free, 

downloadable application, you can view and print that rich 

data (Software) (Autodesk) 

DWG: DraWinG 


DWM: Diskless Workstation Management 

DWMT: Discrete Wavelet MultiTone 

DWT: Discrete Wavelet Transform 

DX: DirectX 


DX: DupleX 


DXB: Drawing eXchange Binary 

File name extension (Autodesk) 

DXC: Data eXchange Control 

DXF: Data eXchange File 

DXF: Drawing Exchange Format 



DXI: Data eXchange Interface 

An interface to frame relay networks (Communication) 

DXL: Domino Xml Language 

(IBM) 

DXPC: Differential X Protocol Compressor 

Dxr: Dynamic eXtended Resolution 

(Hardware) (Creative Labs) 

DXTC: DirectX Texture COmpression 

(Microsoft) 

DYNSLT: DYNamic SeLecT 

(IBM) 

E: Exa 

Prefix for 10 power 18 (or, in IT parlance, 2 power 60) 

E 

EAR 

E&M: Ear & Mouth 

Trunking arrangement generally used for two-way switchto-switch 

or switch-to-network connections (Hardware) 

E2E: End-To-End 

The ability of a network to deliver service needed by a 

specific network application from end-to-end, with the 

ability to provide both class of service and reserved 

bandwidth for different types of network traffic (Network) 

E3: Electronic Entertainement Expo 

EA: Effective Address 

EA: Enterprise Agreement 

Licensing scheme (Microsoft) 

EA: Escrowed Authenticator 

EA: Extended Attribute 

(IBM) 

EAB: Enterprise Application Builder 

(Software) 

EADAS: Engineering and Administrative Data 

Acquisition System 

EADASNM: Engineering and Administrative 

Data Acquisition System Network 

Management 

EADT: East Australian Daylight Time 


E-ADT: Extended Abstract Data Type 

(Software) 

EAGLES: Expert Advisory Group on Language 

Engineering Standards 

EAI: Enterprise Application Integration 

EAM: Enterprise Asset Management 

(Software) 

EAM: Evanescent Access Method 

EAN: European Article Number 

Bar code standards family 

EAP: Early Adopter Program 

EAP: Extensible Authentication Protocol 

(Security) 

EAPI: Extended Application Programming 

Interface 

(Software) 

EAPoL: Extensible Authentication Protocol 

Over Lan 

(Security) 

EAR: Enterprise ARchive 

Filename extension (Software) 


D 

E

EAR 

EAR: External Access Register 

EARL: Enhanced Address Recognition Logic 

Is a custom Catalyst 5000 family switch component 

similar to the learning bridge or content-addressable 

memory (CAM) of other types of network switches and 

routers (Hardware) (Cisco) 

EARN: European Academic Research Network 

A network using BITNET technology connecting 

universities and research labs in Europe. (Network) 

EAROM: Electrically Alterable Read Only 

Memory 

(Hardware) 

EARS: Electronic Access to Reference 

Services 

EARS: Electronic Authoring and Routing 

System 

(DEC) 

EARS: Explicit Archive and Retrieval System 

EAS: Enterprise Access Server 

EAS: Enterprise Agreement for S/390 


EASI: Enhanced Asynchronous Scsi Interface 

EAST: East Australian Standard Time 


EAT: End Around Test 

Also known as a wrap test, returns output signal to input 

line (Hardware) 

EATA: Enhanced Advanced Technology bus 

Attachment 

EAX: Environmental Audio eXtensions 

(Hardware) (Creative Labs) 

EB: ExaByte 

1024 petabytes 

EBASIC: Extended Beginners All-purpose 

Symbolic Instruction Code 


EBC: Eisa Bus Controller 

EBCDIC: Extended Binary Coded Decimal 

Interchange Code 

Charachter encoding scheme (IBM) 

EBCT: Electron Beam Computed Tomography 

Character encoding scheme 

EBD: Emergency Boot Disk 

EBDI: Enhanced Background Debug Interface 

(Hardware) (Motorola) 

EBDS: Enhanced Background Debug Software 

EBF: Emergency Bug Fix 

(Software) 

EBF: Engineering Bug Fix 

(Sybase) 

EBI: Equivalent Background Input 

EBI: Extended Background Investigation 

EBI: External Bus Interface 

(Hardware) 

EBIP: Enterprise Business Intelligence Portal 

EBKAC: Error Between Keyboard And Chair 

Pronounced 'ebb-kak', is used to describe user errors -- 

"obviously an EBKAC error" (Net lingo) 


EBML: Extensible Binary Meta Language 

Simple, XML-like binary language for describing data in 

structured style. See http://ebml.sourceforge.net/ 

EBNF: Extended Backus-Naur Form 

ECL 

EBPP: Electronic Bill Presentment and 

Payment 

Allows customers of commerce institutions to view and pay 

their bills online 

EBROM: Electronic Book Read Only Memory 

EBSS: Extended Basic Service Set 

Wireless network with more than one wireless access point 

(Network) 

EBT: Electronic Benefits Transfer 

ebXML: Electronic Business eXtensible 

Markup Language 

This standard aims at creating a modular electronic 

business framework using XML. It is the product of a joint 

initiative by the United Nations (UN/CEFACT) and the 

Organization for the Advancement of Structured 

Information Systems (OASIS) 

EC: Electronic Commerce 

EC: Error Control 

EC: European Community 

EC: Exchange Carrier 


ECAF: European Certification Authority Forum 

ECAL: Enjoy Computing And Learn 

ECAT: Electronic Card Assembly and Test 

(IBM) 

ECB: Electronic CodeBook 

ECB: Event Control Block 

A data structure used to control sending and receiving of 

packets in a Novell Network (Operating systems) (Novell) 

ECC: Electrical Connectivity Checks 

ECC: Elliptic Curve Cryptography 

Technology for public key cryptosystems, providing the 

highest security-to-key size ratio (Security) 

ECC: Error Checking and Correction 

The detection, in the processing unit, and correction of all 

single-bit errors, plus the detection of double-bit and some 

multiple-bit errors. 

ECC: Error Correction Code 

ECD: Enhanced Color Display 

ECD: Enhanced Compact Disk 

ECDL: European Computer Driving Licence 

The ECDL Foundation works to promote an International 

certification of industry-standard computing skills. See 

http://www.ecdl.com (Organizations) 

ECF: Enhanced Connectivity Facilities 

ECHO: European Commission Host 

Organization 

echs: Extended Cylinders, Heads, Sectors 

Enables use of hard drives up to 8.4 GB in size (Hardware) 

ECHT: European Conference on Hypermedia 

Technology 

ECI: External Call Interface 

(IBM) 

ECL: EClectic Language 

ECL: Emitter Coupled Logic 



E

ECLF 

ECLF: Extended Common Log Format 

(Network) 

ECM: Electronic Control Module 

ECM: Electronic Counter Measures 

(Hardware) 

ECM: Endpoint Congestion Management 

(Network) 

ECM: Enterprise Commerce Management 

ECM: Enterprise Content Management 

ECM: Entity Coordination Management 

ECM: Error-Correction Mode 

ECMA: European Computer Manufacturing 

Association 


ECML: Electronic Commerce Modeling 

Language 

ECMP: Equal Cost Multipath Protocol 

(Network) 

ECN: Electronic Communications Network 

ECN: European Counter Network 

ECN: Explicit Congestion Notification 

(Network) 

ECNE: Enterprise Certified Netware Engineer 

(Novell) 

ECO: Engineering Change Order 

Hardware minor revisions, usually in the days of 

minicomputers, where a change wasn't made to the PCB 

layout (which would probably carry the major revision 

number/letter), e.g. to correct a problem found in operation 

and approved and recorded by HQ staff (Hardware) 

ECOM: Electronic Computer Originated Mail 

ECOOP: European Conference on Object 

Orientated Programming 

ECP: Enhanced Communication Protocol 

ECP: Extended Capabilities Port 

(Hardware) 

ECPA: Electronic Communication Privacy Act 

ECPP: Enterprise Collaborative Processing 

Portal 

ECR: Enterprise Content Repository 

ECR: Enterprise Customer Resource 

eCRM: Electronic Customer Relationship 

Management 

A complete view of customer interactions, stored in 

electronic format for review and data manipulation 

(Software) 

ECS: Element Construction Set 

Java API for generating elements for various markup 

languages it directly supports HTML 4.0 and XML, but can 

easily be extended to create tags for any markup language 

(Software) 

ECS: Enhanced Chip Set 

ECS: Enterprise Control Station 

ECS: Event Communication Service 

ECSA: Exchange Carriers Standards 

Association 


EDM 

ECTF: Enterprise Computer Telephony Forum 

Brings together the best industry thinkers on the planet to 

deliver on a shared vision in the computer telephony 

industry to allow for open access to a diversity of 

communications products and services. See also 

http://www.ectf.org/ (Organizations) 

ECTL: Electronic Communal Temporal Lobe 

ECTS: European Consumer Trade Show 

ECU: Eisa Configuration Utility 

ED: End Delimiter 

ED: Enhanced Density 

ED: Erase Display 

ED: Extra-high Density 

2.88 MB floppy disk (Hardware) 

EDA: Electronic Design Automation 

EDA: Embedded Document Architecture 

EDAC: Electromechanical Digital Adapter 

Circuit 

EDB: Embedded DataBase 

EDB: External Data Bus 

(Hardware) 

EDC: Easy Data Communication 


EDC: Electronic Digital Computer 

EDC: Enhanced Data Correction 

EDC: Error Detection and Correction 

EDC: Error Detection Code 

EDDC: Extended Distance Data Cable 

EDE: Encrypt-Decrypt-Encrypt 

EDFA: Erbium Doped Fibre Amplifier 


EDGAR: Electronic Data Gathering, Analysis 

and Retrieval 

EDGE: Enhanced Data-rate for Gsm Evolution 

EDI: Electronic Data Interchange 

EDI: Electronic Document Interchange 

(DEC) 

EDID: Extended Display Identification Data 

(Hardware) 

EDIF: Electronic Design Interchange Format 

A standard file format for exchanging CAD data. 

EDIFACT: Electronic Data Interchange For 

Administration Commerce and Transport 

EDIINT: Electronic Data Interchange- 

Internet INTegration 

Standard detailing a set of protocols and requirements to 

package, secure, communicate and authenticate 

transactions over the Internet in an interoperable manner 

EDIT: Emulsion Direct Imaging Technology 

(Hardware) 

EDL: Edit Decision List 

EDLC: Ethernet Data Link Control 

EDM: Electronic Document Management 

EDM: Engineering Data Management 

EDM: Enterprise Data Model 

Data warehousing 

EDM: Environmental Descriptor Manager 

(Databases) 


E

EDMS 

EDMS: Electronic Document Management 

System 

EDO: Extended Data Output 

Memory manufacturing technology (Hardware) 

EDOC: Enterprise Distributed Object 

Computing 

EDODRAM: Extended Data Out Dynamic 

Random Access Memory 

(Hardware) 

EDOS: Enhanced Disk Operating System 

Mmeory manufacturing technology 

EDP: Electronic Data Processing 

EDP: Extended Dos Partition 


EDPM: Electronic Data Processing Machine 

EDPS: Electronic Data Processing System 

EDR: External Developer Release 

EDRAM: Extended Dynamic Random Access 

Memory 

(Hardware) 

EDS: Electronic Data Systems 

EDSAC: Electronic Delay Storage Automatic 


EDSRA: Earth Data System Reference 

Application 

EDT: Eastern Daylight Time 


EDTV: Enhanced Definition TeleVision 

(Hardware) 

EDU: Engine Dispatchable Unit 

(Databases) 

EDVAC: Electronic Discrete Variable 

Automatic Computer 

First stored-program digital computer 

EDW: Enterprise Data Warehouse 

EE: Extended Edition 

(IBM) 

EEA: Extended Enterprise Applications 

(Software) 

EEC: Extended Error Correction 

EEG: ElectroEncephaloGram 

EEI: Equipment to Equipment Interface 

EEL: Epsilon Extension Language 

EEM: External Expansion Module 

EEMA: European Electronic Messaging 

Association 


EEMAC: Electrical & Electronic MAnufacturers 

of Canada 

EEMS: Enhanced Expanded Memory 

Specification 


EEP: Entry Exit Procedure 

EEPRO: Ethernet Express PRO 

Network interface card (Hardware) (Intel) 

EEPROM: Electrically Erasable Programmable 

Read Only Memory 

A non-volatile PROM that may be written to as well as read 

from. (Hardware) 


EES: Escrow Encryption Standard 

EESP: Enterprise Extended Services Portal 

EET: Eastern European Time 


EIAJ 

EF: Expedited Forwarding 

A Per-Hop Behavior in the Differentiated Service standard, 

used to create a virtual leased line service (Network) 

EFA: Extended File Attribute 

EFCI: Explicit Forward Congestion Indication 

EFF: Electronic Frontier Foundation 

EFI: Electromechanical Frequency 

Interference 

EFI: Electronics For Imaging 

EFI: Extensible Firmware Interface 

Specification that defines a new model for the interface 

between operating systems and platform firmware 

EFI: External Functional Interface 

EFIGS: English, French, Italian, German, 

Spanish 

EFL: Emitter Follower Logic 

(Hardware) 

EFM: Eight to Fourteen Modulation 

EFM: Ethernet First Mile 

(Network) 

E-FORM: Electronic FORM 

EFS: Encrypting File System 


EFSP: Enhanced Fax Service Provider 

EFT: Electronic Funds Transfer 

EFT: Euro FileTransfer 

EFTPoS: Point Of SaleElectronic Funds 

Transfer at Point Of Sale 

EFTS: Electronic Funds Transfer at Point Of 

Sale 

EGA: Enhanced Graphics Adapter 

Video specification for a resolution of 640x350 pixels in 


EGP: Exterior Gateway Protocol 

A reachability routing protocol used by gateways in a twolevel 

internet. EGP is used in the Internet core system. 

(Network) 

EGREP: Extended Global Regular Expression 

Print 

EGS: Enhanced Graphics System 

EGSM: Extended Global System for Mobile 

communications 


EHCI: Enhanced Host Controller Interface 

(Hardware) 

EHF: Encoding Header Field 

EHF: Extreme High Frequency 

EHLLAPI: Emulator High-Level Language 

Application Programming Interface 

EIA: Electronics Industries Association 


EIAJ: Electronic Industry Association of 

Japan 



E

EiB 

EiB: ExbIByte 

Unit of measurement, introduced by the International 

Electrotechnical Commission (IEC), correspondig to 1024 

PiB 

EICAVR: European Institute for Computer 

Anti-Virus Research 

EIDE: Enhanced Integrated Drive (or Device) 

Electronics 

Bus architecture (Hardware) 

EIGRP: Enhanced Interior Gateway Routing 

Protocol 


EIM: Electronic Image Management 

EIO: Enhanced Input/Output 

EIP: Enterprise Information Portal 

(IBM) 

EIR: Equipment Identity Register 

A database containing a list of all valid IMEIs on the 

network (Communication) 

EIS: Enterprise Information System 

EIS: European Information System 

EIS: Executive Information System 

EISA: Extended Industry Standard 

Architecture 

PC bus architecture (Hardware) 

EISS: Europaeisches Institut für 

SystemSicherheit 

EITAAC: Electronic and Information 

Technology Access Advisory Committee 


EJB: Enterprise Java Bean 


EJC: Electronic Journal of Communication 

EKP: Enterprise Knowledge Portal 

(IBM) 

EL: ElectroLuminescent 

(Hardware) 

EL: Erase Line 

EL1: Extensible Language One 

ELAN: Emulated Local Area Network 

ELC: Embedded Linking and Control 

ELD: Electronic License Distribution 

ELEC: Enterprise Local Exchange Carrier 

ELF: Electronic Location Finder 

ELF: Executable and Linking Format 

(Software) 

ELF: Extremely Low Frequency 

(Hardware) 

ELH: Entity Life History 

ELI: Embedded Lisp Interpreter 

ELIC: Electronic Library Information Center 

ELINT: ELectronic INTelligence 

ELK: Extension Language Kit 

ELLIS: EuLisp LInda System 

ELM: ELectronic Mail 

(Network) 

ELOD: Erasable Laser Optical Disk 

ELP: Equational Logic Programming 


ELS: Entry Level System 

ELSA: ELektronische SAchen 

German hardware manufacturer (Hardware) 

ELSNET: European Language and Speech 

NETwork 

EM: ElectroMagnetic 

EM: Electronic Mail 

EM: EMphasized 

EM: End of Medium 

EM: Enterprise Management 

EM: Expanded Memory 

EM: Extensions Manager 

EMA: Electronic Mail Association 

EMA: Enterprise Management Architecture 

EMA: Enterprise Memory Architecture 


EMACS: Editing MACroS 

E-MAIL: Electronic MAIL 

EMB: Enhanced Master Burst 

EMB: Extended Memory Block 

EMBARC: Electronic Mail Broadcast to A 

Roaming Computer 

EMMA 

EMBM: Environment-Mapped Bump Mapping 

EMC: ElectroMagnetic Compatibility 

EMC: E-Mail Connection 

EMC: Emergency Management Card 


EMC: Enhanced Memory Chip 

EMC: Extended Math Coprocessor 

EMEA: Europe, Middle East and Africa 

EMF: Eclipse Modeling Framework 

Modeling framework and code generation facility for 

building tools and other applications based on a structured 

data model. See also http://www.eclipse.org/emf/ (Software) 

EMF: ElectroMagnetic Field 

EMF: Enhanced MetaFile 

File format for graphics (Microsoft) 

EMF: Extensible Message Format 

EMI: ElectroMagnetic Interference 

EMI: Enhanced Multilayer Image 

Cisco's multicast routing implentation permits any host to 

send a packet but only members of the multicast group to 

receive it if "EMI" is enabled on the Stack Master. 


EML: Element Management Layer 

EML: EMaiL 

Filename extension used by MS Outlook Express 


EMM: Expanded Memory Manager 

EMM: Extended Memory Management 

EMMA: European MultiMedia Award 

EMMA: Extensible MultiModal Annotation 

Markup language intended for use by systems that provide 

semantic interpretations for a variety of inputs, including 

but not necessarily limited to, speech, natural language 

text, GUI and ink input. See also 

http://www.w3.org/TR/emma/ 


E

EMMP 

EMMP: Enterprise Mission Management Portal 

EMO: Exchange Messaging Outlook 

EMP: ElectroMagnetic Pulse 

(Hardware) 

EMR: ElectroMagnetic Radiation 

EMR: Electronic Medical Record 

(Software) 

EMR: Enhanced Metafile Record 

EMS: Electronic Mail System 

EMS: Electronic Messaging Service 

EMS: Element Management System 

(Software) 

EMS: Energy Management System 

EMS: Enhanced Message Service 

EMS: Entrust Messaging Server 

(Security) 

EMS: Expanded Memory Specification 

(Software) 

EMSAPI: Extended Messaging Services 


EMSC: Electronic Mail Standards Committee 

EMT: Eastern Mediterranean Time 


EMV: Europay, Mastercard and Visa 

EMWAC: European Microsoft Windows nt 

Academic Centre 

EMX: Enterprise Messaging eXchange 

(Lotus) 

EN: Europa Norm 

ENA: Electronic Networking Association 

ENA: Extended Network Addressing 

ENC: ENCoded 


ENC: Enterprise Naming Context 

ENDC: European Network Design Center 

ENDEC: ENcoder/DECoder 

ENDS: END of Segment 

ENIAC: Electronic Numerical Integrator And 


First fully electronic digital computer 

ENL: EndNote Library 

File extension for EndNote Program used in bibliographies 

(Software) 

ENQ: ENQuiry 

ENS: Enterprise Network Services 

ENSS: Exterior Nodal Switching Subsystem 

ENT: Enterprise Network Tools 

EO: Europe Online 

EOA: End Of Address 


EOB: End Of Block 


EOC: End Of Character 

EOC: End Of Conversion 

EOD: End Of Data 

EOD: Erasable Optical Disk 


EPIC 

EOF: End Of File 

A particular character, usually a Control-D, that tells the 

system it has reached the end of the file. 

EOF: Enterprise Object Framework 


EOI: End Of Input 

EOI: End Of Interrupt 

EOI: End Or Identify 

EOJ: End Of Job 

EOL: End Of Line 

EOL: End Of List 

EOM: End Of Message 


EON: Edge Of Network 


EON: Extranet Object Network 

(Network) 

EOP: End Of Procedure 

EOR: Electro-Optical Reconnaissance 

EOR: Exclusive OR 

Also XOR 

EOS: Earth Observing System 

(NASA) 

EOS: Ecc On Simm 

(Hardware) 

EOS: Electrical OverStress 

Electrically overstressing and damaging a device or 

component by too much voltage or current (Hardware) 

EOS: End Of String 

EOS: Extended Operating System 

EOSDIS: Earth Observing System Data and 


(NASA) 

EOT: End Of Table 

EOT: End Of Tape 

(Hardware) 

EOT: End Of Text 

EOT: End Of Transmission 


EoU: Ease Of Use 

EOUG: European Oracle User Group 

EoVDSL: Ethernet Over Very high bit rate 

Digital Subscriber Line 


EP: ElectroPhotographic 

Laser printing technology (Hardware) 

EP: Exchange Provider 


EPA: Enhanced Performance Architecture 

EPA: Environmental Protection Agency 


EPAC: Enhanced Perceptual Audio Coder 

EPD: Early Packet Discard 

(Network) 

EPIC: Electronic Privacy Information Center 

EPIC: Explicitly Parallel Instruction 

Computing 


E

EPL 

EPL: Effective Privilege Level 

EPL: Electronic switching system 

Programming Language 

EPLD: Electrically Programmable Logic Device 

(Hardware) 

EPM: Enhanced editor for Presentation 

Manager 

(IBM) 

EPM: Enterprise Print Manager 

An OS/390 software solution for management of printers 

and print jobs in addition to the various printing functions. 

The host data, AFP as well as line data, are converted into 

printer data streams such as PCL5 and PostScript 

(Software) 

EPM: Enterprise Process Management 

(IBM) 

EPO: Electronic Public Offering 

EPOS: Electronic Point Of Sale 

Electronic cash registers and their software used in stores 

EPP: Enhanced Parallel Port 

(Hardware) 

EPRI: Electric Power Research Institute 


EPROM: Erasable Programmable Read Only 

Memory 

A non-volatile memory chip that is programmed 

after they it is manufactured. EPROMs differ from PROMs 

in that they can be erased (generally by exposing the 

semiconductor material to the ultraviolet light) and can be 

reprogrammed after having been erased. (Hardware) 

EPRPI: Enhanced Primary Rate Peripheral 

Interface 

EPS: Encapsulated PostScript 

A file format for graphics and text supported by several 

graphics drawing applications. (Adobe) 

EPSF: Encapsulated PostScript Files 

EPSI: Encapsulated PostScript Interchange 

A version of the encapsulated PostScript format that 

describes an image using a standard text file. (Adobe) 

EQD: English Query Domain 

Filename extension (Databases) (Microsoft) 

EQP: EQuiPment 

ER: Entity Relationship 

ER: Explicit cell Rate 

ER/RC: Extended Result/Response Code 

ERA: Extended Registry Attributes 

ERA/O: Embedded Remote Access Option 


ERAS: Electronic Routing and Approval 

System 

ERD: Emergency Repair Disk 

ERD: Entity-Relationship Diagram 

ERIC: Educational Resources Information 

Center 

ERIN: Environmental Resources Information 

Network 

ERLL: Enhanced Run Length Limited 

ERM: Enterprise Relationship Management 

ERM: Enterprise Resource Management 

(Software) 


ERM: Entity-Relationship Model 

ERMA: Electronic Recording Method, 

Accounting 

ERMS: Email Response Management System 

EROM: Erasable Read Only Memory 

EROS: Earth Resources Observation System 

ERP: Enterprise Resource Planning 

ERR: ERRor 

ERU: Emergency Recovery Utility 

(Microsoft) 

ES: Extended Services 

ES: Extra Segment 


ESA: Enterprise Systems Architecture 

(IBM) 

ESA: European Space Agency 


ESB: Enterprise Service Bus 

ESC: Eisa System Component 

ESC: ESCape 

ESC/P: Epson Standard Code for Printers 

(Epson) 

ESCD: Extended System Configuration Data 

ESCM: Extended Services Communications 

Manager 

(IBM) 

ESCON: Enterprise System CONnection 

Architecture (IBM) 

ESCSI: Embedded Small Computers System 

Interface 


ESD: Electronic Software Distribution 

ESD: ElectroStatic Discharge 

(Hardware) 

ESD: Emergency Startup Disk 


ESDF: Electronic Document Systems 

Foundation 

See www.edsf.org (Organizations) 

ESDI: Enhanced Small Device Interface 

ESDRAM: Enhanced Synchronous Dynamic 

Random Access Memory 

(Hardware) 

ESDS: Entry Sequenced Data Set 

ESE: Exchange Server Enterprise 

(Microsoft) 

ESE: Extensible Storage Engine 

Stores all active directory objects (Operating systems) 

(Microsoft) 

ESF: Extended SuperFrame 

ESI: Edge Side Include 

(Software) 

ESI: End System Identifier 

ESI: Enhanced Serial Interface 

Communication specification (Hayes) 

ESIS: End System to Intermediate System 

ESIS 


E

ES-IS 

ES-IS: End System to Intermediate System 

The International Organization for Standardization's Open 

Systems Interconnection (OSI) protocol by which end 

systems announce themselves to intermediate systems. 

ESM: Enterprise Security Manager 

Scalable security policy compliance and host-based 

vulnerability assessment tool (Software) (Symantec) 

ESM: Enterprise System Management 

ESM: European Satellite Multimedia 

ESM: External Storage Module 

A Sun external unit that contains disk or tape drives and 

that can be connected to a desktop SPARCstation system. 


ESMA: Extended Server Memory Architecture 


ESMD: Embedded Storage Module Disk 

ESMD: Enhanced Storage Module Device 

ESME: External Short Message Entity 


ESMR: Enhanced Specialized Mobile Radio 

ESMTP: Extended Simple Mail Transfer 

Protocol 

ESN: Electronic Security Number 

ESN: Electronic Serial Number 

ESN: Electronic Switched Network 

ESNET: Energy Sciences NETwork 

ESO: Equipment Superior to Operator 

(Net lingo) 

ESP: Emulation Sensing Processor 

ESP: Encapsulated Security Payload 

(Network) 

ESP: Enhanced Serial Port 

(Hardware) 

ESP: Enhanced Service Provider 

ESP: Enterprise System Platform 

ESP: Estimated Street Price 

ESP: Ethernet Serial Port 

ESP: Eudora Sharing Protocol 

ESP: Expert Searching and Pricing 

ESPRIT: European Strategic Program of 

Research and development in Information 

Technology 

ESR: Event Service Routine 

ESRB: Entertaining Software Rating Board 


ESRO: Efficient Short Remote Operation 

(Network) 

ESS: Electronic Switching System 

ESS: Enterprise Storage Server 

(IBM) 

ESS: Extended Service Set 


ESSID: Extended Service Set IDentifier 


EST: Eastern Standard Time 



ESTO: Equipment Superior To Operator 

When a computer seems to have a mind of its own. For 

example, when you watch it spam all 800 people in your 

contact list and you can't stop it (Net lingo) 

ESTT: E-mail Server Test Tool 

Ziff-Davis labs test suite for email servers 

ESU: ElectroStatic Unit 

ET: Enhancement Technology 

ETACS: Extended Total Access 

Communication System 

(IBM) 

ETANN: Electrically Trainable Analog Neural 

Network 

Chip (Intel) 

ETB: End of Transmission Block 

ETC: Electronic Toll Collection 

ETC: Enhanced Throughput Cellular 

Cellular modem protocol (AT&T) 

etc: Essential Text Configuration 

In any unix (and variants like linux) system the /etc 

directory (Operating systems) 

ETF: Enriched Text Format 

ETFTP: Enhanced Trivial File Transfer 

Protocol 

ETIS: European Telecommunications 

Information Service 

ETL: Extract, Transform and Load 

(Databases) 

ETLA: Extended Three Letter Acronym 

ETML: Extract, Transform, Move, and Load 

(Databases) 

ETOM: Electron-Trapping Optical Memory 

ETPL: Endorsed Tempest Products List 

ETR: Early Token Release 

ETR: Etsi Technical Report 

ETS: Econometric Time Series 

ETS: Ethernet Terminal Servers 

(Hardware) 

EUC 

ETS: European Telecommunications Standard 

ETSI: European Telecommunication 

Standards Institute 


ETTb: Ethernet To The Business 

Telecommunications carrier service providing Ethernet to 

a business subscriber. See also ETTh and ETTx. 


ETTh: Ethernet To The Home 


a home subscriber. See also ETTb and ETTx. 


ETTx: Ethernet To The X 


a business subscriber (ETTb) or home subscriber (ETTh). 

See also ETTb and ETTh. (Communication) 

ETX: End of TeXt 


EU: Execution Unit 

EUC: End User Computing 


E

EUC 

EUC: Extended Unix Code 

An encoding scheme that allows up to four codesets to 

coexist in one data stream. EUC supports one primary 

character set and three supplementary character sets. 


EUI: End-User Interface 

EULA: End User License Agreement 

EUNET: European Unix NETwork 

Euro CASE: EUROpean Council of Applied 

Sciences and Engineering 


EUUG: European Unix Users Group 


EUV: Extreme Ultra Violet 

(Hardware) 

EUVL: Extreme UltraViolet Lithography 

(Hardware) 

EVA: Economic Value Added 

EVE: Extensible Vax Editor 

EVGA: Extended Video Graphics Adapter 

EVGA: Extended Video Graphics Array 

EVLIW: Encapsulated Very Long Instruction 

Word 

(Hardware) 

EVM: Embedded Virtual Machine 

EVS: Economic Value Sourced 

EW: Electronic Warfare 

EWAN: Emulator Without A Name 

EWN: Enterprise Wide Network 

A computer network that links all the computers in an 

organization (Network) 

EWOS: European Workshop for Open Systems 

The Open Systems Interconnection (OSI) Implementors 

workshop for Europe. 

EWS: Early Warning Status 

System that alerts the host system if drive performance 

approaches unacceptable reliability levels (Hardware) 

EWS: Employee Written Software 

(IBM) 

ExCA: EXchangeable Card Architecture 

(Intel) 

EXE: Executable 


EXE2BIN: EXEcutable To BINary 

EXIF: EXchangeable Image File format 

Standard for storing interchange information in image files, 

especially those using JPEG compression. Most digital 

cameras now use the EXIF format. See also 

http://www.exif.org/ 

EXP: EXPonent 

EXT: EXTernal 

EXTRA: EXecutionTRace Analyzer 

EXTRN: EXecution TRace Analyzer 

EXUG: European X Users Group 

E-ZINE: Electronic magaZINE 

f: femto 



F 

F/T: Full Time 

F/V: Frequency to Voltage converter 

(Hardware) 

FBGA 

FA: Foreign Agent 

Node in a mobile IP network that enables roamed users to 

register on the foreign network. The FA will communicate 

with the HA (Home Agent) to enable IP datagrams to be 

transferred between the home network and the roamed user 

on the foreign network (Network) 

FAB: FABrication plant 

Usually referred to chip fabrication plants 

FAC: File Access Code 

FACE: Framed Access Command Environment 

FACS: Facility fir Access Control and Security 

FAIL: Fast Artificial Intelligence Language 

FAMOS: Floating gate Avalanche Metal Oxide 

Semiconductor 

(Hardware) 

FANS: Future Air Navigation System 

FAP: File Access Protocol 

FAP: Format And Protocol 

FAPI: Family Application Programming 

Interface 

FAQ: Frequently Asked Question 

FAR: Fixed Alternative Routing 

FARE: Film Automatic Retouching and 

Enhancement 

Film scanner technology (Hardware) (Canon) 

FARNET: Federation of American Research 

NETworks 


FASIC: Function and Algorithm-Specific 

Integrated Circuit 

FASMI: False Analysis of Shared 

Multidimensional Information 

FAST: First Application System Test 

FAT: File Allocation Table 


FAT12: File Allocation Table 12 bits 

Every entry in the table is 12 bits wide (Operating 








FAX: FACSimile 

Also a file name extension 

FAZAM: Full Armor Zero AdMinistration 

FB: Fiber optic Backbone 

FBA: Fair Buffer Allocation 

(Network) 

FBC: Find By Content 

FBGA: Fine Ball-Grid Array 

Integrated circuit (IC) packaging that uses half-spherical 



E 

F

FBRAM 

FBRAM: Frame Buffer Random Access Memory 

A special type of Dynamic RAM (DRAM) used in highspeed 

frame buffers. Similar to Video RAM (VRAM), 

FBRAM is specifically designed for use in high-speed frame 

buffers and graphics accelerators. (Hardware) 

FC: Fiber Channel 

(Hardware) 

FC: Frame Control 

FC: Functional Component 

(Software) 

FC/AL: Fiber Channel/Arbitrated Loop 

FC/EL: Fiber Channel/Enhanced Loop 

FCA: Flow Control Acknowledge 

FC-AL: Fiber Channel - Arbitrated Loop 

(Hardware) 

FCB: File Control Block 

FCBS: File Control BlockS 

FCC: Federal Communications Commission 


FCC: File Carbon Copy 

FCCSET: Federal Coordinating Council for 

Science, Engineering and Technology 

FC-EL: Fiber Channel - Enhanced Loop 

(Hardware) 

FCFS: First Come, First Served 

Process or thread scheduling (Operating systems) 

FCI: Fibre Channel Interface 

FCI: Flow Control Indicator 

FCI: Flux Changes per Inch 

FCIF: Flexible Computer Interface Form 


FCIF: Full Common Intermediate Format 

Video Teleconferencing standard 

FCL: Fibre Channel Loop 

FCO: First Class Object 

(Software) 

FCO: Flow Control Operator bits 

FCP: Fibre Channel Protocol 

FC-PGA: Flip Chip-Pin Grid Array 

IC pins organization (Hardware) 

FCPH: Fibre Channel PHysical and signaling 

interface 

FCR: FIFO Control Register 

FCRAM: Fast-Cycle Random Access Memory 

(Hardware) 

FCS: Fiber Channel Standard 

FCS: First Customer Ship 

FCS: Frame Check Sequence 

The standard 16-bit cyclic redundancy check used for 

HDLC and frame relay frames. The FCS detects bit errors 

occurring in the bits of the frame between the opening flag 

and the FCS (Communication) 

FD: Flat Display 


FD: Floppy Disk 

FD: Full Duplex 


FDBMS: Federated Database Management 

System 

(Databases) 

FDC: Floppy Disk Controller 

(Hardware) 

FDCN: Financial Data Cast Network 

FDCT: Forward Discrete Cosine Transform 

(Software) 

FDD: Floppy Disk Drive 

(Hardware) 

FDDI: Fiber Digital Device Interface 

(Hardware) 

FDDI: Fiber Distributed Data Interface 

An emerging high-speed networking standard. The 

underlying medium is fiber optics, and the topology is a 

dual-attached, counter-rotating token ring (Hardware) 

FEC 

FDDITPPMD: Fiber Distributed Data Interface 

Twisted Pair-Physical layer, Medium 

Dependent 

FDE: Full Duplex Ethernet 

FDF: Forms Data Format 

(Adobe) 

FDFS: File Descriptor File System 

A pseudo file system that provides explicit names for 

opening files using file descriptors. (Operating systems) 

FDI: Feeder Distribution Interface 

Similar to a DSLAM Cross-Connect box (Communication) 

FDII: Feeder Distribution Interface 

Interconnect 


FDL: File Definition Language 

FDM: Frequency-Division Multiplexing 

FDMA: Frequency-Division Multiple Access 

FDOCA: Formatted Data Object Content 

Architecture 

(IBM) 

FDSL: Fractional Digital Subscriber Line 


FDSL: Free Digital Subscriber Line 


FDTE: Female Data Terminal Equipment 

RS-232 adapter (Hardware) 

FDx: Full DupleX 


FE: Family Edition 

(Software) 

FE: Functional Entity 

FEA: Finite Element Analysis 

Engineering stress analysis with a computer (Software) 

FEA: Functional Entity Action 

FEAR: False Emotions Appearing Real 

(Net lingo) 

FEBE: Far End Block Error 

FEC: Fast EtherChannel 


FEC: Fetch Execute Cycle 

FEC: Forward Error Correction 

Sending redundant data so that if data loss occurs, data 

recovery is possible without retransmission 



F

FECN 

FECN: Forward Explicit Congestion 

Notification 

A bit sent by a frame relay network to notify an interface 

device (DTE) that congestion avoidance procedures should 

be initiated by the receiving device (Communication) 

FED: Field Emitting Display 

(Hardware) 

FEFO: First-Ended, First-Out 

FEK: File Encryption Key 


FEM: Finite Elements Method 

FEP: Front End Processor 

FEPI: Front End Programming Interface 

FEPROM: Flash Erasable Programmable Read 

Only Memory 

(Hardware) 

FER: Forward Error Correction 

FeRAM: FErroelectric Random Access Memory 

(Hardware) 

FERC: Federal Energy Regulatory Commission 


FESDK: Far East Software Development Kit 

(Microsoft) 

FET: Field-Effect Transistor 

A type of transistor in which the flow of current between the 

source and the drain is modulated by application of a 

transverse electric field between two gate electrodes. 

(Hardware) 

FF: Flip-Flop 

(Hardware) 

FF: ForFait 

Used in online gaming (Games) 

FF: Form Feed 

A printer command that tells a printer to move to the top of 

the next page. In the ASCII character set, the form-feed 

character has the decimal value 12. Also known as the 

page eject character. 

FF: Friendly Fire 

Used in online First Person Shooter (FPS) games (Games) 

FFA: Free For All 

FFDC: First Failure Data Capture 

(IBM) 

FFI: Foreign Function Interface 

A facility make calls from one computer language to 

another (Software) 

FFIF: File Format for Internet Fax 

FFJ: Forte For Java 

Java integrated development environment (IDE) (Software) 

(Sun) 

FFOL: Fddi Follow-On-LAN 

FFS: Fast FileSystem 

FFS: Fast Filing System 

FFS: For F***'s Sake 

(Net lingo) 

FFST: First Failure Support Technology 

(IBM) 

FFT: Fast Fourier Transform 

FFT: Final Form Text 

(IBM) 

FG: Floating Gate 


FLD 

FGREP: Fixed Global Regular Expression Print 

FH: Frequency Hopping 


FHS: Fan Heat-Sink 

FHS: File Hierarchy Standard 


FHSS: Frequency Hopping Spread Spectrum 


FIA: File Integrity Assessment 

FIB: Forwarding Information Base 

FICON: FIber CONnection 

(IBM) 

FID: Filtering IDentifier 


FIF: Fractal Image Format 

FIFO: First In First Out 

(Hardware) 

FIFOFS: First In First Out File System 

Named pipe files that give processes common access to 

data. (Operating systems) 

FILO: First In Last Out 

FIN: Functional Identification Number 

FIOC: Frame Input/Output Controller 

FIP: Facility Interface Processor 

FIP: File Processor Buffering 

FIPA: Foundation for Intelligent Physical 

Agents 


FIPS: Federal Information Processing 

Standard 

The FIPS PUB is the National Bureau of Standards’ guide 

to the standards it issues. 

FIR: Fast InfraRed 

FIR: Finite Impulse Response 

FIRST: ForschungsInstitut fër 

Rechnerarchitektur und SoftwareTechnik 

FIRST: Forum of Incident Response and 

Security Teams 

FIS: Frontline Information System 

FIST: ForschungsInstitut für 

Rechnerarchitektur und SoftwareTechnik 

FITS: Flexible Image Transport System 

FIU: Fingerprint Identification Unit 

(Hardware) 

FIX: Federal Internet eXchange 

FK: Foreign Key 

(Databases) 

FL: Fiberoptic Link 

FLA: Five Letters Acronym 

FLA: Four Letters Acronym 

FLAC: FLorida Automatic Computer 

Early 1950's digital computer used at Cape Canaveral 

FLACC: Full Level Algol Checkout Compiler 

FLAG: Fiber-optic Link Around the Globe 

(Network) 

FLC: Ferroelectric Liquid Crystal 

FLD: FieLD 


F

FLEA 

FLEA: Four Letter Extended Acronym 

FLGA: Fine Land Grid Array 

Integrated circuit (IC) packaging that uses small flat 


FLL: Foxpro Link Library 

(Microsoft) 

FLOPS: FLoating-point Operations Per Second 

A measure of the speed at which a computer can operate. 

(Hardware) 

FLTK: Fast Light Toolkit 

Pronounced "fulltick", is a cross-platform C++ GUI toolkit 

for UNIX/Linux (X11), Microsoft Windows® and MacOS X. 

FLTK provides modern GUI functionality without the bloat 

and supports 3D graphics via OpenGL and its built-in 

GLUT emulation (Software) 

FM: Fault Management 

A series of information flows at the physical and ATM layer 

designed to identify the location and cause of a fault within 

the network (Communication) 

FM: Frequency Modulation 

FMA: Fused Multiply-Add 

CPU instruction type 

FMD: Fluorescent Multilayer Disk 

(Hardware) 

FMD-ROM: Fluorescent Multilayer Disk - Read 

Only Memory 

(Hardware) 

FMH: Function Management Header 

FMRI: Functional Magnetic Resonance 

Imaging 

FMS: File Management System 

FMT: ForMaT 

FMV: Full Motion Video 

FNC: Federal Networking Council 

The body responsible for coordinating networking needs 

among U.S. federal agencies. (Organizations) 

FNC: Frogans Network Certificate 


FNI: File Not Identified 

Used primarily for software scanning applications (asset 

management) (Software) 

FNS: Frogans Network System 


FNSL: Frogans Network System Language 


FNT: FoNT 


FO: F*** Off 

(Net lingo) 

FO: Fiber Optic 

FO: Formatting Object 

FOA: Formatted Object Authoring 

Java application that gives users a graphical interface to 

author XSL-FO stylesheets. With FOA you can generate 

pages and page sequences, and fill them with content 

provided from one or more XML files (Software) 

FOAD: F*** Off And Die 

(Net lingo) 

FOC: Fiber Optic Cable 

FOCUS: FOrum of Control data USers 

FOD: Fax On Demand 


FOD: Flexible Optical Disk 

FOG: First Osborne Group 

FOIP: Fax Over Internet Protocol 

FOIRL: Fiber Optic Inter Repeater Link 

FOLDOC: Free On-Line Dictionary Of 

Computing 

FPI 

FOLED: Flexible Organic Light Emitting Diode 

(Hardware) 

FOMAU: Fiber Optic Media Access Unit 

FON: Fiber Optics Network 

FON: FONt 


FOOBAR: Ftp Operation Over Big Address 

Records 

FOOT: Forum for Object Oriented Technology 

FOP: Formatting Objects Processor 

Output-independent print formatter driven by XSL 

formatting objects. It is a Java application that reads a 

formatting object tree and then renders the resulting pages 

to a specified output. See http://xml.apache.org/fop/ 

(Software) 

FOR: FORtran 


FORTRAN: FORmula TRANsactor 


FOSE: Federal Office Systems Exposition 

FOSI: Format Option Specification Instance 

FOSSIL: Fido/Opus/Seadog Standard 

Interface Layer 

FOT: Fiber Optic Transceiver 

FOX: Field Operational X.500 

FP: Floating Point 

FP: Foundation Profile 

(Software) 

FP: Frame Pointer 

Processor register (Hardware) 

FPA: Floating Point Accelerator 

A device (board or integrated circuit - IC) that speeds up 

floating-point calculations. (Hardware) 

FPA: Function Point Analysis 

A method used to determine the complexity of a program 

(Software) 

FPC: Floating Point Calculation 

FPC: Floating Point Coprocessor 

FPCE: Floating-Point C Extension 

Specification 

FPD: Flat Panel Display 

(Hardware) 

FPD: Full Page Display 

(Hardware) 

FPDU: Ftam Protocol Data Unit 

FPE: Floating Point Engine 

FPGA: Field Programmable Gate Array 

An integrated circuit containing an array of logic circuits in 

which the connections between the individual circuits can 

be programmed after manufacture, typically at the time of 

installation (in the field). (Hardware) 

FPI: Floating-Point Interface 

FPI: Formal Public Identifier 


F

FPIM 

FPIM: Fax Profile for Internet Messaging 

Defines how fax messages can be encoded as SMTP/MIME 

messages (Communication) 

FPLA: Field Programmable Logic Array 

An array of logic elements. Its interconnections are 

programmable after manufacture (Hardware) 

FPLMTS: Future Public Land Mobile 

Telecommunications System 

FPLS: Field Programmable Logic Sequencer 

(Hardware) 

FPM: Fast Packet Multiplexing 

A multiplexing technique that sends data packets over the 

network and requires error detection/correction only at the 

destination node (Communication) 

FPM: Fast Page Mode 

(Hardware) 

FPMPMI: Flat Panel Monitor Physical 

Mounting Interface 

(Hardware) 

FPNW: File and Print services for NetWare 


FPO: Frame Pointer Omission 

Technique that gives a debugger enough information to find 

the next function information on the stack without using 

frame pointers (Software) 

FPP: Fixed Path Protocol 

FPP: Floating Point Processor 

FPR: Floating-Point Register 

FPS: Fast Packet Switching 

FPS: Favorite Picture Selection 

FPS: First Person Shooter 

Game genre (Games) 

fps: Frames Per Second 

Motion images reproduction speed 

FPSE: FrontPage Server Extensions 


FPT: Forced Perfect Termination 

FPU: Floating-Point Unit 

(Hardware) 

FPX: FlashPiX 

Filename extension (Kodak) 

FQDN: Fully Qualified Domain Name 

(Network) 

FRAD: Frame Relay Access Device 

FRAD: Frame Relay Assembler/Disassembler 

FRAG: FRAGment 

FRAM: Ferroelectric Random-Access Memory 

FRAP: Frame Relay Access Probe 

(Network) 

FRC: Frame Rate Control 

(Hardware) 

FRC: Functional Redundancy Checking 

FRED: Fair Random Early Detection 

A variation of Random Early Detection (RED) (Network) 

FRED: FRame EDitor 

FRED: FRont-End to Dish 

FRF: Floating point Register File 


FSMO 

FRF: Frame Relay Forum 

An association of corporate members consisting of 

vendors, carriers, users and consultants committed to the 

implementation of Frame Relay in accordance with national 

and international standards (Organizations) 

FRICC: Federal Research Internet 

Coordinating Committee 

Now replaced by the Federal Networking Council (FNC). 


FRL: Frame Representation Language 

FRM: Forward Resource Management 

FRPI: Flux Reversals Per Inch 

FRR: Functional Recovery Routine 

FRS: Family Radio Service 

Wireless communication and networking service 


FRS: File Record Segment 

FRS: File Replication Service 


FRS: Flexible Route Selection 

FRSM: Frame Relay Service Module 


FRU: Field-Replaceable Unit 

An assembly replaced in its entirety when any one of its 

components fails. (Hardware) 

FRUNI: Frame Relay User Network Interface 

(Network) 

FS: File Separator 

FS: File System 

FS: Frame Status 

FSA: Fluidic Self-Assembly 

LCD manufacturing technology (Hardware) 

FSAA: Full-Scene Anti-Aliasing 

(Hardware) 

FSAG: Free Software Association of Germany 

FSAM: Federated Storage Area Management 

A naturally scalable environment of pooled, federated (i.e., 

available when needed), modular, multivendor storage 

resources (HP) 

FSB: Front Side Bus 

The bus within a microprocessor that connects the CPU 

with main memory (Hardware) 

FSCK: File System Consistency checK 

FSD: File System Driver 


FSDL: Frogans Slide Description Language 


FSE: Full Screen Editor 

FSF: Free Software Foundation 


FSIOP: File System Input/Output Processor 

(Hardware) 

FSK: Frequency-Shift Keying 


FSL: Function Selection via the Line 

Created by I-Data to support special printing needs 

FSM: Finite-State Machine 

FSMO: Flexible Single Master Operation 



F

FSN 

FSN: Full Service Network 

FSP: Fax Service Provider 

FSP: File Service Protocol 

FSP: Full Service Provider 

FSQ: Flow Service Quality 

FSR: Free System Resources 

FSR: Full Scale Range 

FSS: Fast System Switch 

FSS: Field Support Service 

A group of technical engineers providing short-term 

assistance and product knowledge to customers that are 

deploying, developing, and maintaining Lotus environments 

(Lotus) 

FST: Finite State Technology 

(Software) 

FST: Flat Square Tube 

(Hardware) 

FST: French Summer Time 


FSTN: Film-compensated SuperTwisted 

Nematic 


FT: Fault Tolerant 

FT: Field Test 

FTA: Floptical Technology Association 

FTAM: File Transfer Access and Management 

The International Organization for Standardization's Open 

Systems Interconnection (OSI) remote file service and 

protocol. (Network) 

FTAM: File Transfer and Access Method 

FTC: Federal Trade Commission 


FTE: Fault-Tolerant Ethernet 

(Network) 

FTFM: F*** The F***ing Manual 

(Net lingo) 

FTL: Flash Transition Layer 

(Intel) 

FTM: Flat Tension Mask 

FTOS: File Transfer Osi Support 

FTP: File Transfer Protocol 

The Internet protocol (and program) used to transfer files 

between hosts. (Network) 

FTP: Foiled Twisted Pair 

FTPD: File Transfer Protocol Daemon 

FTR: Full Text Retrieval 

FTS: Federal Telecommunication System 

FTS: Fidonet Technical Standard 

FTS: Full Text Search 

FTSC: Fidonet Technical Standard Conference 

FTTB: Fiber To The Basement 

FTTC: Fiber To The Curb 

FTTH: Fiber To The Home 


FTTN: Fiber To The Neighborghood 

FTTP: Fiber To The Premise 

(Network) 


FTX: Fault Tolerant uniX 

FUBAB: F***ed Up Beyond All Belief 

(Net lingo) 

FUBAR: F***ed Up Beyond All Recognition 

(Net lingo) 

FUD: Fear, Uncertainty, Doubt 

FUEL: Fatwire UpdateEngine Library 

(Software) 

FUI: File Update Information 

FUUG: Finnish Unix User Group 


FVT: Full Video Translation 

FW: FirmWare 

FWH: Firmware Hub 


FWIW: For What It's Worth 

(Net lingo) 

FWT: French Winter Time 


FWTK: FireWall ToolKit 

(Security) 

FXO: Foreign eXchange Office 

An FXO interface connects to the Public Switched 

Telephone Network's (PSTN) central office and is the 

interface offered on a standard telephone (Hardware) 

FXP: File eXchange Protocol 

GAL 

FXS: Foreign eXchange Station 

An FXS interface connects directly to a standard telephone 

and supplies ring, voltage, and dial tone (Hardware) 

FXU: FiXed point Unit 

FY: Financial Year 

FY: Fiscal Year 

FYI: For Your Information 

(Net lingo) 

G: Giga 


G.SHDSL: Giga Single-pair High bit rate 

Digital Subscriber Line 


G/L: General Ledger 

G2G: Got To Go 

(Net lingo) 

G 

G2H: Gilat-To-Home 

Two-way broadband satellite access 

G4U: Good For yoU 

(Net lingo) 

GA: General Availability 

GAAP: Generally Accepted Accounting 

Principles 

GAC: Global Assembly Cache 

Microsoft .NET assembly cache (Software) (Microsoft) 

GAIA: Gui Application Interoperability 

Architecture 

GAIN: German Advanced Integrated Network 

GAL: Generic Array Logic 

(Hardware) 


F 

G

GAL 

GAL: Global Address List 

GALPAT: GALlopping PATtern 

Memory test technique 

GALSA: Governed Architectures of Large 

Systems of Agents 

GAM: Global Allocation Map 

(Databases) 

GAN: GALloping PATtern 

GAN: Global Area Network 

(Network) 

GAP: Generic Access Profile 

GAPI: Gateway Application Programming 

Interface 

GARO: Graphics Art language with Raster 

Operations 

Printer language (Canon) 

GARP: Generic Attribute Registration Protocol 


GART: Graphic Address Remapping Table 

(Hardware) 

GATT: Graphics Address Translation Table 

Gb: GigaBit 

GB: GigaByte 

1024 megabytes 

GBDE: Geom Based Disk Encryption 

Strong cryptographic facility for denying unauthorised 

access to data stored on a "cold" disk for decades and 

longer. GBDE operates on the disk(-partition) level 

allowing any type of file system or database to be 

protected (Operating systems) 

GBIC: GigaBit Interface Converter 

A transceiver that converts between electrical and optical 

signals for high-speed networking (Hardware) 

GBP: Group Buffer Pool 

(Databases) 

Gbps: Giga Bits Per Second 

Transfer Speed (Communication) 

GBps: Giga Bytes Per Second 


GC: Global Catalog 

Active directory's caching system (Operating systems) 

GC: Graphics Context 

The storage of various information for graphics output, 

such as foreground pixel, background pixel, line width, 

clipping region, and so on. (Operating systems) 

GCA: General Communications Architecture 

GCC: Gnu C Compiler 

(Software) 

GCCD: Glass-passivated Ceramic Chip Diode 

GCL: Graphics Command Language 

GCOS: General Comprehensive Operating 

System 

GCR: Group Coded Recording 

(Hardware) 

GCRA: Generic Cell Rate Algorithm 

GCS: Group Control System 

GD: God Damn 

(Net lingo) 

GDA: Global Data Area 


GDA: Global Directory Agent 

GDA: Gnome Data Access 

GDAP: Government Document Application 

Profile 

GDB: Gnu DeBugger 

(Software) 

GDBM: Gnu DataBase Manager 

GDD: Gesellschaft für Datenschutz und 

Datensicherung 

GDDM: Graphical Data Display Manager 

(Software) 

GDG: Generation Data Group 

(IBM) 

GDI: Graphics Device Interface 


GDLC: Generic Data Link Control 

(IBM) 

GDMO: Guidelines for the Definition of 

Managed Objects 

GDOS: Graphics Device Operating System 

GDP: Graphic Draw Primitive 

GDS: General Data Stream 

GDS: Global Directory Service 

GDT: Geometric Dimensioning and 

Tolerancing 

GDT: Global Descriptor Table 


GDT: Graphics Development Toolkit 

GE: Greater than or Equal 

(Software) 

GEAR: Gigabyte Enhanced Agp Riser 

Used to provide AGP support for PCI-E motherboards 

(Hardware) 

GECOS: General Electric Comprehensive 

Operating System 

GFLOPS 

GEF: Graphical Editor Framework 

Allows developers to take an existing application model 

and easily create a rich graphical editor (Software) 

GEIS: General Electric Information Service 

GEM: Global Enterprise Manager 

GEM: Grain Equalization and Management 

Film scanner technology 

GEM: Graphics Environment Manager 

(Software) (Digital Research) 

GENIE: General Electric Network for 

Information Exchange 

GEO: Geosynchronous Earth Orbit 

GEOS: Graphic Environment Operating System 

GET: Get Execute Trigger 

GFC: Generic Flow Control 


GFDL: Gnu Free Documentation License 

(GNU) 

GFI: General Format Identifier 

GFI: Ground-Fault Interceptor 

GFLOPS: Giga FLoating point Operations per 

Second 

Processing speed 


G

GFP 

GFP: Global Functional Plane 

GFS: Grandfather, Father, Son 

Backup methodology 

GFSK: Gaussian Frequency-Shift Keying 

GFTD: Gone For The Day 

(Net lingo) 

GFU: Good For yoU 

(Net lingo) 

GFY: Go Fuck Yourself 

(Net lingo) 

GFY: Good For You 

(Net lingo) 

GG: Good Game 

Said during online play (Games) 

GGP: Gateway to Gateway Protocol 

GGP: Gotta Go Pee 

(Net lingo) 

GGSN: Gateway Gprs Support Node 

Gateway between the GPRS network and public data 

networks such as IP and X.25. GGSNs also connect to 

other GPRS networks to facilitate GPRS roaming 


GH: Getting Hard 

(Net lingo) 

GHTSTN: Guest Host Technique SuperTwisted 

Nematic 

GHz: GigaHertZ 

GI: Gesellschaft für Informatik 

GIAC: Global Information Assurance 

Certification 

Certification programs designed to serve the people who 

are or will be responsible for managing and protecting 

important information systems and networks. See also 

http://www.giac.org/ 

GiB: GibIByte 



MiB 

GID: Group IDentifier 

The number used by the system to control access to 

accounts owned by other users. (Operating systems) 

GIF: Graphical Interchange Format 

File format for bitmapped images (CompuServe) 

GIGO: Garbage In, Garbage Out 

GII: Global Information Infrastructure 

GILS: Government Information Locator 

Service 

GIMP: Gnu Image Manipulation Program 

Freely distributed piece of software suitable for such tasks 

as photo retouching, image composition and image 

authoring. See www.gimp.org (Software) 

GIMPS: Great Internet Mersenne Prime 

Search 

GINA: Graphical Identification aNd 

Authentication 

GIOP: General Inter-Orb Protocol 

Gips: Giga Instructions Per Second 

GIS: Geographic Information System 

A graphic application using a database of specialized 

information, such as geographical and demographic data. 

(Software) 


GIS: Global Information Solutions 

(AT&T) 

GIX: Global Internet eXchange 

GJ: Good Job 

(Net lingo) 

GKMP: Group Key Management Protocol 

(Security) 

GOAD 

GKS: Graphical Kernel System 

An international standard 2-D graphics library consisting 

of a set of defined graphic primitives and a tool set for 

application developers. 

GL: Graphics Language 

(Software) 

GLA: Good Luck All 

Used in online gaming (Games) 

GLIS: Global Land Information System 

GLM: General Linear Models 

GLOBE: Global Learning by Observations to 

Benefit the Environment 

GLTY: Good Luck To You 

(Net lingo) 

GLUT: openGL Utility Toolkit 

Is a window system independent toolkit for writing OpenGL 

programs. It implements a simple windowing application 

programming interface (API) for OpenGL (Software) 

GLY: GLossarY 


GM: General Midi 

GMCH: Graphics and Memory Controller Hub 


GMDI: Gigabit Media-Dependent Interface 

GMI: Generic Management Information 

GMII: Gigabit Media Independent Interface 

(Network) 

GML: Generalized Markup Language 

GMP: Global Mobile Professional 

GMR: Giant Magneto-Resistive 


GMRAE: Geometric Mean Relative Absolute 

Error 

GMRP: Garp Multicast Registration Protocol 

It allows a device to declare membership of a Layer 2 

multicast group 

GMS: Global Management System 

GMS: Global Messaging Service 

(Novell) 

GMT: Greenwich Mean Time 

Also called UTC 

GMTA: Great Minds Think Alike 

(Net lingo) 

GNA: Global Network Academy 

GND: GrouND 

(Hardware) 

GNN: Global Network Navigator 

(Network) 

GNOME: Gnu Network Object Model 

Environment 

GNU: Gnu's Not Unix 

GOAD: Gnome Object Activation Directory 


G

GOCA 

GOCA: Graphic Object Content Architecture 

GOD: Global OutDial 

GOLP: Government Open License Program 

The Microsoft Government Open License Program is 

designed to provide a simple volume-licensing solution and 

is a cost-effective way for qualified government entities 

needing as few as five licenses to purchase software 


GOSIP: Government Open Systems 

Interconnection Profile 

GP: Gas Plasma 

GP: General Purpose 

GP: Gold Plated 

(Hardware) 

GPC: General-Purpose Computation 

GPC: Graphics Performance Characterization 

GPCI: Graphics Processor Command Interface 

GPE: Graphics Picture Enhancement 


GPF: General Protection Fault 

Common error in 16-bits Windows (Software) (Microsoft) 

GPI: Graphics Programming Interface 

(Software) 

GPIB: General Purpose Interface Bus 


GPIO: General Purpose Input Output 

GPL: General Public License 

(GNU) 

GPL: Graphics Programming Language 

GPM: Group Policy Manager 


GPO: Group Policy Object 


GPP: Generic Packetized Protocol 

GPR: General Purpose Register 

(Hardware) 

GPRC: Glass Passivated Rectifier Chip 

GPRS: General Packet Radio Service 


GPS: Global Positioning System 

GPS: Global Product Specification 

GPSI: Graphics Processor Software Interface 

GPSS: General Purpose Simulation System 

GPT: Guid Partition Table 


GPU: Graphics Processing Unit 

(Hardware) 

GPV: General Public Virus 

GQL: Graphical Query Language 

GQoS: Generic Quality of Service 

(Network) 

GRADD: GRaphics Adapter Device Driver 

(IBM) 

GRAM: Global Resource Allocation Manager 

GRASP: General Responsibility Assignment 

Software Patterns 

(Software) 


GRE: Generic Routing Encapsulation 

Protocol for encapsulation of an arbitrary network layer 

protocol over another arbitrary network layer protocol 

(Network) 

GRE: GRaphics Engine 

GREP: Global Regular Expression Print 

GRIC: Global Reach Internet Connection 


GRINS: GRaphical INterface to Smil 

GTG 

gRMS: G Root Mean Square 

Measurement unit used to quantify a vibration; "g" is the 

gravitational acceleration constant (Hardware) 

GRP: Group 


GRS: General Retention Schedule 

Length of time archived data is to be kept in an archive 

database 

GRUB: GRand Unified Bootloader 


GS: General Synthesis 

(Hardware) (Roland) 

GS: Group Separator 

GSDS: Genealogy Software Distribution 

System 

GSE: Giac Security Expert 

GSI: General Server Interface 

GSI: Grid Security Infrastructure 

GSM: Global Shared Memory 

GSM: Global System for Mobile 

communications 


GSMP: General Switch Management Protocol 

(Network) 

GSNW: Gateway Service for NetWare 

(Microsoft) 

GSP: Generic Server Passer 

GSP: Global Service Provider 

GSR: Gigabit Switch Router 

(Hardware) 

GSS: Generic Security Service 

GSSAP: Generic Security Service Application 

Protocol 

(Security) 

GSSAPI: Generic Security Services 


(Software) 

GSTN: General Switched Telephone Network 

GSTS: Ground-based Surveillance and 

Tracking System 

GT: Greater Than 

(Software) 

GTDM: Group Time Division Multiplexing 

GTE: General Telephone Electronics 

GTF: Generalized Timing Format 

GTFO: Get The F**k Out 

To ask someone to leave now (Net lingo) 

GTG: Got To Go 

(Net lingo) 


G

GTK 

GTK: Gimp ToolKit 

Set of libraries to create graphical user interfaces. It has a 

C-based object-oriented architecture that allows for 

maximum flexibility (Software) (GNU) 

GTL: Gunning Transceiver Logic 

gTLD: Generic Top Level Domain 

(Network) 

GTM: Gnome Transfer Manager 

GTO: Guide To Operations 

(IBM) 

GTP: Geometry Theorem Prover 

GTS: Generic Traffic Shaping 

(Cisco) 

GUI: Graphical User Interface 

The pictorial point of interaction between you and the 

computer and its special applications, usually with a 

mouse or other selection device. (Operating systems) 

GUID: Globally Unique IDentifier 

GUIDE: Graphical User Interface Design 

Editor 

GUUG: German Unix User Group 

GVPN: Global Virtual Private Network 

(Network) 

GVT: Global Virtual Time 

GVU: Graphic, Visualization, and Usability 

GWAPI: Go Webserver Application 



GWART: GateWay Address Routing Table 

GW-BASIC: Gee Whiz Beginners All-purpose 


GWE: Global Write Enabled 

(Hardware) 

GWES: Graphics, Windowing and Events 

Subsystem 


GWIA: GroupWare Internet Agent 

(Novell) 

H: Header 


H&J: Hyphenation And Justification 

(Software) 

H/PC: Hand-held Personal Computer 

(Hardware) 

H 

H/V: Horizontal/Vertical 

H/W: HardWare 

HA: Header Authentication 

HA: High Availability 

HA: Home Agent 

Component for mobile IP applications that run on home or 

private networks (Network) 

HACMP: High Availability Cluster Multi- 

Processing 

(IBM) 

HACN: Home Agent Control Node 

(Network) 


HAI: Hardware Accelerator Interface 

(Hardware) 

HAL: Hard Array Logic 

HAL: Hardware Abstraction Layer 

HAL: Heuristically Programmed Algorithmic 


HAL: Home Automated Living 

HAL: House-programmed Array Logic 

HALO: High Altitude Long Operation 

Communication aircraft (Communication) 

HAND: Have A Nice Day 

(Net lingo) 

HAP: Host Access Protocol 

HAS: Home Automation System 

HASP: Houston Automatic Spooling Priority 

HAT: Hashed Address Table 

HAT: Heap Analysis Tool 

Tool for tracking down heap problems in Java programs 


HAWK: Hostile Activity Watch Kernel 

HDH 

HBA: Host Bus Adapter 

A controller board connecting the I/O expansion bus to the 

SCSI subsystem. (Hardware) 

HBCI: Home Banking Computer Interface 

HBI: Horizontal Blanking Interval 

(Hardware) 

HCA: Hich-Contrast Addressing 

(Hardware) (Sharp) 

HCG: High-Contrast Addressing 

HCI: Host Controller Interface 

BlueTooth technology (Communication) 

HCL: Hardware Compatibility List 

HCL: Host Control Links 

HCSDS: High-Capacity Satellite Digital Service 

HCSS: High Capacity Storage System 

HCTDS: High-Capacity Terrestrial Digital 

Service 

HCU: Home Computer User 

HD: Hard Disk 

(Hardware) 

HD: High Density 

HDA: Head Disk Assembly 

HDB3: High-Density Bipolar 3 


HDC: Hard Disk Controller 

HDC: High Dependability Computing 

HD-CD: High Definition Compact Disk 

HDD: Hard Disk Drive 

(Hardware) 

HDDL: High-level Dialogue Definition 

Language 

(Software) (Philips) 

HD-DVD: High Definition Digital Video (or 

Versatile) Disk 

(Hardware) 

HDF: Hierarchical Data Format 

HDH: Hdlc Distant Host 


G 

H

HDI 

HDI: Head to Disk Interference 

HDI: Hoops Device Interface 

HDL: Hardware Description Language 

HDLC: High-level Data-Link Control 

A generic link-level communications protocol developed by 

the International Standards Organization. HDLC manages 

synchronous, code-transparent, serial information transfer 

over a link connection (Communication) 

HDLP: High-Level Data Link Protocol 

HDM: Hardware Device Module 

(Hardware) 

HDML: Handheld Device Markup Language 

HDMOS: High Density Metal Oxide 

Semiconductor 

HDP: Hard Disk Password 

(Security) 

HDR: HeaDeR 

HDR: High Data Rate 


HDR: High Dynamic Range 

HDR: Host Data Replicator 

(Databases) 

HD-ROM: High Density Read Only Memory 

(Hardware) 

HDSC: High Density Signal Carrier 

(DEC) 

HDSL: High bit rate Digital Subscriber Line 


HDSM: Heterogeneous Distributed Shared 

Memory 

(Hardware) 

HDSS: Holographic Data Storage System 

HDT: Hawaii Daylight Time 


HDT: Host Digital Terminal 

HDTP: Handheld Device Transport Protocol 


HDTS: High Density Thumb Screw 

SCSI connector with manually screwable screws 

(Hardware) (HP) 

HDTV: High-Definition TeleVision 

(Hardware) 

HDVD: High Definition Volumetric Display 

HDW: HarDWare 

HDx: Half DupleX 


HEC: Header Error Check 


HEL: Hardware Emulation Layer 

HEP: Horizontal Enterprise Portal 

HEPNET: High Energy Physics NETwork 

HES: Home Entertainment System 

(Hardware) 

HEX: HEXadecimal 

HF: High Frequency 

HF: Human Factors 

HFC: Hybrid Fiber-Coaxial 

(Hardware) 


HFEP: Host - Front End Protocol 

(Network) 

HFS: Hierarchical File System 


HFT: High Function Terminal 

(IBM) 

HFT: Host Function Table 

(Software) 

HGA: Hercules Graphics Adapter 

HGC: Hercules Graphics Card 

(Hardware) 

HGCP: Hercules Graphics Card Plus 

HGML: Hyper Graphics Markup Language 

HLCO 

HHT: Hand-Held Terminal 

Hand-held programming terminal to communicate with a 

programmable logic controller (PLC) on the fly (Hardware) 

HIC: Hybrid Integrated Circuit 

HID: High-Intensity Discharge 

Light bulb technology used mainly in projectors (Hardware) 

HID: Human Interface Device 

(Hardware) 

HIDS: Host-based Intrusion Detection System 

(Security) 

HIF: Hyper-g Interchange Format 


HiFD: HIgh-capacity Floppy Disk 


HIFI: Hypertext Interface For Information 

HIL: Human Interface Link 

(HP) 

HIMEM: HIgh MEMory 

HIP: Hardware Instrumentation Package 

(Hardware) 

HIPERLAN: HIgh-PErformance Radio Local 

Area Network 

(Network) 

HIPPI: HIgh Performance Parallel Interface 

(Hardware) 

HIRD: Hurd of Interfaces Representing Depth 

(Operating systems) (GNU) 

HITS: Hypertext-Induced Topic Search 

HJB: HotJava Browser 

(Sun) 

HKCC: HKey_Current_Config 

Windows NT Registry key (Operating systems) (Microsoft) 

HKCR: HKey_Classes_Root 


HKCU: HKey_Current_User 


HKDD: HKey_Dyn_Data 


HKLM: HKey_Local_Machine 


HKU: HKey_Users 


HLB: Horny Little Bastard 

(Net lingo) 

HLCO: High Low Close Open 


H

HLD 

HLD: Height, Length, Depth 

HLHSR: Hidden-Line, Hidden-Surface Removal 

HLL: High-Level Language 

(Software) 

HLLAPI: High-Level Language Application 


(Software) 

HLP: HeLP 


HLQ: High Level Qualifier 

HLR: Home Location Register 

HLS: Hue, Luminance, Saturation 

Color model 

HLT: HaLT 

HMA: High Memory Area 

Method to access the first 64kB segment above the 1MB 

boundary in DOS/Windows 16-bits (Microsoft) 

HMA: Hub Management Architecture 

HMC: Highspeed Memory Controller 

HMD: Head Mounted Display 

HMFIC: Head Mother Fucker in Charge 

Another name for the boss (Net lingo) 

HMI: Host Micro Interface 

(CompuServe) 

HMI: Html Mail Interface 

(Microsoft) 

HMI: Human-Machine Interface 

HMM: Hidden Markov Model 

HMMP: HyperMedia Management Protocol 

HMMU: Hardware Memory Management Unit 

(Hardware) 

HMOS: High performance Metal Oxide 

Semiconductor 

HMP: Host Monitoring Protocol 

H-MUX: Hybrid MUltipleXer 

HNET: Holographic NEural Technology 

HOAP: Humanoid for Open Architecture 

Platform 

HOAS: Hold On A Second 

(Net lingo) 

HOB: High-Order Byte 

HOD: Host-On-Demand 

HO-DSP: Higher Order Domain-Specific Part 

(Network) 

HOL: High Order Language 

HOLAP: Hybrid On-Line OnLine Analytical 

Processing 

HOOPS: Hierachical Object Orientated Picture 

System 

HOPS: Hierarchical Object Orientated Picture 

System 

HOSED: Hardware Or Software Error Detected 

General error not yet diagnosed. If ignored, progressed to 

SNAFU and then FUBAR (Net lingo) 

HOTT: Hot Off The Tree 

Electronic newsletter 


HOTW: Hot Off The Web 

Web organizer (Software) 

HOV: High Occupancy Vehicle 

HP: Hewlett-Packard 

HPR 

HP: HoneyPot 

An Internet-attached server that acts as a decoy, luring in 

potential hackers in order to study their activities and 

monitor how they are able to break into a system (Security) 

HP/UX: Hewlett-Packard UniX 

(Operating systems) (HP) 

HPA: High Performance Addressing 

HPAS: Hypermedia Presentation and 

Authoring System 

HP-AS: Hewlett-Packard Application Server 

(HP) 

HPB: High Ping Bastard 

Network multiplayer games attribute (Software) 

HPC: High-Performance Computing 

HPCA: High Performance Computer 

Architecture 

(Hardware) 

HPCC: High-Performance Computing and 


HPDJ: Hewlett-Packard Desk Jet 

HPF: High Performance Fortran 

HPFS: High Performance File System 


HPG: Hewlett-Packard Graphics 

HPGL: Hewlett-Packard Graphics Language 

Language to describe vector graphics (usually for plotters) 

(Software) (HP) 

HPIB: Hewlett Packard Interface Bus 

Is a version of GPIB (also known as IEEE.488) and was 

used on Hewlett Packard (Now Aligent Technologies) lab 

equipment. Early versions used a different connector 


HP-IB: Hewlett-Packard Interface Bus 


HP-IL: Hewlett-Packard Interface Loop 

A serial communications interface, expecially for small 

calculators, i.e. 41C (Communication) (HP) 

HPLJ: Hewlett-Packard Laser Jet 

HPLT: High Productivity Languages/Tools 

HPNA: Home Phoneline Networking Alliance 


HPOFS: High Performance Optical File System 

HPOM: Home Page Object Model 

(Microsoft) 

HPPA: Hewlett-Packard Precision Architecture 

HPPCL: Hewlett-Packard Printer Control 

Language 

HPPE: High Performance Processing Element 

(Hardware) 

HPPI: High-Performance Peripheral Interface 

HPPN: Hewlett-Packard Proactive Notification 

(HP) 

HPR: High Performance Routing 

(IBM) 


H

HPSA 

HPSA: High Parallel System Architecture 

(Hardware) 

HPSB: High-Performance Serial Bus 

Also known as FireWire (Hardware) 

HPUX: Hewlett-Packard UniX 

HP-VUE: Hewlett-Packard Visual User 

Environment 

HPW: High Performance Workstation 

(Sun) 

HQ: HeadQuarter 

HR: High-Rate 

IEEE 802.11 wireless LAN access method 


HR: Human Resource 

HRAA: High Resolution Anti Aliasing 

Technology found in the nVidia GeForce3 Chip (Hardware) 

(nVidia) 

HRAD: Hosted Rapid Application Development 

HRC: Hybrid Ring Control 

HREF: Hypertext REFerence 

HRG: High Resolution Graphics 

HRIS: Human Resource Information System 

HRMS: Human Resource Management System 

HRTF: Head-Related Transfer Function 

HS: High Speed 

HSB: Hue, Saturation, Brightness 

Color model 

HSC: Help and Support Center 


HSC: Hierarchical Storage Controller 

HSC: High Speed Channel 

HSCSD: High-Speed Circuit-Switched Data 

For the Global System for Mobile (GSM) (Communication) 

HSD: High Speed Data 

HSF: Heat Sink and Fan 

Common combination of a fan attached to a heat sink that 

is placed in contact with a microprocessor that needs to be 

cooled. (Hardware) 

HSFS: High Sierra File System 


HSI: High Speed Interface 

HSI: Hue, Saturation, Intensity 

Color model 

HSIL: Host Side Igmp Library 


HSL: High Speed Link 

(IBM) 

HSL: Hue, Saturation, Luminance 

Color model (Hardware) 

HSLAN: High Speed Local Area Network 

HSLN: High Speed Local Network 

HSM: Hierarchical Storage Management 

HSM: Hitachi System Manager 

HSMOS: High Speed Metal Oxide 

Semiconductor 

HSP: High Speed Printer 


HSR: Horizontal Scan Rate 

(Hardware) 

HSRP: Hot Standby Router Protocol 


HURD 

HSSDS: High Speed Switched Digital Service 

HSSI: High Speed Serial Interface 

HST: Hawaii Standard Time 


HST: High Speed Technology 

(3Com) 

HST: HiSTory 

HST: HoST 

HSV: Hue, Saturation, Value 

HSYNC: Horizontal SYNChronization 

(Hardware) 

HT: Horizontal Tab 

HT: Hyper-Threading 

A technology started with Intel® Pentium® 4 Processor at 

3.06 that enables the processor to execute two thread in 

parallel, so the software can run more efficiently and the 

user can multitask more effectively (Hardware) (Intel) 

HTA: HyperText Application 

(Network) 

HTCPCP: Hyper Text Coffee Pot Control 

Protocol 

(Network) 

HTDM: Hybrid Time Division Multiplexing 

HTH: Hope This Helps 

(Net lingo) 

HTL: High Threshold Logic 

(Hardware) 

HTML: HyperText Markup Language 

A file format, based on SGML, for hypertext documents on 

the Internet. It is simple and enables the embedding of 

images, sounds, video streams, form fields, and basic text 

formatting. 

HTPC: Home Theater Personal Computer 

(Hardware) 

HTT: Hyper-Threading Technology 

Implementation of simultaneous multithreading on Intel 

Pentium 4, Mobile Pentium 4, and Xeon processors (Intel) 

HTTP: HyperText Transport (or Transfer) 

Protocol 

The Internet protocol that fetches hypertext objects from 

remote hosts. It is based on TCP/IP. 

HTTPD: HyperText Transfer Protocol Daemon 

HTTP-NG: HyperText Transfer Protocol - Next 

Generation 

HTTPS: HyperText Transport (or Transfer) 

Protocol Secure 

The secure version of HTTP allowing transfer of encrypted 

data 

HTX: HTml eXtension 

HUD: Heads Up Display 

HUMAN: High-speed Unlicensed Metropolitan 

Area Network 

(Network) 

HURD: Hird of Unix-Replacing Daemons 

(Operating systems) (GNU) 


H

HURSE 

HURSE: Hasp Unit Record SErvice 

To get a punch or print of your cards (Operating systems) 

(IBM) 

HUT: Hopkins Ultraviolet Telescope 

HVC: Hue, Value, Chroma 

HVD: High Voltage Differential 

(Hardware) 

HVP: Horizontal and Vertical Position 

HVS: Human Visual System 

HW: HardWare 

HWCP: HardWare Code Page 

HWD: Height, Width, Depth 

HWDM: Hyperfine Wavelength-Division 

Multiplexing 


HWG: Here We Go! 

Mostly used in online gaming (Games) 

HWIH: Here's What I Have 

(Net lingo) 

HYTEA: HYperText Environment for Authoring 

Hz: HertZ 

Frequency measurement unit 

(ISC)2: International Information System 

Security Certification Consortium 


I/F: InterFace 

I/O: Input/Output 

The equipment used to communicate with a computer, the 

data involved in that communication, the media carrying 

the data, and the process of communicating that 

information 

I/T: Integration/Transformation 

Another name for Extract, Transform and Load (ETL) 

(Databases) 

I2: Internet 2 

(Network) 

I2C: Intelligent Interface Controller 

(Hardware) 

I 

I2C: Inter-Integrated Circuit 

2-wire bus developed by Philips Semiconductors in the 

early 1980's for efficient inter-IC communications. See 

http://www.semiconductors.philips.com/markets/mms/proto 

cols/i2c/ (Hardware) (Philips) 

I2-DSI: Internet 2-Distributed Storage 


(Network) 

I2O: Intelligent Input Output 

I3: Innovation In Infrastructure 

I4DL: Interface, Inheritance, 

Implementation, Installation Definition 

Language 

IA: Illustrated Audio 

Sound file format 

IA: Information Appliance 

(Hardware) 

IA: Information Architecture 

IA: Intel Architecture 



IAA: Intel's Application Accelerator 

IAT 

IAB: Internet Activities Board 

The group that administrates the development of the 

Internet suite of protocols (TCP/IP). The IAB has two 

investigative task forces, the IRTF and the IETF. Now its 

called Internet Architecture Board (Organizations) 

IAB: Internet Architecture Board 

The new name of what was called Internet Activities Board 


IAC: InterApplication Communication 

(Apple) 

IAC: Internet Application Component 

(Software) 

IAD: Integrated Access Device 

IAD: Intrusion-Aware Design 

(Security) 

IADM: Internet Application Distribution 

Management 

IAEC: International Address Element Code 

IAFA: Internet Anonymous Ftp Archives 

(Network) 

IAG: Instruction Address Generation 

IAHC: Internet Ad Hoc Committee 


IAI: Internet Application Integration 

IAK: Internet Access Kit 

(IBM) 

IAL: Intel Architecture Lab 

(Intel) 

IAL: International Algebraic Language 

ALGOL was first called IAL 

IALATFTTJH: I Am Laughing At The Funny 

Thing That Just Happend 

An alternative to LOL used to represent humor (Net lingo) 

IAM: Index Allocation Map 

(Databases) 

IAM: Internet Answering Machine 

(Software) 

IANA: Internet Assigned Numbers Authority 

IANAL: I Am Not A Lawyer 

Standard disclaimer before dispensing legal advice (Net 

lingo) 

IANW: International Academic NetWorkshops 

IAP: Internet Access Policy 

IAP: Internet Access Provider 

IARP: Inverse Address Resolution Protocol 

(Network) 

IAS: Information Access Service 

IAS: Interactive Application System 

IAS: Internet Access Server 

(Network) 

IAS: Internet Authentication Service 

IASS: Internet Alphaserver System Software 

(DEC) 

IAT: Import Address Table 


IAT: Information Access Technology 

IAT: Internet Appliance Toolkit 

(Network) (QNX) 


H 

I

IAUG 

IAUG: International Aix User Group 

IAYF: Information At Your Fingertips 

IB: Interface Builder 


IBA: Intel Boot Agent 

(Intel) 

IBC: Instrument Bus Computer 

iBCS: Intel Binary Compatibility Specification 

IBG: International Biometrics Group 

(Security) 

IBIP: Information Based Indicia Program 

Bar code postage system 

IBM: International Business Machines 

IBM-GL: International Business Machines 

Graphics Language 

IBN: Integrated Business Network 

IBOC: In-Band, On-Channel 

IBTL: In Before The Lock 

A cry made prior to an on-line moderator locking an 

inapproprate topic on in an on-line discussion forum (Net 

lingo) 

IBV: Information Behavior and Value 

IC: I See 

(Net lingo) 

IC: Input Circuit 

IC: Input Context 

An abstraction for representing the state of a particular 

input thread for use with an input method. Multiple ICs can 

be associated with an input method. 

IC: Integrated Circuit 

(Hardware) 

IC: Interexchange Carrier 


IC: Internet Connector 


IC: Interrupt Controller 

ICA: Independent Computing Architecture 

ICA: Intelligent Communication Adapter 

ICA: Intelligent Console Architecture 

ICA: Intra-application Communications Area 

ICALP: International Conference on 

Automata, Languages and Programming 

ICAN: Individual Customer Access Network 

ICANN: Internet Corporation for Assigned 

Names and Numbers 


ICAP: Intenet Content Adaption Protocol 

(Network) 

ICAP: Internet Calendar Access Protocol 

(Lotus) 

ICAPI: Internet Connection server 



ICAS: Intel Communicating Applications 

Specifications 

ICB: Internet Citizen's Band 

ICC: Integration Competency Center 

(Software) 


ICC: Intelligent Communications Control 

ICC: International Color Consortium 


ICCB: Internet Configuration Control Board 


I-C-IT 

ICCC: InterClient Communication Convention 

ICCCM: Inter-Client Communication 

Conventions Manual 

The document that describes the conventions for the 

communication between X clients. This includes such 

conventions as client-to-client, client-to-window manager, 

client-to-session manager, and color characterization 

communication. (Operating systems) 

ICCD: International Conference on Computer 

Design 

ICCF: Interactive Computing and Control 

Facility 

Program development and testing environment (Software) 

(IBM) 

ICCP: Institute for the Certification of 

Computing Professionals 

ICCS: Integrated Communications Cabling 

System 

ICD: Installable Client Driver 

ICD: International Code Designator 

ICDA: Integrated Cached Disk Array 

ICDL: International Computer Driving Licence 

The ICDL Foundation works to promote an International 

certification of industry-standard computing skills. See 

http://www.ecdl.com (Organizations) 

ICDS: I-data Compressed Data Stream 

An i-data/MPI Tech architected bi-directional host-toprinter 

data stream that contains both data and controls. 

ICDS is generated by EPM and PSS host applications 

ICE: Image Correction and Enhancement 


ICE: In-Circuit Emulation 

(Hardware) 

ICE: Information and Content Exchange 

Protocol for use by content syndicators and their 

subscribers. It focuses on automating content exchange 

and reuse, both in traditional publishing contexts and in 

business-to-business relationships 

ICE: Integrated Computing Environment 

ICE: Internal Consistency Evaluator 


ICEM: Integrated Computer aided 

Engineering and Manufacturing 

ICES: Interference-Causing Equipment 

Standard 

ICF: Integrated Catalog Facility 

ICF: Interactive Communication Facility 

(IBM) 

ICF: Internet Connection Firewall 

(Security) (Microsoft) 

ICH: I/o Controller Hub 


ICI: Image Component Information 

ICI: Inter-Cpu Interrupt 

I-C-IT: Intelligent Control Interactive 

Technology 


I

ICL 

ICL: Industrial Code and Logic 

Manufacturer 

ICL: Interface Clear 

ICLID: Incoming Call Line IDentification 

ICM: Image Color Management 

(Software) 

ICM: Image Color Matching 

(Kodak) 

ICM: InComing Message 

ICM: Internet Call Manager 

ICMC: International Computer Music 

Conference 

ICMF: Integrated Coupling Migration Facility 

ICMP: Internet Control Message Protocol 

The protocol used that handles errors and control 

messages at the Internet Protocol layer. For example, the 

ping command is an implementation of the ICMP. ICMP 

occurs on the IP (network) level of the TCP/IP protocol 

suite. (Communication) 

ICO: ICOn 


iCOMP: Intel COmparative Microprocessor 

Performance 

(Intel) 

ICP: Image CoProcessor 

(Hardware) 

ICP: Independent Content Provider 

(Network) 

ICP: Integrated Channel Processor 

ICP: Intelligent Communication Protocol 

(Network) 

ICP: Internet Cache Protocol 

(Network) 

ICP: Internet Content Provider 

ICP: Internet Control Pack 


ICQ: I Seek You 

Communication program (Software) 

ICR: Intelligent Character Recognition 

iCRT: Intelligent Content Recognition 

Technology 

ICS: Ibm Cabling System 

ICS: Implementation Conformance Statement 

ICS: Incremental Change Synchronization 

A mechanism to monitor, export, and import changed items 

(both hierarchy and content) between a database and an 

information store or between two information stores 


ICS: Integrated Client Setup 

ICS: Internet Caching System 

(Network) 

ICS: Internet Conferencing System 

(Network) 

ICS: Internet Connection Sharing 


ICS: Intuitive Command Structure 

ICS: Iris Certificate Security 


ICSA: International Computer Security 

Association 


ICSA: Internet Cellular Smart Access 

ICSAPI: Internet Connection Services 


ICSC: Intelligent Channel/Storage Control 

ICSE: International Conference on Software 

Engineering 

iDCT 

ICSF: Internet Connection Sharing and 

Firewall 

Makes it possible for home and small office users to create 

and manage private networks in which multiple computers 

share a single connection to the Internet (Operating 


ICSW: Internet Connection Sharing Wizard 


ICT: Information and Communications 

Technology 

A broader definition of Information Technology (IT) 

including communications 

ICTSB: Information and Communications 

Technology Standards Board 

Initiative from the three recognized European standards 

organizations with the participation of specification 

providers as partners to co-ordinate specification 

activities in the field of Information and Communications 

Technologies (ICT) (Organizations) 

ICU: Instruction-Cache Unit 

ICU: Intel Configuration Utility 

(Microsoft) 

ICU: Interactive Chart Utility 

ICU: Internet Communication Utilities 


ICU: Isa Configuration Utility 

ICW: Internet Connection Wizard 


ID: IDentifier 

IDA: Inernational Database Association 


IDA: Intelligent Drive Array 

(Hardware) 

IDA: International Database Association 

IDAPI: Independent Database Application 



IDARS: Integrated Document Archive and 

Retrieval System 

IDAS: Interchange DAta Structure 

IDBMS: Integrated DataBase Management 

System 

(Databases) 

IDC: Integrated Desktop Connector 

IDC: Inter-Device Communication 

IDC: International Data Corporation 

IDC: Internet Data Center 

IDC: Internet Database Connector 


iDCT: Inverse Discrete Cosine Transform 


I

IDDD 

IDDD: International Distance Direct Dialing 


IDDE: Integrated Development & Debugging 

Environment 

(Symantec) 

IDE: Integrated Development Environment 

(Software) 

IDE: Integrated Drive (or Device) Electronics 


IDE: Interactive Design and Engineering 

IDE: Interface Design Enhancement 

IDEA: International Data Encryption 

Algorithm 

IDEA: Internet Design, Engineering, and 

Analysis notes 

IDEMA: International Disk drive Equipment 

and Materials Association 

International not-for-profit trade association that 

represents the Hard Disk Drive (HDD) industry and its 

infrastructure. See also http://www.idema.org/ 


IDEN: Integrated Data Enhanced Network 

(Network) 

IDF: Intermediate Distribution Frame 

IDFK: I Don't F***ing Know 

(Net lingo) 

IDGA: International Game Developers 

Association 


IDI: Initial Domain Identifier 

(Network) 

IDIOT: Intrusion Detection In Our Time 

Project to develop a new approach to efficient misuse 

detection methods. Its design made use of a new 

classification of intrusion methods based on complexity of 

matching and temporal characteristics (Security) 

IDIV: Integer DIVide 

IDK: Internet Development Kit 

(Software) 

IDL: Interactive Data Language 

IDL: Interface Definition Language 

A language-independent way to describe a module 

interface (Software) 

IDLE: International Date Line East 


IDLW: International Date Line West 


IDM: Integrated Document Management 

IDN: Internationalized Domain Name 

IDNX: Integrated Digital Network eXchange 

(IBM) 

IDP: Integrated Data Processing 

IDP: Internet Datagram Protocol 

IDPR: Inter-Domain Policy Routing protocol 

(Network) 

IDR: Intelligent Disaster Recovery 

(Seagate) 

IDR: Intelligent Document Recognition 


IETFWG 

IDRAM: Integrated Dynamic Random Access 

Memory 

(Hardware) 

IDRC: Improved Data Recording Capacity 

(Hardware) 

IDS: Information Delivery System 

IDS: Internal Directory System 

IDS: Intrusion Detection System 

(Security) 

IDSL: Isdn Digital Subscriber Line 


IDT: Integrated Device Technologies 

(IDT) 

IDT: Interface Design Tool 

IDT: Interrupt Descriptor Table 

IDTS: I Don't Think So 

(Net lingo) 

IDU: Interface Data Unit 

IDUG: International Db2 Users Group 


IDUP-GSS-API: Independent Data Unit 

Protection Generic Security Service 


IDVC: Integrated Data/Voice Channel 

IDX: InDeX 


IE: Information Element 

IE: Information Engineering 

IE: Internet Explorer 


IEAK: Internet Explorer Administrator Kit 


IEC: InterExchange Carrier 

IEC: International Electrotechnical 

Commission 


IEE: Institute of Electrical Engineers 

IEEE: Institute of Electrical and Electronics 

Engineers 


IEF: Information Engineering Facility 

IEG: Information Exchange Group 

IEMSI: Interactive Electronic Mail Standard 


IEN: Internet Engineering Notes 

IEN: Internet Experiment Notebook 

IEP: Initial Experience Predictor 

IEPA: Individual Expert Participation 

Agreement 

(Sun) 

IESG: Internet Engineering Steering Group 

The executive committee of the IETF (Organizations) 

IETF: Internet Engineering Task Force 

An engineering and protocol standards body that develops 

and specifies protocols and Internet standards, generally 

in the network layer and above. See www.ietf.org 


IETFWG: Internet Engineering Task Force 

Working Group 


I

IEW 

IEW: Information Engineering Workbench 

IF: Information Flow 

IF: Inner Firewall 

(Security) 

IFB: Internet Free/Busy 

Microsoft Outlook feature (Software) (Microsoft) 

IFC: Internet Foundation Classes 

(Software) 

IFCC: Internet Fraud Complaint Center 


IFCM: Independent Flow Control Messages 

IFD: Image File Directory 

IFD: Information Flow Diagram 

i-FED: Intelligent Field Emitting Display 

(Hardware) 

IFF: Interchange File Format 

IFG: Incoming Fax Gateway 

IFIP: International Federation of 

Information Processing societies 

IFITL: Integrated Fiber In The Loop 

Enables Internet access through a technology known as 

Point-to-Point Protocol over Ethernet (PPPoE). (Network) 

IFMP: Ipsilon Flow Management Protocol 

IFNA: International FidoNet Association 

IFP: Instruction Fetch Pipeline 

IFPI: International Federation of 

Phonographic Industry 


IFPUG: International Function Point User 

Group 

Promotes and encourages the effective management of 

application software development and maintenance 

activities through the use of Function Point Analysis (FPA) 

and other software measurement techniques 


IFR: Interleaved Frame Recording 

IFS: Installable File System 


IFS: Internal Field Separator 

IFS: Internal Field Seperator 

IFS: Internet File System 


IFSM: InFormation Systems Management 

IFSMgr: Installable File System ManaGeR 


IFT: Inverse fast Fourier Transform 

IFX: Interactive Financial eXchange 

IGA: Integrated Graphics Array 

IGC: Institute for Global Communications 

IGC: Integrated Graphics Controller 

IGES: Initial Graphics Exchange Specification 

File format for graphics interchange 

IGFET: Insulated-Gate Field Effect Transistor 

IGFOS: International Government Forum for 

Open Systems 



IGMP: Internet Group Management Protocol 

The TCP/IP protocol that permits Internet hosts to take 

part in IP multicasting. It is an efficient means of 

broadcasting messages to groups of end-stations 

(Network) 

IGN: Ibm Global Network 

IGP: Integrated Graphics Processor 

(Hardware) 

IKP 

IGP: Interior Gateway Protocol 

The protocol that enables the exchange or routing 

information between collaborating routers on the Internet. 

Examples of IGPs include Routing Information Protocol 

(RIP) and Open Shortest Path First (OSPF) 

IGRP: Interior Gateway Routing Protocol 

(Cisco) 

IGS: Internet Go Server 

IGSN: Internet Gprs Support Node 


IHA: Intel Hub Architecture 


IHD: Integrated Help Desk 

(IBM) 

IHV: Independent Hardware Vendor 

A third-party hardware manufacturer (Hardware) 

IID: Interface IDentifier 

(Software) 

IIF: Immediate IF 

(Databases) 

IIF: Immediate InterFace 

III: Interstate Identification Index 

IIIR: Integration of Internet Information 

Resources 

IIL: Integrated Injection Logic 

IIM: Internet Interaction Management 

IIN: Integrated Information Network 

IIOP: Internet Interoperable Orb Protocol 


IIR: Immediate Impulse Response 

IIR: Incremental Image Rendering 

IIRC: If I Recall Correctly 

(Net lingo) 

IIRG: International Information Retrieval 

Guild 

The oldest surviving hacker organization. See 

http://www.iirg.org/ (Organizations) 

IIS: Internet Information Server 


IISP: Interim Inter-switch Signaling Protocol 

IITF: Information Infrastructure Task Force 

IJCAI: International Joint Conference on 

Artificial Intelligence 

IK: Inverse Kinematics 

IKBS: Intelligent Knowledge Based System 

IKE: Internet Key Exchange 

IKMP: Internet Key Management Protocol 

(Network) 

IKP: Internet Keyed Payment 


I

IL 

IL: Intermediate Language 

A platform-independent, compiler-generated language 

suitable to run on platform-specific virtual machines 

(Software) 

ILA: Image Light Amplifier 

ILE: Integrated Language Environment 


ILEC: Incumbent Local Exchange Carrier 

Also known as primary local exchange carrier 


ILLINET: ILlinois LIbrary NETwork 

ILM: Information Lifecycle Management 

Not a technology, ILM is a combination of processes and 

technologies that determines how data flows through an 

environment. By doing so, it helps end users manage data 

from the moment it is created to the time it is no longer 

needed 

ILMI: Interim Local Management Interface 

iLO: Integrated Lights-Out 

Remote management feature on HP servers. (Hardware) 

(HP) 

ILP: Instruction-Level Parallelism 

CPU architecture 

ILS: International Language Support 

ILS: Internet Locator Service 

IM: Input Method 

The algorithm by which users enter the text of a language. 

Input methods differ for each language, depending on that 

language’s structure and conventions 

IM: Instant Messaging 

IM: Interface Module 

IMA: Interactive Multimedia Association 

IMA: International Midi Association 

IMAC: Isochronous Media Access Control 

IMACS: Image Management and 


IMAP: Internet Message Access Protocol 

(Network) 

IMAPI: Image Mastering Application 


Allows an application to stage and burn a simple audio or 

data image to CD-R or CD-RW devices (Operating 


IMC: Internet Mail Connector 


IMC: Internet Message Center 

(Network) 

IMDB: In-Memory DataBase 

(Databases) 

IMDb: Internet Movie DataBase 

IMDS: IMage Data Stream 

(IBM) 

IME: Input Method Editor 


IME: Integrated Messaging Exchange 

IMEI: International Mobile Equipment Identity 

A code that uniquely identifies the mobile terminal 

hardware. It is important in GSM for keeping a record of 

lost or stolen mobile telephones. A copy of each IMEI is 

stored in the EIR (Communication) 


IMF: International Monetary Fund 


IMG: IMaGe 


IMHO: In My Humble Opinion 

(Net lingo) 

IML: Initial Microcode Load 

(IBM) 

IMM: Input Method Manager 


IMM: Intel Mobile Module 


IMM: Interactive MultiMedia 

IMNSHO: In My Not So Humble Opinion 

(Net lingo) 

IMO: In My Opinion 

(Net lingo) 

IMO: Intenet Mail Only 

Microsoft Outlook feature (Software) (Microsoft) 

IMP: Information Management Practice 

IMP: Interface Message Processor 

(Hardware) 

IMP: Internet Mail Only 

IMPA: Intelligent Multi-Port Adapter 

IMPP: Instant Messaging and Presence 

Protocol 

IMR: Internet Monthly Report 

IMS: Image Management Services 

IMS: Information Management System 

(IBM) 

IMS: Instructional Management System 

IMS: Intermediate Maintenance Standard 

IMS: Internet Mail Service 

IMSI: International Mobile Subscriber 

Identity 

A unique number within the SIM card that identifies the 

subscriber to the system (Communication) 

IMSO: Integrated Micro Systems Operation 

IMSP: Internet Message Support Protocol 

(Network) 

IMSVS: Information Management 

System/Virtual Storage 

IMTC: International Multimedia 

Teleconferencing Consortium 

IMTV: Interactive Multimedia TeleVision 

IMUL: Integer MULtiply 

IMUX: Inverse MUltipleXer 

IN: Individual Network 

IN: INput 

IN: Intelligent Network 

INA: Intelligent Network Architecture 

INAP 

INAP: Intelligent Network Application 

Protocol 

Allows applications to communicate between various 

nodes/functional entities of an intelligent network. The 

protocol defines the operations required to be performed 

between nodes/functional entities for providing intelligent 

network services 


I

INC 

INC: INCrement 

INCITS: InterNational Committee on 

Information Technology Standards 

Organization for standardization in the field of Information 

and Communications Technologies (ICT), encompassing 

storage, processing, transfer, display, management, 

organization, and retrieval of information (Organizations) 

INCM: Intelligent Network Conceptual Model 

IND: INDex 


INET: International NETworking conference 

INF: INFormation 


INFS: Internet Network File System 

INGRES: INteractive Graphic REtrieval System 

INI: INItialization 


INIT: INITialize 

INL: Inter Node Link 

INM: Integrated Network Management 

INM: International Neural Machines 

INN: Inter Node Network 

INN: InterNet News 

(Network) 

INND: InterNet News Daemon 

(Network) 

INOC: Internet Network Operations Center 

INP: Instant Network Presence 

(Network) 

INRIA: Institut National de Recherche en 

Informatique et Automatique 

INS: INput String 

INS: Integrated Network Server 

INT: INTeger 

INT: INTernal 

INT: INTernational 

organization Domain name 

INT: INTerrupt 

(Software) (Intel) 

INTA: INTerrupt Acknowledge 

INTAP: Interoperability Technology 

Association for Information Processing 

The technical organization that officially develops 

Japanese OSI profiles and conformance tests 


INTEL: INTegrated ELectronics 

(Intel) 

InterNIC: INTERnet Network Information 

Center 

INTO: INTerrupt if Overflow occurs 

INTRAC: INtelligent Traffic Routing And 

Control 

(Network) 

INTSERV: INTegrated SERVices 

The transport of audio, video, real-time, and classical data 

traffic within a single network infrastructure (Network) 

IO: Information Orientation 

IO: Input/Output 


IO: Internal Objects 


IOC: Input/Output Controller 

IOC: Inter-Office Channel 

IOCC: Input/Output Channel Converter 

IOCC: Input/Output Controller Chip 

IOCCC: International Obfuscated C Code 

Contest 

IOCP: Inter-Orb Communication Protocol 


IOCS: Input/Output Control System 

IOCtl: Input/Output ConTroL 

IPAUTH 

iODBC: Independent Open DataBase 

Connectivity 

Open source, platform independent implementation of both 

the ODBC and X/Open specifications. It is rapidly 

emerging as the industry standard for developing solutions 

that are language, platform and database independent. See 

also http://www.iodbc.org/ (Software) 

IOE: Internet Operating Environment 

IOF: Infrared Optical Film 

IONL: Internal Organization of the Network 

Layer 

The ISO/OSI standard for the architecture of the network 

layer. The IONL divides the network layer into 

subnetworks interconnected by convergence protocols 

(internetworking protocols), resulting in a catenet or 

internet (Organizations) 

IOP: Input/Output Parity 

(Hardware) 

IOP: Input/Output Processor 

(Hardware) 

IOPL: Input/Output Privilege Level 

IOQD: In-Order Queue Depth 


IOR: Interoperable Object Reference 

IORDY: Input/Output channel ReaDY 

(Hardware) 

IOREQ: Input/Output REQuest 

Microprocessor signal used in I/O addressing (Hardware) 

IORQ: Input/Output ReQuest 


IOS: Input/Output System 

IOS: Internet Operating System 


IOS: InterOrganizational System 

IOSGA: Input/Output Support Gate Array 

IOUG: International Oracle Users Group 

See http://www.ioug.org/ (Organizations) 

IP: Information Provider 

IP: Instruction Pointer 


IP: Intellectual Property 

IP: Intelligent Peripheral 

IP: Internet Protocol 

The major network layer protocol in the Internet Protocol 

suite. IP describes the routing of packets, among its many 

tasks (Network) 

IPAUTH: Internet Protocol AUTHentication 

(Security) 


I

IPBF 

IPBF: Installed Peripheral Base Flexibility 

IPC: Instructions Per Clock 

IPC: InterProcess Communication 

The process of sharing data between processes and, when 

necessary, coordinating access to the shared data 


IPCE: InterProcess Communication 

Environment 

IPCMOS: Interlocked Pipeline 

Complementary Metal Oxide Semiconductor 


IPCP: Internet Protocol Control Protocol 

(Network) 

IPCS: Integrated Personal Computer Server 

(Hardware) 

IPCS: Interactive Problem Control System 

IPD: Intelligent Printer Data 

IPDC: Internet Protocol Device Control 

IPDS: Ibm Personal Dictation System 

(IBM) 

IPDS: Intelligent Printer Data Stream 

(IBM) 

IPDU: Internet Protocol Data Unit 

IPDVMRP: Internet Protocol Distance Vector 

Multicast Routing Protocol 

IPE: Integrated Programming Environment 

IPF: Information Presentation Facility 

IPF: Invalid Page Format 

IPFC: Information Presentation Facility 

Compiler 

(IBM) 

IPI: Intelligent Peripheral Interface 

A device-generic interface used for large-capacity, highperformance 

disks. The IPI supports disk transfer rates at 

3Mbyte/sec and above (Hardware) 

IPI: Internet Policy Institute 

A device-generic interface used for large-capacity, highperformance 

disks. The IPI supports disk transfer rates at 

3MB/sec and above (Organizations) 

IPI: Inter-Processor Interrupt 

(Hardware) 

IPIC: International Primary Interexchange 

Carrier 


IPL: Ibm Public License 

(IBM) 

IPL: Information Programming Language 

IPL: Initial Program Load 

Also known as the bootstrap or boot process 

IPL: Ion Projection Lithography 

IPM: Images Per Minute 

ipm: Impressions Per Minute 

Printing speed measurement unit (Hardware) 

IPM: InfoPrint Manager 

IBM's Info Print Manager - Creates IPDS data (IBM) 

ipm: Instructions Per Minute 

IPM: Intelligent Power Module 

(Hardware) 


IPM: Internet Protection Module 

(Network) 

IPM: Internetwork Performance Monitor 

A network response time and availability troubleshooting 

application (Software) (Cisco) 

IPM: InterPersonal Message 

ipm: Interruptions Per Minute 

IPMI: Intelligent Platform Management 

Interface 

(Hardware) 

IPMI: Internet Protocol Multicast Initiative 

(Network) 

IPNG: Internet Protocol Next Generation 

(Network) 

IPO: Input, Processing and Output 

IPO: International Purchasing Office 

IPO: Internet Protocol over Optical 

(Network) 

IPP: Infrastructure Portal Provider 

IPP: Internet Printing Protocol 

(Network) 

IPP: Internet Protocol Processor 

(Hardware) 

IPR: Intellectual Property Rights 

ips: Inches Per Second 

(Hardware) 

IPS: Information Processing Standards 

IPS: In-Plane Switching 

(Hardware) 

iPS: Iplanet Portal Server 

IPSE: Integrated Project Support 

Environment 

IPSec: Internet Protocol SECurity 

A set of protocols that give greater IP-level security to 

data packets transmitted over Virtual Private Networks 

IPSRA: Internet Protocol Security Remote 

Access 

(Security) 

IPTC: International Press 

Telecommunications Council 

IPv: Internet Protocol, Version 


IPWG: Internet Privacy Working Group 


IPX: Internetwork Packet eXchange 


IPX/SPX: Internet Packet 

eXchange/Sequenced Packet eXchange 

IPXCP: Internetworking Packet eXchange 

Control Protocol 

(Network) 

IPXODI: Internet Packet eXchange Open 

Datalink Interface 

IQL: Interactive Query Language 

IR: InfraRed 

(Hardware) 

IR: Instruction Register 

(Hardware) 

IR: Interface Repository 

IR 


I

IRAM 

IRAM: Intelligent Random Access Memory 

(Hardware) 

IRC: Internet Relay Chat 

(Network) 

IRC: Interrupt Request Controller 

(Hardware) 

IRCA: Internet Content Rating Association 


IRCP: Internet Relay Chat Protocol 

(Network) 

IRD: Implementation Row Descriptor 

(Databases) 

IRD: Integrated Receiver/Descrambler 

IrDA: InfraRed Data Association 


IRDP: Icmp Router Discovery Protocol 

(Network) 

IRDS: Information Resource Dictionary 

System 

IRET: Interrupt RETurn 

IRF: Inheritance Rights Filter 

(Novell) 

IRF: Interger Register File 

IRF: Intermediate Routing Function 

IRIS: Internet Retailer Information System 

IRL: In Real Life 

(Net lingo) 

IRL: Insert Row Locking 

(Databases) 

IRL: Integer Register File 

IRL: Interactive Reader Language 

IrLAN: InfraRed Local Area Network 

IrLAP: InfraRed Link Access Protocol 


IRLED: InfraRed Light Emitting Diode 

IrLMP: InfraRed Link Management Protocol 


IRM: Information Resource Management 

IRM: Inherent Rights Mask 

IRP: I/o Request Packet 

Data structure used by Windows to communicate to kernelmode 

device drivers. (Operating systems) (Microsoft) 

IRQ: Interrupt ReQuest 

A signal that a device requires CPU attention (Hardware) 

IRQL: Interrupt ReQuest Level 

IRR: Internal Rate of Return 

IRS: Internal Revenue Service 

IRSG: Internet Research Steering Group 

IRTF: Internet Research Task Force 

The task force of the Internet Activities Board that 

addresses research and development of the Internet 

Protocol suite (Organizations) 

IRTOS: I2o Real Time Operating System 


IRTP: Internet Reliable Transaction Protocol 

IRX: Information Retrieval eXperiment 


IS: Image Stabilization 

A system like this can help your digital camera take 

clearer images (Hardware) 

IS: Information System 

IS: Internal System 

IS: Interrupt Status 

ISA: Industry Standard Architecture 

PC bus architecture (Hardware) 

ISA: Instruction-Set Architecture 

ISA: Interactive Services Association 

ISA: Internet Security and Acceleration 

(Microsoft) 

ISA: Internet Server Application 

(Software) 

ISACA: Information Systems Audit and 

Control Association 

See http://www.isaca.org/ (Organizations) 

ISAKMP: Internet Security Association Key 

Management Protocol 

(Network) 

ISAM: Indexed Sequential Access Method 

ISAPI: Internet Server Application 



ISBN: International Standard Book Number 

ISC: Information Supply Chain 

ISC: Instruction Set Computer 

ISC: Internet Service Center 

ISC: Internet Storm Center 

See http://isc.sans.org/ (Organizations) 

ISC: Inter-System Communication 

(IBM) 

ISCA: International Computing Security 

Association 


iSCSI: Internet Small Computer System 

Interface 

ISD: Image Section Descriptor 

ISD: Instructional Systems Design 

ISEN 

ISDN: Integrated Services Digital Network 

A communication technology offered by telephone carriers 

worldwide. ISDN combines voice and digital network 

services in a single medium, offering customers digital 

data services and voice connections through a single wire 


ISDN-UP: Integrated Services Digital 

Network User Part 

A communications technology offered by telephone 

carriers worldwide. ISDN combines voice and digital 

network services in a single medium, offering customers 

digital data services and voice connections through a 

single wire 

ISDP: I See Dead People 

Tactical-ops, assault on terror gaming clan. See 

http://www.isdp.tk/ (Games) 

ISE: Integrated Software Engineering 

(ISE) 

ISEN: Internet Search Environment Number 

Is the foundation of a portal that comprehensively catalogs 

the Internet's databases. See also http://www.isen.org/ 


I

ISF 

ISF: Information Security Forum 


ISFUG: Integrated Software Federal User 

Group 

ISH: Information Super Highway 

ISHO: Inter-System HandOver 

Transfer of 3G calls to 2G networks mid call and viceversa 

(Network) 

ISI: Information Sciences Institute 

ISI: Internally Specified Index 

ISIS: Image and Scanner Interface Standard 

ISIS: Integrated Systems and Information 

Services 

IS-IS: Intermediate-System to Intermediate- 

System 

The ISO/OSI protocol by which intermediate systems 

exchange routing information 

ISKM: Internet Starter Kit for the Macintosh 

ISL: Inter Switch Link 


ISL: Interactive System Language 

ISLM: Integrated Services Line Module 

ISLN: Integrated Services Local Network 

ISLU: Integrated Services Line Unit 

ISM: Industrial, Scientific, Medical 

Radio frequency band (Communication) 

ISM: Integrated Service Module 

(Hardware) 

ISM: Integrated Switch Module 

(Hardware) 

ISM: Internet Service Manager 

(Microsoft) 

ISMA: Internet Streaming Media Alliance 


ISMF: Interactive Storage Management 

Facility 

ISN: Information Systems Network 

ISN: Initial Sequence Number 

Synchronization between two hosts to establish a TCP 

connection. (Network) 

ISN: Internet School Networking 

(Network) 

ISN: Internet Services Network 

ISN: Internet Shopping Network 

ISN-LAN: Information System Network-Local 

Area Network 

ISO: Independent System Operator 

ISO: International Organization for 

Standardization 

An international standards body that reviews and approves 

independently designed products for use within specific 

industries. ISO also develops standards for information 

exchange, such as the ISO/OSI model for computer 

networks. See http://www.iso.org/ (Organizations) 

ISO/OSI: International Standardization 

Organization/Open Systems Interconnection 

ISOC: Internet SOCiety 


ISODE: International Standardization 

Organization Development Environment 


ISP: Integrated System Peripheral control 

ISP: Interactive String Processor 

ISP: Internet Service Provider 

Communications service company that provides Internet 

access and services to its customers. ISPs range in size 

from small independents serving a local calling area to 

large, established telecommunications companies 

(Network) 

ISP: Interrupt Stack Pointer 

ISP: Interrupt Status Port 

ISPF: Interactive System Programming 

Facility 

ISPP: Internet Secure Payments Protocol 

(Security) 

ITB 

ISQL: Interactive Structured Query Language 

ISR: Information Storage and Retrieval 

ISR: Interrupt Service Routine 


ISR: Interrupt Status Register 

ISS: Internet Security Systems 

(Network) 

ISS: Internet Sharing Software 

(Software) 

ISSA: Information Systems Security 

Association 


ISSCC: International Solid-State Circuits 

Conference 

ISSLL: Integrated Services over Specific Link 

Layers 

(Network) 

ISSLOW: Integrated Services System for LOW 

bitrate lines 

(Network) 

ISSN: Integrated Special Services Network 

ISSN: International Standard Serial Number 

IST: Immerse System Technology 

IST: Initial System Test 

IST: Intelligent Scanning Technology 

ISTG: InterSite Topology Generator 

Managing active directory replication (Operating systems) 

(Microsoft) 

ISUP: ISdn User Part 

Provides the signaling functions necessary to basic bearer 

services and supplementary services for voice and nonvoice 

applications in the Integrated Services Digital 

Network (ISDN) 

ISV: Independent Software Vendor 

A third-party software developer (Software) 

IT: Information Technology 

IT: Integration/Transformation 

Another name for Extract, Transform and Load (ETL) 

(Databases) 

ITA: Interim Type Approval 

ITAA: Information Technology Association of 

America 


ITB: Information Technology Branch 

ITB: Intermediate Text Block 


I

ITC 

ITC: Information Technology Consultant 

An Information Technology (IT) position 

ITC: International Typeface Corporation 

ITDI: Information Technology Pioneer 

International 

ITE: Independent Trading Exchange 

ITE: Information Technology Equipment 

ITF: Interactive Test Facility 

ITI: Information Technology Industry council 

Washington-based trade association representing the 

leading U.S. providers of information technology (IT) 

products and services. See also http://www.itic.org/ 


ITIL: Information Technology Infrastructure 

Library 

iTIP: Icalendar Transport-indendent 

Interoperability Protocol 

Specification that defines the format of calendar 

information sent between calendar user agents. See also 

the RFC 2445 

ITLB: Instruction Tanslation Look-aside 

Buffer 

ITM: Instruction Translation Look-aside 

Buffer 

ITMS: Immediate check Truth Maintenance 

System 

ITN: Identification Tasking and Networking 

ITN: Internet Travel Network 

ITOT: Iso Transport service On top of Tcp 

(Network) 

ITP: Information Technology Practice 

ITP: Information Technology Project 

ITP: Internet Transaction Processing 

ITR: Information Technology Research 

ITR: Input Transaction Record 

ITR: Internet Talk Radio 

ITRS: International Technology Roadmap for 

Semiconductors 


ITS: Incompatible Time-sharing System 

An influential but highly idiosyncratic operating system 

written for the PDP-6 and PDP-10 at MIT and long used at 

the MIT AI Lab (Operating systems) 

ITS: Intelligent Transportation System 

ITS: Internet Transaction Server 

ITSEC: Information Technology Security 

Evaluation Criteria 

ITSO: International Technical Support 

Organization 

(IBM) 

ITSP: Internet Telephone Service Provider 

ITTP: Intelligent Terminal Transfer Protocol 

(Communication) (Ericsson) 

ITU: International Telecommunications Union 

International organization under the auspices of the United 

Nations that develops radio (ITU-R) and 

telecommunications (ITU-T) standards. Prior to 1993, the 

ITU-T Standardization Sector was known as the CCITT 



ITUG: International Telecommunications 

User Group 

ITUSA: Information Technology Users 

Standards Association 

ITU-T: International Telecommunications 

Union Technical standards group 

IYKWIM 

ITU-TIES: International Telecommunications 

Union -Telecom Information Exchange 

Services 

ITU-TSS: International Telecommunications 

Union -Telecommunication Standards Section 

iTV: Interactive TeleVision 

ITX: Intermediate Text Block 

ITYM: I Think You Mean 

(Net lingo) 

IU: Integer Unit 

IUAP: Internet User Account Provider 

IUMA: Internet Underground Music Archive 

IUP: Infrastructure Utility Provider 

IUP: Internet User Population 

(Network) 

IUS/ITB: Interchange Unit 

Separator/Intermediate Transmission Block 

IV: Initialization Vector 

(Security) 

IV&V: Initialization Vector 

IVC: Integrated Visual Computing 

(SGI) 

IVDS: Integrated Voice and Data Systems 

IVDT: Integrated Voice/Data Terminal 

IVIS: Interactive Video Information System 

IVIT: Intelligent Voice Interactive Technology 

IVL: Independent Vendor League 

IVL: Intel Verification Lab 

IVR: Interactive Voice Response 

IVS: Interactive Videodisk System 

IVT: InfoViewer Titles 

(Microsoft) 

IVT: Interrupt Vector Table 

IVTS: International Video Teleconferencing 

Service 

IW: Information Warehouse 

I-WAY: Information highWAY 

IWC: Inside Wire Cable 

IWF: InterWorking Function 

IWS: Intelligent WorkStation 

IWS: Iplanet Web Server 

IXC: IntereXchange Carrier 

A long-distance carrier such as AT&T, MCI and Sprint 


IXF: Integration eXchange Format 

(IBM) 

IYHO: In Your Humble Opinion 

(Net lingo) 

IYKWIM: If You Know What I Mean 

(Net lingo) 


I 

J

J/K 

J/K: Just Kidding 

(Net lingo) 

J2EE: Java 2 platform, Enterprise Edition 


J2ME: Java 2 platform, Micro Edition 


J2SE: Java 2 platform, Standard Edition 


JA: Jump Address 

JA: Jump if Above 

(Software) 

JAAS: Java Authentication and Authorization 

Service 

Is a package that enables services to authenticate and 

enforce access controls upon users. It implements a Java 

version of the standard Pluggable Authentication Module 

(PAM) framework, and supports user-based authorization. 

(Security) (Sun) 

JAD: Joint Application Development 

JADE: Jasmine Application Development 

Environment 

(Databases) (CAI) 

JAE: Java Applet Environment 


JAE: Jump if Above or Equal 

J 

JAF: Javabeans Activation Framework 

With JAF, Java developers can take advantage of standard 

services to determine the type of an arbitrary piece of data, 

encapsulate access to it, discover the operations available 

on it, and to instantiate the appropriate bean to perform 

said operations (Sun) 

JAI: Java Advanced Imaging 

Application programming interface (API) that enables 

developers to easily incorporate high-performance, 

network-enabled, scalable, platform-independent image 

processing into Java technology-based applications and 

applets (Software) (Sun) 

JAIN: Java for the Advanced Intelligent 

Network 

A set of Java technology based APIs which enable the 

rapid development of Next Generation telecom products 

and services on the Java platform (Sun) 

JAM: Just A Minute 

When your in an on-line conversation and you need to put 

the other person on hold while you quickly do something 

(Net lingo) 

JAMES: Java Apache Mail Enterprise Server 

Is a 100% pure Java server, designed to be a complete 

and portable enterprise mail engine solution based on 

currently available open protocols (SMTP, POP3, IMAP, 

HTTP) 

JANET: Joint Academic NETwork 

A U.K. university network (Network) 

JAR: Java ARchive 

JAWS: Jamming And Warning System 

(Hardware) 

JAXB: Java Architecture for Xml Binding 

Architecture that provides an API and tools that automate 

the mapping between XML documents and Java objects 



JCWDE 

JAXM: Java Api for Xml Messaging 

Enables applications to send and receive document 

oriented XML messages using a pure Java API (Software) 

(Sun) 

JAXP: Java Api for Xml Processing 

Enables applications to parse and transform XML 

documents using a pure Java API that is independent of a 

particular XML processor implementation (Software) (Sun) 

JAXR: Java Api for Xml Registries 

Provides a mechanism for publishing available services in 

an external registry, and for consulting the registry to find 

those services (Software) (Sun) 

JAX-RPC: Java Api for Xml-based Remote 

Procedure Call 

Defines a mechanism for exchanging synchronous XMLbased 

messages between applications (Sun) 

JBCL: Java Beans Component Library 

(Software) 

JBE: Jump if Below or Equal 

JBIG: Joint Bi-level Image experts Group 

This was (and is) a group of experts nominated by national 

standards bodies and major companies to work to produce 

standards for bi-level image coding. See also 

http://www.jbig.org/ (Organizations) 

JBOD: Just a Bunch Of Disks 

A storage subsystems using multiple independent disk 

drives, as opposed to one form of RAID or another 

(Hardware) 

JBPC: Java-Based Pipeline Configurator 

JC: Jump if Carry set 

JCA: Java Card Assembly 


JCA: Java Connector Architecture 

(Software) 

JCA: Java Cryptography Architecture 


JCAT: Java Coordination And Transactions 

Includes (but is not limited to) the facilities required for 

applications to be invoked and return results before, during 

or after calls; to process call parameters or subscribersupplied 

information; and to engage in further call 

processing and control (Sun) 

JCC: Java Call Control 

Includes the facilities required for observing, initiating, 

answering, processing and manipulating calls, where a call 

is understood to include (but is not necessarily limited to) 

a multimedia, multiparty session over the underlying 

integrated network (Sun) 

JCE: Java Cryptography Extension 

Is a set of packages that provide a framework and 

implementations for encryption, key generation and key 

agreement, and Message Authentication Code (MAC) 

algorithms (Security) (Sun) 

JCK: Java Compatibility Kit 


JCL: Job Control Language 

(Software) 

JCP: Java Community Process 

Produces high-quality specifications in "Internet time" 

using an inclusive, consensus building approach that 

produces a specification, a reference implementation (to 

prove the specification can be implemented), and a 

technology compatibility kit (Sun) 

JCWDE: Java Card Workstation Development 

Environment 



J

JDBC 

JDBC: Java DataBase Connectivity 

(Databases) 

JDC: Java Developer Connection 

(Sun) 

JDE: Java Development Environment 

JDEE: Java Development Environment for 

Emacs 

JDF: Job Description Format 

JDI: Java Debug Interface 


JDIC: JDesktop Integration Components 

Project that aims to make Java technology-based 

applications first-class citizens of current desktop 

platforms without sacrificing platform independence. Its 

mission is to enable seamless desktop/Java integration 

(Software) 

JDJ: Java Developer's Journal 

JDK: Java Development Kit 


JDMK: Java Dynamic Management Kit 

Is the foundation for building and distributing network 

management intelligence into applications, networks and 

devices. It is the first compatible implementation of the 

JMX specification (Sun) 

JDNC: Java Desktop Network Components 

Aims to provide the shortcuts required to construct 

desktop applications in significantly less time by reducing 

the learning, design, and coding requirements (Software) 

JDO: Java Data Objects 

Is an application programming interface (API) for 

transparent database access. The programmer can write 

code in the Java programming language that transparently 

accesses the underlying data store, without using 

database-specific code (Databases) (Sun) 

JDOM: Java Document Object Model 

Java-oriented API for reading and writing XML documents 

JDOQL: Java Data Objects Query Language 

(Software) 

JDSL: Java Data Structures Library 

(Software) 

JDT: Java Development Toolkit 

Project that provides tool plug-ins that implement a Java 

IDE that supports the development of Java applications 

including Eclipse plug-ins.The JDT project allows Eclipse 

to be a development environment for itself. See 

www.eclipse.org (Software) 

JDWP: Java Debug Wire Protocol 

(Sun) 

JE: Jump if Equal 

JEDEC: Joint Electronic Devices Engineering 

Council 

JEIDA: Japanese Electronics Industry 

Development Association 

JEITA: Japanese Electronics and Information 

Technology industries Association 


JEPI: Joint Electronic Payment Initiative 

JERI: Jini Extensible Remote Invocation 


JES: Java Embedded Server 

(Sun) 

JES: Job Entry System 


JESI: Java Edge Side Include 

(Software) 

JESS: Java Expert System Shell 

A CLIPS expert system written for Java (Software) 

JET: Joint Engine Technology 


JET: Jpeg Enhancement Technology 

JFC: Java Foundation Classes 

(Software) 

JFET: Junction Field Effect Transistor 

JFIF: Jpeg File Interchange Format 

JFS: Journalized File System 


JG: Jump if Greater 

JGE: Jump if Greater or Equal 

JGF: Java Graphics Format 

JGSS: Java Generic Security Service 

(Sun) 

JIC: Just In Case 

(Net lingo) 

JIMI: Java Image Management Interface 

(Sun) 

JIPS: Janet Internet Protocol Service 

JIS: Japan Industrial Standard 

JISC: Japanese Industrial Standards 

Committee 

JIT: Just In Time 

Programs compilation technique (Software) 

JITA: Just In Time Activation 

Allows an objects to tell COM+ that its work is done and 

that it can be destroyed (Software) (Microsoft) 

JITC: Just In Time Compiler 

JJ: Just Joking 

(Net lingo) 

JK: Just Kidding 

(Net lingo) 

JKS: Java KeyStore 

(Security) 

JL: Jump if Less 

JLE: Japanese Language Environment 

JLE: Jump if Less than or Equal to 

JLF: Java Layered Framework 

Set of Java code to provide a foundation for faster Java 

software development (Software) 

JLIP: Joint Level Interface Protocol 

JLS: Java Language Specification 

(Sun) 

JMAPI: Java Management Application 


(Sun) 

JMF: Java Media Framework 


JMM 

JMI: Java Metadata Interface 

Implements a dynamic, platform-neutral infrastructure that 

enables the creation, storage, access, discovery, and 

exchange of metadata (Software) (Sun) 

JMM: Java Memory Model 

(Software) 


J

JMP 

JMP: JuMP 

(Software) 

JMS: Java Message Service 

JMSC: Japanese Midi Standard Committee 

JMX: Java Management eXtension 

Formerly known as LMAPI (Sun) 

JNA: Jump if Not Above 

JNAE: Jump if Not Above or Equal 

JNB: Jump if Not Below 

JNBE: Jump if Not Below or Equal 

JNDI: Java Naming and Directory Interface 

Is a standard extension to the JavaTM platform, providing 

Java technology-enabled applications with a unified 

interface to multiple naming and directory services in the 

enterprise (Sun) 

JNG: Jump if Not Greater 

JNGE: Jump if Not Greater or Equal 

JNI: Java Native Interface 

(Sun) 

JNLE: Jump if Not Less or Equal 

JNLP: Java Network Launching Protocol 

(Sun) 

JNO: Jump if No Overflow 

JNP: Jump if No Parity 

JNS: Jump if No Sign 

JNZ: Jump if Not Zero 

JODE: Java Optimize and Decompile 

Environment 

(Software) 

JOE: Java Objects Everywhere 

JOHNNIAC: JOHn Neumann Integrator and 

Automatic Computer 

JOOP: Journal of Object Orientated 

Programming 

JOSS: Johnniac Open Shop System 

JOSS: Joint Object Services Submission 

JOVE: Jonathan's Own Version of Emacs 

JOVIAL: Jules Own Version of the 

International Algorithmic Language 

JPDA: Java Platform Debugger Architecture 

Multi-tiered debugging architecture that allows tools 

developers to easily create debugger applications which 

run portably across platforms, virtual machine (VM) 

implementations and SDK versions (Software) (Sun) 

JPE: Jump if Parity Even 

JPEG: Joint Photographic Experts Group 

A joint venture of the CCITT and ISO that developed a 

standard for compressing gray-scale or color still images 

JPG: Joint Photographic experts Group 

Filename extension (short for JPEG) 

JPL: Jet Propulsion Laboratory 

JPLDIS: Jet Propulsion Laboratory Display 


JPNF: Join-Projection Normal Form 

JPO: Jump if Parity Odd 

JRB: Java Relational Binding 

(Software) 


JRE: Java Runtime Environment 

(Software) 

JRI: Java Runtime Interface 

Native interface proposed by Netscape (Software) 

(Netscape) 

JRMP: Java Remote Method Protocol 

(Software) 

JRP: Joint Requirement Planning 

JS: JavaScript 

(Software) (Netscape) 

JS: Jump if Sign 

JSA: Japanese Standards Association 

JTAG 

JSAPI: Java Speech Application Programming 

Interface 


JSC: Java Swing Connection 

(Sun) 

JSCP: Java Software CoProcessor 

JSDK: Java Servlet Development Kit 

(Software) 

JSDT: Java Shared Data Toolkit 

JavaTM Shared Data Toolkit 


JSF: Java Server Faces 

Technology that simplifies building user interfaces for 

JavaServer applications. Developers of various skill levels 

can quickly build web applications by assembling reusable 

UI components in a page and connecting these 

components to a data source (Software) (Sun) 

JSGF: JSpeech Grammar Format 

JSML: JSpeech Markup Language 

JSP: JavaServer Pages 

(Software) 

JSPA: Java Specification Participation 

Agreement 

(Sun) 

JSPC: JavaServer Pages Compiler 

(Software) 

JSR: Java Specification Request 

Is the actual description of a proposed and final 

specification for the Java platform (Sun) 

JSS: Java Security Service 

Java interface to Network Security Service (NSS). It 

supports most of the security standards and encryption 

technologies supported by NSS. JSS also provides a pure 

Java interface for ASN.1 types and BER/DER encoding 

JSS: Javascript Style Sheet 

JSSE: Java Secure Socket Extension 

Is a set of Java packages that enable secure Internet 

communications. It implements a Java version of SSL and 

TLS protocols and includes functionality for data 

encryption, server authentication, message integrity, and 

optional client authentication (Software) (Sun) 

JST: Japan Standard Time 


JSTL: Jsp Standard Tag Library 

JSWDK: JavaServer Web Development Kit 


JTA: Java Transaction Api 

(Sun) 

JTAG: Joint Test Action Group 

(Hardware) 


J

JTAPI 

JTAPI: Java Telephony Application 


(Sun) 

JTB: Jump Trace Buffer 

JTC: Join Transitive Closure 

Allows the DBMS optimizer to consider a join order other 

than those made available explicitly by the query's WHERE 

clause (Databases) (Sybase) 

JTC: Joint Technical Committee 

JTM: Job Transfer and Manipulation 

JTMS: Justification based Truth Maintenance 

System 

JTS: Java Transaction Service 

JTSIN: Joint Transmission Services 

Information Network 

JUG: Java User Group 

JUGHEAD: Jonzy's Universal Gopher 

Hierarchy Excavation And Display 

JUMP: Java User Migration Path 


JUNET: Japan Unix NETwork 

JVM: Java Virtual Machine 

JVMDI: Java Virtual Machine Debug Interface 

(Sun) 

JVMPI: Java Virtual Machine Profiler Interface 

JVS: Java Validation Suite 

(Software) 

JWS: Java Web Server 

(Sun) 

JWS: Java Web Start 

Gives you the power to launch full-featured applications 

with a single click from your Web browser. You can now 

download and launch applications without going through 

complicated installation procedures (Software) (Sun) 

JWSDL: Java Web Service Description 

Language 

Provides a standard set of APIs for representing and 

manipulating services described by Web Service 

Description Language (WSDL) documents (Sun) 

JWSDP: Java Web Services Developer Pack 

The Java Web Services Developer Pack is an all-in-one 

download containing key technologies to simplify building 

of web services using the Java 2 Platform (Software) (Sun) 

JXTA: JuXTApose 

Started as a research project at Sun Microsystems, its 

goal is to explore a vision of distributed network computing 

using peer-to-peer topology, and to develop basic building 

blocks and services that would enable innovative 

applications for peer groups (Software) 

JZ: Jump if Zero 

k: Kilo 


K&R: Kernighan And Ritchie 

"Traditional" or "classic" C language specification, named 

after its authors, Brian Kerninghan and Dennis Ritchie 

(Software) 

K 

KAM: Keep Alive Memory 

KAS: Kiva Administrative Server 



KB: KeyBoard 

(Hardware) 

kb: KiloBit 

kB: KiloByte 

1024 bytes 

KB: Knowledge Base 

KBD: KeyBoarD 

KBE: Knowledge Based Engineering 

KBMS: KeyBoard/MouSe 

Connector. It's simply a duplicate of the PS/2 ports and 

it's used to connect other devices that use the PS/2 

without having to give up the keyboard and mouse, and 

also is convenient for things that you need to mount 

internally (Hardware) 

kbps: KiloBits Per Second 


kBps: KiloBytes Per Second 


KBS: Knowledge-Based System 

KJS 

KCC: Knowledge Consistency Checker 

A domain service that creates and modifies the replication 

topology of Active Directory (Network) (Microsoft) 

KCS: Kansas City Standard 

Recording standard (Hardware) 

KCS: Kiva C++ Server 


KD: Kernel Debugger 


KDC: Key Distribution Center 

KDE: K Desktop Environment 

KDS: Knowledge Discovery Server 

(Lotus) 

KDT: Key Definition Table 

KEA: Key Exchange Algorithm 

(Security) 

KEFIR: KEy FIndings Reporter 

KERMIT: Kl-10 Error-free Reciprocal Micro 

Interconnect over Tty lines 

KES: Key Escrow System 

KFM: K FIle Manager 

KFX: KoFaX 

File Format for fax transmission 

KHG: Kernel Hacking Guide 

KHz: KiloHertZ 

KiB: KibIByte 



bytes 

KIF: Knowledge Interchange Format 

KIPS: Kilo Instruction Per Second 


KIR: Kyocera Image Refinement 

(Hardware) 

KIS: Knowbot Information Service 

KISS: Keep It Simple, Stupid 

KIT: Kernel software for Intelligent Terminals 

KJS: Kiva Java Server 



J 

K

KM 

KM: Keyboard Monitoring 

KM: Knowledge Management 

KMA: Kiss My A** 

(Net lingo) 

KMS: Key Management Server 

Mostly used in Microsoft Exchange to issue security 

certificates (Security) (Microsoft) 

KNI: Katmai New Instruction 

(Intel) 

KOS: Kill On Site 

(Games) 

KPA: Key Process Area 

(Software) 

KPCMS: Kodak Precision Color Management 

System 

(Software) (Kodak) 

KPDL: Kyocera Page Description Language 

(Hardware) 

KPF: Kerio Personal Firewall 

(Security) 

KPI: Kernel Programming Interface 

KPI: Key Performance Indicator 

KQML: Knowledge Query and Manipulation 

Language 

KRS: Knowledge Retrieval System 

KSAM: Keyed Sequential Access Method 

Accessing a flat file using a simple or compound key 

(Software) (HP) 

KSDS: Keyed Sequential Data Set 

KSE: Kernel Scheduled Entitiy 


KSH: Korn SHell 

KSPH: KeyStrokes Per Hour 

KSR: Keyboard Send Receive 

(Hardware) 

kVA: Kilo Volt-Ampere 

Electric power measurement unit (Hardware) 

kVAh: Kilo Volt Ampere Hour 

Electrical energy measurement unit (Hardware) 

KVM: K Virtual Machine 

A virtual machine designed from the ground up with the 

constraints of inexpensive mobile devices in mind (Sun) 

KVM: Keyboard, Video, Mouse 

(Hardware) 

KWIC: Key Word In Context 

A permuted index offering lists of titles, with each of the 

major words as the first word, and the remaining words 

using key words or phrases 

KWS: Knowledge Work System 

KXS: Kiva eXecutive Server 


L&F: Look & Feel 

(Software) 

L 

L&H: Lernout And Hauspie 

L1: Level 1 

(Hardware) 


L2: Level 2 

(Hardware) 

L2CAP: Logical Link Control and Adaptation 

Protocol 

L2F: Layer 2 Forwarding 


L2TP: Layer 2 Tunneling Protocol 

(Network) 

LA: Limited Availability 

LART 

LAC: L2tp Access Concentrator 

Device attached to the switched network or located on an 

end system supporting L2TP to pass PPP traffic (Network) 

LACP: Link Aggregation Control Protocol 

Part of an IEEE specification (802.3ad) that allows to 

bundle several physical ports together to form a single 

logical channel (Network) 

LADDR: LAyered Device DRiver 

(Microsoft) 

LADT: Local Access Data Transport 

LAF: Look And Feel 

(Software) 

LALL: Longest Allowed Lobe Length 

LAM: Local Area Multicomputer 

LAME: Lame Ain't an Mp3 Encoder 

(Software) 

LAMP: Linux, Apache, Mysql, Perl (or Php or 

Phyton) 

Web applications platform (Software) 

LAN: Local Access Network 

LAN: Local Area Network 

Data communications network connecting computers and 

related equipment, usually over an area not greater than 

10 km (Network) 

LANACS: Local Area Network Asynchronous 

Connection Server 

LANAID: LAN Adapter Installation and 

Diagnostic 

(Network) 

LANCE: Local Area Network Controller 

Ethernet 

LANDP: Local Area Network Distributed 

Platform 

LANE: Local Area Network Emulation 

A set of services and protocols that provide for the 

emulation of LANs, using ATM as a backbone to allow 

connectivity among LAN and ATM attached end stations 

(Network) 

LAP: Link Access Procedure 

Communication protocol (CCITT X.25) (Network) 

LAP: Linux Application Platform 

LAPB: Link Access Procedure Balanced 

(Network) 

LAP-B: Link Access Procedure-Balanced 

LAPD: Link Access Procedure-D channel 


LAPM: Link Access Procedure for Modems 

LAPS: Lan Adapter and Protocol Support 

LAR: Load Access Rights 

LART: Luser Attitude Readjustment Tool 


K 

L

LASER 

LASER: Light Amplification by the Stimulated 

Emission of Radiation 

LASS: Local Area Signaling Service 

LASTport: Local Area Storage TransPORT 

Protocol (DEC) 

LAT: Local Access Terminal 

LAT: Local Address Table 

A table containing the IP address range that is inside a 

firewalled network (Network) (Microsoft) 

LAT: Local Area Transport 

(Network) 

LATA: Local Access and Transport Area 

Local telephone company's geographical area 


LATM: Local Asynchronous Transfer Mode 

LAVC: Local Area Vax Cluster 

LAWN: Local Area Wireless Network 

LB: Local Bus 


LBA: Logical Block Addressing 

LBL: LaBeL 

LBM: Local Bus Master 

LBOT: Logical Beginning of Tape 

(Hardware) 

LBR: LiBraRian 

LBT: Listen Before Talk 

LBT: Local Bus Targets 

LBX: Local Bus Accelerator 

LBX: Low-Band with X 

LC: Liquid Crystal 

(Hardware) 

LCA: Life-Cycle Assessment 

LCA: Logic Cell Array 

LCA: Lotus Communications Architecture 

(Lotus) 

LCC: Leadless Chip Carrier 

(Hardware) 

LCCM: LanClient Control Manager 

(IBM) 

LCD: Liquid Crystal Display 

(Hardware) 

LCD: Loss of Cell Delineation 

LCD: Lowest Common Denominator 

LCDUI: Liquid Crystal Display User Interface 

(Software) 

LCE: Link Control Entity 


LCF: Lightweight Client Framework 

LCF: Low Cost Fiber 

Lch: Luminance Chrominance Hue 

Color model (Hardware) 

LCI: Lan Connect Interface 

(Hardware) 

LCID: Language Code IDentifier 

LCID: LoCale IDentifier 


LCK: Library Construction Kit 

(Microsoft) 

LCM: Landesk Configuration Manager 

(Operating systems) (Intel) 

LCM: Leaf Creation Method 

LCM: Life-Cycle Management 

(Software) 

LCN: Logical Cluster Number 


LCOS: Liquid Crystal On Silicon 

(Hardware) 

LCP: Link Control Protocol 

Part of the point-to-point protocol (PPP) to establish, 

configure, and test data link connections (Network) 

LCR: Least Cost Routing 

(Network) 

LCR: Line Control Register 

LCS: Laboratory for Computer Science 

MIT's department 

LCS: Lotus Communication Server 

LCSD: Laminate Chip Signal Diode 

LCT: Last Compliance Time 

LCU: Last Cluster Used 

LD: Laser Disc 

(Hardware) 

LD: Link Dead 

When a link between two points goes dead (disconnects) 

(Net lingo) 

LDP 

LD: LoaD 

Same as MOV (move). The Zilog Z80, for instance, used 

LD as the assembler opcode for what Intel called MOV 

(move) because of copyright issues (machine code was the 

same) (Software) 

LDA: Logical Device Address 

LDAP: Lightweight Directory Access Protocol 

A standardized TCP/IP protocol for access to a central 

X.500-based directory that is shared by many different 

services. Many vendors plan to use LDAP to access policy 

information stored on third-party directories (Network) 

LDC: Lotus Development Corporation 

LDCM: LanDesk Client Manager 

LDDS: Long Distance Discount Services 

LDGW: Lotus Domino Go Webserver 


LDI: Lvds Digital Interface 

(Hardware) 

LDIF: Ldap Data Interchange Format 

File format suitable for describing directory information or 

modifications made to directory information. It is typically 

used to import and export directory information between 

LDAP servers or to describe a set of changes to be applied 

to a directory (Communication) 

LDM: Logical Disk Manager 

LDM: Long Distance Modem 

LDMS: LanDesk Management Suite 

LDP: Label Distribution Protocol 

A fundamental concept in Multi Protocol Label Switching is 

that two Label Switching Routers must agree on the 

meaning of the labels used to forward traffic between and 

through them (Network) 

LDP: Linux Document Project 


L

LDP 

LDP: Loader Debugger Protocol 

LDT: Lightning Data Transport 

(Hardware) (AMD) 

LDT: Local Descriptor Table 

LE: Less than or Equal 

(Software) 

LE: Light Edition 

(Software) 

LE: Limited Edition 

(Software) 

LEA: Load Effective Address 

LEAD: Live Early Adoption and Demonstration 

LEAF: Law Enforcement Access Field 

LEAP: Lightweight Extensible Authentication 

Protocol 

(Cisco) 

LEAS: Lata Equal Access System 

LEC: Lan Emulation Client 

(Network) 

LEC: Layered Error Correction 

LEC: Local Exchange Carrier 

Local telephone company such as Pacific Bell, 

Southwestern Bell, Bell Atlantic, etc. (Communication) 

LECS: Lan Emulation Configuration Server 

See also LES (Network) 

LED: Light Emitting Diode 

(Hardware) 

LEL: Link, Embed and Launch-to-edit 

(Lotus) 

LEM: Language Extension Module 

LEN: Low Entry Networking 

LEO: Low Earth Orbit 

LEOT: Logical End Of Tape 

(Hardware) 

LEP: Light Emitting Polymer 

(Hardware) 

LER: Label Edge Router 

(Hardware) 

LES: Lan Emulation Server 

(Network) 

LES: Language Engineering Services 

LEX: LEXicon 

LF: Line Feed 

An instruction to a certain computer or printer to move 

down one line, without moving the cursor or print head. 

Also used as a terminator 

LF: Login Facility 

LFAP: Lightweight Flow Admission Protocol 

LFH: Low Force Helix 

Connector pin type (Hardware) 

LFI: Last File Indicator 

LFM: Log File Monitor 

LFN: Long FileName 

LFR: Logical Forms Recognition 

(Software) 

LFS: Linux From Scratch 

Project that provides you with the steps necessary to build 

your own custom Linux system 


LFT: Low Function Terminal 

(IBM) 

LFU: Least Frequently Used 

LGA: Land Grid Array 

Integrated circuit (IC) packaging that uses small flat 


LGA: Leadless Grid Array 

Integrated circuit (IC) packaging. Synonym of Land Grid 

Array (Hardware) 

LGDT: Load Global Descriptor Table 

LISP 

LGPL: Lesser General Public License 

An evolution of the Library General Public License (GNU) 

LGPL: Library General Public License 

(GNU) 

LGX: Linux/Gnu/X 

LIAS: Library Information Access System 

LIB: LIBrary 


LIC: Licensed Internal Code 

LIC: Line Interface Coupler 

(IBM) 

LICS: Lotus International Character Set 

LIDE: Light emitting diode In-Direct Exposure 

Scanner technology (Hardware) (Canon) 

LIDT: Load Interrupt Descriptor Table 

LIEP: Large Internet Exchange Packet 

(Novell) 

LIF: Low Insertion Force 

LIFE: Logistics Interface For manufacturing 

Environment 

LIFO: Last In First Out 

(Hardware) 

LILO: Last In Last Out 

(Hardware) 

LILO: LInux LOader 

LIM: Lotus/Intel/Microsoft 

LIMA: Lotus/Intel/Microsoft/Ast 

LIMDO: Light Intensity Modulation Direct 

Overwrite 

LIMM: Light Intensity Modulation Method 

LIMOS: Laser Intensity MOdulation System 

LIMS: Library Information Management 

System 

LIP: Large Internet Packet 

LIPS: Lightweight Internet Person Schema 

LIPS: Logical Inferences Per Second 

LIPS: Logical Instruction Per Second 

Processing Speed 

LIR: Local Internet Registry 

(Network) 

LIS: Library and Information Science 

LIS: Logical Ip Subnet 

LISC: Local Interconnection Service Center 


LISP: LISt Processor 



L

LITHP 

LITHP: LInk Type description language for 

HyperText Processing 

LIU: Lan Interface Unit 

LIW: Long Instruction Word 

(Hardware) 

LK: LocK 

Lock file (Operating systems) 

LKG: Last Known Good 


LLB: Local Location Broker 

LLC: Logical Link Control 

Token Ring link protocol (IEEE 802.2) (Network) 

LLDT: Load Local Descriptor Table 

LLF: Low Level Format 

LLL: Low-Level Language 

(Software) 

LLN: Line Link Network 

LLNL: Lawrence Livermore National 

Laboratory 

(IBM) 

LM: Lan Manager 


LM: License Manager 

LM: Link Manager 

LM/X: Lan Manager for uniX 

LMA: Lightspeed Memory Architecture 

(Hardware) (nVidia) 

LMAO: Laughing My A** Off 

(Net lingo) 

LMB: Left Mouse Button 

LMB: Local Master Browser 

(Network) 

LMBCS: Lotus Multi-Byte Character Set 

(Lotus) 

LMD: Last Modification Date 

LMDS: Local Multipoint Distribution System 


LME: Layer Management Entity 

LMFAO: Laughing My F***ing A** Off 

(Net lingo) 

LMI: Link Management Interface 

LMI: Local Management Interface 

LMK: Let Me Know 

(Net lingo) 

LMKHIW: Let Me Know How It Works 

When sending data to someone that should fix a problem. 

(Net lingo) 

LMM: Logical Memory Manager 


LMOS: Leave Mail On Server 

LMP: Link Manager Protocol 

LMS: Lan Management Solution 


LMS: Learning Management System 

LMS: Library Management System 

LMS: Lotus Messaging Switch 

(Lotus) 


LMSW: Load Machine Status Word 

LMU: Lan Management Utilities 

(IBM) 

LMU: Lan Manager for Unix 

LN: Load Number 

LN: Logarithm Natural 

Base e 

LN:DI: Lotus Notes:Document Imaging 

LNBF: Low-Noise Block receiving horns with 

integrated Feeds 


LNK: LiNK 


LNP: Local Number Portability 


LNS: L2tp Network Server 

Maintains L2TP sessions with whatever is connected to 

the LAC (Network) 

LO: helLO 

(Net lingo) 

LOB: Large OBject 

(Databases) 

LOB: Line-Of-Business 

LOB: Low-Order Byte 

LOC: Lines Of Code 

LOC: Loop Online Control 

LOCIS: Library Of Congress Information 

System 

LOD: Level Of Detail 

LODSB: LOaD String Byte 

LOF: Loss of Frame 


LOP 

LOFS: LOopback File System 

A file system type that lets the user create a new virtual 

file system. The user can access files using an alternative 

path name (Operating systems) 

LOG: LOGarithm 

Base 10 

LOGML: LOG Markup Language 

XML application designed to describe log reports of web 

servers 

LOL: Laughing Out Loud 

(Net lingo) 

LOL: Lots Of Love 

(Net lingo) 

LOM: Lan On Motherboard 

This is a network device that is built onto the motherboard 

(or baseboard) of the machine (Hardware) 

LON: Lan On Notebook 

(Hardware) 

LON: Local Operating Network 

LOOPE: LOOP while Equal 

LOOPNE: LOOP while Not Equal 

LOOPNZ: LOOP while Not Zero 

LOOPS: Lisp Object Oriented Programming 

System 

LOOPZ: LOOP while Zero 

LOP: Loss of Pointer 


L

LORE 

LORE: Line Oriented Editor 

LOS: Loss of Signal 


LOTOS: Language Of Temporal Order 

Specification 

LOV: List Of Values 

LP: Linear Programming 

LP: Logical Partition 

LPAR: Logic Programming and Automated 

Reasoning 

LPAR: Logical Partition 


LPB: Local Peripheral Bus 

LPB: Low Ping Bastard 

Network multiplayer games attribute (Software) 

LPC: Lightweight Procedure Call 

(Software) 

LPC: Linear Predictive Coding 

LPC: Local Procedure Call 

LPC: Low Pin Count 

(Hardware) 

LPCM: Linear Pulse Code Modulation 


LPD: Line Printer Daemon 

LPDP: Line Printer Daemon Protocol 

LPDU: Logical Protocol Data Unit 

LPF: League for Programming Freedom 

lpi: Lines Per Inch 

LPI: Linux Professional Insitute 

Serves the community of Linux and open source software 

users vendors and developers, in the interest of increasing 

and supporting professional use of such software 

throughout world. See also http://www.lpi.org/ 


LPL: Logical Page List 

(Databases) 

LPL: Lotus Programming Language 

(Lotus) 

lpm: Lines Per Minute 

Printing speed (Hardware) 

LPM: Logical Process Manager 


LPN: Logical Page Number 

LPP: Land Pre-Pits 

Addressing aid in writing DVD-R (Hardware) 

LPP: Licensed Program Product 

LPPL: Latex Project Public License 

See http://www.latex-project.org/lppl.html 

LPR: Line PRinter 

LPR: Line Printer Remote 

LPRA: Low Power Register Array 

(Hardware) 

lps: Lines Per Second 

Printing speed (Hardware) 

LPS: Low Power Schottky 

(Hardware) 

LPT: Line PrinTer 

(Hardware) 


LPWA: Lucent Personalized Web Assistant 

Anonymous web browsing service 

LPX: Low Profile Extended 

Motherboard format (Hardware) 

LQ: Letter Quality 

LQM: Link Quality Monitoring 

LR: Link Register 

LR: Logical Record 

LRC: Local Register Cache 

LRC: Longitudinal Redundancy Check 

LSN 

LRF: Little Rubber Feet 

Support devices for computer cases and other equipments 

(Hardware) 

LRL: Least Recently Loaded 

LRM: Language Reference Manual 

LRM: Least Recently used Master 

LRMP: Lightweight Reliable Multicast Protocol 

(Network) 

LRPC: Lightweight Remote Procedure Call 

(Software) 

LRS: Language ReSource 


LRS: Line Repeater Station 

LRSN: Log Record Sequence Number 

(Databases) 

LRU: Least Recently Used 

LS: Laser Servo 

(Hardware) (Compaq) 

LS: Library Server 

LS: License Server 

LS: Login Server 

(Security) 

LSA: Lan and Scsi Adapter 

(IBM) 

LSA: Line Sharing Adapter 

LSA: Link State Advertisement 

(Network) 

LSA: Local Security Authority 


LSAPI: License Services Application 


LSAS: Local Security Authentication Server 

Verifies validity of user logons to PC/Server. (Operating 


LSB: Least Significant Bit (or Byte) 

LSC: Least Significant Character 

LSD: Least Significant Digit 

LSE: Language Sensitive Editor 

LSI: Large Scale of Integration 

IC manufacturing integration level: it's the process of 

placing from 3,000 to 100,000 transistors on one chip 

(Hardware) 

LSL: Link Support Layer 

LSL: Load Segment Limit 

LSMS: Lucent Security Management Server 

(Lucent) 

LSN: Log Sequence Number 


L

LSN 

LSN: Logical Sector Number 

LSNP: Loop Service with Number Portability 


LSP: Label Switched Path 

LSP: License Service Provider 

An Netware Loadable Module (NLM) that responds to 

requests from NetWare Licensing Services (NLS) clients 

and licensing service managers for licensing information or 

license units (Novell) 

LSR: Label Switch Router 

in MPLS, LSRs function to read the incoming label, remove 

it, and then based on its FEC, append a new Label to it 

(Network) 

LSR: Link State Routing 

LST: Linux Support Team 

LST: LiST 


LT: Less Than 

(Software) 

LT: Local Team 

As in Rational ClearCase LT (Software) (Rational) 

LTC: Longitudinal Time Code 

LTE: Line Terminating Equipment 

LTF: Leap To Frogans 


LTNS: Long Time No See 

(Net lingo) 

LTO: Linear Tape Open 

(Hardware) 

LTO: Locate-To-Order 

LTPS: Low-Temperature PolySilicon 

(Hardware) 

LTR: Left-To-Right 

LTR: LeTteR 

LTR: Load Task Register 

LTS: Leaning Toothpick Syndrome 

Expresses readability in PERL regular expressions 

(Software) 

LTSS: Long Term Station Statistics 

LU: Logical Unit 

LU6.2: Logical Unit 6.2 

LUA: Logical Unit Application 

LUG: Linux User Group 

LUG: Local Users Group 

LUI: Local User Input 

LUIS: Library User Information Service 

LUN: Logical Unit Number 

SCSI subaddressing (Hardware) 

LUNI: Lane User Network Interface 

LUS: LookUp Service 

Provides the functionality to discover and register services 

(Software) 

LUT: LookUp Table 

LUW: Logical Unit of Work 

LV: Logical Volume 

(IBM) 

LV: Low Voltage 

(Hardware) 


LVCS: Logility Value Chain Solution 

(Software) 

LVD: Low Voltage Differential 

(Hardware) 

LVDS: Low Voltage Differential Signalling 

(Hardware) 

mA 

LVM: Logical Volume Manager 

Provides a higher-level view of the disk storage on a 

computer system than the traditional view of disks and 

partitions. This gives the system administrator much more 

flexibility in allocating storage to applications and users 


LVM: Low Voltage Differential Signaling 

(IBM) 

LVQ: Learning Vector Quantization 

LW: Lazy Write 

LW: Length Width 

LWP: LightWeight Process 

A class of processes that share resources with each other 

and therefore use fewer resources than ordinary processes 


LWP: Lotus WordPro 

File format for documents 

LWT: Lightweight Windowing Toolkit 

LY: Love You 

(Net lingo) 

LYL: Love Ya Lots 

(Net lingo) 

LYLAB: Love Ya Like A Brother 

(Net lingo) 

LYLAS: Love Ya Like A Sister 

(Net lingo) 

LZ: Landing Zone 

(Hardware) 

LZ: Lempel-Ziv 

LZH: Lempel-Ziv-Haruyasu 

Compression algorithm derived from the LZSS scheme with 

a sliding window and additional compression applied to the 

output of the LZSS compressor by dynamic Huffman coding 

(Software) 

LZMA: Lempel-Ziv Modified Algorithm 

Compression algorithm (Software) 

LZS: Lempel-Ziv-Stac 


LZSS: Lempel-Ziv-Storer-Szymanski 


LZW: Lempel-Ziv-Welch 


LZX: Lempel-Ziv eXtended 


M: Mega 


m: Milli 


M 

M4IF: Mpeg-4 Industry Forum 

See http://www.m4if.org/ (Organizations) 

MA: Migration Agent 

(Communication) (Novell) 

mA: Milliampere 


L 

M

MAB 

MAB: Multi-Architecture Binary 

(Software) 

MABO: Multiplier-Arithmetic BOlton 

MAC: MACro 


MAC: Mandatory Access Control 

(Security) 

MAC: Media Access Control 

(Network) 

MAC: Message Authentication Code 

(Security) 

MAC: Move, Add, Change 

Abbreviation for a specific task request (Network) 

MAC: Multiple Access Computers 

MAC: Multiplexed Analog Component 

A color standard that transmits three color components in 

time-compressed serial analog form (Hardware) 

MAC: Multiply ACcumulate 


MACH: Multilayer ACtuator Head 

(Epson) 

MACS: Mail order And Catalog System 

MACS: Modem Access Control System 

MAD: Microsoft Active Directory 


MAD: Mpeg Audio Decoder 

(Software) 

MADCAP: Multicast Address Dynamic Client 

Allocation Protocol 

Protocol that allows hosts to request multicast address 

allocation services from multicast address allocation 

servers. This protocol is part of the Multicast Address 

Allocation Architecture being defined by the Multicast 

Address Allocation Working Group (Communication) 

MADD: Multiply-ADD 


MADE: Manufacturing and Automated Design 

Engineering 

MADYMO: MAthematical DYnamic MOdeling 

MAE: Macintosh Application Environment 

MAE: Merit Access Exchange 

MAE: Metropolitan Area Exchange 

MAGIC: Multi-dimensional Applications 

Gigabit Internetworking Consortium 


MAGMA: Minimal Architecture for Generalized 

Markup Applications 

mAh: MilliAmpere per Hour 

MAI: Multiple Applications Interface 

MAJC: Microprocessor Architecture for Java 

Computing 

(Sun) 

MAM: Memory Allocation Map 

MAME: Multi-Arcade Machine Emulator 

MAN: MANual 


MAN: Metropolitan Area Network 

Between a LAN and WAN in size and scope (Network) 


MANIAC: Mathematical Analyzer Numerical 

Integrator And Computer 

MAO: Machine Account Object 


MAU 

MAOS: Multiple Application Operating System 


MAP: Maintenance Analysis Procedures 

MAP: Management and Administration 

Platform 

MAP: Manufacturing Automation Protocol 

MAP: Migration Assistance Program 

MAP: Mobile Application Part 

Adds functionality for mobile text applications to the Public 

Land Mobile Network (PLMN). MAP handles numerous 

services for text messaging to and from mobile terminals, 

for example Short Message Service Centres in GSM 

Networks 

MAP/TOP: Manufacturing Automation 

Protocol Technical Office Protocol 

MAPE: Mean Absolute Percentage Error 

MAPI: Messaging Application Programming 

Interface 

(Microsoft) 

MAPICS: Manufacturing, Accounting and 

Production Information Control System 

(IBM) 

MAPOS: Multiple Access Protocol Over 

Sonet/sdh 

(Network) 

MAPS: Mail Abuse Prevention System 

MAPS: Mcis Administration and Provisioning 

Service 

(Microsoft) 

MAR: Memory Address Register 

(Hardware) 

MARC: MAchine Readable Cataloging 

MARC: Multitechnology Automated Reader 

Card 

MARS: Multicast Address Resolution Server 

(Network) 

MARVEL: Machine-Assisted Realization of the 

Virtual Electronic Library 

MAS: Microsoft Authorized Support 

(Microsoft) 

MAS: Multi-Agent System 

(Software) 

MASM: Macro ASseMbler 


MASS: Maximum Availability and Support 

Subsystem 

MAT: Maintenance Access Terminal 

MathML: MATHematical Markup Language 

XML application for describing mathematical notation and 

capturing both its structure and content. The goal of 

MathML is to enable mathematics to be served, received, 

and processed on the Web, just as HTML has enabled this 

functionality for text 

MAU: Media Attachment Unit 

(Network) 

MAU: Multistation Access Unit 

(Network) 


M

MAVDM 

MAVDM: Multiple Application Virtual Dos 

Machine 

MAVICA: MAgnetic VIdeo CAmera 


MAW: Microsoft At Work 

MAX: MAssively parallel uniX 

MAX: MAXimum 

MAXML: Multichannel Accessible eXtensible 


MB: Medium Business 

Mb: MegaBit 

MB: MegaByte 

1024 kilobytes 

MB: MotherBoard 

(Hardware) 

MBASIC: Microsoft Beginners All-purpose 


(Microsoft) 

MBCS: Multi-Byte Character Set 

MbD: Management by Delegation 

(Software) 

MBGP: Multicast Border Gateway Protocol 

Based on RFC 2283 (Multiprotocol Extensions for BGP-4), 

it offers a method for providers to distinguish which 

prefixes they will use for performing multicast reverse path 

forwarding (RPF) checks (Network) 

MBO: Management By Objectives 

MBONE: Multicast backBONE 

(Network) 

Mbps: MegaBits Per Second 


MBps: MegaBytes Per Second 


MBQ: Message-Based Queueing 

MBR: Master Boot Record 

MBS: Maximum Burst Size 

MBSA: Microsoft Baseline Security Analyzer 

Scans for missing hotfixes and vulnerabilities in some 

Microsoft products (Security) (Microsoft) 

MBX: MailBoX 

MC: Model Coordinates 

The coordinate system used for describing a single object 

(a graphics entity). When each object is described in its 

own model coordinate space, all are mapped to one world 

coordinate space 

MCA: Merchant Certification Authority 

erchant Certification Authority 

MCA: Micro Channel Architecture 

Bus architecture (Hardware) (IBM) 

MCAD: Mechanical Computer-Aided Design 

A specialized computer graphics program for the design of 

mechanical structures, such as automobiles, airplanes, 

and their parts (Software) 

MCAD: Microsoft Certified Application 

Developer 

Mid-level certification for professional developers who 

build powerful applications using Microsoft Visual Studio 

.NET and Web services (Microsoft) 

MCAV: Modified Constant Angular Velocity 

MCB: Memory Control Block 


MCBF: Mean Cycle Between Failure 

MCC: Manchester Code Converter 

MCC: Manchester Computing Centre 

MCC: Memory Controller Chip 

(Hardware) 

MCDBA: Microsoft Certified DataBase 

Administrator 

(Microsoft) 

MCF: Meta-Content Framework 

(Netscape) 

MCGA: MultiColor Graphic Adapter 

(Hardware) 

MCGAM: Mixer Conformant Global Address 

Mapping 

(Network) 

MCH: Memory Controller Hub 

(Hardware) 

MCI: Media Control Interface 

MCI: Microwave Communications, Inc. 

Now MCI Communications corporation 

MCSA 

MCIS: Microsoft Commercial Internet System 


MCL: Microsoft Compatibility Labs 

(Microsoft) 

MCL: Much Clown Love 

Used by icp fans also known as juggalos (Net lingo) 

MCM: MultiChip Module 

MCN: Metropolitan Campus Network 

MCNE: Master Certified Novell Engineer 

(Novell) 

MCNS: Multimedia Cable Network System 


MCP: Master Control Program 

MCP: Media and Communications Processor 

(Hardware) 

MCP: Microsoft Certified Professional 

(Microsoft) 

MCP: Multiport Communication Processor 

MCP: Myrinet Control Program 

(Network) 

MCP/AS: Master Control Program/Advanced 

System 

MCPC: Multi Channel Per Carrier 

MC-PGA: Metallized Ceramic - Pin Grid Array 

IC pins organization 

MCPS: Microsoft Certified Product Specialist 

(Microsoft) 

MC-QFP: Metalized Ceramic - Pin Grid Array 

MCR: Maximum Cell Rate 

MCR: Modem Control Register 

M-CRM: Mobile Customer Relationship 

Management 

MCS: Material Control System 

MCS: Multichannel Communications System 

MCSA: Microsoft Certified System 

Administrator 

(Microsoft) 


M

MCSD 

MCSD: Microsoft Certified Solution Developer 

(Microsoft) 

MCSE: Microsoft Certified System Engineer 

(Microsoft) 

MCSP: Microsoft Certified Solution Provider 

(Microsoft) 

MCT: Microsoft Certified Trainer 

(Microsoft) 

MCU: MicroController Unit 

MCU: Multi-Chip Unit 

(DEC) 

MCU: Multipoint Control Unit 

MD: Make Directory 

MD: Message Digest 

(Network) 

MD: MicroDrive 


MD: Mini Disk 

(Sony) 

MD: Monochrome Display 

MD5: Message Digest 5 

Cryptographically strong message digest, see RFC 1321 

(http://www.iesg.org/rfc/rfc1321.txt) (Security) 

MDA: Mail Delivery Agent 

One of the programs that handle email (see also MTA and 

MUA) (Software) 

MDA: Market Development Agreement 

MDA: Medicated Digest Authentication 

MDA: Model Driven Architecture 

Standards-based approach to system development 

MDA: Monochrome Display Adapter 

(Hardware) 

MDA: MultiDimensional Analysis 

MDAC: Microsoft Data Access Component 


MDB: Message-Driven Bean 

(Software) 

MDB: Microsoft DataBase 

File format (Databases) (Microsoft) 

MDB: Multiple-Device Boot 

A diskette used to boot from a CD-ROM or from a network 


MDBE: Microsoft DataBase Engine 


MDBMS: Multidimensional DataBase 

Management System 

(Databases) 

MDD: Multidimensional Discrete Data 

(Databases) 

MDF: Main Distribution Frame 

(Network) 

MDF: Master Data File 

MDF: Menu Definition File 


MDFE: Multilevel Decision Feedback 

Equalization 

(Hardware) 

MDI: Medium Dependent Interface 

MDI: Memory Display Interface 


MDI: Multiple Document Interface 

(Microsoft) 

MDI: Multiplex Device Interface 

MEDAPE 

MDIC: Manchester Decoder and Interface Chip 

(AT&T) 

MDIS: MetaData Interchange Specification 

MDK: Multimedia Developers Kit 

(Microsoft) 

MDL: Method Definition Language 

MDL: Microstation Development Language 

MDLP: Mobile Data Link Protocol 

MDLS: Member Digital Library Subscription 

MDM: Machine Debug Manager 

MDM: Media Device Manager 

MDM: Membership DIrectory Manager 

(Microsoft) 

MDMF: Multiple Data Message Format 

Format used to send Caller ID information 


MDPM: Multilevel Distributed Process 

Modeling 

MDR: Memory Data Register 

(Hardware) 

MDR: MetaData Repository 

MDR: MicroDesign Resources 

MDR: Minimum Design Requirement 

MDRAM: Multi-bank Dynamic Random Access 

Memory 

(Hardware) 

MDRC: Manufacturing Design Rule Checker 

MDS: Macintosh Development System 


MDS: Manufacturing Design System 

MDS: Meta Data Service 

(Databases) 

MDS: Metacomputing Directory Service 

MDS: Microprocessor Development System 

(Software) 

MDSM: MultiDimensional Storage Manager 


MDT: Mechanical DeskTop 

MDT: Mountain Daylight Time 


MDTE: Male Data Terminal Equipment 

RS-232 adapter (Hardware) 

MDX: MultiDimensional eXpression 

(Databases) 

MDY: Month Day Year 

ME: Millenium Edition 

Windows version (Operating systems) (Microsoft) 

ME: Motion Estimation 

MEB: Memory Expansion Board 

MED: Management of External Data 

(Databases) 

MED: Minimum Expected Delay 

MEDAPE: MEDium Absolute Percentage Error 


M

MEF 

MEF: Message Exchange Format 

(Network) 

MEL: Mercury Exchange Limited 

MEL: Michigan Electronic Library 

MEL: Multos Executable Language 

MEM: MEMory 

MEMO: Multimedia Environment for MObiles 

MEMS: Micro ElectroMechanical System 


MEO: Medium Earth Orbit 

MERCI: Multimedia European Research 

Conferencing Integration 

MERS: Most Economic Route Selection 

MERVA: Message Entry and Routing with 

Interfaces to Various Applications 

IBM connectivity to SWIFT network (Network) (IBM) 

MES: Manufacturing Execution System 

MES: Mobile Entertainment Service 

Nokia's platform that allows developers to create 

interactive games for WAP (Software) (Nokia) 

MESI: Modified, Exclusive, Shared and Invalid 

MEST: Middle European Summer Time 


MET: Memory Enhancement Technology 

(HP) 

MET: Middle European Time 


MEWT: Middle European Winter Time 


MF: Multi Frequency 

MFC: Microsoft Foundation Classes 


MFC: MultiFunction Center 

(Hardware) 

MFC&T: Microsoft Foundation Classes & 

Templates 


MFD: MultiFunction Device 

(Hardware) 

MFENET: Magnetic Fusion Energy NETwork 

MFFS: Microsoft Flash File System 

(Microsoft) 

MFI: MainFrame Interactive 

MFI: Multifunction Interpreter 

MFIOP: MultiFunction Input/Output Processor 

(Hardware) 

MFLOPS: Million Floating point Operation Per 

Second 

A unit of measure of execution speed that rates the oatingpoint 

performance of a computer 

MFM: Modified Frequency Modulation 

A unit of measure of execution speed that rates the 

floating-point performance of a computer (Hardware) 

MFN: Main Frogans Network 


MFP: MultiFunction Printer 

(Hardware) 

MFPI: MultiFunction Peripheral Interface 


MFR: Multilink Frame Relay 

(Network) 

MFS: Macintosh File System 


MFS: Magnetic tape Field Search 

MFS: Memory File System 

MFS: Message Format Service 

MFS: Modified Filing System 


MFT: Master File Table 

Table containing NT's file system structure (Operating 


MFT: Mean Field Theory 

MiB 

MFT: Multiprogramming with a Fixed number 

of Tasks 

MFTP: Multicast File Transfer Protocol 

MFU: Most Frequently Used 

MGA: Matrox Graphics Adapter 

MGA: Monochrome Graphics Adapter 

(Hardware) 

MGC: Media Gateway Controller 

Provides a single management platform for fault, 

configuration, performance and security management. It 

manages the Cisco PGW 2200 PSTN Gateway and the 

Cisco SC2200 Signaling Controller. Cisco MGC Node 

Manager integrates access to all signaling components 


MGCP: Media Gateway Control Protocol 

Controls (trunks) gateways interconnected with the Public 

Switched Telephone Network (PSTN) with packet networks 

and controls (residential) gateways that function as 

network interfaces for customer premise located equipment 


MGDI: Multiplatform Graphics Device 

Interface 


MGE: Modular Gis Environment 

MGET: Multiple GET 

MGML: Minimal Generalized Markup Language 

MGR: ManaGeR 

MH: Modified Huffman 

MHDL: Mimic Hardware Description Language 

MHEG: Multimedia and Hypermedia 

information coding Expert Group 

MHP: Managed Hosting Provider 

MHPCC: Maui High Performance Computing 

Center 

MHS: Message Handling System 

MHz: MegaHertZ 

MI: Management Interface 

MI: Multiple Inheritance 

(Software) 

MI/MIC: Mode Indicate/Mode Indicate 

Common 

MIA: Mobile Internet Access 

MIB: Management Information Base 

MiB: MebIByte 



kiB 


M

MIB 

MIB: Multimedia Integration Box 

(Siemens-Nixdorf) 

MIC: Macro Interpretative Command 

MIC: Market Intelligence Center 

MIC: Media Interface Connector 

MIC: Message Integrity Check 

MICE: Modular Integrated Communications 

Environment 

MICR: Magnetic Ink Character Recognition 

MICS: Macro Interpretive Commands 

MID: Message IDentifier 

MID: Mobile Information Device 

(Hardware) 

MIDAS: Multi-tIer Distributed Application 

Service 

(Borland) 

MIDI: Musical Instrument Digital Interface 

A note-oriented control language for specifying music. 

MIDI data consists of codes specifying notes and timing. 

These codes can be generated by or output to MIDIcompatible 

devices, such as keyboards or synthesizers 

(Hardware) 

MIDL: Microsoft Interface Definition Language 

(Microsoft) 

MIDP: Mobile Information Device Profile 

Is a set of Java APIs which, together with the Connected 

Limited Device Configuration (CLDC), provides a complete 

J2METM application runtime environment targeted at 

mobile information devices, such as mobile phones and 

entry level PDAs (Sun) 

MIE: Mobile Internet Explorer 


MIF: Maker Interchange Format 

(Adobe) 

MIF: Management Information File 

MIF: Management Information Format 

MIF: Minimum Internetworking Functionality 

MIF: Module Interconnection Facility 

MIFST: Microsoft Internet Finance Server 

Toolkit 


MIG: Metal In Gap 

MII: Media-Independent Interface 

A 40-pin miniature-D connector that provides the 

electrical interface between some Sun systems and 

10BASE-T or 100BASE-T Ethernet network transceivers 


MII: Microsoft/IBM/Intel 

MIL: Machine Interface Layer 

MILNET: MILitary NETwork 

Originally part of the ARPANET, MILNET was partitioned 

in 1984 to provide military installations with reliable 

network service, while the ARPANET continued to be used 

for research (Network) 

MIM: Map Image Metafile 

MIM: Metal-Insulator-Metal 

(Hardware) 

MIMD: Multiple Instruction Multiple Data 

MIME: Multipurpose Internet Mail Extensions 

(Network) 


MIMO: Multiple-Input Multiple-Output 


MIN: MINimum 

MIN: Mobile Identification Number 

MIND: Microsoft INternet Developer 

Microsoft magazine for Web developers (Microsoft) 

MinLSN: MINimum recovery Log Sequence 

Number 

(Databases) 

MINT: Mint Is Not Tos 

MLE 

MINUET: Minnesota INternet Users Essential 

Tools 

MINX: Multimedia Information Network 

eXchange 

MIO: Memory Input/Output 

MIP: Mixed Integer Programming 

MIP: Mobile Internet Protocol 

(Network) 

MIPS: Microprocessor without Interlocked 

Piped Stages 

MIPS: Million Instructions Per Second 

A unit of measure of execution speed that rates the 

performance of a computer CPU 

MIR: Micro-Instruction Register 

MIS: Management Information System 

MIS: Mobile Information Server 


MIS: Multimedia Information Sources 

MISC: MISCellaneous 

MISD: Multiple Instruction Single Data 

MISF: Microsoft Information Security 

Framework 

(Microsoft) 

MIT: Massachusetts Institute of Technology 

MITACS: Mathematics of Information 

Technology and Complex Systems 


MIX: Member Information eXchange 

MIXER: Mime Internet X.400 Enhanced Relay 

(Network) 

MJ: Modular Jack 

MJD: Modified Julian Date 

MKDIR: MaKe DIRectory 

MKS: Mortice Kern Systems 

ML: Machine Language 

ML: Meta Language 

(Software) 

MLA: Multi-Letter Abbreviation 

Used in comedy along with TLA 

MLAPI: MultiLingual Application Programming 

Interface 

MLC: MultiLayer Ceramic 

MLC: MultiLevel Cell 

Memory technology (Hardware) 

MLE: Multi Language Environment 

MLE: MultiLine Editor 

MLE: MultiLine Entry field 


M

MLI 

MLI: Multiple Link Interface 

MLID: MultiLink Interface Driver 

MLM: Mailing List Manager 

MLP: Meridian Lossless Packing 

MLPPP: MultiLink Point-to-Point Protocol 


MLS: MultiLevel Secure 

MLT: Mechanized Line Test 

Determines obvious line errors or loop lenght indications 

(Hardware) 

MM: Management Module 

MM: MicroMiniature 

(Hardware) 

MM: Mobile Management 

MM: MultiMedia 

MMA: Microcomputer Managers Association 

MMA: Midi Manufacturer Association 

MMAPI: Mobile Media Application 


MMC: Matched Memory Cycle 

MMC: Microcomputer Marketing Council 

MMC: Microsoft Management Console 

(Microsoft) 

MMC: Microsoft Media Console 

(Microsoft) 

MMC: MultiMedia Card 

(Hardware) 

MMC: MultiMedia Commands 

MMCD: MultiMedia Compact Disk 

(Hardware) 

MMCD-E: MultiMedia Compact Disk-Erasable 

MMCX: MultiMedia Communication Exchange 

MMDS: Multichannel Multipoint Distribution 

Service 


MMF: Make Money Fast 

(Net lingo) 

MMF: Multi Mode Fiber 

(Hardware) 

MMF: MultiMedia File 


MMG: Massively Multiplayer Game 

MMI: Man-Machine Interface 

MMIS: Materials Manager Information System 

MML: Maker Macro Language 

MML: Music Markup Language 

MMM: Mobile Media Mode 

MMO: Mobile MOdule 


MMOD: Male MODem 

Modem adapter (Hardware) (Cisco) 

MMOG: Massively Multiplayer Online Game 

(Games) 

MMORPG: Massive Multiplayer Online Role 

Playing Game 

(Games) 


MMPM: MultiMedia Presentation Manager 

MOHLL 

MMPM/2: MultiMedia Presentation Manager 2 

MMR: Modified Modified Read 

MMRPG: Massive Multiplayer Role Playing 

Game 

(Games) 

MMS: Maximum Message Size 

MMS: Merchant Management System 

MMS: Microsoft Media Server 

Streaming protocol used by the Microsoft Media Server. 

Used to access unicast content from a Windows Media 

Server to a Windows Media Player (Network) (Microsoft) 

MMS: Multimedia Messaging Service 

MMU: Memory Management Unit 

(Hardware) 

MMVF: MultiMedia Video FIle 

(NEC) 

MMX: Matrix Manipulation eXtensions 

(Intel) 

MMX: MultiMedia eXtensions 

(Intel) 

MNG: Multiple-image Network Graphics 

A Portable Network Graphics (PNG)-like image format 

supporting multiple, animated, transparent and 

compressed images 

MNN: My Netscape Network 

MNOS: Metal Nitride Oxide Semiconductor 

MNP: Microcom Networking Protocol 

(Network) 

MO: Magneto-Optical 

(Hardware) 

MO: Managment Object 

MO:DCA: Mixed Object Document Content 

Architecture 

MOB: Memory-Order Buffer 

MOC: Microsoft Official Curriculum 

(Microsoft) 

MOCA: Microsoft Online Crash Analysis 


MOD: Magneto-Optical Disk 

MOD: Microsoft Office 2000 Developer 


MOD: MODulus 

Reminder of the integer division 

MODEM: MOdulator/DEModulator 

MOF: Managed Object Format 

(Microsoft) 

MOF: Meta-Object Facility 

Standard interfaces that can be used to define and 

manipulate a set of interoperable metamodels and their 

corresponding models 

MOF: Microsoft Operations Framework 

Provides technical guidance that enables organizations to 

achieve mission-critical system reliability, availability, 

supportability, and manageability of Microsoft products and 

technologies (Microsoft) 

MOG: Multiplayer Online Game 

MOHLL: Machine Oriented High Level 

Language 


M

MOLAP 

MOLAP: Multidimensional On-Line Analytical 

Processing 

MOM: Manufacturing Operations Management 

MOM: Message-Oriented Middleware 

(Software) 

MOM: Microsoft Office Manager 

(Microsoft) 

MOMA: Message-Oriented Middleware 

Association 


MONET: Multiwavelength Optical NETwork 

(Network) 

MOO: Mud, Object Oriented 

A client used to connect to a MUD 

MOP: Maintenance Operations Protocol 

(Network) 

MOP: Meta Object Protocol 

A reflective facility of an object-oriented language 

(Software) 

MOPA: MultiProtocol Over Atm 


MOPS: Million Operations Per Second 

MO-ROD: Magneto Optical-Rewriteable Optical 

Disk 

(Hardware) 

MOS: Magneto-Optic Storage 

MOS: Mean Opinion Score 

MOS: Metal-Oxide Semiconductor 


MOS: Microsoft Office Specialist 

(Microsoft) 

MOSES: Massive Open Systems Environment 

Standard 

MOSFET: Metal-Oxide Semiconductor Field- 

Effect Transistor 

(Hardware) 

MOSPF: Multicast Open Shortest Path First 


MOSS: Mime Objects Security Services 

MOSTL: Microsoft Office Smart Tag List 

Tool that makes it easy for Office developers to build and 

update XML lists of terms to recognize (Software) 

(Microsoft) 

MOT: Multimedia Object Transfer 

MOTD: Message Of The Day 

MOTIS: Message-Oriented Text Interchange 

Systems 

MOTO: Master Of The Obvious 

(Net lingo) 

MOTOS: Member Of The Other Sex 

(Net lingo) 

MOTSS: Member Of The Same Sex 

(Net lingo) 

MOU: Memorandum of Understanding 

MOUS: Micorsoft Office User Specialist 

(Microsoft) 

MOV: Metal Oxide Varistor 

(Hardware) 


MOV: MOVe 

Processor instruction 

MOV: MOVie 

Fileformat for movies (Apple) 

MOVS: Microsoft Office/Vba Solution 

(Microsoft) 

MOVS: MOVe String 

Processor instruction 

MO-WORM: Management Object 

MP: Massively Parallel 

MP: Master Plan 

MP: MicroProcessor 

MP: Multi Processor 

A computer using two or more nearly equal processing 

units under integrated control (Hardware) 

MPL 

MP: Multilink Protocol 

Method for splitting, recombining and sequencing 

datagrams across multiple logical data links. Originally 

designed to exploit multiple bearer channels in ISDN, it's 

equally applicable to any situation in which multiple PPP 

links connect two systems (Network) 

MP: MultiProtocol 

MP: My Pleasure 

(Net lingo) 

MP+: Multichannel Protocol Plus 

(Network) (Ascend) 

MP3: MPeg layer 3 

Sound encoding format (Software) 

MPA: Memo Pad Archive 


MPAA: Motion Picture Association of America 


MPC: Mobile Productivity Center 

Palm cradle (Hardware) 

MPC: Multimedia Personal Computer 

Multimedia specifications 

MPC: MultiPath Channel 

MPC+: MultiPath Channel Plus 

(IBM) 

MPCC: MultiProtocol Communication 

Controller 

(Hardware) 

MPCS: Mission Planning and Control Station 

MPDU: Message Protocol Data Unit 

MPE: Multi-Programming Executive 

(HP) 

MPEG: Motion Pictures Expert Group 

A group that has developed standards for compressing 

moving pictures and audio data and for synchronizing video 

and audio datastreams. Also, a file format 

MPI: Message Passing Interface 

(Sun) 

MPI: MultiPrecision Integer 

MPI: Multiprocessor Interconnect Bus 

MPIF: Message Passing Interface Forum 

MPK: MultiProcessing Kernel 


MPL: Message Passing Library 

(IBM) 


M

MPL 

MPL: Mozilla Public License 

MPLS: MultiProtocol Label Switching 

An architecture on the IETF standards track for integrating 

a mechanism for label-swapping with Layer 3 routing to 

accelerate packet forwarding (Network) 

MPMD: Multiple Processor/Multiple Data 

MPOA: Multi-Protocol Over Atm 

An ATM Forum standard for the routing of multiple 

protocols across an ATM substrate. It enables ATM 

services to be integrated with existing local-area networks 

that use Ethernet, token-ring or TCP/IP protocols 

(Network) 

MPOE: Minimum Point Of Entry 

Location phone and data lines first come into a building 


MPOW: Multiple Purpose Operator 

Workstation 

MPP: Massively Parallel Processing 

MPP: Message Posting Protocol 

MPP: Message Processing Program 

MPPC: Microsoft Point to Point Compression 


MPPD: Multi Purpose Peripheral Device 

MPPE: Microsoft Point to Point Encryption 

Encrypts data for Point to Point Protocol (PPP) or Point to 

Point Tunneling Protocol (PPTP) connections (Network) 

(Microsoft) 

MPQP: Multi-Protocol Quad Port 

(IBM) 

MPR: MultiPart Repeater 

MPR: Multi-Protocol Routing 

(Network) 

MPS: MultiPage Signal 

MPS: Multiple Priority System 

(Network) 

MPS: MultiProcessor Specification 

MPSX: Mathematical Programming System 

eXtended 

MPT: MultiPort Transceiver 

MPTA: Multi Protocol Transport Architecture 

MPTN: Multi-Protocol Transport Network 

MPTP: Micro Payment Transfer Protocol 

MPTS: Multi-Protocol Transport Services 

MPTS/2: Multi Protocol Transport Services 2 

MPTY: More Power To You 

(Net lingo) 

MPU: MicroProcessor Unit 

(Hardware) 

MPVM: Message Parallel Virtual Machine 

(Sun) 

MPW: Macintosh Programmer's Workshop 


MQ: Message Queuing 

(Software) 

MQE: Managed Query Environment 

(Databases) 

MQH: Memory Queue Handler 

On Sun server systems, the device on the system board 

that provides the interface between the system board 

SIMMs and the backplane XDBus (Hardware) (Sun) 


MQI: Message Queuing Interface 

(IBM) 

MR: Magneto-Resistive 


MR: Maintenance Release 

(Software) 

MR: Memory Read 

(Hardware) 

MR: Modem Ready 

MR: Modified Read 

MRAM: Magnetic Random Access Memory 

(Hardware) 

MRB: Method Request Broker 

MRC: Mesh Router Chip 

(Network) 

MRCF: Microsoft Realtime Compression 

Format 

MRCI: Microsoft Real-time Compression 

Interface 

(Microsoft) 

MRU 

MRCP: Media Resource Control Protocol 

Protocol specifically designed to address the need for 

client control of media processing resources such as 

Automatic Speech Recognition (ASR) and Text-To-Speech 

(TTS) engines 

MREQ: Memory REQuest 


MRI: Magnetic Resonance Imaging 

A medical imaging technique used for image capture. 

Tissue area is simultaneously subjected to 

electromagnetic radiation and a magnetic field 

M-RIB: Multicast Routing Information Base 

(Network) 

MRJ: Macos Runtime for Java 


MRM: Most Recently used Master 

MRNET: Minnesota Regional NETwork 

MRO: Maintenance, Repair and Operation 

MRO: Multi-Region Operation 

(IBM) 

MROC: Miniature Ruggedized Optical 

Correlator 

(Hardware) 

MRP: Manufacturing Resource Planning 

MRP: Material Requirement Planning 

MRPL: Main Ring Path Length 

MRS: Media Recognition System 

MRS: Message Routing System 


MRS: Micro Reflective Structure 

(Hardware) (Sharp) 

MRS: Monitoring and Recovery Subsystem 

MrSID: MultiResolution Seamless Image 

Database 

Image compression algorithm 

MRT: Mean Repair Time 

MRTG: Multi Router Traffic Grapher 

MRU: Maximum Receive Unit 

MRU: Most Recently Used 


M

MR-X 

MR-X: Magneto Resistive - eXtended 

(Hardware) 

MS: Memory Stick 


MS: Memory System 

MS: Message Store 

MS: MicroSoft 

ms: MilliSecond 

Time measurement unit 

MS: Mobile Station 

MSA: Management Services Architecture 

(IBM) 

MSAA: MicroSoft Active Accessibility 

(Software) 

MSACM: MicroSoft Audio Compression 

Manager 

(Microsoft) 

MSAU: MultiStation Access Unit 

(Network) 

MSAV: MicroSoft Anti Virus 

(Microsoft) 

MSB: Most Significant Bit (or Byte) 

MSBD: Media Stream Broadcast Distribution 

Protocol used to distribute streams between Windows 

Media Encoder and the Windows Media server components, 

and to transfer streams between servers (Microsoft) 

MSBF: Mean Swaps Between Failures 

MSC: MicroSoft C 

MSC: Mobile Switching Center 

MSCDEX: MicroSoft CD-rom EXtensions 


MSCE: MicroSoft Certified Engineer 

(Microsoft) 

MSCHAP: MicroSoft Challenge Handshake 

Authentication Protocol 

(Microsoft) 

MSCM: Multiple Slots on Continuation 

Mechanism 

MSCP: Mass Storage Control Protocol 

MSCS: MicroSoft Cluster Server 

MSCT: MicroSoft Certified Trainer 

(Microsoft) 

MSCTEC: MicroSoft Certified Technical 

Education Center 

(Microsoft) 

MSD: Mass Storage Device 

MSD: Microsoft System Diagnostics 

(Microsoft) 

MSD: Most Significant Digit 

MSDA: MicroSoft Direct Access 

(Microsoft) 

MSDE: MicroSoft Database Engine 


MSDE: MicroSoft Desktop Engine 


MSDK: Microsoft Solutions Development Kit 

(Microsoft) 


MSDL: MicroSoft Download Library 

(Microsoft) 

MSDN: Macintosh Software Distribution 

Network 

MSDN: MicroSoft Developer Network 

(Microsoft) 

MSDOS: MicroSoft Disk Operating System 

MSL 

MSDP: Multicast Source Directory Protocol 

Developed for peering between Internet service providers 

(ISPs), it enables Rendezvous Points (RPs) to share 

information about active sources (Network) 

MSDR: Multiplexed Streaming Data Request 

MSDS: MicroSoft Developer Support 

(Microsoft) 

MSDSS: MicroSoft Directory Synchronization 

Services 


MSDTC: MicroSoft Distributed Transactions 

Coordinator 


MSE: MicroSoft Exchange 


MsecSP: Managed SECurity Service Provider 

MSEQ: MicroSoft English Query 


MSF: Microsoft Solutions Framework 

(Microsoft) 

MSFC: Multilayer Switch Feature Card 

(Network) 

MSFP: Management Service Focal Point 

MSFR: Minimum Security Function 

Requirements 

(IBM) 

MSG: MeSsaGe 


MSI: Medium-Scale Integration 

The process of placing from 100 to 3,000 transistors on a 

chip (Hardware) 

MSI: MicroSoft Installer 


MSIE: MicroSoft Internet Explorer 


MSIL: MicroSoft Intermediate Language 


MSIMN: MicroSoft Internet Mail and News 

(Microsoft) 

MSISDN: Mobile Station Integrated Services 


The number used to call a mobile subscriber. An MSISDN 

consists of a country code, a national destination code and 

a subscriber number (Communication) 

MS-ISDN: Mobile Station Integrated Services 

Digital Network number 

MSJ: Microsoft Systems Journal 

Microsoft magazine (Microsoft) 

MSK: Minimum-Shift Keying 

MSKB: MicroSoft Knowledge Base 

(Microsoft) 

MSL: Map Specification Library 

MSL: Microsoft Software Library 


M

MSL 

MSL: Mirrored Server Link 

MSMQ: MicroSoft Message Queue 


MSN: MicroSoft Network 


MSN: Multiple Subscriber Number 

MSNF: Multiple Systems Networking Facility 

MSO: Multiple-Systems Operator 

MSP: Management Service Provider 

MSP: Message Send Protocol 

(Network) 

MSP: Messaging Service Provider 

MSP: MicroSoft Paint 


MSR: Magnetic Super Resolution 

(Hardware) 

MSR: MicroSoft Research 

(Microsoft) 

MSR: MicroSoft Reserved (partition) 


MSRN: Mobile Station Roaming Number 

MSRP: Manufacturer Suggested Retail Price 

MSS: Managed Security Service 

MSS: Mass Storage Subsystem 

An early version of the Sun pedestal disk storage system 


MSS: Multiprotocol Switched Server 


MSSP: Managed Security Service Provider 

MST: Mountain Standard Time 


MSTS: MicroSoft Terminal Server 


MSU: Mass Storage Unit 

(Hardware) 

MSU: Media Server Unit 

MSU: Millions of Service Units 

MSU: Modem Sharing Unit 

(Hardware) 

MSVC: MicroSoft Visual C 

MSW: Machine Status Word 

MT: Machine Translation 

MT: Management Team 

MTA: Message Transfer Agent 

An ISO/OSI application process that stores and forwards 

messages in the X.400 message handling system. 

Compare with Internet mail agent 

MTA: Message Transfer Architecture 

(Software) 

MTA: Multimedia Terminal Adapter 

MTA: Multiple Terminal Access 

MTA: Multi-Threaded Apartment 

A threading context in which components must handle 

synchronization themselves. Under COM+ the threads that 

run in the MTA com from a thread pool managed by the 

system (Software) (Microsoft) 

MTBB: Mean Time Between Breakdowns 

MTBCF: Mean Time Between Critical Failures 


MTTF 

MTBF: Mean Time Between Failures 

The average time a component can operate without a 

failure. The MTBF is the number of failures divided by the 

number of hours the component has operated (Hardware) 

MTBJ: Mean Time Between Jams 

MTBRP: Mean Time Between Parts 

Replacement 

MTC: Midi Time Code 

MTD: Memory Technology Drivers 

MTD: Month To Date 

Time series function 

MTDA: Mean Time between Data Access 

The average time before non-redundant components fail, 

causing data inaccessibility without loss or corruption. 

(Hardware) 

MTDL: Mean time to Data Loss 

The average time before the failure of an array component 

causes data to be lost or corrupted. (Hardware) 

MTDT: Moscow Time Daylight Time 


MTE: MuTating Engine 

MTF: Microsoft Tape Format 

(Hardware) (Microsoft) 

MTF: Modulation Transfer Function 

(Hardware) 

MTFTP: Multicast Trivial File Transfer 

Protocol 

(Network) 

MTH: Memory Translator Hub 

(Hardware) 

MTI: Mips Technologies Inc. 

MTN: Mobile Telephone Network 

MTOM: Message Transmission Optimization 

Mechanism 

MTP: Message Transfer Part 

MTP: Multicast Transport Protocol 

(Network) 

MTRP: Maximum Transfer Rate Performance 

MTS: Message Telephone Service 

MTS: Message Transfer System 

(Software) 

MTS: Michigan Terminal System 

Academic operating system (OS), 1960s-90s. Along with 

Multics at MIT, it was among the first operational virtual 

memory operating systems in the world (Operating 

systems) 

MTS: Microsoft Transaction Server 

(Microsoft) 

MTS: Multichannel Television Sound 

MTSO: Mobile Telephone Switching Office 

(Network) 

MTST: Magnetic Tape Selectric Typewriter 


MTST: Moscow Time Standard Time 


MTT: Multi-Transaction Timer 

MTTD: Mean Time To Diagnose 

MTTF: Mean Time To Failure 

(Hardware) 


M

MTTFF 

MTTFF: Mean Time To First Failure 

MTTR: Mean Time To Repair 

The average time required to bring an array storage 

subsystem back to full fault tolerance. (Hardware) 

MTU: Maximum Transmission Unit 

MUA: Mail User Agent 

MUD: Multi-User Dialogue 

MUD: Multi-User Dimensions 

Formerly, Multi-User Dungeon 

MUD: Multi-User Dungeon 

Multi-user interactive role-playing games on the Internet 

MUG: Multi-User Game 

MUI: Multilanguage User Interface 


MUI: Multimedia User Interface 

MUL: MULtiply 

MULDEM: MULtiplexer-DEMultiplexer 

MULTICS: MULTiplexed Information and 

Computing Service 

MULTOS: MULTiapplication-card Operating 

System 


MUMBLE: Multi User Multicast Basic Language 

Exchange 

MUMPS: Massachusetts "general hospital" 

Utility Multi-Programming System 

A programming language with extensive tools for the 

support of database management systems. MUMPS was 

originally used for medical records and is now widely used 

where multiple users access the same databases 

simultaneously, e.g. banks, stock exchanges,... 

(Databases) 

MUP: Multiple Unc Provider 

(Network) 

MUSE: Multi-User Simulated Environment 

MUT: Monitor Under Test 

MUX: MUltipleXer 

MUX: Multi-User eXperience 

mV: MilliVolt 

MVA: Market Value Added 

MVA: Multi-domain Vertical Alignment 

(Hardware) (Fujitsu) 

MVB: Multimedia Viewer Book 

MVC: Model View Controller 

MVC: Multimedia Viewer Compiler 

MVCC: Multi-Version Concurrency Control 

(Databases) 

MVD: MultiValued Dependencies 

MVDM: Multiple Virtual DOS Machines 

MVGA: Monochrome Video Graphics Array 

MVIF: Multi-Vendor Interacting Forum 

MVIP: MultiVendor Integration Protocol 

MVLS: Microsoft Volume License Site 

(Microsoft) 

MVNO: Mobile Virtual Network Operator 

MVP: Most Valuable Professional 

(Microsoft) 


MVP: Multimedia Video Processor 

MVP: Music Video Producer 

(Software) 

MVR: Multimedia Vehicle and Repository 


MVS: Multiple Virtual Storage 

IBM Mainframe operating system (IBM) 

MVS/SP: Multiple Virtual Storage/System 

Product 

MVS/XA: Multiple Virtual Storage/eXtended 

Architecture 

MVT: Multiprogramming with a Variable 

number of Tasks 

MW: Memory Write 

(Hardware) 

MW: MiddleWare 

MWFM: Mobile Wireless Fault Mediator 


MWI: Mobile Web Initiative 

Proposes to address issues like interoperability and 

usability for mobile phones through a concerted effort of 

players in the mobile field, including authoring tool 

vendors, content providers, handset manufacturers, 

browser vendors and mobile operators 

MWM: Motif Window Manager 


MWS: Matsushita White Skipping 

MX: Mail eXchanger 

NAC 

MXCC: Module Xbus Cache Controller 

On Sun server systems, a device located on the processor 

module that controls the ow of data between the XBus and 

the module cache RAM and processor chip (Hardware) 

(Sun) 

MXF: Material eXchange Format 

A SMPTE standard that defines a file format for AV media 

and associated metadata 

MXS: Microsoft eXchange Server 

On Sun server systems, a device located on the processor 

module that controls the flow of data between the XBus and 

the module cache RAM and processor chip (Microsoft) 

MZ: Mark Zbikowski 

DOS executable file header identifier 

MZAP: Multicast-scope Zone Announcement 

Protocol 

Protocol for discovering the multicast administrative scope 

zones that are relevant at a particular location. MZAP also 

provides mechanisms whereby common misconfigurations 

of administrative scope zones can be discovered 


MZR: Multiple Zone Recording 

n: Nano 


N/I: Non-Interlaced 

N 

N+I: Networld + Interop 

Trade conference 

NAB: National Association of Broadcasters 

NAB: Netscape Application Builder 


NAC: Network Adapter Card 

NAC: Network Administration Center 


M 

N

NACCB 

NACCB: National Association of Computer 

Consultant Businesses 


NACD: National Association of Computer 

Dealers 

NACS: National Advisory Committee on 

Semiconductors 

NACS: Netware Asynchronous 

Communication Server 

NACS: Network Access Control System 

NAD: Network Access Device 

NAD: Network Activity Display 

(Network) 

NAE: Not Above or Equal 

NAG: National Algorithms Group 

NAG: Network Architecture Group 

NAK: Not AcKnowledged 

A control code returned by a receiving station indicating 

that a station with an established connection has sent 

incorrect information 

NAL: Novell Application Launcher 

(Software) (Novell) 

NAM: Number Assignment Module 

NAMI: Network Adaptive Multimedia Image 

NAMPS: Narrow-band Analog Mobile Phone 

Service 

NAMS: National Association of Multimedia 

Shareware 

NaN: Not A Number 

A symbolic entry that is encoded in oating-point format 

(Software) 

NANAE: News.Admin.Net-Abuse.Email 

Usenet newsgroups 

NAP: Network Access Point 

A symbolic entry that is encoded in floating-point format 

(Network) 

NAPI: Network Application Programming 

Interface 

NAPLPS: North American Presentation-Level 

Protocol Syntax 


NAPT: Network Address & Port Translation 

(Network) 

NARP: Nbma Address Resolution Protocol 

(Network) 

NAS: Netobjects Authoring Server 

NAS: Netscape Application Server 

(Operating systems) (Netscape) 

NAS: Network Access Server 

(Network) 

NAS: Network Application Support 

(DEC) 

NAS: Network Attached Storage 

(Hardware) 

NASA: National Aeronautics and Space 

Administration 


NASAA: North American Securities 

Administrators Association 



NASDAQ: National Association of Securities 

Dealers Automatic Quotation 

NASI: Netware Asynchronous Services 

Interface 

(Novell) 

NASIRC: Nasa Automated Systems Internet 

Response Capability 

NASKER: Nasa AmeS KERnel 

NASL: Name/Age/Sex/Location 

(Net lingo) 

NASSL: Network Accessible Services 

Specification Language 

NBSS 

NAT: Network Address Translation 

A technology that enables a network to use one set of IP 

addresses for internal traffic and a second for external 

traffic (Network) 

NATOA: National Association of 

Telecommunications Officers & Advisors 

NAT-PT: Network Address Translation - 

Protocol Translation 


NAU: Network Access Unit 

(Network) 

NAU: Network Addressable Unit 

(Network) 

NAUN: Nearest Active Upstream Neighbour 

NAV: Norton Anti Virus 

(Symantec) 

NAVSTAR: NAVigation Satellite Timing And 

Ranging 

NAWS: Negotiate About Window Size 

NBD: Next Business Day 

Support term 

NBDD: NetBios Datagram Distribution 

(Network) 

NBE: Not Below or Equal 

NBI: Nothing But Initials 

NBMA: Non-Broadcast Multi Access 

NBNS: NetBios Name Service 

Service that keeps track of which names are in use at 

which IP addresses, thus allowing the underlying IP 

network to find the nodes and transport NetBIOS 

messages between them. The Name Service runs on UDP 

port 137 (Network) 

NBO: Networked Business Object 

(Software) 

NBP: Name Binding Protocol 

NBP: Network Bootstrap Program 

This is the first program that is downloaded into a machine 

that has selected a Preboot eXecution Environment (PXE) 

capable device for remote boot services 

NBS: Narrowband Socket 

NBS: National Bureau of Standards 


NBS: Numeric BackSpace 

NBSCP: NetBios Frames Control Protocol 

(Network) 

NBSP: Non-Breakable SPace 

NBSS: NetBios Session Service 

(Network) 


N

NBT 

NBT: NetBios on Tcp/ip 

NC: Naming Context 

Part of the Active Directory configuration (replication 

topology and related metadata) (Network) (Microsoft) 

NC: Network Computer 

(Network) 

NC: Network Control 

NC: Network Coordinator 

NC: No Carry 

NC: No Connection 

(Hardware) 

NC: Norton Commander 

NC: Numerical Control 

NCA: Network Communications Adapter 

NCA: Network Computing Architecture 

(Oracle) 

NCAPI: Netscape Client Application 



NCC: National Computer Conference 

NCC: National Computing Center 

NCC: Network Control Center 

(Network) 

NCC: Norton Control Center 

Norton Utilities' program (Software) (Symantec) 

NCC: Novell Customer Connection 

(Novell) 

NCCF: Network Communications Control 

Facility 

NCD: Network Computing Device 

NCF: Netware Command File 

(Novell) 

NCF: Network Computing Framework 


NCGA: National Computer Graphics 

Association 

NCI: Network Computer, Inc. 

Manufacturer 

NCI: Non Coded Information 

NCIA: Native Client Interface Architecture 

NCIC: National Crime Information Center 

NCITS: National Committee for Information 

Technology Standards 

NCMOS: N-channel Complementary Metal 

Oxyde Semiconductor 

NCMT: N-channel Complementary Metal 

Oxide Semiconductor 

NCN: Nixdorf Communications Network 

NCOS: Network Computer Operating System 

NCP: Netware Core Protocol 

NCP: Network Control Program 

Communication management in IBM networks (Network) 

(IBM) 

NCP: Network Control Protocol 

(Network) 

NCP: Non-Carbon Paper 

NCP: Not Copy Protected 


NCQ: Native Command Queuing 

Technology designed to increase performance and 

endurance by allowing the drive to internally optimize the 

execution order of workloads (Hardware) 

NCR: National Cash Registers 

NCS: Network Computing System 

(HP) 

NE 

NCSA: National Center for Supercomputing 

Applications 

The University of Illinois at Urbana-Champaign developers 

of the original NCSA Mosaic browser (Organizations) 

NCSC: National Computer Security Center 


NCSI: Network Communications Services 

Interface 

NCSL: National Computer Systems Laboratory 

NCTE: Network Channel-Terminating 

Equipment 

NCTL: National Computer and 

Telecommunications Laboratory 

NDA: Non Disclosure Agreement 

NDAC: No Data ACcepted 

NDB: Non-Directional Beacon 

NDC: Normalized Device Coordinates 

The coordinate system between the user’s world 

coordinates (WC) and the graphics system’s physical 

device coordinates in the viewing pipeline 

NDCC: Network Data Collection Center 

NDDK: Network Device Development Kit 

NDDL: Neutral Data Definition Language 

NDE: News Development Environment 

NDEF: Not DEFined 

NDIS: Network Driver Interface Specification 

(Network) 

NDL: Network Database Language 

(Databases) 

NDM: Network Data Manager 

On-line storage service 

NDMP: Network Data Management Protocol 

(Network) 

NDMS: Netware Distributed Management 

Services 

NDN: Non-Delivery Notice 

NDP: Numeric Data Processor 

NDPS: Novell Distributed Print Services 


NDR: Network Data Representation 

(Network) 

NDR: Non-Delivery Report 

NDRO: Non Destructive ReadOut 

NDS: Netware Directory Service 


NDT: Non Destructive Testing 

NE: Network Element 

(Network) 

NE: Not Equal 

(Software) 

Page 100 of 167 

N

NEARNET 

NEARNET: New England Academic and 

Research NETwork 

NEAT: Novell Easy Administration Tool 

(Novell) 

NEB: Netscape Extension Builder 


NEC: National Electrical Code 

NEC: Nippon Electric Corporation 

(NEC) 

NECA: National Exchange Carrier Association 


NED: Nasa Extragalactic Database 

(NASA) 

NEFS: Network Extensible File System 

NEG: NEGative 

NELIAC: Navy Electronics Laboratory 

International Algol Compiler 

NEMA: National Electrical Manufacturers 

Association 

NEP: Network Entry Point 

NEP: Network Equipment Provider 

NES: National Education Supercomputer 

NES: Netscape Enterprise Server 


NEST: Novell Embedded Systems Technology 

(Novell) 

NetBEUI: NETwork Bios Extended User 

Interface 

(Network) 

NetBIOS: NETwork Basic Input Output System 

(Network) 

NETBLT: NETwork BLock Transfer 

NETCDF: NETwork Common Data Format 

NETMON: NETwork MONitor 

NEWS: Netware Early Warning System 

NEWS: Network Extensible Window System 

A window system based on PostScript that Sun developed 

and licenses (Operating systems) (Sun) 

NEWT: NEWs Terminal 

NEXT: Near-End CrossTalk 

NeXT: NEw eXtended Technology 

NF: Naturally Flat 

Crt technology (Hardware) (Mitsubishi) 

NFAS: Non-Facility Associated Signaling 

In ISDN, a single D-channel can control multiple PRIs 

(Network) 

NFE: Net Future Expectation 

NFF: No Fault Found 

NFI: Near Field Imaging 

Touch screen where the screen itself is the sensor. NFI 

uses a sophisticated sensing circuit that can detect a 

conductive object - a finger or conductive stylus - through 

a layer of glass, as well as through gloves or other 

potential barriers (Hardware) 

NFI: No F***ing Idea 

(Net lingo) 

NFM: No Further Messages 

End of script, ie: you dont want to talk to this person 

anymore (Net lingo) 


NFR: Near Field Recording 

(Hardware) 

NIDS 

NFS: Network File System 

A Sun distributed file system that provides transparent 

access to remote file systems on heterogeneous networks 


NFT: Network File Transfer 

NG: NewsGroup 

Discussion forum 

NGE: Not Greater or Equal 

NGI: Next Generation Internet 

NGIO: Next Generation Input Output 


NGWS: Next Generation Windows Services 


NHC: National Hurricane Center 

NHR: National Handwriting Recognition 

NHRP: Next Hop Resolution Protocol 

(Network) 

NHSE: National Hpcc Software Exchange 

NI: New Instructions 


NI: No Increase 

NI: Non Interlaced 

(Hardware) 

NIA: Next Instruction Address 

NIAM: Natural language Information Analysis 

Method 

NIC: Network Information Center 

Originally, a single NIC at SRI International served the 

ARPANET (and later the defense data network [DDN] 

community) (Network) 

NIC: Network Interface Card 

(Hardware) 

NIC: New Internet Computer 

(Hardware) 

NIC: Numeric Intensive Computing 

NiCd: NIckel-CaDmium 

Rechargable battery technology 

NICE: Narrative, Immersive, Collaborative 

Environment 

Rechargeable battery technology 

NICE: Network Information and Control 

Exchange 

NICE: Novell Internet Connection Expert 


NICOLAS: Network Information Center OnLine 

Aid System 

(NASA) 

NID: Network Interface Device 

(Hardware) 

NID: New Interactive Display 

(NEC) 

NID: Next IDentifier 

NIDL: Network Interface Definition Language 

(Network) 

NIDS: Network Intrusion Detection System 

(Security) 

Page 101 of 167 

N

NIFC 

NIFC: Netscape Internet Foundation Classes 


NIH: Not Invented Here 

NIHCL: National Institute of Health Class 

Library 

NII: National Information Infrastructure 

NIIT: National Information Infrastructure 

Testbed 

NILO: Network Interface LOader 

Boot Linux, FreeBSD, Windows 95/98/NT4 and support the 

Intel PXE standard, and is suitable for burning into ROM. It 

is an evolution of the previous Etherboot and Netboot 

projects. See http://www.nilo.org/ 

NIM: Network Installation Management 

(IBM) 

NiMH: NIckel-Metal Hydride 

Rechargable battery technology 

NIMS: Novell Internet Messaging System 

(Novell) 

NIO: Native Input/Output 

Rechargeable battery technology 

NIO: New Input/Output 

Java's new I/O subsystem (Software) (Sun) 

NIPR: Non-secure Internet Protocol Router 

(Network) 

NIPS: Network I/os Per Second 

NIR: Network Information Retrieval 

(Network) 

NIS: Network Information Service 

A distributed network database containing key information 

about the systems and the users on the network. The NIS 

database is stored on the master server and all the slave 

servers (Network) (Sun) 

NIS: Norton Internet Security 


NIS/YP: Network Information System/Yellow 

Pages 

N-ISDN: Narrowband Integrated Services 


N-ISDN: National Integrated Services Digital 

Network 

NISI: Network Information Services 


(Network) 

NISO: National Information Standards 

Organization 

NISP: Networked Information Services 

Project 

NIST: National Institute of Standards and 

Technology 


NITC: National Information Technology 

Center 

NITOL: Norway-net with IT for Open Learning 

NIU: Network Interface Unit 

NIW: Network Installation Wizard 


NIXL: Nas Interface eXchange Language 

(Network) 

NJ: Nice Job 

(Net lingo) 


NJE: Network Job Entry 

(IBM) 

NJM: Native Java Microprocessor 

(Hardware) 

NL: New Line 

NMI 

NLA: Network Location Awareness 

Enables Windows Sockets 2 applications to identify the 

logical network to which a Windows computer is attached 

and to which physical network interface a given application 

has saved specific information (Operating systems) 

(Microsoft) 

NLANR: National Laboratory for Applied 

Network Research 

NLB: Network Load Balancing 


NLDM: Network Logical Data Manager 

NLE: Not Less or Equal 

NLM: Netware Loadable Module 

(Operating systems) (Novell) 

NLP: Natural Language Processing 

NLPID: Network Layer Protocol IDentifier 

NLQ: Near Letter Quality 

NLS: National Language Support 


NLS: Netware Licensing Service 

(Novell) 

NLS: Network License Server 

NLSFUNC: National Language Support 

FUNCtion 

NLSP: Netware Link Services Protocol 

Link-state routing protocol based on IS-IS. See also IS-IS 

NLT: Natural Language Technology 

(Software) 

NLUUG: NetherLands Unix User Group 


NLV: National Language Version 

(IBM) 

NLX: New Low-profile Extended 

Motherboard format, evolution of LPX (Hardware) 

NM: Network Management 

(Network) 

NM: Nothing Much 

(Net lingo) 

NMA: Network Management Architecture 

NMC: Network Management Center 

NME: Norton Mobile Essentials 


NMEA: National Marine Electronics 

Association 

Organization that developed (among other things) the 

NMEA interface standard for data exchange between 

marine electronic devices, also used today in most Global 

Positioning Systems (GPSs) (Organizations) 

NMF: Network Management Forum 

NMH: Not Much Here 

(Net lingo) 

NM-HDV: Network Module - High Density Voice 


NMI: Native Method Invocation 

(Software) 

Page 102 of 167 

N

NMI 

NMI: Non-Maskable Interrupt 

(Hardware) 

NML: Network Management Layer 

NML: Nonconfirmed Mailing List 

Database of Internet Protocol addresses (IP addresses) 

which have been demonstrated to be the sources of mailing 

lists which do not fully verify the email addresses on their 

list. See http://mail-abuse.org/nml/ 

NMLI: Native Mode Lan Interconnection 

Is an IntraLATA high speed transport service used to 

interconnect LANs at geographically separated sites 

(Network) 

NMM: Netware Management Map 

(Novell) 

NMM: Network Management Module 

(Network) 

NMOS: Negative Channel Metal-Oxide 

Semiconductor 

NMP: Network Management Protocol 

(AT&T) 

NMPA: National Music Publishers Association 


NMPF: Network Management Productivity 

Facility 

NMR: Nuclear Magnetic Resonance 

NMS: Netelligent Management Software 

(Network) 

NMS: Network Management System 

NMT: Nordic Mobile Telephone 

Pre-GSM mobile telephone network in the nordic countries 


NMU: Network Management Unit 

(Hardware) 

NN: Network Node 

NN: Neural Network 

NN: No News 

NNI: Network-Node Interface 


NNM: Network Node Manager 

(Network) 

NNSC: Nsf Network Service Center 

NNTP: Network News Transport Protocol 


NOC: Network Operation Center 

A center that operates a production network. Tasks include 

monitoring and control, troubleshooting, and user 

assistance (Network) 

NOP: No OPeration 

(Hardware) 

NOPAC: Network On-line Public Access 

Catalog 

NORA: Non-Obvious Relationship Awareness 

NORMA: NO Remote Memory Access 

NOS: Network Operating System 

NOTA: None Of The Above 

For multiple choice answers (Net lingo) 

NOW: Network Of Workstations 

(Hardware) 

NOYB: None Of Your Business 

(Net lingo) 


NP: No Problem 

Answer when someone says ty/thank you (Net lingo) 

NP: Nondeterministic Polynomial time 

NP: Number Portability 


NPA: Network Printer Alliance 

NPA: Numbering Plan Address 

NPDA: Network Problem Determination Aid 

NPE: Null Pointer Exception 

A NPE happens when trying to access data from a null 

memory location (Software) 

NPH: No Parse Headers 

NPI: Network Printer Interface 

NPL: Netscape Public License 

(Netscape) 

NPL: Non-Procedural Language 

(Software) 

NPM: Network Printer Manager 

(Software) 

NPMS: Named Pipes/Mail Slots 

NPP: Network Payment Protocol 

NPS: Novell Productivity Specialist 

(Novell) 

NPSI: Network Protocol Service Interface 

NPT: Non-Programmable Terminal 

(Hardware) 

NS 

NPTN: National Public Telecomputing Network 

NPU: Natural Processing Unit 

NPU: Network Processing Unit 


NPX: Numeric Processor eXtension 

NQS: Network Queing System 

NRC: National Research Council 


NREN: National Research and Education 

Network 

NRFD: Not Ready For Data 


NRM: Network Resource Manager 

NRM: Normal Response Mode 


NRN: No Response Needed 

(Net lingo) 

NROFF: New Run-OFF 

NRP: Node Route Processor 


NRZ: Non Return to Zero 

Data transmission using +/- voltage levels or carrier 

offsets (Hardware) 

NRZI: NonReturn to Zero Inverted 

NRZL: NonReturn to Zero Level 

NS: Name Server 

ns: NanoSecond 

Time measurement unit 

NS: National Semiconductor 

NS: Network Series 

(Hardware) 

Page 103 of 167 

N

NS 

NS: Network Supervisor 

NS: Non Stop 

NSA: National Security Agency 


NSA POLY: National Security Agency 

POLYgraph 

NSAP: Network Services Access Point 

(Network) 

NSAPI: Netscape Server Application 



NSB: Netware for Small Business 


NSC: Network Service Center 

NSC: Norton System Center 


NSERC: National Sciences and Engineering 

Research Council 

NSF: National Science Foundation 


NSfIP: NextStep For Intel Processors 

NSFNET: National Science Foundation 

NETwork 

NSI: Nasa Science Internet 

NSI: Network Solutions, Inc 

Manages .com, .net, .org, .edu top level domains 


NSIS: National Schengen Information System 

NSIS: Nullsoft Scriptable Install System 

Tool that allows programmers to create quick and user 

friendly installers for Windows. It is released under an open 

source license and is completely free for any use. See also 

http://nsis.sourceforge.net/ (Software) 

NSM: Netscape Server Manager 

(Netscape) 

NSM: Network and System Management 

NSN: Nasa Science Network 

NSP: Native Signal Processing 

NSP: Network Service Provider 

NSP: Network Services Protocol 

NSPR: NetScape Portable Runtime 

Provides platform independence for non-GUI operating 

system facilities, including threads, thread 

synchronization, normal file and network I/O, interval 

timing and calendar time, basic memory management 

(malloc and free) and shared library linking (Netscape) 

NSS: Network Security Service 

Set of libraries designed to support cross-platform 

development of security-enabled server applications. 

Applications built with NSS can support SSL v2 and v3, 

TLS, PKCS #5, PKCS #7, PKCS #11, PKCS #12, S/MIME, 

X.509 v3 certificates, and other standards 

NSS: Network Storage Solutions 

Company 

NSS: Nodal Switching Subsystem 

NSS: Novell Storage Services 

(Novell) 

NSSC: Nasa Standard Spacecraft Computer 

NSTC: National Science and Technology 

Council 


NSTL: National Software Testing Labs 

NT: Network Terminator 

NT: New Technology 


NT: Nice Try 

(Net lingo) 

NT: No Text 

(Net lingo) 

NT: Nome Time 


NT-1: Network Terminator type 1 

NTAS: New Technology Advanced Server 


NTSA 

NTCR: New Technology Challenge/Response 


NTDS: New Technology Directory Service 


NTE: New Technology Embedded 


NTF: No Trouble Found 

NTFS: New Technology File System 


NTHQ: New Technology Hardware Qualifier 

Hardware troubleshooting program (Operating systems) 

(Microsoft) 

NTIA: National Telecommunications and 

Information Administration 


NTIS: National Technical Information Service 

NTK: Newton ToolKit 

NTLDR: New Technology LoaDeR 

Bootstrap loader for Microsoft Windows NT-based 

operating systems (Operating systems) (Microsoft) 

NTLM: New Technology Lan Manager 


NTO: Network Terminal Operator 

(Network) 

NTONC: National Transparent Optical 

Network Consortium 


NTOP: New Technology Option Pack 


NTP: Network Time Protocol 


NTRAS: New Technology Remote Access 

Services 

NTRK: New Technology Resource Kit 


NTRU: Number Theory is Really Useful 

Technology for high speed, low footprint public key 

cryptography, based on the mathematics of lattice 

reduction. (Marketed by NTRU Cryptosystems, Inc, 

http://www.ntru.com/) (Security) 

NTS/2: Network Transport Services 2 

NTSA: Netware Telephony Services 

Architecture 

(Novell) 

Page 104 of 167 

N

NTSC 

NTSC: National Television Systems Committee 

The group that proposed a method of composite color 

encoding based on quadrature modulation of I and Q color 

difference components onto a color subcarrier and adding 

the resulting chroma signal to luminance (Organizations) 

NTSD: New Technology Symbolic Debugger 

(Microsoft) 

NTSL: National Software Testing Laboratories 


NTT: Nippon Telephone & Telegraph 

NTU: Network Termination Unit 

NTWS: New Technology WorkStation 


NUA: Network User Address 

NUB: Network Utility Box 

(Hardware) 

NUI: Network User Identification 

(Network) 

NUI: Network User Interface 


NUI: Notebook User Interface 

NUL: NULl 

An invisible character with an internal code of 0 that 

occupies no space if printed. Not to be confused with a 

blank, which is invisible but occupies a space 

NUMA: NonUniform Memory Access 

NURB: Non Uniform Rational B-spline 

NURBS: Non Uniform Rational B-Spline 

A curve definition method based on the B-spline curve, 

which offers additional exibility through knots along the 

spline. Some knots can have more weight added (like a 

magnet) to pull the curve toward those knots 

NURMS: Non Uniform Rational MeshSmooth 

Method of tesselation used by 3D Studio MAX (Software) 

NUUG: Norwegian Unix User Group 


NV: No oVerflow 

A curve definition method based on the B-spline curve, 

which offers additional flexibility through knots along the 

spline. Some knots can have more weight added (like a 

magnet) to pull the curve toward those knots 

NVDM/2: NetView Distribution Manager 2 

NVE: Network Visible Entity 

A network addressable service (ie. protocol socket) that 

acts as a network service process (not a node.) (Network) 

(Apple) 

NVM: Non Volatile Memory 

(Hardware) 

NVML: NaVigation Markup Language 

NVOD: Near-Video On Demand 

NVP: Network Voice Protocol 

NVP: Nominal Velocity of Propagation 

NVRAM: Non-Volatile Random Access Memory 

A type of RAM that retains information when power is 

removed from the system (Hardware) 

NVS: Non-Volatile Storage 

(Hardware) 


OAW 

NVSIMM: Non-Volatile Single In line Memory 

Module 

A nonvolatile single inline memory module (SIMM) that 

incorporates a battery on the device to prevent data loss in 

a power failure. Battery current is shared among a group of 

NVSIMMs. This feature prevents memory failure if one 

battery fails (Hardware) 

NVT: Network Virtual Terminal 

NVT: Novell Virtual Terminal 

(Novell) 

NWFS: NetWare File System 


NWNet: NorthWestern states NETwork 

NWS: Netware Web Server 

(Novell) 

NYSERNet: New York State Education and 

Research NETwork 

NZDSF: Non-Zero Dispersion Shifted Fibre 

Optical fiber type (Communication) 

NZT: New Zealand Time 


NZUSUGI: New Zealand Unix System User 

Group, Inc. 

O&O: Over & Out 

When leaving an on-line conversation permanently (Net 

lingo) 

O 

O/R: Originator/Recipient 

OA: Office Automation 

OAB: Offline Address Book 

(Microsoft) 

OAB: One-to-All Broadcast 

OAD: Open Architecture Driver 

OAD: Over-the-Air Downloading 

OAG: Official Airline Guide 

OAG: Online Air Guide 

OAI: Open Applications Interface 

OAM: Operations, Administation, and 

Management 

A set of network management functions for ATM similar to 

those in OA&M and OAM&P. Special cells, called OAM 

cells, are used to carry OAM related information 


OARNet: Ohio Academic Resources NETwork 

OAS: Office Automation System 

OAS: One-to-All Scatter 

OAS: Oracle Application Server 


OASIS: Open Access Same-time Information 

System 

OASIS: Organization for the Advancement of 

Structured Information Standards 


OASLM: Optically Addressed Spatial Light 

Modulator 

(Hardware) 

OASYS: Office Automation SYStem 

OAW: Optically Assisted Winchester 

(Hardware) 

Page 105 of 167 

N 

O

OBD 

OBD: On Board Diagnostics 

OBD: Online Bugs Database 

OBEX: OBject EXchange 

Set of protocols allowing objects such as vCard contact 

information and vCalendar schedule entries to be 

exchanged using either IrDA or Bluetooth 

OBI: Open Buying on the Internet 


OBJ: OBJect 


OBS: Old Backup Server 

OBV: Object By Value 

(Software) 

OBVI: Object-Based Video Interface 

OBZ: One Big Zip 

(Net lingo) 

OC: Optical Carrier 

OC-3: Optical Carrier level 3 

OC4J: Oracle Containers For Java 


OCA: Online Crash Analysis 


OCA: Oracle Certified Associate 

Certification for apprentice skill level IT professionals who 

have have a foundation of knowledge that will allow them to 

act as a junior team member (Oracle) 

OCD: Out-of-Cell Delineation 

OCE: Open Collaborative Environment 

(Apple) 

OCF: Object Component Framework 


OCF: OpenCard Framework 

OCFS: Oracle Cluster File System 

(Oracle) 

OCI: Oracle Call Interface 


OCIA: Optically Coupled Interface Adapter 

Interface in many other respects similar to RS232. It is 

used extensively on Point Of Sale (POS) equipments 

(Hardware) 

OCL: Object Constraint Language 

OCL: Operator Control Language 

OCL: Os/2 Class Library 

OCLC: Online Computer Library Center 

OCM: Oracle Certified Master 

Advanced-level certification that is targeted toward 

Oracle9i DBA OCPs with 3 - 4 years of professional 

Oracle experience (Oracle) 

OCN: Operating Company Number 


OCP: Open-Closed Principle 

Object-oriented principle that states that software entities 

should be open for extensions but closed for modifications 

(Software) 

OCP: Oracle Certified Professional 

Mid-level certification for IT professionals who manage 

large-scale databases or develop applications that are 

used enterprise-wide (Oracle) 

OCR: Optical Character Recognition 

OCS: Object Compatibility Standard 


OCS: On-Card Sequencer 

OCS: Open Content Syndication 

OCS: Oracle Collaboration Suite 

Oracle's mail/calendar solution (Software) (Oracle) 

ODP 

OCSP: Online Certificate Status Protocol 

A PKIX protocol used for determining the current status of 

a digital certificate 

OCTAVE: Operationally Critical Threat, Asset, 

and Vulnerability Evaluation 

Approach for self-directed risk evaluations that puts 

organizations in charge, balances critical information 

assets, business needs, threats, and vulnerabilities and 

measures the organization against known or accepted good 

security practices (Security) 

OCX: Ole Control eXtension 


OD: Optical Disk 

ODA: Open Data Access 

(Software) 

ODA: Open Document Architecture 

ODAPI: Open DataBase Application 


(Software) 

ODBC: Open DataBase Connectivity 


ODBMS: Object DataBase Management System 

(Databases) 

ODE: Object Database and Environment 

ODE: Office 97 Developer Edition 


ODF: Open Document Format 

Open document file format for saving and exchanging 

editable office documents (Software) 

ODI: Open Data-link Interface 

(Network) 

ODI: Open Device Interconnect 

(Novell) 

ODIF: Open Document Interchange Format 

ODISS: Optical Digital Image Storage System 

ODL: Object Definition Language 

ODM: Object Data Manager 

(IBM) 

ODM: Optimized Distribution Model 

(Compaq) 

ODM: Original Design Manufacturing 

ODMA: Open Distributed Management 

Architecture 

ODMA: Open Document Management Api 

ODMG: Object Data Management Group 

See http://www.odmg.org/ (Organizations) 

ODMG: Object Database Management Group 

ODP: On-Demand Producer 

Multimedia authoring program (Software) 

ODP: Open Data Path 

Provide a way for more than one program in the same job to 

share the same file status information (Software) (IBM) 

ODP: Open Distributed Processing 

ODP: OverDrive Processor 

Page 106 of 167 

O

ODPS 

ODPS: On Demand Packaging Service 

Intranet Software distribution solution by IBM (Software) 

(IBM) 

ODQL: Object Database Query Language 

(Databases) 

ODR: Optimized Dynamic Routing 

ODS: Open Data Services 

(Microsoft) 

ODS: Operational Data Store 

ODS: Overhead Data Stream 

ODSI: Open Directory Services Interface 

ODT: Open DeskTop 

ODTUG: Oracle Development Tools User 

Group 

OE: Operating Environment 

OE: Outlook Express 


OE: Output Enable 

(Hardware) 

OECD: Organization for Economic 

Cooperation and Development 


OEDB: Operating Experience DataBase 

Nuclear power plants use a common database of operating 

information 

OEM: Original Equipment Manufacturer 

A manufacturer that sells equipment for resale under an 

end-equipment manufacturer’s trademark or name 

(Hardware) 

OEP: Operand Execution Pipeline 

OEP: Original Entry Point 

(Software) 

OF: Outer Firewall 

(Security) 

OF: Overflow Flag 

OFA: Optimal Flexible Architecture 

OFB: Output FeedBack 

OFC: Open Financial Connectivity 

OFCOM: Office Fédéral de la COMmunication 


OFDM: Orthogonal Frequency Division 

Multiplexing 


OFMT: Output ForMaT 

OFP: Organizational Fitness Profiling 

OFS: Object File System 


OFS: Output Field Separator 

OFTP: Odette File Transfer Protocol 

Defined by the RFC 2204, it's a protocol that supports 

both direct communication between installations and 

indirect communication via a third party clearing centre 

(Network) 

OFX: Open Financial eXchange 

OGL: Open Graphics Language 

Single, vendor-independent Application Programming 

Interface (API) for the development of 2D and 3D graphics 

applications (Software) (SGI) 

OGSA: Open Grid Services Architecture 


OGSS: Ordered Grid Super Sampling 

Full-scene anti-aliasing technique (Hardware) 

OHCI: Open Host Controller Interface 

OIA: Operator Information Area 

OIC: Oh, I See 

(Net lingo) 

OID: Object IDentifier 

OIDL: Object Interface Definition Language 

OIL: Operator Identification Language 

OIM: Open Information Model 

Set of standard object models which define how 

applications can create exchangeable metadata 

OIS: Office Information System 

OIW: Osi Implementors Workshop 

OMF 

OJI: Open Jvm Integration 

Project extending the plug-in architecture to allow Java 

virtual machines to be plugged into Mozilla-based browser 

releases 

OKC: Online Knowledge Community 

OLAM: Optimal Linear Associative Memory 

OLAP: On-Line Analytical Processing 

OLB: Object Language Bindings 

(Databases) 

OLCP: On-Line Complex Processing 

OLE: Object Linking and Embedding 


OLED: Organic Light Emitting Diode 

(Hardware) 

OLE-DB: Object Linking and Embedding- 

DataBase 

COM-based data access objects (Databases) (Microsoft) 

OLGA: OnLine Guitar Archive 

OLI: Optical Line Interface 

(AT&T) 

OLIT: Open Look Intrinsics Toolkit 

An X Window system-based widget set and library used to 

create applications using the OPEN LOOK graphical user 

interface (Operating systems) 

OLMC: Open Look Intrinsic Toolkit 

OLSP: On-Line Service Provider 

O-LTM: Optical Line Terminating Multiplexer 

OLTP: OnLine Transaction Processing 

OM: Object Manager 

OM: Object Model 

(Software) 

OMA: Object Management Architecture 

(Microsoft) 

OMA: Outlook Mobile Access 


OMAP: Open Multimedia Applications Platform 

OMCA: OpenManage Client Administrator 

(Dell) 

OMCI: OpenManage Client Instrumentation 

OME: Open Messaging Environment 

Protocol 

OMF: Object Management Framework 

OMF: Object Module Format 

(Microsoft) 

Page 107 of 167 

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OMF 

OMF: Observation Markup Format 

Is an application of XML used to encode weather 

observation reports 

OMF: Open Media Framework 

OMF: Open Message Format 

OMFG: Oh My F***ing God 

(Net lingo) 

OMFI: Open Media Framework Interchange 

OMG: Object Management Group 


OMG: Oh My God (or Gosh) 

(Net lingo) 

OMI: Open Management Interface 

OMI: Open Messaging Interface 

OMI: Open Microprocessor Initiative 

OMI-STN: Optical Mode Interface- 

SuperTwisted Nematic 

OML: Object Manipulation Language 

(Software) 

OMR: Optical Mark Recognition 

OMS: Object Management System 

OMT: Object Modeling Technique 

(Software) 

OMW: On My Way 

(Net lingo) 

ON: Online Network 

ONA: Open Network Architecture 

ONAC: Operations Network Administration 

Center 

ONAL: Off Network Access Line 

ONC: Open Network Computing 

(Network) (Sun) 

ONDS: Open Network Distribution Services 

(IBM) 

ONE: Open Network Environment 

(Sun) 

ONI: Operator Number Identification 

ONMS: Open Network Management System 

ONS: Open Networking System 

ONU: Optical Network Unit 

OO: Object Oriented 

OOA: Object-Oriented Analysis 

OOAD: Object-Oriented Analysis and Design 

OOB: Out Of Band 


OOBE: Object-Oriented Business Engineering 

OOBE: Out-Of-Box Experience 

What happens when you first open the box containing your 

new computer 

OOCASE: Object Oriented Computer Aided 

Software Engineering 

OOCTG: Object-Oriented Cobol Task Group 

OOD: Object-Oriented Design 

OODB: Object-Oriented DataBase 

OODBMS: Object-Oriented DataBase 



OODL: Object-Oriented Dynamic Language 

OODS: Object-Oriented Data Source 

OPL 

OOF: Out Of Frame 

State that occurs when several consecutive Synchronous 

Digital Hierarchy (SDH) frames are received with invalid 

(errored) framing patterns (Communication) 

OOFS: Object-Oriented File System 


OOL: Object-Oriented Language 

OOo: OpenOffice.org 

Free productivity suite compatible with all major office 

suites. See also http://www.openoffice.org/ (Software) 

OOOE: Out Of Order Execution 

Processor level architecture feature (Hardware) 

OOOS: Object-Oriented Operating System 

OOP: Object-Oriented Programming 

(Software) 

OOPL: Object-Oriented Programming 

Language 

(Software) 

OOPS: Object-Oriented Programming System 

OOPSLA: Object-Oriented Programming 

Systems and Language Architecture 

OOPSTAD: Object-Oriented Programming for 

SmallTalk Application Development 

association 

OOS: Object-Oriented Systems 

OOS: Off-line Operating Simulator 

OOS: Out Of Service 

OOSA: Object-Oriented System Analysis 

OOSH: Object-Oriented SHell 

OOT: Object-Oriented Technology 

OO-TP: Object-Oriented Transaction 

Processing 

(Software) 

OOUI: Object-Oriented User Interface 

OP: OPeration 

OPA: Open Publishing Architecture 

OPAC: On-line Public Access Catalog 

OPC: Ole for Process Control 

OPC: Open Process Control 

OPC: Optical PhotoConductor 

OPC: Organic Photoconducting Cartridge 

(Hardware) 

OPCODE: OPerational CODE 

OPD: OPeranD 

OpenGL: OPEN Graphics Language 

Single, vendor-independent Application Programming 

Interface (API) for the development of 2D and 3D graphics 

applications (Software) (SGI) 

OPES: Open Pluggable Edge Services 

(Network) 

OPI: Open Press Interface 

(Software) 

OPL: Opaque Device Library 

OPL: OpenContent License 

Licensing scheme for content. See also 

http://opencontent.org/opl.shtml 

Page 108 of 167 

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OPM 

OPM: Operations Per Minute 

OPML: Outline Processor Markup Language 

XML-based format that allows exchange of outlinestructured 

information between applications running on 

different operating systems and environments 

OPOS: Ole for Point Of Sale 

OPP: Order Processing Pipeline 


OPROM: Optical Programmable Read Only 

Memory 

(Hardware) 

OPS: Off Premise Station 

A PBX station in a location separated from the location of 

the main PBX (Communication) 

OPS: Open Profiling Standard 

(Netscape) 

ops: Operations Per Second 

OPS: Oracle Parallel Server 

(Oracle) 

OPT: Open Protocol Technology 

OPT: OPTions 


OPUS: Octal Program Updating System 

OQL: Object Query Language 

OQS: Object Query Service 

(Software) 

OR: OverRun 

(Hardware) 

ORB: Object Request Broker 

ORBS: Open Relay Behaviour-modification 

System 

ORBZ: Open Relay Blackhole Zone 

ORDB: Open Relay DataBase 

A service to fight against spam or unsolicited commercial 

email (UCE). See http://www.ordb.org/ 

ORDBMS: Object Relational DataBase 


(Databases) 

ORDVAC: ORDnance Variable Automatic 


ORI: Online Retrieval Interface 

ORK: Office Resource Kit 


ORM: Object Role Modeling 

(Databases) 

ORM: Object/Relational Mapping 

Technique of mapping a data representation from an object 

model to a relational data model with a SQL-based schema 

(Software) 

ORM: Optical Remote Module 

ORMS: Operating Resource Management 

System 

(Software) 

OROM: Optical Read Only Memory 

(Hardware) 

O-ROM: Optical Read Only Memory 

ORPC: Object Remote Procedure Call 

(Software) 

ORS: Output Record Separator 


ORSS: Optical Recognition System Simulator 

OS: Operating System 

A collection of programs that monitor the use of the 

system and supervise the other programs executed by it 


OS/2: Operating System 2 


OS/360: Operating System/360 

OS/400: Operating System/400 

OS/E: Operating System/Environment 

OS-9: Operating System-9 

OSA: Open Scripting Architecture 

OSA: Open System Architecture 

OSI 

OSAF: Open Source Applications Foundation 

Organization that aims to create and gain wide adoption of 

Open Source application software of uncompromising 

quality and to build an innovative, sustainable alternative 

application despite market inertia. See also 

http://www.osafoundation.org/ (Organizations) 

OSCE: OfficeScan Corporate Edition 

OSCML: OSChooser Markup Language 


OSCRL: Operating System Command 

Response Language 

OSD: On-Screen Display 

(Hardware) 

OSD: Open Software Description 

An application of the eXtensible Markup Language (XML), 

is a vocabulary used for describing software packages and 

their dependencies for heterogeneous clients 

OSD: Open Software Distribution 

OSD: Operating System Deployment 


OSDL: Open Source Development Lab 

Non-profit, global consortium of leading technology 

companies dedicated to accelerating the adoption of Linux. 

See http://www.osdl.org/ (Organizations) 

OSDN: Open Source Development Network 

(Software) 

OSDS: Operating System for Distributed 

Switching 

OSE: Office Server Extension 


OSE: Open Systems Environment 

OSF: Open Software Foundation 


OSF: Operation System Function 

OSGi: Open Services Gateway Initiative 

Independent, non-profit corporation working to define and 

promote open specifications for the delivery of managed 

broadband services to networks in homes, cars and other 

environments. See also http://www.osgi.org (Organizations) 

OSHA: Occupational Safety and Health 

Administration 


OSI: Open Source Initiative 

OSI: Open Systems Interconnection 

7-layer hierarchical reference structure developed by the 

International Standards Organization for defining, 

specifying, and relating communications protocols; not a 

standard or a protocol (Communication) 

Page 109 of 167 

O

OSI/RM 

OSI/RM: Open Systems 

Interconnection/Reference Model 

OSIG: Online Special Interest Group 

OSM: On-Screen Manager 

(Hardware) (NEC) 

OSM: On-Screen Menu 

OSM: Operating system-Specific Module 

OSM: Optical Storage Manager 

OSME: Open Systems Message Exchange 

OSN: Office System Node 

OSN: Open Service Node 


OSN: Open Systems Network 

OSP: Ole db Simple Provider 


OSP: On-Screen Programming 

OSP: Operations Service Provider 

OSP: Optical Signal Processing 

(Hardware) 

OSP: Optical Storage Processor 

OSPF: Open Shortest Path First 

An Interior Gateway Protocol (IGP) specified by the 

Internet Engineering Task Force (IETF) (Network) 

OSPM: Operating System-directed Power 

Management 

With OSPM, the operating system determines when to do 

power management and the BIOS determines how to do 

power management. The two pieces work in concert to 

provide maximum power savings 

OSQL: Object Structured Query Language 

OSR: Oem Service Release 

OSS: Open Source Software 

(Software) 

OSS: Operating System-Specific 

OSS: Operations Support System 

OSSIM: Open Source Security Information 

Management 

Distribution of open source products that are integrated to 

provide an infrastructure for security monitoring. See also 

http://www.ossim.net/ (Security) 

OST: Offline STorage 

OSTA: Optical Storage Technology 

Association 


OSW/L2: Operating System-9 Windows/Level 

2 

OSX: Operating System Ten 

Apple's unix operating system (Operating systems) (Apple) 

OT: Object Technology 

OT: Off Topic 

(Net lingo) 

OTA: Office of Technology Assessment 

OTA: Operation-Triggered Architecture 

OTDR: Optical Time Domain Reflectometer 

OTF: Open Token Foundation 

OTI: Object Technology International 

OTM: Object Transaction Monitor 

(Software) 


OTM: Optical Translation Measurement 

(Hardware) 

OTML: Offline Tagging Markup Language 

OTN: Oracle Technology Network 

(Oracle) 

OTOH: On The Other Hand 

(Net lingo) 

OTP: One-Time Password authentication 

(Security) 

OTP: One-Time Programmable 

P&D 

OTP: Open Trading Protocol 

The Internet Open Trading Protocol (OTP) provides an 

interoperable framework for Internet commerce. It is 

payment system independent and encapsulates payment 

systems such as SET, Mondex, CyberCash, DigiCash, 

GeldKarte, etc. 

OTPROM: One-Time Programmable Read Only 

Memory 

OTS: Object Transaction Service 

OU: Organizational Unit 

OUCL: Oxford University Computing 

Laboratory 

OUG: Occam User Group 

OUI: Organizational Unique Identifier 

OURS: Open User Recommended Solutions 

group 

OUTS: OUTput String 

OV: OVerflow 

OVAL: Object-based Virtual Application 

Language 

OVL: OVerLay 


OVR: OVeRlay 


OWA: Outlook Web Access 


OWC: Office Web Component 

Collection of COM controls designed to bring interactive 

spreadsheet modeling, database reporting, and data 

visualization to a number of control containers (Software) 

(Microsoft) 

OWG: Optical WaveGuide 

OWL: Object Windows Library 


OWL: Web Ontology Language 

Semantic markup language for publishing and sharing 

ontologies on the World Wide Web. OWL is developed as a 

vocabulary extension of RDF (the Resource Description 

Framework) and is derived from the DAML+OIL Web 

Ontology Language 

O-WORM: Optical Write Once Read Many 

OWT: Open source Windowing Toolkit 

P: Peta 


p: Pico 


P&D: Plug & Display 

(Hardware) 

P 

Page 110 of 167 

O 

P

P&M 

P&M: Personalization & Membership 

(Microsoft) 

P&S: Point And Shoot 

Digital camera type (Hardware) 

P&S: Publish & Subscribe 

P/N: Part Number 

P/PC: Palm Personal Computer 

(Hardware) 

P/T: Part Time 

P2C2: Pantone Personal Color Calibrator 

(Pantone) 

P2P: Peer To Peer 

P2P: People To People 

P2P: Point To Point 

P2SC: Power 2 Super Chip 

IBM's Deep Blue processor (Hardware) (IBM) 

P3P: Platform for Privacy Preferencies 

Project 

PA: Platform for Privacy Preferences Project 


PAB: Personal Address Book 

PABX: Private Automatic Branch eXchange 

(Hardware) 

PAC: Perceptual Audio Coder 

(Hardware) 

PAC: Platform Adaptor Component 

PAC: Privilege Attribute Certificate 

PAC: Programme Advisory Committee 


PACE: Priority Access Control Enabled 

(3Com) 

PACS: Picture Archiving and Communication 

System 

PACS-L: Public Access Computer Systems List 

PAD: Packet Assembler/Disassembler 

An access device to an X.25 network (Communication) 

PADS: Pen Application Development System 

PAE: Physical Addressing Extension 

Extension for Windows 2000/2003 Advanced Server to 

address more than 4 GB of memory (Operating systems) 

(Microsoft) 

PAF: Postal Address File 

PAIH: Public-Access Internet Host 

PAIS: Public-Access Internet Site 

PAK: PAcKed 


PAL: PALette 


PAL: Paradox Application Language 

(Databases) (Borland) 

PAL: Phase Alternate Line 

European TV standard. A composite color standard similar 

to NTSC, except that the v-axis subcarrier reference 

signal inverts in phase at the horizontal line rate 

PAL: Privileged Architecture Library 


PAT 

PAL: Processor Abstraction Layer 

Contains the code necessary to initially boot the processor 

and includes error recovery and processor self-test 

routines (Hardware) (Intel) 

PAL: Programmable Array Logic 

(Hardware) 

PAL: Programmable Assembly Language 

PAL: Publication Access List 

SQL Server replication security mechanism (Databases) 

(Microsoft) 

PALC: Parallel-Aligned Liquid crystal Spatial 

Light Modulator 

Display technology 

PALS: Principles of the Alphabet Literacy 

System 

PAL-SLM: Parallel-Aligned Liquid crystal Spa 

tial Light Modulator 

(Hardware) 

PAM: Paging Area Memory 

PAM: Pluggable Authentication Module 

With the Pluggable Authentication Module (PAM) 

framework, multiple authentication technologies can be 

added without changing any of the login services, thereby 

preserving existing system environments (Security) 

PAM: Presence and Availability Management 

PAM: Primary Access Method 

PAM: Programmable Attribute Map 

PAM: Pulse-Amplitude Modulation 


PAMR: Public Access Mobile Radio 

PAN: Personal Account Number 

PAN: Personal Area Network 

(Network) 

PAP: PAcket-level Procedure 

PAP: Password Authentication Protocol 

A security provision in point-to-point protocol (PPP) 

(Network) 

PAP: Printer Access Protocol 

PAP: Push Access Protocol 

PAR: Parallel 

PAR: Personal Animation Recorder 

PAR: Personal Audio Recorder 

(Hardware) 

PAR: Project Authorization Request 

PARC: Palo Alto Research Center 

(Organizations) (Xerox) 

PA-RISC: Precision Architecture Reduced 

Instruction Set Computer 

(HP) 

PAS: PAScal 


PAS: Publicly Available Specification 

PAS/2: Personal Application System/2 

PAT: PATtern 


PAT: Performance Acceleration Technology 

Speeds data flow between the processor and system 

memory to increase performance. Introduced with the Intel 

875P chipset (Hardware) (Intel) 

Page 111 of 167 

P

PAT 

PAT: Port Address Translation 


PATA: Parallel Advanced Technology 

Attachment 


PATN: Port Access Telephone Number 

PAV: Parallel Access Volumes 

PAWS: Protect Against Wrapped Sequences 

(Network) 

PAX: Portable Archive eXchange 

PB: PetaByte 

2 to the 50th power bytes. Is equal to 1024 terabytes 

PB: Pipeline Burst 

Cache memory architecture (Hardware) 

PBA: Printed Board Assembly 

PBC: Port Bypass Circuit 

(Hardware) 

PBCAK: Problem Between Chair And Keyboard 

It's when the problem is the computer user (Net lingo) 

PBD: PowerBuilder Dynamic library 


PBE: Prompt By Example 

PBGA: Plastic Ball Grid Array 

(Hardware) 

PBI: Phone Based Interface 

PBM: Play By Mail 

PBOT: Physical Beginning of Tape 

(Hardware) 

PBR: Policy-Based Routing 

(Cisco) 

PBX: Private Branch eXchange 

Privately owned central switching office (Communication) 

PC: Personal Computer 

PC: Printed Circuit 

PC: Program Counter 

A CPU register that contains the address (location) of the 

instruction to be executed next in the program sequence 

PC: Programmable Controller 

A slightly smart electronic circuit, usually for industrial 

processes; acronym quickly changed to PLC after IBM 

brought out its Personal Computer (Hardware) 

PC/IXF: Personal Computer Intergrated 

eXchange Format 

PC/SC: Personal Computer Smart Card 

(Hardware) 

PC/TCP: Personal Computer Integrated 

eXchange Format 

PCA: Payment gateway Certification Authority 

PCA: Personal internet Client Architecture 

(Intel) 

PCA: Power Calibration Area 

PCACIAS: Personal Computer Automated 

Calibration Interval Analysis System 

PCAV: Partial Constant Angular Velocity 

(Hardware) 

PCB: Printed Circuit Board 

(Hardware) 

PCB: Program Control Block 


PCBC: Plain Cipher Block Chaining 

PCBO: Personal Computer Branch Office 

(IBM) 

PCD: Photo Compact Disc 

File format for digitized photos (Kodak) 

PCDA: Program Controlled Data Acquisition 

PCR 

PC-DOS: Personal Computer - Disk Operating 

System 

(IBM) 

PCEB: PCi to Eisa Bridge 

(Intel) 

PCF: Packet Control Function 


PCFS: Personal Computer FIle System 

A file system specification that provides the capability to 

read and write files in DOS format on the SPARC 


PCI: Peripheral Component Interconnect 

A 32-bit bus providing a maximum 132 Mbyte/sec data 

transfer rate. PCI devices have autoconfiguration 

capabilities and do not have to be configured by users 

(Hardware) 

PCI: Protocol Control Information 

PC-I/O: Program Controlled Input/Output 

PCIC: Pc-Card Interrupt Controller 

PCI-E: Peripheral Component Interconnect - 

Express 

New interface replacing PCI and AGP, max bandwidth of 

500MB/sec (Hardware) 

PCL: Portable Common Loops 

PCL: Printer Control Language 

(HP) 

PCL: Process Control Language 

PCL: Programmable Command Language 

PCM: Personal Computer Manufacturer 

PCM: Physical Connection Management 

PCM: Printer Cartridge Metric 

(HP) 

PCM: Process Change Management 

(Software) 

PCM: Pulse Code Modulation 


PCMA: Paired Carrier Multiple Access 

PCMC: Pci, Cache and Memory Controller 

(Intel) 

PCMCIA: Personal Computer Memory Card 

International Association 

An organization that supports several standards for a 

compact hardware interface that accepts a variety of 

devices (Organizations) 

PCMIM: Personal Computer Media Interface 

Module 

PCMS: Project and Configuration 


PCN: Personal Computer Network 

PCN: Public Communications Network 

PCNFS: Personal Computer Network File 

System 

PCO: Point of Control and Observation 

PCR: Packet Cell Rate 

Page 112 of 167 

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PCR 

PCR: Processor Configuration Register 

PCS: Patchable Control Store 

PCS: Personal Communication Service 

PCS: Personal Computing System 

(Hardware) 

PCS: Personal Conferencing Specification 

PCS: Physical Code Sublayer 

(Network) 

PCS: Planning Control Sheet 

PCS: Print Contrast Signal 

PCS: Process Control Systems 

PCS: Program Counter Store 

PCS: Project Control System 

PCSA: Personal Computing Systems 

Architecture 

PCT: PiCTure 


PCT: Private Communication Technology 


PCTE: Portable Common Tool Environment 

PCX: PiCture eXchange 


PD: Personal Display 

(Hardware) 

PD: Phase change Dual 

Optical recording system (Hardware) (Matsushita) 

PD: Portable Device 

(Hardware) 

PD: Public Domain 

PDA: Personal Digital Assistant 

PDB: Palm DataBase 


PDB: Program DataBase 

Microsoft's format for debug indormation, not embedded in 

the object file or executable (Software) (Microsoft) 

PDC: Personal Digital Cellular 

(Hardware) 

PDC: Primary Domain Controller 

Provides user/computer domain authentication (Operating 


PDC: Professional Developer Conference 

(Microsoft) 

PD-CD: Phase-change Dual Compact Disk 

(Hardware) 

PDD: Physical Device Driver 

PDD: Portable Digital Document 

PDE: Plug-in Development Environment 

Project extending the Platform and the JDT to provide 

views and editors that make it easier to build plug-ins for 

Eclipse. See www.eclipse.org (Software) 

PDES: Product Data Exchange Specification 

PDF: Package Definition File 

PDF: Portable Document Format 

File format for document interchange (Adobe) 

PDF: Printer Description File 

File name extension (Borland) 

PDF: Processor Defined Function 


PDF: Program Development Facility 

PDH: Plesiochronous Digital Hierarchy 


PDI: Personal Data Interchange 

(Software) 

PDI: Power and Data Interface 

PDIAL: Public Dialup Internet Access List 

PDK: Product Development Kit 

(Network) (Intel) 

PDL: Page Description Language 

PDL: Program Description Language 

PDL: Program Design Language 

PDM: Product Data Management 

PDM: Program Development Manager 

PDN: Public Data Network 

(Network) 

PDO: Portable Distributed Objects 


PDOM: Persistent Document Object Model 

PDP: Parallel Data Processing 

PDP: Plasma Display Panel 

(Hardware) 

PDU 

PDP: Policy Decision Point 

The point where policy decisions are made, responsible for 

handling policy decisions on behalf of PEPs (Network) 

PDP: Primary Dos Partition 


PDP: Programmable Data Processor 

PDQ: Parallel Data Queries 

PDQ: Pretty Darn Quick 

(Net lingo) 

PDR: Personal Digital Recorder 

(Hardware) 

PDS: Packet Driver Specification 

PDS: Partitioned Data Set 


PDS: Planetary Data System 

PDS: Portable Document Software 

PDS: Processor Direct Slot 

(Apple) 

PDS: Professional Developer's Summit 

(Microsoft) 

PDSN: Packet Data Serving Node 

Provides access to the Internet, intranets and applications 

servers for mobile stations utilizing a cdma2000 Radio 

Access Network (RAN) 

PDSP: Peripheral Data Storage Processor 

PDSS: Post Development and Software 

Support 

PDT: Pacific Daylight Time 


PDT: Performance Diagnostic Tool 

(IBM) 

PDT: Pliable Display Technology 

(Hardware) 

PDT: Programmable Drive Table 

PDU: Plug Distribution Unit 

Page 113 of 167 

P

PDU 

PDU: Protocol Data Unit 

The ISO/OSI term for packet. A PDU is a data object 

exchanged by protocol machines (entities) within a given 

layer. PDUs consist of both protocol control information 

(PCI) and user data 

PDW: Package and Deployment Wizard 

(Microsoft) 

PDX: ParaDoX 


PDX: Phone Data eXchange 

(Hardware) 

PDX: Printer Description eXtension 

PE: Parity Error 

(Hardware) 

PE: Parity Even 

PE: Personal Edition 

(Software) 

PE: Phase Encoding 

PE: Portable Executable 

File format for Win32 programs (Software) (Microsoft) 

PE: Processing Element 

(Hardware) 

PE: Professional Edition 

(Software) 

PE: Protect Enable 

PEA: Pocket Ethernet Adapter 

PEAP: Protected Extensible Authentication 

Protocol 

A protocol proposed by Microsoft, Cisco and RSA Security 

for securely transporting authentication data, including 

passwords, over 802.11 wireless networks (Security) 

PEAR: Php Extension and Application 

Repository 

See http://pear.php.net (Software) 

PEARL: Process and Experiment Automation 

Realtime Language 

PEBCAC: Problem Exists Between Chair and 


Tech support types sometimes use this to explain to each 

other that the user is incompetent (Net lingo) 

PEBCAK: Problem Exists Between Chair And 

Keyboard 

Describes the location of many computer glitches (Net 

lingo) 

PEBKAC: Problem Exists Between Keyboard 

And Chair 

An answer to problems with inexperienced computer users 

(Net lingo) 

PEC: Program Execution Control 

PECL: Php Extension Community Library 

See http://pecl.php.net (Software) 

PEEK: Partners Early Experience Kit 

PEEL: Programmable Electrically Erasable 

Logic 

(Hardware) 

PEL: Picture ELement 

(IBM) 

PEM: Port Expander Module 

PEM: Privacy-enhanced Electronic Mail 

(Security) 


PEOT: Physical End Of Tape 

(Hardware) 

PEP: Packet Exchange Protocol 

PEP: Packetized Ensemble Protocol 

PEP: Point-Edge-Polygon 

Type of graphics editor (Software) 

PFX 

PEP: Policy Enforcement Point 

A port on a network device where the policy decisions are 

actually enforced (Network) 

PERC: Portable Environment for Real-time 

Control 


PERC: PowerEdge Raid Controller 


PERL: Practical Extraction Report Language 

A flexible programming language especially designed for 

processing text (Software) 

PERM: Pre-Embossed Rigid Magnetic 

(Hardware) 

PEROM: Programmable Erasable Read Only 

Memory 

PERT: Program Evaluation and Review 

Technique 

PES: Packetized Elementary Stream 


PES: Positioning Error Signal 

PES: Processor Enhancement Socket 

PES: Proposed Encryption Standard 

PET: Personal Electronic Transactor 

Commodore's first personal computer (Hardware) 

PET: Print Enhancement Technology 

(Compaq) 

PET: Progressive Educational Technology 

PEX: Phigs Extension to X 

A protocol for 3-D graphics in a network window system 

that supports both PHIGS and PHIGS PLUS features 

PFA: Predictive Failure Analysis 

PFB: Printer Font Binary 


PFC: Power Factor Correction 

Feature included in some power supply boxes that reduces 

the amount of reactive power generated (Hardware) 

PFC: Powerbuilder Foundation Class 

(Software) (Sybase) 

PFE: Programmer's File Editor 

PFM: Printer Font Metrics 


PFN: Page Frame Number 

PFPU: Processor Frame Power Unit 

PFR: Portable Font Resource 

PFR: Power Fail Restart 

PFS: Page Free Space 

(Databases) 

PFS: Parallel File System 


PFX: Personal inFormation eXchange 

(Microsoft) 

Page 114 of 167 

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PFY 

PFY: Pimple Faced Youth 

Young assistant to Bastard Operator From Hell (BOFH) 

(Net lingo) 

PGA: Pin Grid Array 


PGA: Professional Graphics Adapter 

(IBM) 

PGA: Programmable Gate Array 

(Hardware) 

PGC: Program Group Control 

(Microsoft) 

PGD: Planar Gas Discharge 

Display technology (Hardware) 

PGDN: PaGe DowN 

PGL: Professional Graphics Language 

PGM: Portable GrayMap 

File format for images (Software) 

PGM: Pragmatic General Multicast 

Reliable multicast transport protocol for applications that 

require ordered, duplicate-free, multicast data delivery 

from multiple sources to multiple receivers (Network) 

PGM: ProGraM 

PGML: Precision Graphics Markup Language 

(Adobe) 

PGP: Pretty Good Privacy 

Encryption program (Software) 

PGP: ProGram Parameter 

File name extension (Autodesk) 

PGUP: PaGe UP 

PHB: Per-Hop-Behavior 

The forwarding treatment given to a specific class of traffic, 

based on criteria defined in the Differentiated Service field. 

Routers and switches use PHBs to determine priorities for 

servicing various traffic flows (Network) 

PHB: Pointy Haired Boss 

Taken from the Dilbert comic strip (Net lingo) 

PHF: Perfect Hash Function 

(Software) 

PHIGS: Programmer's Hierarchical 

Interactive Graphics Standard 

An international standard 3-D graphics library consisting 

of a graphical tool set for application developers. PHIGS 

uses hierarchical data structures. You can create, alter, 

manipulate, and store objects dynamically 

PHIGS PLUS: Programmer's Hierarchical 

Interactive Graphics Standard Plus Lumiere 

Und Surfaces 

An extension to PHIGS that includes additional 

capabilities, such as lighting from single and multiple 

sources, depth-cueing, NURBS, and complex geometric 

primitives 

PHOLED: PHosphorescent Organic Light 

Emitting Diode 

(Hardware) 

PHP: Personal Home Pages 

Now is Perl Hypertext Preprocessor 

PHP: Php: Hypertext Preprocessor 

Open-source general-purpose server-side scripting 

language that is especially suited for Web development and 

can be embedded into HTML. See also http://www.php.net/ 

(Software) 

PHS: Personal Handphone System 

PHY: PHisical laYer 


PI: PHysical laYer 

PIA: Peripheral Interface Adapter 

(Hardware) 

PIM 

PiB: PebIByte 



TiB 

PIBKAC: Problem Is Between Keyboard And 

Chair 

Typical cause of most computer errors (Net lingo) 

PIC: Personal Information Carrier 

PIC: Personal Intelligent Communicator 

PIC: Point In Call 

PIC: Primary Interexchange Carrier 


PIC: Priority Interrupt Controller 

(Hardware) 

PIC: Programmable Interrupt Controller 

(Hardware) 

PICO: PIne COmposer 

Simple, command line Unix text editor (Software) 

PICS: Platform for Internet Content Selection 

PICS: Plug-in Inventory Control System 

PICS: Protocol Implementation Conformance 

Statement 

PICS/DCPR: Protocol Implementation 

Conformance Statement/Detailed Continuing 

Property Record 

PICT: PICTure 

PID: Personal IDentifier 

(Software) 

PID: Process IDentifier 

A unique, system-wide, identification number assigned to a 

process. Also called process ID, process number 


PID: Product IDentifier 

PID: Proportional, Integral, Derivative 

PIDL: Personalized Information Description 

Language 

PIE: Presence, Identity and Edge 

Core constituents of peer to peer (P2P) applications 

PIER: Procedures for Internet/Enterprise 

Renumbering 

PIF: Picture Interchange Format 


PIF: Program Information File 


PII: Pentium 2 


PII: Personally Identifiable Information 

(Security) 

PII: Program Integrated Information 

PIII: Pentium 3 


PIIX: Pci Ide/Isa Accelerator 

PILOT: Programmed Inquiry Learning Or 

Teaching 

PIM: Personal Information Manager 

PIM: Platform Independent Model 

Page 115 of 167 

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PIM 

PIM: Primary Interface Module 

PIM: Print Image Matching 

(Hardware) 

PIM: Protocol Independent Multicast 

IP routing protocol-independent and can leverage 

whichever unicast routing protocols are used to populate 

the unicast routing table, including EIGRP, OSPF, BGP, 

and static routes (Network) 

PIM-DM: Protocol Independent Multicast- 

Dense Mode 

Uses a push model to flood multicast traffic to every corner 

of the network (Network) 

PIM-SM: Protocol Independent Multicast- 

Sparse Mode 

Uses a pull model to deliver multicast traffic. Only network 

segments with active receivers that have explicitly 

requested the data will receive the traffic (Network) 

PIN: Personal Identification Number 

PIN: Positive Intrinsic Negative 

PIN: Process Identification Number 

PIN: Processor Independent Netware 

PINE: Pine Is Not Elm 

PING: Packet INternet Groper 

(Network) 

PINX: Private Integrated services Network 

eXchange 


PIO: Parallel Input/Output 

PIO: Processor Input/Output 

PIO: Programmable Input/Output 

(Hardware) 

PIP: Pattern and Information Processing 

PIP: Periphal Interchange Program 

PIP: Peripheral Interchange Program 

PIP: Personal Information Processor 

PIP: Picture In Picture 

(Hardware) 

PIP: Problem Isolation Procedure 

PIP: Programmable Interconnect Point 

PIPO: Parallel In, Parallel Out 

PIR: Protocol Independent Routing 

PIR: Public Interest Registry 

Registry for the .org domain name extension 


PIT: Point In Time 

PIT: Programmable Interval Timer 

(Hardware) 

PITA: Pain In The A** 

(Net lingo) 

PITB: Pain In The Butt 

(Net lingo) 

PIU: Path Information Unit 

PJL: Printer Job Language 


PJPEG: Progressive Joint Photographic 

Experts Group 

Compressed images file format 


P-JPEG: Progressive Joint Photographic 

Experts Group 

Compressed images file format 

PK: Primary Key 

(Databases) 

PKC: Public Key Cryptography 

PKCS: Public Key Cryptography Standard 

PKE: Private Key Encryption 

PKI: Public Key Infrastructure 

(Security) 

PKIX: Public-Key Infrastructure (X.509) 

A working group of the Internet Engineering Task Force 

(IETF) that is developing Internet standards needed to 

support a PKI based on X.509 certificates 

PKM: Personal Knowledge Management 

PL: Perl Language 


PL/1: Programming Language/1 


PL/IP: Parallel Line Internet Protocol 

PL/M: Programming Language for 

Microcomputers 

(Microsoft) 

PL/SQL: Procedural Language/Structured 

Query Language 


PLA: Programmable Logic Array 

An array of logic elements. Its interconnections are 

programmable after manufacture (Hardware) 

PLAF: Pluggable Look And Feel 

(Software) 

PLATO: Programmed Logic for Automatic 

Teaching Operations 

PLB: Picture Level Benchmark 

In computer graphics, an industry-standard benchmark 

method used to measure graphics performance 

PLBCAK: Problem Lies Between Chair And 

Keyboard 

Describes the location of many computer glitches (Net 

lingo) 

PLBSI: Picture Level Benchmark Sample 

Implementation 

PLC: PowerLine Communication 

Technology that uses the power lines to connecto to the 

Internet (Network) 

PLC: Programmable Logic Controller 

(Hardware) 

PLCC: Plastic Leadless Chip Carrier 

pLED 

PLCP: Physical Layer Convergence Procedure 

PLD: Programmable Logic Device 

(Hardware) 

PLDI: Programming Language Design and 

Implementation 

PLDS: Pilot Land Data System 

(NASA) 

PLE: Programmable Logic Element 

(Hardware) 

pLED: Polymeric Light Emitting Diode 

(Hardware) 

Page 116 of 167 

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PLF 

PLF: Pluggable Look and Feel 

(Software) 

PLIP: Parallel Line Internet Protocol 


PLL: Phase-Locked Loop 

PLL: PreLinked Library 


PL-LCD: PhotoLuminescent Liquid Cristal 

Display 

(Hardware) 

PLMN: Public Land Mobile Network 


PLO: Phase Locked Oscillator 

(Hardware) 

PL-OU: PhotoLuminescent Liquid Crystal 

Display 

PLS: PhysicaL Signaling 

PLS: PLeaSe 

(Net lingo) 

PLS: Primary Link Station 

PLU: Primary Logical Unit 

PLV: Production Level Video 

PM: Performance Monitoring 

PM: Peripheral Module 

PM: Phase Modulation 

PM: Power Management 

(Hardware) 

PM: Presentation Manager 

PM: Preventative Maintenance 

PM: Private Message 

(Net lingo) 

PM: Process Manager 

PM: Programming Model 


PM/X: Presentation Manager for X 

PM6: PageMaker 6 

Filename extension (Adobe) 

PMA: Photo Marketing Association 


PMA: Physical Medium Attachment 

(Network) 

PMA: Program Memory Area 

PMAC: Peripheral Module Access Controller 

PMC: Pci Mezzanine Card 

(Hardware) 

PMC: Project Management Committee 

(Software) 

PMD: Packet Mode Data 

PMD: Physical Media Dependence 

(Network) 

PME: Power Management Event 

Feature that allows most LAN devices to wake up from 

standby states (S1 or S3) (Hardware) 

PMFJI: Pardon Me For Jumping In 

(Net lingo) 

PMI: Protected Mode Interface 


POA 

PML: Pattern Markup Language 

XML-based format to describe software patterns. A pattern 

represents a recurring solution to a software development 

problem within a particular context (Software) 

PML: Personal Mailing List 

PMM: Post Memory Manager 

A mechanism used by option ROMs to allocate RAM 

memory for use during system startup (Hardware) 

PMML: Predictive Modeling Markup Language 

PMMU: Paged Memory Management Unit 

(Hardware) 

PMOS: Positive Channel Metal Oxide 

Semiconductor 

PMP: Performance Management Pack 


PMP: Point to MultiPoint 

PMP: Portable Music Player 

(Hardware) 

PMP: Preventive Maintenance Package 

PMPL: Pi**ing My Pants Laughing 

(Net lingo) 

PMR: Problem Management Report 

(IBM) 

PMS: Pantone Matching System 

A spot color matching system used by printers. By 

specifying a Pantone name or number you are assured of 

having a known spot color in the printed page 

PMS: Policy Management System 

PMT: PhotoMultiuplier Tube 

Scanning sensor (Hardware) 

PMU: PhotoMultiplier Tube 

PN: Processing Node 

PNA: Phoneline Networking Alliance 


PNA: Programmable Network Access 

PNA: Progressive Networks Audio 

A proprietary protocol for backward compatibility with 

RealSystem versions 3 through 5. URLs using PNA start 

with pnm:// 

PNC: Planet NetCom 

Australian internet service provider 

PNC: Prestige Network Commander 

(Software) (Zyxel) 

PnD: Plug aNd Display 

(Hardware) 

PNG: Portable Network Graphics 

File format for graphics network transmission 

PNI: Prescott New Instructions 

Processor core extenstion code which serves to improve 

thread synchronization (Hardware) (Intel) 

PNNI: Private Network to Network Interface 

PNNI: Public Network Node Interface 

PnP: Plug aNd Play 

PNS: PeaceNet Sweden 

PNW: Personal NetWare 

PO: Parity Odd 

PO: Purchase Order 

POA: Portable Object Adapter 

Page 117 of 167 

P

POA 

POA: PostOfiice Agent 

(Novell) 

POC: Point Of Contact 

POC: Proof Of Concept 

POCM: Portal Object Component Model 

POCSAG: Post Office Code Standardization 

Advisory Group 

Synchronous digital paging scheme (Communication) 

POD: Piece Of Data 

POD: Plain Old Documentation 

POD: Plain Old Dos 

POD: Power On Display 

POD: Problem Of the Day 

Today's current difficulty with software (or hardware) 

POD: Proof of Deposit 

Software system used by financial institutions to verify 

teller transactions. Usually consists of reader/sorter 

control software, reject-reentry system, and reporting 

systems (Software) 

POD: Publishing On Demand 

PODP: Pentium OverDrive Processor 

An upgrade processor for the 486 systems intended to 

emulate a Pentium (586) (Hardware) (Intel) 

POE: Power Open Environment 

POE: Power Over Ethernet 

(Hardware) 

POEP: Primary Operand Execution Pipeline 

POF: Plastic Optic Fiber 

POH: Path OverHead 

POH: Power-On Hours 

POI: Path Overhead Indicator 

POI: Point Of Information 

POI: Point Of Interaction 

POI: Point Of Interest 

POIX: Point Of Interest eXchange 

POJO: Plain Old Java Object 

Term coined to denote a normal Java object that is not a 

JavaBean, an EntityBean, a SessionBean, etc., and does 

not serve any other special role or implement any special 

interfaces of any of the Java frameworks (EJB, JDBC, ...) 

(Software) 

POL: Problem-Oriented Language 

PON: Purchase Order Number 

POOL: Parallel Object Oriented Language 

POOP: Parallel Object Oriented Programming 

Programming for parallel processors in any object-oriented 

programming language (Software) 

POP: Package for Online Programming 

POP: Point Of Presence 

(Network) 

POP: Post Office Protocol 

A standard protocol used for retrieving e-mail from a mail 

server (Network) 

POP: Power-On Password 

(Security) 

POP2: Post Office Protocol 2 

(Network) 


POP3: Post Office Protocol 3 

(Network) 

POPA: POP All registers 

POPF: POP Flags 

PPD 

POPL: Principles of Programming Languages 

POR: Plan Of Record 

POR: Point Of Return 

POR: Power-On-Reset 

POS: Packet Over Sonet 

(Network) 

POS: Parent Over Shoulder 

POS: Persistent Object Server 

POS: Pick Operating System 

Old operating system (Operating systems) 

POS: Piece Of S**t 

(Net lingo) 

POS: Point Of Sale 

(Hardware) 

POS: POSitive 

POS: Programmable Option Select 

POSE: PalmOS Emulator 

POSE: Picture-Oriented Software Engineering 

POSI: Promoting conference for Open System 

Interconnect 

POSIX: Portable Operating System Interface 

A set of standards that define the applications interface to 

basic system services for input/output, file system access, 

and process management. It uses the C programming 

language, which establishes standard semantics and 

syntax (Operating systems) 

POST: Power On Self Test 

Personal computer boot test 

POSTNET: POSTal Numeric Encoding 

Technique 

Bar code 

POSYBL: PrOgramming SYstem for distriButed 

appLications 

POTS: Plain Old Telephone Service 

Basic telephone service supplying standard single line 

telephones, telephone lines, and access to the Public 

Switched Telephone Network (PSTN) 

POTS: Plain Old Time Sharing 


POV: Point Of View 

(Net lingo) 

POWER: Performance Optimization With 

Enhanced Risc 

(IBM) 

PowerPC: Performance Optimization With 

Enhanced Risc Performance Computing 

PP: Parallel Port 

PP: Physical Partition 

PP: Physical Plane 

PPA: Pixel Processing Accelerator 

(Hardware) 

PPC: PowerPC 

PPC: Program to Program Communication 

PPD: Partial Packet Discard 

(Network) 

Page 118 of 167 

P

PPD 

PPD: PostScript Printer Description 


PPDS: Personal Printer Data Stream 

(IBM) 

PPGA: Plastic Pin Grid Array 

IC pins organization 

ppi: Pixels Per Inch 

PPI: Precise Pixel Interpolation 

PPI: Programmable Peripheral Interface 

PPID: Parent Process IDentifier 

PPIT: Perpetual Point-In-Time 

(Fujitsu) 

PPL: Pcboard Programming Language 

PPL: PeoPLe 

(Net lingo) 

PPL: Polymorphic Programming Language 

ppm: Pages Per Minute 

Printing engine speed (Hardware) 

PPM: Perl Package Manager 

(Software) 

PPM: Portable PixelMap 

File format for images (Software) 

PPM: Processor Power Module 

(Hardware) 

PPM: Pulse Position Modulation 

PPML: Personalized Print Markup Language 

Printer Language 

PPN: Project Programmer Number 

P-POP: Plain-Paper Optimized Printing 


PPP: Point to Point Protocol 

An internet protocol for host dial up connections. PPP 

frames (Service Data Units) can support the transport of 

various (encapsulated) Protocol Data Units (Network) 

PPPoA: Point-to-Point Protocol Over Atm 

(Network) 

PPPoATM: Point-to-Point Protocol Over 

Asynchronous Transfer Mode 

High-speed switching technique used to transmit high 

volumes of voice, data, and video traffic. ATM operates at 

speeds ranging from 25 Mbps to 622 Mbps and is used 

mainly in telephone company backbone networks (Network) 

PPPoE: Point to Point Protocol Over Ethernet 

(Network) 

PPPoI: Point to Point Protocol Over Isdn 

(Network) 

PPPPPP: Proper Planning Prevents Piss-Poor 

Performance 

To plan ahead (Net lingo) 

PPRC: Peer to Peer Remote Copy 

Data replication (Software) (IBM) 

PPS: Packets Per Second 

(Network) 

PPS: Per-Pixel Shading 

PPS: Power Personal Systems 

(IBM) 

PPS: Precision Positioning System 

PPS: Public Packet Switching 


PPT: PowerPoinT 

File format for slide presentations (Microsoft) 

PRMD 

PPTP: Point to Point Tunneling Protocol 

A system designed to help create Virtual Private Networks 

over the Internet and protect the data sent over public 

wires (Network) 

PPVPN: Provider Provisioned Virtual Private 

Network 

(Network) 

PQ: PowerQuest 

Manufacturer 

PQA: Palm Query Application 

PQFP: Plastic Quad Flat Package 

PQO: Parallel Query Option 

PQS: Persistent Query Service 


PR: Packet Radio 

PR: Performance Rating 

(Hardware) 

PR: Public Relations 

PRACSA: Public Remote Access Computer 

Standards Association 

PRAM: Parallel Random-Access Machine 

PRAM: Parameter Random Access Memory 

P-RAM: Parameter Random Access Memory 

PRC: Pilot Resource 

File name extension (3Com) 

PRC: Primary Reference Clock 

Clock used in synchronous networks like SONET and SDH 


PRCS: Project Revision Control System 

Front end to a set of tools that (like CVS) provide a way to 

deal with sets of files and directories as an entity, 

preserving coherent versions of the entire set (Software) 

PRD: PRinter Driver 


PReP: Powerpc REference Platform 

PREPNet: Pennsylvania Research and 

Economic Partnership NETwork 

PRF: PReFerences 


PRF: Problem Report Form 

PRF: Pulse Repetition Frequency 

PRI: Primary Rate Interface 

An ISDN standard, similar to basic rate interface (BRI), 

defined by CCITT protocol, but providing multiple B 

channels (23 or 30) supported by a single D channel 


PRIDE: PRofitable Information by DEsign 

PRISM: Parallel Reduced Instruction Set 

Multiprocessing 

PRISM: PhotoRefractive Information Storage 

Materials 

(Hardware) 

PRJ: PRoJect 


PRM: Partner Relationship Management 

PRM: Private Mobile Radio 

PRMD: PRivate Management Domain 

Page 119 of 167 

P

PRML 

PRML: Partial-Response Maximum-Likelihood 

PRN: Printer 

PRNG: Pseudo-Random Number Generator 

PRO: PROfile 


PROC: PROCedure 

PROCFS: PROCess FIle System 

A type of file system that resides in memory. The PROCFS 

contains a list of active processes, by process number, in 

the /proc directory. Information in the /proc directory is 

used by commands such as ps (Operating systems) 

PROFS: PRofessional OFfice System 

(IBM) 

PROG: PROGram 

PROGID: PROGrammatic IDentifier 

(Software) 

PROLOG: PROgramming in LOGic 


PROM: Programmable Read Only Memory 

A permanent memory chip programmed by the user rather 

than at the chip manufacturer, as is true with a ROM. You 

need a PROM programmer or burner to write data onto a 

PROM (Hardware) 

PROMATS: PROgrammable MAgnetic Tape 

System 

PROTEL: Procedure Oriented Type Enforcing 

Language 

PRTSC: PRinT SCreen 

PS: Personal Services 

Office automation integrated programs (Software) 

PS: Pixel Shader 


PS: PlayStation 

Game console (Hardware) (Sony) 

PS: PostScript 

File format for graphic printers 

PS: Power Supply 

(Hardware) 

PS: Presentation Service 

PS: Privilege Service 

PS: Proportional Spacing 

PS/2: Personal System 2 

IBM personal computer family (Hardware) (IBM) 

PS2: PlayStation 2 

Game console (Hardware) (Sony) 

PSAPI: Presentation Space Application 


PSC: Personal Super Computer 

PSC: Primary Site Controller 


PSC: Print Server Command 

PSC: Product Service Center 

PSCNet: Pittsburgh Supercomputing Center 

NETwork 

PSD: PhotoShop Drawing 

File name extension. Used by Photoshop and other Adobe 

programs (Software) (Adobe) 

PSD: Postal Security Device 

(Hardware) 


PSD: Programmer's Supplementary 

Documents 

PSDC: Public Switched Digital Capability 

PSDN: Packet-Switched Data Network 

(Network) 

PSDS: Packet-Switched Data Service 


PSE: Packet Switch Exchange 

PSE: Persistent Storage Engine 

(Databases) 

PSE: Port Switched Ethernet 

PSF: Permanent Swap File 

PSF: Print Services Facility 

PSfD: Premier Support For Developers 

(Microsoft) 

PSID: PostScript Image Data 

PSIU: Packet Switch Interface Unit 

PSK: Phase-Shift Keying 


PSL: Problem Statement Language 

PSL: Public Software Library 

PSM: Persistent Storage Manager 

(Hardware) 

PSM: Persistent Stored Module 

(Databases) 

PSRT 

PSM: Personal Security Manager 

Set of libraries that perform cryptographic operations on 

behalf of a client application. These operations include 

setting up an SSL connection, object signing and signature 

verification, certificate management, and other common 

PKI functions 

PSM: Personal Software Marketing 

PSM: Platform Specific Model 

PSM: Printing Systems Manager 

PSMG: Play Streaming Media Group 


PSN: Packet Switching Network 

A node in the ARPANET and MILNET, formerly called an 

interface message processor (IMP) (Network) 

PSN: Processor Serial Number 

(Hardware) 

PSO: Personal Service Organization 

PSP: PaintShop Pro 

(Software) 

PSP: Personal Software Product 

(IBM) 

PSP: Preventive Service Planning 

(IBM) 

PSP: Program Segment Prefix 

PSPDN: Packet-Switched Public Data Network 

PSR: PowerSoft Report 


PSRAM: PseudoStatic Random Access Memory 

(Hardware) 

P-SRAM: Pseudo-Static Random Access 

Memory 

PSRG: Privacy and Security Research Group 

PSRT: PostScript Round Table 

Page 120 of 167 

P

PSS 

PSS: Packet Switch Services 

PSS: Print SubSystem 

Software for IBM mainframes that provides an AFP and line 

data printing solution using PCL and PostScript printers 

(Software) 

PSS: Process Status Structure 

PSS: Product Support Service 

PSSP: Parallel System Support Program 


PST: Pacific Standard Time 


PST: Pakistan Standard Time 


PST: Public Switched Telephone 

PSTN: Public Switched Telephone Network 

Usually refers to the local telephone company 

PSU: Power Supply Unit 

PSU: Program Storage Unit 

PSW: Program Status Word 

PT: Page Table 

PT: Payload Type 


PTD: Parallel Transfer Disk 

PTE: Page Table Entry 

PTE: Path Terminating Equipment 

PTF: Print To Fax 

Fax driver for Lotus Domino Fax Server (Software) 

PTF: Program Temporary Fix 

(IBM) 

PTI: Packet Type Identifier 

PTML: Proxicom Template Markup Language 

PtMP: Point-To-MultiPoint 


PTOCA: Presentation Text Object Content 

Architecture 

PtP: Point-To-Point 


PTR: Point-in-Time Repair 

Backup disaster recovery procedure (Software) 

PTT: Postal Telegraph and Telephone 


PTT: Push To Talk 

Functionality in the group communication terminal device. 

You have to push PTT-button to get the permission for 

transmission (Communication) 

PTW: Primary Translation Word 

PTY: Pseudo-Terminal driver 

PU: Physical Unit 

(Hardware) 

PUB: PUBlic 

PUC: Peripheral Unit Controller 

PUC: Public Utilities Commission 

PUCP: Physical Unit Control Point 

PUN: Physical Unit Number 

PUP: Parc Universal Packet 

Protocol 


QA 

PURL: Persistent Uniform Resource Locator 

Instead of pointing directly to the location of an Internet 

resource, a PURL points to an intermediate resolution 

service. The PURL resolution service associates the PURL 

with the actual URL and returns that URL to the client. 

PUS: Processor Upgrade Socket 

PUSHA: PUSH All registers 

PUSHF: PUSH Flags 

PV: Physical Volume 

PVA: Personal Virtual Assistant 

PVC: Permanent Virtual Circuit 

Dedicated end-to-end virtual circuit that is set up 

permanently in an ATM network (Network) 

PVC: PolyVinyl Chloride 

PVM: Parallel Virtual Machine 

PVM: Pass-through Virtual Machine 

(IBM) 

PVM: Perc Virtual Machine 


PVP: Packet Video Protocol 

PVP: Parallel Vector Processing 

PVP: Personal Video Player 

(Hardware) 

PVR: Personal Video Recorder 

Stores video on a hard disk instead of a video tape 

(Hardware) 

PVS: Parallel Visualization Server 

PW: PassWord 

PWB: Printed Wire Board 

PWB: Programmer's WorkBench 

(Microsoft) 

PWD: Print Working Directory 

PWM: Pulse-Width Modulation 


PWP: Personal Web Pages 

(Microsoft) 

PWPN: PowWow for Private Networks 

Instant messaging program (Software) 

PWR: PoWeR 

PWS: Peer Web Services 


PWS: Personal Web Server 

(Network) 

PWS: Programmable WorkStation 

(Hardware) 

PWSCS: Programmable WorkStation 

Communication Services 

(IBM) 

PX: Primary indeX 

(Borland) 

PXE: Preboot eXecution Environment 

Provides a way for a system to initiate a network 

connection to various servers prior to loading an Operating 

System (OS) 

Q 

Q&A: Questions & Answers 

Q/A: Questions and Answers 

QA: Quality Assurance 

Page 121 of 167 

P 

Q

QAB 

QAB: Quick As a Bunny 

Similar to ASAP but cuter (Net lingo) 

QAM: Quadrature Amplitude Modulation 


QAS: Quasi-Associated Signaling 

QAS: Quick Arbitration and Selection 

(Hardware) 

QBE: Query By Example 

(Databases) 

QBF: Query by Form 

QBIC: Query By Image Content 

(Databases) 

QC: Quality Control 

QC: Quantum Coprocessor 

(Hardware) 

QC: Queued Component 

QCDP: Quality Color Dithering Modus 

QCIF: Quarter Common source Intermediate 

Format 

A video format in which frames are 180 pixels wide and 

144 pixels high (1/4 the size of the CIF format). Each pixel 

has its own luminance value; however, blocks of 4 pixels 

share chrominance values 

QD: Querty/Dvorak 

Keyboard layout 

QDA: Qualitative Data Analysis 

QDF: Quicken Data File 

File name extension (Software) (Intuit) 

QDI: Quicken DIctionary 

File name extension (Software) (Intuit) 

QDL: Quadri Data Layer 

QDOS: Quick and Dirty Operating System 

MS-DOS ancestor (Operating systems) 

QDR: Quad Data-Rate 

(Hardware) 

QDT: Quicken DaTa 

File name extension (Intuit) 

QEA: Queued Event Architecture 

QEMM: Quarterdeck Expanded Memory 

Manager 

(Operating systems) (Quarterdeck) 

QFA: Quick File Access 

QFE: Quick Fix Engineering 

(Software) 

QFP: Quad Flat Pack 

QFP: Quicken Financial Planner 

(Software) (Intuit) 

QIC: Quality Information using Cycle time 

QIC: Quarter-Inch Cartridge 

An industry-standard 1/4-inch magnetic tape cartridge 

used for data backup or storage (Hardware) 

QIF: Quicken Interchange Format 

File format for financial data (Software) 

QKD: Quantum Key Distribution 

QL: Quantum Leap 

Name for an unsuccessful mid 1980's Sincliar 

Microcomputer based on the Motorola 68008 

microprocessor. 

QLI: Query Language Interpreter 


QLLC: Qualified Logical Link Control 

QMF: Query Management Facility 

(IBM) 

QMT: Quicken Memorized lisT 


QMU: Quarterly Maintenance Update 

(IBM) 

QNX: Quicken iNdeXes 


R.A.V.E. 

QoS: Quality Of Service 

QoS can be characterized by several basic performance 

criteria, including availability, response time and 

throughput, lost calls or transmissions due to network 

congestion, connection set-up time, and speed of fault 

detection and correction (Network) 

QoSR: Qualiy Of Service Raouting 

A dynamic routing protocol that has expanded its pathselection 

criteria to include QoS parameters such as 

available bandwidth, link and end-to-end path utilization, 

node resources consumption, delay and latency, and 

induced jitter (Network) 

QP: QuickPropagation 

QPA: Quality Of Service Routing 


QPG: Quantum Phase Gate 

QPL: Qualified Product List 

QPM: Quantitative Process Management 

(Software) 

QPSK: Quadrature Phase-Shift Keying 


QRSL: Quad Rambus Signaling Level 

(Hardware) 

QSA: Qt Script for Applications 

Multiplatform application-scripting toolkit based on Qt. 

See http://www.trolltech.com/ (Software) 

QSAM: Queued Sequential Access Method 

QT: QuickTime 

File Format for movies (Apple) 

QTAM: Queued Teleprocessing Access Method 

(IBM) 

QTC: QuickTime Conferencing 

(Apple) 

QTD: Quarter To Date 


QUARC: QUarterdeck's Antivirus Research 

Center 

(Quarterdeck) 

QUEL: QUEry Language 

QUT: Queensland University of Technology 

An Australian university (Brisbane, Queensland) 


QVGA: Quarter Video Graphic Array 

Video specification for a resolution of 320 X 240 pixels 

used by Pocket PCs (Hardware) 

QXGA: Quad eXtended Graphics Array 


(Hardware) 

R 

R&D: Research & Development 

R.A.V.E.: Real Animated Vector Effects 

Page 122 of 167 

Q 

R

R/O 

R/O: Read Only 

R/T: Receive/Transmit 

R/W: Read/Write 

RA: Real Audio 


RA: Remote Assistance 


RA: Resource Adapter 

(Software) 

RA: Return Authorization 

RAB: Raid Advisory Board 

Industry organization of manufacturers and users of disk 

systems and related products whose mission is to educate 

users regarding all aspects of storage technology, and in 

particular, RAID technology. (Organizations) 

RAC: Rambus Asic Cell 

(Hardware) 

RAC: Real Application Cluster 


RACF: Resource Access Control Facility 

Provides improved security for an installation's data. RACF 

protects your vital system resources and controls what 

users can do on the operating system (Security) (IBM) 

RACMan: Remote Automation Connection 

MANager 

(Network) 

RAD: Rapid Access Disk 

RAD: Rapid Application Development 

(Software) 

RADAR: RAdio Detection And Ranging 

RADAR: Rights, Availabilities, Distribution 

Analysis and Reporting 

RADB: Routing Arbiter Data Base 

RADIUS: Remote Authentication Dial-In User 

Service 

RADSL: Rate Adaptive Digital Subscriber Line 


RAG: Row Address Generator 

RAI: Rapid Application Integration 

(Software) 

RAID: Redundant Array of Inexpensive (or 

Independent) Disks 

(Hardware) 

RAIS: Redundant Arrays of Inexpensive 

Systems 

RAIT: Redundant Array of Independent Tapes 

(Hardware) 

RALU: Register-equipped Arithmetic Logic 

Unit 

(Hardware) 

RAM: Random Access Memory 

(Hardware) 

RAM: Real Audio Metafile 


RAM: Rioport Audio Manager 

RAMAC: Raid Architecture with Multi-level 

Adaptive Cache 


RAMDAC: Random Access Memory Digital to 

Analog Converter 

Chip on a video board that generates the analog video 

signals (Hardware) 

RAMP: Remote Access Maintenance Protocol 

(Network) 

RAMP: Risk Analysis and Management 

Program 

RAN: Radio Access Network 

RAND: RANDom 

RAND: Rural Area Network Design 

RAP: Rapid Application Prototyping 

RAPI: Remote access Application 



RAPI: Rsvp Application Programming 

Interface 

An RSVP-specific API that enables applications to 

interface explicitly with an RSVP process (Network) 

RAPS: Real Application on Parallel Systems 

RAR: Resource Adapters aRchive 

RARE: Reseaux Associés pour la Recherche 

Européenne 

The European Association of Research Networks. Now 

called TERENA (Network) 

RARP: Reverse Address Resolution Protocol 

(Network) 

RAS: Random Access Storage 

RAS: Reader Admission System 

RAS: Reliability, Availability, Serviceability 

RAS: Remote Access Service 

(Network) 

RAS: Row-Address Strobe 

RASAPI: Remote Access Service Application 


(Microsoft) 

RAT: Register Alias Table 

RAT: Remote Access Trojan 

(Security) 

RATP: Reliable Asynchronous Transfer 

Protocol 

RAVE: Rendering Acceleration Virtual Engine 

(Apple) 

RAW: Reconfigurable Architecture 

Workstation 

RAWT: Remote Abstract Windows Toolkit 


RB: Right Button 

RBA: Relative Byte Address 

RBBS: Remote Bulletin Board System 

RBCS: Remote Bar Code System 

RBF: Random Block Filemanager 

RBH: Remote Bridge Hub 

RBL: Realtime Blackhole List 

System for creating intentional network outages 

("blackholes") for the purpose of limiting the transport of 

known-to-be-unwanted mass e-mail. See http://mailabuse.org/rbl/ 

RBL 

Page 123 of 167 

R

RBOC 

RBOC: Regional Bell Operating Company 

The local telephone company in each of the seven U.S. 

regions. (Communication) 

RC: Release Candidate 

Pre-release version of a program (Software) 

RC: Resource Compiler 

(Software) 

RCA: Radio Corporation of America 


RCA: Readers' Choice Award 

RCC: Remote Cluster Controller 

RCF: Reader's Comment Form 

RCI: Rectal Cranial Inversion 

When someone has things a** backward (Net lingo) 

RCL: Rotate Carry Left 

RCP: Remote Control Panel 

RCP: Remote CoPy 

RCP: Restore Cursor Position 

RCP: Rich Client Platform 

Minimal set of plug-ins needed to build a rich client 

application. See also 

http://wiki.eclipse.org/index.php/Rich_Client_Platform 

(Software) 

RCR: Rotate Carry Right 

RCS: Records Communications System 

RCS: Reference Color Space 

(Software) 

RCS: Revision Control System 

Manages multiple revisions of files by automating the 

storage, retrieval, logging, identification, and merging of 

revisions. It's particularly useful for text that is revised 

frequently, such as programs, documentation, graphics, 

papers, and form letters (Software) (GNU) 

RCSS: Records Communications Switching 

System 

RCTC: Rewritable Consumer Time Code 

RCW: Runtime Callable Wrapper 


RD: Receive Data 

(Hardware) 

RD: Recursive Design 

RD: Remote Desktop 


RD: Remove Directory 

RD: Rendezvous Point 

Unlike source trees that have their root at the source, 

shared trees use a single common root placed at some 

chosen point in the network. This shared root is called a RP 

(Network) 

RDA: Remote Data Access 

RDAO: Remote Data Access Object 


RDB: Receive Data Buffer 

RDB: Relational DataBase 

(Databases) 

RDB: Rigid Disk Block 

RDBMS: Relational DataBase Management 

System 

(Software) 


RDBMS-MIB: Relational DataBase 

Management System - Management 

Information Base 

RDC: Remote Data Control 

(Microsoft) 

RDC: Ricoh Digital Camera 

(Hardware) (Ricoh) 

RDD: Replicable Database Driver 

RDX 

RDDL: Resource Directory Description 

Language 

XML-based language for describing a resource directory. A 

resource directory provides a text description of some 

class of resources and of other resources related to that 

class. It also contains a directory of links to these related 

resources (Software) 

RDE: Receive Data Enable 

(Hardware) 

RDES: Remote Data Entry System 

RDF: Resource Definition Format 

(Software) 

RDF: Resource Description Framework 

(Netscape) 

RDI: Remote Defect Indicator 

RDIMM: Registered Dual In-line Memory 

Module 

(Hardware) 

RDL: Remote Digital Loopback 

RDL: Report Definition Language 

XML-based industry standard used to define reports 

(Software) 

RD-LAP: Radio Data Link Access Protocol 

RDM: Reliably Delivered Message 

RDM: Remote Data Module 

RDM: Remote Deployment Manager 

RDM: Remote Diagnostic Manager 

(Operating systems) (Acer) 

RDM: Resource Description Message 

RDN: Relative Distinguished Name 


RDO: Remote Data Object 

RDOS: Real-time Disk Operating System 


RDP: Rapid Deployment Pack 


RDP: Reliable Datagram Protocol 

RDP: Remote Display (or Desktop) Protocol 


RDR: Remote Data Recovery 

RDRAM: Rambus Dynamic Random Access 

Memory 

(Hardware) 

RDS: Radio Digital System 

RDS: Remote Data Service 

(Databases) 

RDSR: Receiver Data Service Request 

RDT: Radio Digital Terminal 

RDTO: Receive Data Transfer Offset 

(IBM) 

RDX: Realistic Display miXer 

Page 124 of 167 

R

RE/TM 

RE/TM: Rare Earth/Transition Metal 

REC: RECorder 


RECFM: RECord ForMat 


RED: Random Early Detection 

A congestion-avoidance algorithm developed in the early 

1990s built on the base-level TCP behavior of 

automatically slowing transmissions when packet loss is 

detected (Network) 

REF: REFerence 

REG: REGister 

REGAL: Rigid Epoxy Glass Acrylic Laminate 

REGEX: REGular EXpression 

REGIS: REmote Graphics Instruction Set 

ReLaTe: REmote LAnguage TEaching 

RELAX: REgular LAnguage description for Xml 

Uses XML syntax to express the structure relationships 

that are present in a DTD, and adds the XML Datatype 

Schema mechanisms, as well 

RELML: Real Estate Listing Markup Language 

RELSECT: RELative SECTor 

REM: REMark 

REM: REMote 

REM: Remote Equipment Module 

REM: Ring Error Monitor 

REN: REName 

REN: Ringer Equivalence Number 

REP: REPeat 

REPE: REPeat while Equal 

REPNE: REPeat while Not Equal 

REPNZ: REPeat while Not Zero 

REPZ: REPeat while Zero 

REQ: REQuest 

RES: Remote Execution Service 

RES: RESet 

RES: RESolution 

RES: RESource 


RES: Robots Exclusion Standard 

Standard that allows web site administrators to indicate to 

visiting robots which parts of their site should not be 

visited by the robot 

RET: Resolution Enhancement Technology 

(HP) 

RET: RETurn 

RETR: RETRieve 

REX: Relocatable EXecutable 

REXEC: Remote EXECution 

REXX: Restructured EXtended eXecutor 

Programming language (IBM) 

RF: Radio Frequency 


RFA: Resident Flash Array 

(Hardware) 

RFC: Remote Function Call 

(Software) 


RFC: Request For Comments 

RFD: Request for Discussion 

RFE: Request for Enhancement 

RFI: Radio Frequency Interference 

RFI: Request For Information 

RFID: Radio Frequency IDentification 

RFP: Request For Proposal 

RFQ: Request For Quotation 

RFQ: Request For Quote 

RFS: Remote File Sharing 

RFS: Remote File System 


RFT: Revisable Form Text 

RFU: Reserved for Future Use 

RG: Residential Gateway 

(Network) 

RIDE 

RGB: Red Green Blue 

The color systems obtain their colors through a direct 

combination of red, green, and blue components. The range 

of colors that can be displayed depends on the number of 

bits that have been assigned to each pixel (Hardware) 

RGC: Routing Group Connector 

(Microsoft) 

RGMII: Reduced Gigabit Media Independent 

Interface 

(Network) 

RGMP: Router-port Group Management 

Protocol 

IP multicast constraining mechanism for router-only 

network segments. RGMP must be enabled on the routers 

and on the Layer 2 switches (Network) 

RH: Request (or Response) Header 

RHCE: Red Hat Certified Engineer 

Mid to advanced level certification for IT professionals who 

are able to install and configure Red Hat Linux, understand 

limitations of hardware and configure basic networking and 

file systems 

RHCT: Red Hat Certified Technician 

RHD: Removable Hard Drive 

(Hardware) 

RHEL: Red Hat Enterprise Linux 


RI: Reference Implementation 

(Software) 

RI: Referential Integrity 

(Databases) 

RI: Ring Indicator 

(Hardware) 

RIA: Rich Internet Application 

Evolution of the web development and deployment model 

(Software) 

RIAA: Recording Industry Association of 

America 


RID: Record IDentifier 

RID: Relative Identifier 


RIDE: Rapid Integrated Drive Electronics 

(Hardware) 

Page 125 of 167 

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RIFF 

RIFF: Resource Interchange File Format 


RIG: Related Interest Group 

RIM: Real-time Interaction Management 

RIM: Remote Installation and Maintenance 

(Microsoft) 

RIM: Research In Motion 

(Hardware) 

RIME: Relaynet International Message 

Exchange 

RIMM: Rambus Inline Memory Module 

(Hardware) 

RIP: Raster-Image Processor 

RIP: Remote Imaging Protocol 

RIP: Routing Information Protocol 

An Interior Gateway Protocol (IGP) with Berkeley UNIX 

(Network) 

RIPE: Reseaux Internet Protocol Européens 

The European continental TCP/IP network operated by 

EUnet (Network) 

RIPEM: Riordan's Internet Privacy Enhanced 

Mail 

RIPES: Reconnaissance Imagery Processing 

& Exploitation System 

RIPL: Remote Initial Program Load 

RIPS: Raster Image Processing System 

RIPv2: Routing Information Protocol Version 

2 

Extension of the Routing Information Protocol (RIP). Its 

purpose is to expand the amount of useful information in 

the RIP packets and to add security elements (Network) 

RIR: Regional Internet Registry 

(Network) 

RIS: Remote Intallation Service 


RISC: Reduced Instruction Set Computer 

A computer architecture that uses fewer and less complex 

instructions than complex instruction set computing 

(CISC). Some complex instructions performed by hardware 

in CISC computers are done by software in RISC 

computers (Hardware) 

RISLU: Remote Integrated Services Line Unit 

RIT: Raw Input Thread 

(Microsoft) 

RITA: Reliable Internetwork Troubleshooting 

Agent 

(Network) 

RJ: Registered Jack 

Connector for phone and network cables (Hardware) 

RJE: Remote Job Entry 

(Network) 

RK: Resource Kit 


RKRM: Rom Kernel Reference Manual 

RLD: Received Line Detect 

RLE: Run Length Encoding 

RLL: Run Length Limited 

Magnetic supports read/write technology (Hardware) 

RLN: Remote Lan Node 

RLP: Radio Link Protocol 


RLP: Resource Location Protocol 

RLSD: Received Line Signal Detected 

RLT: Remote Line Test 

RM: Relay Module 

(Hardware) 

RM: Reset Mode 

RM: Resource Management 

RMA: Return Material Authorization 

RMB: Right Mouse Button 

RMC: Raptor Management Console 


RMD: Required Markup Declaration 

RMDIR: ReMove DIRectory 

RMI: Remote Messaging Interface 

RMI: Remote Method Invocation 

(Software) 

RMID: Resource Manager IDentifier 

RMM: Ring Management Module 

RMON: Remote MONitoring 

RMON: Resident MONitor 

RMP: Remote Maintenance Processor 

(IBM) 

RMS: Reason Maintenance System 

RMS: Record Management System 

(Operating systems) (DEC) 

RMS: Root Mean Square 

RMSE: Root Mean Square Error 

RMT: Raw Magnetic Tape 

RMT: Ring ManagemenT 

RMTP: Reliable Message Transport Protocol 

RMW: Read, Modify, Write 

RN: Read News 

RNA: Remote Network Access 

(Microsoft) 

RNC: Radio Network Controller 

(Hardware) 

RND: RaNDom 

RNG: Random Number Generator 

RNI: Raw Native Interface 

Native interface proposed by Microsoft (Software) 

(Microsoft) 

RNOC: Regional Network Operations Center 

RNP: Regional Network Provider 

RNR: Receive Not Ready 

RNS: Run from Network Server 

(Software) 

RNUI: Remote Network User Identification 

ROB: ReOrder Buffer 

(Intel) 

ROC: Reconstruction Of Color 


ROD: Rewritable Optical Disk 

ROD: Rewriteable Optical Disk 

(Hardware) 

ROD 

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R

ROFL 

ROFL: Rolling On Floor Laughing 

(Net lingo) 

ROFLKAS: Rolling On Floor Laughing, Kicking 

And Screaming 

(Net lingo) 

ROFLMAO: Rolling On Floor Laughing My A** 

Off 

(Net lingo) 

ROFLMAOWTIME: Rolling On Floor Laughing 

My A** Off With Tears In My Eyes 

(Net lingo) 

ROFLMFAO: Rolling On Floor Laughing My 

F***ing A** Off 

(Net lingo) 

ROFLMHO: Rolling On Floor Laughing My Head 

Off 

(Net lingo) 

ROFLOL: Rolling On The Floor Laughing Out 

Loud 

(Net lingo) 

ROFLOLBAG: Rolling On The Floor Laughing 

Out Loud Busting A Gut 

(Net lingo) 

ROI: Return On Investment 

ROL: ROtate Left 

ROLAP: Relational OnLine Analytical 

Processing 

ROM: Read Only Memory 

(Hardware) 

ROM: Report Object Model 

Object model at the base of the Business Intelligence and 

Reporting Tools (BIRT) (Software) 

ROMB: Raid On MotherBoard 

(Hardware) 

ROOM: Real-time Object-Oriented Modeling 

ROP: Raster OPeration 

The logical operations (called ANDs, ORs, NORs, and so 

on) performed on portions of the bit planes—called bitmaps 

or pixmaps—in the frame buffer. These operations perform 

fundamental movements and transfers of pixel data 

ROP: Remote OPeration 

ROP: Risc OPeration 

ROPE: Remote Object Proxy Engine 

ROPES: Rapid Object-oriented Process for 

Embedded Systems 


ROR: ROtate Right 

ROS: Read-Only Storage 

(IBM) 

ROS: Return on Service 

ROSCOE: Remote Operating System 

Conversational Online Environment 

ROSE: Remote Operations Service Element 

A lightweight RPC protocol used in ISO/OSI message 

handling, directory, and network management application 

protocols 

ROT: Rule Of Thumb 

ROT: Running Object Table 

(Software) 

ROTFL: Rolling On The Floor Laughing 

(Net lingo) 


ROTFLMAO: Rolling On The Floor Laughing My 

A** Off 

(Net lingo) 

ROTFLMAOASTC: Rolling On The Floor 

Laughing My A** Off And Scaring The Cat 

(Net lingo) 

ROTFLMAOWTIME: Rolling On The Floor 

Laughing My A** Off With Tears In My Eyes 

(Net lingo) 

ROTFLPMP: Rolling On The Floor Laughing, 

Peeing My Pants 

(Net lingo) 

ROV: Real Option Valuation 

ROX: Risc Os on X 

RISC-OS desktop environment clone for Unix/X-window 


RP: Relay Party 

RPC: Remote Procedure Call 

Interprocess communication mechanism (Software) 

RPCL: Remote Procedure Call Language 

RPCS: Refined Printing Command Stream 

(Hardware) (Ricoh) 

RPF: Reverse Path Forwarding 

Enables routers to correctly forward multicast traffic down 

the distribution tree. It makes use of the existing unicast 

routing table to determine the upstream and downstream 

neighbors (Network) 

RPG: Report Program Generator 


RPL: Remote Program Link 

RPL: Remote Program Load 

Bootable network device protocol, developed and used 

mostly by IBM 

RPL: Requested Privilege Level 

RPL: Resident Programming Language 

RPM: Radio Packet Modem 

RPM: Red-hat Package Manager 


RPM: Remote Printer Management 


rpm: Rounds (or Revolutions) Per Minute 

(Hardware) 

RPM: Route Processor Module 


RPN: Real Page Number 

RPN: Reverse Polish Notation 

RPPROM: ReProgrammable Programmable 

Read Only Memory 

RPQ: Request for Price Quotation 

RPR: Relative Performance Rating 

RPSL: Routing Policy Specification Language 

RPT: RePeaT 

RQBE: Relational Query By Example 

(Microsoft) 

RQN: Real-Quick Newsletter 

FreeBSD newsletter (Operating systems) 

RR: Radio Resource 

RR: Real Reality 

RR 

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R

RR 

RR: Register to Register 

The class of CPU instructions (and assembler codes that 

go with them) relating to only registers, not main memory 

(e.g." Add the contents of register A with register B, 

putting the result in register A") (Hardware) 

RR: Resource Record 

(Network) 

RR: Round Robin 


RRAS: Routing Remote Access Service 

(Network) 

RRCM: Reservation Request Control 

Mechanism 

RRDF: Remote Recovery Data Facility 

RRDS: Relative Record Data Set 

RRIP: Rock Ridge Interchange Protocol 

RRN: Relative Record Number 

RRP: Recommended Retail Price 

RRSHB: Resource Representation Soap 

Header Block 

RS: Radio Shack 

RS: Recommended Standard 

RS: Record Separator 

RS: Reed-Solomon 

Reed-Solomon codes are block-based error correcting 

codes with a wide range of applications in digital 

communications and storage. Reed-Solomon codes are 

used to correct errors in many systems (Communication) 

RS: Register Select 

(Hardware) 

RS: Registry Service 

RS: Remote Scripting 

Allows code in a client page to call functions in an ASP 

page running on the server (Microsoft) 

RSA: Random Scheduling Algorithm 

RSA: Remote Supervisor Adapter 

PCI adapter which simplifies remote system management 

by providing around-the-clock remote access to the 

server. The RSA monitors the server and sends out alerts 

to designated recipients via LAN, pager, email or SNMP if a 

failure is detected (Hardware) (IBM) 

RSA: Rivest-Shamir-Adleman 

RSAC: Recreational Software Advisory Council 


RSACI: Recreational Software Advisory 

Council on the Internet 


RSCS: Remote Spooling Communications 

System 

RSD: Route Server Daemon 

RSH: Remote SHell 

RSI: Repetitive Stress Injury 

RSIP: Realm Specific Internet Protocol 

Like NAT, RSIP translates between public and private IP 

addresses. But instead of requiring a boundary router to 

translate, RSIP uses a simple protocol between a user's 

desktop PC and a boundary router to perform preparatory 

signaling (Network) 

RSL: Request-and-Status Link 

RSL: Resilient Server Link 


RSM: Relational Storage Manager 


RSM: Remote Session Manager 

RSM: Remote Storage Management 


RSM: Removable Storage Manager 


RSM: Route Switch Module 

Basically a router on a card in the switch for routing 

between Virtual Local Area Networks (Network) 

RSN: Real Soon Now 

(Net lingo) 

RSoP: Resultant Set Of Policies 


RSP: Required Space Character 

RS-PC: Reed Solomon Product Code 

RSPX: Remote Sequenced Packet eXchange 

RTF 

RSS: Really Simple Syndication 

Is an XML-based, universal way for developers to describe 

their sites and to make their content available to others 

(for example, for syndication) 

RSS: Relay Spam Stopper 

Queryable DNS-based database of spam-relaying mail 

servers. See http://work-rss.mail-abuse.org/rss/ 

RSS: Rich Site Summary 

Synonym of Really Simple Syndication 

RST: ReSeT 

RST: ReSTart 

RSTS: Resource Sharing Time Sharing 

(DEC) 

RSTS/E: Resource System Time 

Sharing/Enhanced 

RSU: Recommended Service Upgrade 

IBM-recommended PTFs (Program Temporary Fix) 

supplied as part of monthly z/OS service support 


RSVP: Resource reSerVation Protocol 

An IETF standard which allows an end device and a 

network to negotiate specific QoS characteristics 

(Network) 

RSX: Realistic Sound eXperience 

RSX: Realtime resource Sharing eXecutive 

RT: Real-Time 

RT: Risc Technology 

RT: Run Time 

RT/DSS: Real-Time/Decision Support Service 

RTAM: Remote Terminal Access Method 

RTB: Rich Text Box 


RTC: Real-Time Clock 

(Hardware) 

RTC: Rich Thin Client 

All about technologies for thin client with rich functionality 

and widget set, as opposed to Html clients (Software) 

RTCP: Real-Time Control Protocol 

RTDM: Real-Time Data Migration 

RTEL: Reverse TELnet 

RTF: Real Time Fifo 

Page 128 of 167 

R

RTF 

RTF: Rich Text Format 

File format for documents 

RTFA: Read The F***ing Article 

Used on news sites when someone makes an ill-informed 

comment/reply (Net lingo) 

RTFM: Read The F***ing Manual 

FAQ by beginner (Net lingo) 

RTFM: Realtime Traffic Flow Measurement 

(Network) 

RTG: Real Time Geometry 

RTI: ReTurn from Interrupt 

RTL: Raster Transfer Language 

RTL: Register Transfer Language 

RTL: Resistor Transistor Logic 

RTL: Right-To-Left 

RTL: Run Time Library 

RTM: Release To Manufacturing 

RTM: Response Time Monitor 

RTM: RunTime Manager 

(Borland) 

RTMP: Routing Table Maintenance Protocol 

RTN: Recursive Transition Network 

(Network) 

RTN: Reuters Transaction Network 

RTOS: Real Time Operating System 


RTP: Rapid Transport Protocol 

RTP: Real-time Transport Protocol 


RTR: Real Time Replicator 

(Network) 

RTS: Real-Time Strategy 

Type of game 

RTS: Remote Takeover System 

RTS: Request To Send 


RTS: Run Time System 

RTSE: Reliable Transfer Service Element 

A lightweight ISO/OSI application service used above 

X.25 networks to handshake application PDUs across the 

session service and TP0 (Network) 

RTSJ: Real-Time Specification for Java 

(Software) 

RTSP: Real Time Streaming Protocol 

Application-level protocol for control over the delivery of 

data with real-time properties (Network) 

RTT: Real-Time Technology 

Refers to a technology that allows a user to receive data 

during the actual time that a physical process occurs, 

known as real time. Real time is measured in milliseconds 

or microseconds 

RTTI: Run-Time Type Information 

(Software) 

RTTY: Radio TeleTYpewriter 

RTU: Real Time Unix 

RTU: Right To Use 

The Sun software licensing, usually included in the price of 

the software (Sun) 

RTV: Real-Time Video 


RTX: Run Time eXtension 

RU: Request (or Response) Unit 

RUN: Responsible Use of the Network 

RUN: Rewind/UNload 

(IBM) 

RUP: Rational Unified Process 

(Software) 

S1AS 

RUS: Recipient Update Service 

Microsoft Exchange Mail Server Service that generates 

and updates email addresses seen in the Global Address 

List (GAL) (Software) (Microsoft) 

RUW: Remote Unit of Work 

(IBM) 

RVA: Ramac Virtual Array 

RVA: Relative Virtual Address 

RVA: RendezVous Agent 

(Network) 

RVD: RendezVous Daemon 

(Network) 

RVI: ReVerse Interrupt 

RVRAD: RendezVous Relay Agent Deamon 

(Network) 

RVRD: RendezVous Routing Daemon 

(Network) 

RVSA: Remote Variant Selection Algorithm 

RW: Read Write 

Device capability to read and write its media (Hardware) 

RWM: Read-Write Memory 

RWP: Remote Write Protocol 

(Network) 

RWU: Remote Wake Up 

(Network) 

RX: Receive 

RXD: Receive Data 

(Hardware) 

RZ: Return to Zero 

Return to Zero 

FTPS: File Transfer Protocol over Ssl 

S.u.S.E.: Software Und SystemEntwicklung 

S/H: Sample/Hold 

S/MIME: Secure Multipurpose Internet Mail 

Extensions 

An e-mail security standard that makes use of public key 

encryption (Security) 

S/N: Signal to Noise 

S 

S/PDIF: Sony/Philips Digital Interface 

Format 

A standard for digital connection of consumer audio devices 

S/STP: Screened Shielded Twisted Pair 

(Hardware) 

S/TK: Sectors per TracK 

S/UTP: Screened Unshielded Twisted Pair 

(Hardware) 

S1AS: Sun One Application Server 

(Sun) 

Page 129 of 167 

R 

S

S2S 

S2S: Server To Server 

(Software) 

SA: Security Association 

SA: Selective Availability 

SA: Service Agent 

SA: Software Assurance 

Licensing scheme (Microsoft) 

SA: Source Address 

SA: Structured Analysis 

SAA: Service Assurance Agent 


SAA: Systems Application Architecture 

SAAJ: Soap with Attachments Api for Java 

Enables developers to produce and consume messages 

conforming to the SOAP 1.1 specification and SOAP with 

Attachments note (Software) (Sun) 

SAAL: Signaling Atm Adaptation Layer 


SABM: Set Asynchronous Balanced Mode 

(Network) 

SABME: Set Asynchronous Balanced Mode 

Extended 

in ISDN, is a TEI assignment (LAPD negotiation) (Network) 

SABRE: Semi-Automatic Business Research 

Environment 

SAC: Service Access Control 

The Service Access Facility (SAF) master program 


SAC: Simple Api for Css 

SAC: Single Attachment Concentrator 

SACD: Super Audio Compact Disk 

(Hardware) 

SACK: Selective ACKnowledge 


SACL: System Access Control List 

An ACL that controls the generation of audit messages for 

attempts to access a securable object. The ability to get or 

set an object's SACL is controlled by a privilege typically 

held only by system administrators (Operating systems) 

SAD: Security Association Database 

In each IPsec implementation there is a nominal Security 

Association Database, in which each entry defines the 

parameters associated with one Security Association 

(Network) 

SAD: Streams Administrative Driver 

A driver that provides an interface to the autopush 

mechanism 

SADL: Structural Architecture Description 

Language 

Intended for the definition of software architecture 

hierarchies that are to be analyzed formally (Software) 

SADT: Structured Analysis and Design 

Techniques 

SAF: Security Authentication Facility 

SAF: Service Access Facility 

A tool provided with the SunOS 5.3 operating system that 

controls access to local and network system services, 

such as printers, modems, and terminals (Operating 

systems) (Sun) 

SAFE: Security And Freedom through 

Encryption 

SAG: Sql Access Group 


SAIL: Stanford Artificial Intelligence 

Laboratory 

SAINT: Security Administrator's Integrated 

Network Tool 

SAINT: Symbolic Automatic INTegrator 

SAL: Shift Arithmetic Left 

SAL: Spatial Aggregation Language 

SALT: Speech Application Language Tags 

Lightweight set of extensions to existing markup 

languages, in particular HTML and XHTML that enable 

multimodal and telephony access to information, 

applications and Web services from PCs, telephones, 

tablet PCs and wireless personal digital assistants 

SAM: Scsi-3 Architecture Model 

SAM: Security Accounts Manager 


SAM: Sequential Access Method 

SAM: Serial Access Memory 

SAM: Single Application Mode 

(Microsoft) 

SAM: Storage Area Management 

SAM: System Administration Module 


SAMI: Synchronized Accessible Media 

Interchange 

SAML: Security Assertion Markup Language 

SAN: Storage Area Network 

SAN: System Area Network 

(Network) 

SAPI 

SANE: Standard Apple Numeric Environment 

(Apple) 

SANE: System Administration and NEtworking 

SANITI: Storage Area Network Integrated 

Technology Initiative 

SANS: System Administration, Networking 

and Security institute 

Organization that develops, maintains, and makes 

available at no cost, the largest collection of research 

documents about various aspects of information security, 

and it operates the Internet's early warning system - 

Internet Storm Center. (Organizations) 

SAO: Sector-At-Once 


SAP: Second Audio Program 

SAP: Service Access Point 

The point at which the services of an OSI layer are made 

available to the next higher layer. The SAP is named 

according to the layer providing the services 

SAP: Service Advertising Protocol 

(Network) 

SAP: Session Announcement Protocol 


SAP: Symbolic Assembly Program 

SAP: Systeme, Anwendungen, Produkte in 

der datenverarbeitung 

A german company that produces the leading suite of 

client-server business software ("Systems, Applications 

and Products in data processing"). 

SAPI: Speech Application Programming 

Interface 


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S

SAPR 

SAPR: Systems Assurance Product Review 

(IBM) 

SAR: Segmentation And Reassembly 

The process of breaking packets into ATM cells and 

reassembling cells back into data packets 


SAR: Shift Arithmetic Right 

SAR: Specific Absorbtion Rate 

SAR: Store Address Register 

SAR: Successive Approximation Register 

SAR: Synthetic Aperture Radar 

SARC: Symantec's Antivirus Research Center 

(Symantec) 

SARG: Search ARGument 


SAS: Sales Accounting System 

SAS: Secure Attention Sequence 

A key sequence that begins the process of logging on or 

off. The default sequence is CTRL+ALT+DEL (Operating 


SAS: Serial Attached Scsi 

Storage connection technology (Hardware) 

SAS: Server Attached Storage 

(Hardware) 

SAS: Single Attached Station 

SAS: Single Audio System 

SAS: Statistical Analysis System 

SASI: Sughart Associates System Interface 

Old hard disk bus (Hardware) 

SASL: Simple Authentication and Security 

Layer 

SAT: Sim Application Toolkit 

Normally terminal device commands the Subscriber 

Identity Module (SIM). Terminal device supporting SAT 

feature gives for SIM a feature to command terminal device 


SATA: Serial Advanced Technology 

Attachment 


SATAN: System Administration Tool for 

Analyzing Networks 

(Network) 

SATF: Shared Access Transport Facility 

SAV: Symantec AntiVirus 

Previously called Norton AntiVirus (NAV) (Software) 

(Symantec) 

SAVDM: Single Application Virtual Dos 

Machine 

SAX: Simple Api for Xml 

SB: Small Business 

SB: Sound Blaster 

(Creative Labs) 

SB: Sound Board 

SBA: Scene Balance Algorithm 

(Kodak) 

SBA: Service-Based Architecture 

SBAS: Satellite-Based Augmentation System 

SBB: Subtract With Borrow 

SBC: Scsi Block Commands 


SCAM 

SBC: Session Border Controller 

An appliance that simplifies handling of VoIP at the border 

of a network (Communication) 

SBC: Single-Board Computer 

(Hardware) 

SBCCS: Single Byte Command Code Set 

SBCM: Small Business Customer Manager 

(Microsoft) 

SBCR: Smart Business Card Reader 

(Hardware) 

SBCS: Single-Byte Character Set 

SBF: Sequential Block Filemanager 

SBF: Simple Boot Flag 


SBFM: Small Business Financial Manager 


SBI: Sound Blaster Instrument 

SBI: Speaker Box Interface 

An interface that integrates audio capability with ISDN on 

the Sun workstation (Hardware) (Sun) 

SBL: Softbridge Basic Language 

(Software) 

SBM: Small Business Manager 


SBM: Subnet Bandwidth Manager 

An IETF proposed standard for handling resource 

reservations on shared and switched IEEE 802-style localarea 

media (Network) 

SBN: Site Builder Network 

(Microsoft) 

SBP: Serial Bus Protocol 

(Hardware) 

SBR: Source BRowser 


SBS: Small Business Server 


SBS: Small Business Suite 

(Software) (Novell) 

SBS: Smart Battery Specification 

(Hardware) 

SC: Servlet Container 

(Software) 

SC: Smart Card 

(Hardware) 

SC: System Clock 

(Hardware) 

SC: System Controller 

(Hardware) 

SCA: Scalable Computing Architecture 

SCA: Shared Communications Area 

SCA: Single Connector Attachment 

(Hardware) 

SCADA: Supervisory Control And Data 

Acquisition 

Systems used in industry to monitor and control plant 

status and provide logging facilities 

SCAF: Service Control Agent Function 

SCAM: Scsi Configured AutoMatically 

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SCART 

SCART: Syndicat des Constructeurs 

d'Appareils Radiorécepteurs et Téléviseurs 

A socket standard used in Europe, named after its creator 

company, to connect many kinds of audiovisual 

equipment - sometimes also called the Peritel or Euro 

connector (Hardware) 

SCAS: SCAn String 

SCB: Subsystem Control Block 

(IBM) 

SCC: Scsi Controller Commands 

SCC: Serial Communications Controllers 

SCC: Serial Controller Chip 

SCC: Source Code Control 

(Software) 

SCC: Standards Council of Canada 


SCC: SuperComputer Center 

SCC: Sustainable Computing Consortium 


SCC: Synchronous Channel Check 

(IBM) 

SCCI: Source Code Control Interface 

(Software) 

SCCP: Signaling Connection Control Part 

SCCP: Simple Conference Control Protocol 

SCCS: Source Code Control System 

A software development tool for tracking file versions 

during a long, involved software development or 

documentation project (Software) 

SCD: Service Control Device 


SCD: Slowly Changing Dimension 

SCD: Sparc Compliance Definition 

A formal specification of the system hardware and software 

to be met by manufacturers of SPARC systems to ensure 

that those systems run compliant applications (Sun) 

SCD: Standard Color Display 

SCDMA: Synchronous Code-Division Multiple 

Access 

SCE: Security Configuration Editor 


SCE: Service Creation Environment 

SCE: Sniffer Certified Expert 

Certification for network professionals who can 

demonstrate an in-depth understanding of Sniffer 

Technologies software 

SCE: Structure Chart Editor 

SCEF: Service Creation Environment Function 

SCF: Sequential Character Filemanager 

SCF: Service Control Function 

SCF: System Control Facility 

SCI: Scalable Coherent Interface 

SCI: Serial Communication Interface 

(Hardware) 

SCI: Supply Chain Intelligence 

SCI: System Control Interrupt 

SCIL: Serial Control Interface Logic 

(Hardware) 


SCJP: Sun Certified Java Programmer 

(Sun) 

SCS 

SCL: Soap Contract Language 

Specification to describe the capabilities of Web services 

SCLM: Software Configuration and Library 

Management 

(IBM) 

SCM: Scalable Connection Management 

SCM: Service Control Manager 


SCM: Sniffer Certified Master 

SCM: Software Configuration Management 

(Software) 

SCM: Station Class Mark 

SCM: Supply Chain Management 

SCMS: Serial Copy Management System 

SCNA: Sun Certified Network Administrator 

(Sun) 

SCO: Santa Cruz Operation 

SCO: Second Class Object 

(Software) 

SCO: Synchronous Connection-Oriented 

SCOOPS: SCheme Object Oriented 

Programming System 

SCOPE: Simple COmmunications 

Programming Environment 

(Hayes) 

SCOS: Single Object Copy Store 


SCP: Save Cursor Position 

SCP: Secure CoPy 

SCP: Service Control Point 

SCP: Session Control Properties 

(Network) 

SCP: Sniffer Certified Professional 

SCP: Subsystem Control Port 

SCP: Sun Certified Programmer 

(Sun) 

SCP: Sunlink Communications Processor 

A printed circuit board that enables multi-vendor 

connection with either synchronous or asynchronous 

operation. The SCP works with SNA 3270 and X.25 

SunLink software products (Hardware) (Sun) 

SCP: System Control Program 

SCPC: Single Channel Per Carrier 

SCQL: Structured Card Query Language 

(Databases) 

SCR: SCRipt 


SCR: Silicon Controlled Rectifier 

SCR: Standard Context Routing 

SCR: Sustainable Cell Rate 

SCRAM: Software Configuration, Release And 

Management 

SCRN: SCReeN 

SCRS: Scalable Cluster of Risc Systems 

SCS: Sna Character String 

Page 132 of 167 

S

SCSA 

SCSA: Signal Computing System Architecture 

(Dialogic) 

SCSA: Sun Certified System Administrator 

(Sun) 

SCSA: Sun Common Scsi Architecture 

SCSE: Symantec Certified Security Engineer 

Certification is for IT professionals who focus on a single 

security segment and the implementation and in depth 

management of solutions in that segment (Symantec) 

SCSI: Small Computers System Interface 

An industry standard for connecting etherogeneous 

devices (disks, tapes, CD-ROMs, ...) to a workstation 

(Hardware) 

SCSIHQ: Small Computers System Interface 

Hardware Qualifier 

Hardware troubleshooting program (Operating systems) 

(Microsoft) 

SCSL: Sun's Community Source Licensing 

(Sun) 

SCSP: Server Cache Synchronization Protocol 

(Network) 

SCTP: Stream Control Transmission Protocol 

SCU: System Control Unit 

SCVP: Simple Certificate Validation Protocol 

SCW: Setup Computer Wizard 

(Microsoft) 

SCX: Specialized Communications eXchange 

SD: Secure Digital 

(Hardware) 

SD: Send Data 

SD: Serial Digital 


SD: Single Density 

(Hardware) 

SD: Structured Design 

SD: Super Density 

(Hardware) 

SD: Symbolic Debugger 

(Software) 

SDA: Screen Design Aid 

SDA: Self-Decrypting Archive 

(Security) 

SDA: Software Delivery Agent 

SDA: Software Disk Array 

SDA: Source Data Automation 

SDA: System Display Architecture 

(DEC) 

SDAI: Standard Data Access Interface 

SDAM: Single Dos Application Mode 

SDAR: Satellite Digital Audio Radio 

SDB: Symbolic DeBugger 

SDD: Software Description Database 

SDD: Subscriber Data Document 

SDD: Super Density Disk 

SDD: System Distribution Directory 

SDDI: Shielded Distributed Data Interface 


SDML 

SDDS: Sony Dynamic Digital Sound 

Multi-channel (5.1 or 7.1) digital audio format, compressed 

from PCM at 48 kHz. The data rate can go up to 1280 kbps 

SDE: Shared Data Environment 

To share data across different platforms 

SDE: Smart Decision Engine 

SDE: Spatial Database Engine 

(Databases) 

SDF: Space Delimited Format 


SDF: Standard Data Format 


SDF: System Dialog Facility 

SDH: Synchronous Digital Hierarchy 

Worldwide standard for synchronous transmission systems 

(typically fiber optic) (Communication) 

SDI: Selective Dissemination of Information 

SDI: Serial Digital Interface 

(Hardware) 

SDI: Single Document Interface 


SDI: Software Development Interface 

SDI: Standard Disk Interface 

SDI: Storage Device Interconnect 

SDI: Storage Device Interface 

SDIS: Switched Digital Integrated Service 

SDK: Software Development Kit 

(Software) 

SDKJ: Software Development Kit for Java 

SDL: Service Description Language 

SDL: Specification and Description Language 

SDL: System Design Language 

SDL/GR: Specification and Description 

Language/Graphical Representation, 

SDLC: Software Development Life Cycle 

(Software) 

SDLC: Sun DownLoad Center 


SDLC: Synchronous Data Link Control 

A link-level communications protocol used in an IBM SNA 

network that manages synchronous, code-transparent, 

serial information transfer over a link connection 


SDLP: Standard Device Level Protocol 

SDLT: Super Digital Linear Tape 

(Hardware) 

S-DLT: Super Digital Linear Tape 

(Hardware) 

SDM: Semantic Data Model 

SDM: System Data Mover 

SDM: System Development Methodology 

SDM: System Development Multitasking 

SDMF: Single Data Message Format 

Format used to send Caller ID information 


SDMI: Secure Digital Music Initiative 

SDML: Signed Document Markup Language 

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S

SDMM 

SDMM: Security Domain Membership 

Management 

Specifies the interfaces supporting the elements within a 

SDMM architecture which interact via SDMM mechanisms 

SDMMC: Secure Digital MultiMedia Card 

SDMS: Scsi Device Management System 

(NCR) 

SDN: Software Defined Network 

(AT&T) 

SDN: Sun Developer Network 


SDNS: Secure Data Network Service 

SDNSDU: Secure Domain Name System 

Dynamic Update 

(Network) 

SDO: Service Data Objects 

Framework that simplifies and unifies data application 

development in a service oriented architecture (SOA). It 

supports and integrates XML and incorporates J2EE 

patterns and best practices (Software) 

SDOC: Selective Dynamic Overload Controls 

SDP: Service Discovery Protocol 

SDP: Session Description Protocol 

(Network) 

SDP: Specialized Data Point 

SDR: Single Data Rate 

Memory access architecture (Hardware) 

SDR: Store Data Register 

SDR: Streaming Data Request 

SDRAM: Synchronous Dynamic Random 

Access Memory 

(Hardware) 

SD-ROM: Super Density Read Only Memory 

SDS: Short Data Service 

Data message in mobile TETRA network. Similar to Short 

Message Service (SMS) in GSM (Communication) 

SDS: Sudden Death Syndrome 

Used in digital photography when your camera dies a 

sudden death (Hardware) 

SDS: Sun Directory Services 


SDS: Switched Data Service 

SDS: Synchronous Data Set 

SDS: Sysops Distribution System 

SDSC: Synchronous Data Set Controller 

SDSCnet: San Diego Supercomputer Center 

NETwork 

SDSL: Symmetric Digital Subscriber Line 


S-DSMA: Slotted Digital Sense Multiple Access 

SDTV: StanDard Definition Television 

SDU: Service Data Unit 

SDU: Software Distribution Utilities 

SDV: Switched Digital Video 

(AT&T) 

SDX: Storage Data Acceleration 

SDXF: Structured Data eXchange Format 


SE: Second Edition 

(Software) 

SE: Sign Extension 

SE: Single Ended 

(Hardware) 

SE: Special Edition 

SE: Standard Edition 

(Software) 

SEA: Self Extracting Archive 

(Apple) 

SEA: Standard Extended Attribute 

(IBM) 

SEAC: Standards Eastern Automatic 

Calculator 

SEAL: Screening External Access Link 

(DEC) 

SEAL: Simple and Efficient Adaptation Layer 

SEAS: Solaris Easy Access Server 

(Network) (Sun) 

SEC: Single Edge Contact 

Processor package used in Pentium 2, Pentium 3 and 

Celeron (Hardware) (Intel) 

SEC: Single Error Correction 

SER 

SECAM: SEquentiel Couleur Avec Mémoire 

A composite color standard based on line-alternate U and 

V color difference signals that are frequency-modulated 

onto a color subcarrier 

SECB: Severely Errored Cell Block 

SECC: Single Edge Contact Cartridge 

(Hardware) 

SED: Stream EDitor 

SED: Stream-Oriented Editor 

SEG: SEGment 

SEH: Structured Exception Handling 

SEI: Service Endpoint Interface 

Java interface that declares the methods that a client can 

invoke on the service (Software) 

SEI: Software Engineering Institute 

Federally funded research and development center; its 

core purpose is to help others make measured 

improvements in their software engineering capabilities. 

See also http://www.sei.cmu.edu/ (Organizations) 

SEL: SELect 

SEL: SELector byte 

SEM: Scanning Electron Microscope 

SEM: Sql Enterprise Manager 


SEM: Standard Electronic Module 

SEM: Strategic Enterprise Management 

SEO: Search Engine Optimization 

Increasing ranking placement on search engines 

SEP: Scalable Encryption Processor 


SEPP: Secure Encryption Payment Protocol 

SEPP: Single-Edge Processor Package 

(Hardware) 

SEQUEL: Structured English QUEry Language 

SER: SERial 

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S

SER 

SER: Service Edge Router 

(Network) 

SERCOS: SErial Realtime COmmunications 

System 

SERDES: SERializer/DESerializer 

(Hardware) 

SERK: Server Extensions Resource Kit 

Microsoft Frontpage server extensions additional 

documentation and software (Software) (Microsoft) 

SERM: Structured Entity Relationship Model 

SET: Secure Electronic Transaction 

A protocol for secure electronic transactions over the 

Internet 

SET: Softwave Engineering Technology 

SETI: Search for ExtraTerrestrial Intelligence 

SETL: SEt Theory Language 

SEU: Smallest Executable Unit 

SEU: Source Entry Utility 

SF: Service Feature 

SF: Sign Flag 

SFA: Sales Force Automation 

SFBI: Shared Frame Buffer Interconnect 

SFC: System File Checker 


SFD: Start Frame Delimiter 

SFDR: Spurious-Free Dynamic Range 

SFF: Small Form Factor 

(Hardware) 

SFFC: Small Form Factor Committee 


SFI: Software Fault Isolation 

SFN: Short FileName 

SFNW5: Services For NetWare 5 


SFP: Small Formfactor Pluggable 

A standard hot swappable small multi-pin conector used 

mostly for fibre channel optical modules on disk array 

controllers. (Hardware) 

SFPS: Secure Fast Packet Switching 

SFQ: Stochastic Fair Queuing 

A hash function used to map flow 

to one of set of queues (Network) 

SFQL: Structured Full-text Query Language 

SFS: System File Server 

SFT: System Fault Tolerant 

SFTP: Secure File Transfer Protocol 

Also known as File Transfer Protocol over SSH (Secure 

SHell) 

SFTP: Simple File Transfer Protocol 

SFU: Services For Unix 

A set of tools to better integrate existing Unix and 

Windows environments (Operating systems) (Microsoft) 

SFX: SelF eXtracting 

Archive with self extracting capabilities 

SFX: Sound eFfectS 



SG: Signal Ground 

SGA: Shared Global Area 

SGAM: Shared Global Allocation Map 

(Databases) 

SGC: Scsi Graphic Command 

SGC: Server-Gated Cryptography 

(Security) (Microsoft) 

SGCP: Simple Gateway Control Protocol 

SGDT: Store Global Descriptor Table 

SGEN: Signal GENerator 

SGI: Silicon Graphics, Inc 

Constructor (SGI) 

SGM: Shaded Graphics Modeling 

SGML: Standard Generalized Markup 

Language 

A method of tagging a document to apply to many format 

elements. This language has become popular with the 

increased use of the Internet 

SGMP: Simple Gateway Management Protocol 

The predecessor to Simple Network Management Protocol 

(SNMP) (Network) 

SGR: Set Graphics Rendition 

SGRAM: Synchronous Graphics Random 

Access Memory 

(Hardware) 

SI 

SGSN: Serving Gprs Support Node 

Provides packet routing to and from the SGSN service area 

for all users in that service area (Communication) 

SHA: Secure Hash Algorithm 

A hashing algorithm that generates a 160-bit hash value 

(SHA-1). Used with the Digital Signature Algorithm (DSA) 

in the Digital Signature Standard (DSS), among other 

places (Security) 

SHAR: SHell ARchive 

SHD: Self-Healing Driver 


SHED: Segmented Hypergraphics EDitor 

SHF: Super High Frequency 

SHG: Segmented HyperGraphics 

SHIT: So Happy It's Thursday 

(Net lingo) 

SHL: Shift Logical Left 

SHOE: Simple Html Ontology Extension 

SHP: Super High Pressure 

Projector's lamp type (Hardware) 

SHR: Shift Logical Right 

S-HTTP: Secure HyperText Transport Protocol 

(Network) 

SHV: Standard High Volume 

SI: Semantic Interpretation 

Process by which a semantic interpreter generates a 

semantic result based on an utterance that matches a path 

through a grammar. A semantic result typically contains 

information that is more useful to the application than the 

text of the utterance 

SI: Serial Input 

(Hardware) 

SI: Shift-In 

SI: Source Index 

Processor register (Hardware) (IBM) 

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S

SI 

SI: System Information 

SI: System Integrator 

SI/SO: Serial In/Serial Out 

SI/SO: Shift In/Shift Out 

SIA: Semiconductor Industry Association 


SIA: Socially Intelligent Agent 

(Software) 

SIA: Specific Industry Application 

Applications that are specific to an industry (Software) 

SIB: Service Independent building Block 

SIC: Silicon Integrated Circuit 

SIC: Standard Industrial Code 

SID: Sccs delta ID 

The number used to represent a specific SCCS delta 

(Software) 

SID: Security IDentifier 

SID: Serial Input Data 

SID: Sound Interface Device 

(Hardware) 

SID: Station IDentification 

(AT&T) 

SID: Symbolic Interactive Debugger 

SID: System IDentification 

SIDF: System Independent Data Format 

SIDH: System Identification for Home 

Systems 

SIDT: Store Interrupt Descriptor Table 

SIE: Serial Interface Engine 

The USB module responsible for bus protocol (Hardware) 

SIF: Setup Information File 


SIFT: Sender-Initiated File Transfer 

(Network) 

SIFT: Stanford Information Filtering Tool 

SIG: SIGnature 

SIG: Special Interest Group 


SIGBIT: Special Interest Group on Business 

Information Technology 

SIGCAT: Special Interest Group on Cd-rom 

Applications and Technology 

SIGGRAPH: Special Interest Group for 

GRAPHics 

A group sponsored by the Association for Computing 

Machinery. SIGGRAPH holds an annual conference on 

graphics that includes vendor product displays, lectures, 

and graphics technology courses (Organizations) 

SIGIR: Special Interest Group on Information 

Retireval 


SIGPLAN: Special Interest Group on 

Programming LANguages 

SII: Static Invocation Interface 

SIIA: Software & Information Industry 

Association 

An association for software companies. See also 

http://www.siia.net/ (Organizations) 


SIS 

SIIT: Stateless Ip/Icmp Translation 

algorithm 

Translates between IPv4 and IPv6 packet headers 

(including ICMP headers) in separate translator "boxes" in 

the network without requiring any per-connection state in 

those "boxes" (Communication) 

SIL: Solid Immersion Lens 

Compact disk head technology (Hardware) 

SIM: Security Information Management 

Software designed to automate the collection of event log 

data from security devices and helping users make sense 

of it through a common management console (Security) 

SIM: SIMplex 

Used in SCSI interface for a single backplane (Hardware) 

SIM: SIMulator 

SIM: Subscriber Identity Module 

(Hardware) 

SIM: Systems Insight Manager 


SIMD: Single Instruction, Multiple Data 

SIMM: Single In line Memory Module 

A circuit board that holds surface-mount memory chips. A 

SIMM is compact and efficient (Hardware) 

SIMS: Stalker Internet Mail Server 

SIMTEL: SIMulation and TELeprocessing 

SIMULA: SIMULAtion 


SIN: Specification Information Note 

SIO: Serial Input/Output 

Communications driver 

SIP: Scsi-3 Interlocked Protocol 

SIP: Session Initiation Protocol 

IETF standard protocol for IP-communication, enabling IP- 

Telephony gateways, client endpoints, PBXs and other 

communication systems or devices to communicate with 

each other (Communication) 

SIP: Single In-line Package 

The packaging of an electronic component with all leads 

protruding from one side only (Hardware) 

SIP: Smds Interface Protocol 

SIPC: Simply Interactive Personal Computer 

(Hardware) (Microsoft) 

SIPO: Serial In, Parallel Out 

SIPP: Simple Internet Protocol Plus 

SIPP: SImple Polygon Processor 

SIPP: Single In line Pin Package 

(Hardware) 

SIPR: Secure Internet Protocol Router 

(Network) 

SIR: Save Instruction Recognition 

SIR: Serial InfraRed 


SIR: Sustained Information Rate 

SIRDS: Single-Image Random Dot Stereogram 

SIRENE: Supplementary Information REquest 

at the National Entry 

SIS: Single Instance Store 

Architecture designed to maintain duplicate files with a 

minimum of disk, cache, and backup media overhead 


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S

SIS 

SIS: Strategic Information System 

SIS: Supplier Information System 

SISAL: Streams and Iteration in a Single 

Assignment Language 

SISL: System Interrupt Steering Logic 

SISNET: Signal in Space through the interNET 

SISSL: Sun Industry Standards Source 

License 

(Sun) 

SIT: Special Information Tones 

SIT: StuffIT 

File name extension (Apple) 

SIU: System Interface Unit 

SIV: System Integrity Verifier 

SIVIT: SIemens VIrtual Touchscreen 

(Hardware) (Siemens-Nixdorf) 

SIX: Shared with Intent eXclusive 

Database management system's locking attribute 

(Databases) 

SJF: Shortest Job First 


SKIP: Simple Key management for Internet 

Protocol 

(Network) 

SKU: StockKeeping Unit 

SLA: Service Level Agreement 

A contract between a service provider and customer 

defining provider responsibilities in terms of network 

levels, times of availability, method of measurement, 

consequences if service levels aren't met, and all costs 

involved (Network) 

SLAN: Secure Local Area Network 

SLB: Server Load Balancing 

SLB: Static Load Balancing 

SLC: Subscriber Line Concentrator 


SLD: Second Level Domain 

(Network) 

SLDRAM: Synchronous Link Dynamic Random 

Access Memory 

(Hardware) 

SLDT: Store Local Descriptor Table 

SLED: Single Large Expensive Disk 

Refers to older mainframe hard disks that were used as a 

basis for comparison during the initial UC Berkeley RAID 

studies. (Hardware) 

SLEE: Service Logic Execution Environment 

SLG: Service Level Guarantee 

(Network) 

SLI: Scan Line Interlacing 

(Hardware) 

SLIC: Serial Link and Interrupt Controller 

SLIC: Session Layer Interface Card 

(Hardware) 

SLIC: Subscriber Line Interface Card 

Interface between home phone lines and Central Office 

(CO) (Hardware) 

SLIC: System Level Integration Circuit 


SLIC: System Licensed Internal Code 

(IBM) 

SLIM: Structured Language for Internet 

Markup 

SMASE 

SLIP: Serial Line Internet Protocol 

An Internet protocol used to run IP over serial lines such 

as telephone circuits or RS-232 cables interconnecting 

two systems. SLIP is now being replaced by PPP 


SLM: Service Level Management 

SLM: Spatial Light Modulator 

(Hardware) 

SLMR: Silly Little Mail Reader 

SLO: Service Level Objective 

(Network) 

SLOSH: Sea, Lake and Overland Surge from 

Hurricane 

SLOT: Scanned Laser Output Terminal 

SLP: Service Location Protocol 

(Network) 

SLP: Service Logic Program 

SLPD: Service Location Protocol Domain 

(Network) 

SLR: Single-Lens Reflex 

(Hardware) 

SLS: Softlanding Linux System 

SLSI: Super Large Scale of Integration 

The process of placing from 50,000 to 100,000 circuit 

components. Also, the quality of their connections 

(Hardware) 

SLSS: Systems Library Subscription Service 

(IBM) 

SLU: Secondary Logical Unit 

SLU: Spoken Language Understanding 

SLU: Subscriber line Unit 

(Hardware) 

SLU: Subscriber line Usage 


SM: Set Mode 

SM: Shared Memory 

SM: Smart Media 

(Hardware) 

SM: System Management 

SMA: Software Migration Assistant 

SMAE: System Management Application Entity 

SMAF: Service Management Agent Function 

SMAP: System Management Application 

Process 

SMAPI: Speech Manager Application 


(Software) 

SMART: Self-Monitoring Analysis and 

Reporting Technology 

Drives equipped with this feature report predicted failures 

based on threshold values determined by the manufacturer. 

This allows the network manager to replace a drive before 

it fails. (Hardware) 

SMASE: System Management Application 

Service Element 

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S

SMASH 

SMASH: Simple, Many And Self-Healing 

Supercomputing architecture (Hardware) (IBM) 

SMAU: Smart Multistation Access Unit 

(Network) 

SMB: Server Message Block 

A common format for sharing files, directories and devices 

in Microsoft's operating systems (Operating systems) 

SMB: Small-Medium Business 

SMBIIOS: System Management Basic Input 

Output System 

SMBus: System Management BUS 

SMC: Scsi-3 Medium changer Command 

SMC: Solaris Management Console 


SMC: Standard Microsystems Corporation 


SMD: Storage Module Device 

An industry-standard interface used for large-capacity, 

high-performance disks (Hardware) 

SMD: Surface-Mount Device 

(Hardware) 

SMDR: Station Message Detail Recording 

SMDR: Storage Management Data Requester 

SMDS: Switched Multimegabit Data Service 

An emerging high-speed networking technology to be 

offered by the telephone companies in the U.S. 

SME: Small and Medium-sized Enterprises 

SME: Subject Matter Expert 

SMF: Semantic Modelling Format 

XML-based language that can be used to persist English 

Query model information (Databases) (Microsoft) 

SMF: Service Management Function 

SMF: Single Mode Fiber 

SMF: System Manager Facility 

(Compaq) 

SMFA: Special Management Functional 

Element 

SMG: Special Mobile Group 

SMI: Security Management Interface 

(Software) 

SMI: Static Memory Interface 

(Hardware) 

SMI: Structure of Management Information 

The rules that define the objects that can be accessed 

through a network management protocol (Network) 

SMI: Sun Microsystems Inc. 

SMI: System Management Interrupt 

SMIF: Standard Mechanical InterFace 

SMIL: Synchronized Multimedia Integration 

Language 

SMIT: System Management Interface Tool 

(IBM) 

SMK: Software Migration Kit 

(Microsoft) 

SMKD: Scalable Multicast Key Distribution 

(Security) 

SML: Service Management Layer 

SML: Shared Memory Link 


SML: Siemens Modular Link 

SMX 

SML: Smart Markup Language 

The goal of SML is to enable automation of all interactions 

with XML documents providing general methods to 

represent a set of smart device functions 

SML: Standard Machine Language 

SML: Standard Meta Language 

SML/NJ: Standard Meta Language/New Jersey 

SMLI: Stateful Multi-Layer Inspection 

SMM: System Management Mode 

(Intel) 

SMM: System Manager's Manual 

SMOBC: Solder Mask Over Bare Copper 

SMOR: Storage Manager On Rom 

(Hardware) (DPT) 

SMP: Simple Management Protocol 

SMP: Smart Messaging Protocol 

(Communication) (Nokia) 

SMP: Software Motion Picture 

SMP: Symbolic Manipulation Program 

SMP: Symmetric MultiProcessing 

A form of multiprocessing in which more than one 

processor can run kernel-level code simultaneously 

(Hardware) 

SMP: System Modification Program 

(Software) 

SMP/E: System Modification 

Program/Extended 

(Software) 

SMPC: Shared Memory Parallel Computer 

SMPP: Short Message Peer to Peer protocol 

SMPP, developed by Logica Aldiscon is intended as a way 

of providing an open and generic interface between an 

ESME and a SMSC for message transfer 

SMPS: Switching Mode Power Supply 

SMPTE: Society of Motion Picture & 

Television Engineers 


SMRAM: System Management Random Access 

Memory 

SMS: Short Message Service 

SMS: System Managed Storage 


SMS: System Management Server 

SMSC: Short Message Service Centre 

SMSW: Store Machine Status Word 

SMT: Station ManagemenT 

SMT: Surface-Mount Technology 

(Hardware) 

SMT: System Management Terminal 

(Software) (Zyxel) 

SMTP: Simple Mail Transfer Protocol 

The Internet email protocol. Defined in RFC 821, with 

associated message format descriptions in RFC 822 

SMTPE: Society of Motion Picture and 

Television Engineers 

See http://www.smpte.org (Organizations) 

SMU: System Management Utility 

SMX: Server Macro eXpansion 

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S

SN 

SN: Serial Number 

SNA: Survivable Network Analysis 

(Security) 

SNA: System Network Architecture 

The proprietary network architecture of IBM (Network) 

(IBM) 

SNACP: System Network Architecture Control 

Protocol 

(Network) 

SNADS: System Network Architecture 

Distribution Service 


SNAFU: Situation Normal All Fouled Up 

(Net lingo) 

SNAM: Server Net Access Manager 

(Network) 

SNAP: Sub-Network Access Protocol 

SNAP: SubNetwork Attachment Point 

SNAP: System and Network Administration 

Program 

SNAPI: Structured N-dimensional Application 


(Oracle) 

SNAT: Secure Network Address Translation 

Provides a secure mechanism for translating internal, 

nonroutable addresses into routable addresses. As traffic 

flows out of a data center, the gateway and source address 

of IP packets are translated and switched to the 

appropriate upstream gateway router (Network) 

SNCA: Solaris Network Cache and Accelerator 

(Sun) 

SNCP: Single Node Control Point 

SND: SouND 

File Format for music 

SNEWS: Secure NEWs Server 

SNF: Server Natural Format 

SNI: Siemens Nixdorf Informationssysteme 

SNI: Site Need Index 

SNI: Sna Network Interconnection 

SNI: Subscriber Network Interface 

SNIA: Storage Networking Industry 

Association 


SNMP: Simple Network Management Protocol 

The protocol that manages networks. SNMP-enabled 

devices can communicate with each other (Network) 

SNMPSEC: Simple Network Management 

Protocol SECurity 

(Security) 

SNNS: Stuttgart Neural Network Simulator 

SNOBOL: StriNg Oriented symBOlic Language 

Programming Language (Software) 

SNP: Serial Number/Password 

SNPP: Simple Network Paging Protocol 

(Network) 

SNQP: Simple Nomenclator Query Protocol 

(Network) 

SNR: Signal to Noise Ratio 

SNRM: Set Normal Response Mode 



SOP 

SNRME: Set Normal Response Mode Extended 


SNS: Subject Name Server 

SNTP: Simple Network Time Protocol 

(Network) 

SO: Security Officer 

SO: Serial Output 

(Hardware) 

SOA: Service Oriented Architecture 

Is essentially a collection of services. These services 

communicate with each other. The communication can 

involve either simple data passing or it could involve two or 

more services coordinating some activity (Software) 

SOA: Start Of Authority 

SOAP: Simple Object Access Protocol 

(Software) 

SOB: Start Of Block 


SOC: Separation Of Concerns 

Software development technique used in aspect-oriented 

programming (AOP) (Software) 

SOC: System On a Chip 

(Hardware) 

SOCKS: SOCKet Secure 

SODIMM: Small Outline Dual In-line Memory 

Module 

(Hardware) 

SO-DIMM: Small Outline Dual In line Memory 

Module 

SOE: Standard Operating Environment 

SOEP: Secondary Operand Execution Pipeline 

SOG: Service Order Gateway 

SOH: Start Of Header 


SOHO: Small Office/Home Office 

SOI: Silicon On Insulator 

(Hardware) 

SOJ: Small-Outline J-lead 

(Hardware) 

SOL: Simulation Oriented Language 

SOM: Scripting Object Model 

(Software) 

SOM: Self-Organizing Map 

Algorithm used to visualize and interpret large highdimensional 

data sets. Typical applications are 

visualization of process states or financial results by 

representing the central dependencies within the data on 

the map 

SOM: Start Of Message 


SOM: Structured Object Method 

SOM: System Object Model 


SONAR: SOund Navigation And Ranging 

SONDS: Small Office Network Data System 

SONET: Synchronous Optical NETwork 

North American transport standard for optical networks 

with speeds from approximately 52 Mb/s (OC-1) to 10 

Gb/s (OC-192) (Network) 

SOP: Small Outline Package 

Page 139 of 167 

S

SOP 

SOP: Standard Operating Procedure 

SOS: Silicon On Sapphire 

(Hardware) 

SOS: Sophisticated Operating System 

SOS: Standard and Open System 

SOTA: State Of The Art 

SOW: Statement of Work 

SOX: Schema for Object-oriented Xml 

Is a schema proposal that includes extensible data types, 

namespaces, and embedded documentation 

SOX: SOund eXchange 

SP: Sequence Processor 

(Hardware) 

SP: Service Pack 

SP: Signal Processor 

SP: Solution Provider 

SP: Stack Pointer 


SP: System Product 

SP3: Secure Portable Player Platform 

SPA: Secure Password Authentication 

(Microsoft) 

SPA: Service Provider Api 

SPA: Software Publishers Association 


SPAG: Standards Promotion and Application 

Group 

SPAN: Space Physics Analysis Network 

SPAN: Switched Port Analyzer 

Cisco feature that selects network traffic for analysis by a 

network analyzer such as a SwitchProbe device or other 

Remote Monitoring (RMON) probe (Network) (Cisco) 

SPAP: Shiva Password Authentification 

Protocol 

(Security) 

SPARC: Scalable Processor ARChitecture 

Architecture based on a reduced instruction set computer 

(RISC) concept. Sun and its suppliers designed the 

architecture to significantly improve price and performance 


SPARQL: Simple Protocol And Rdf Query 

Language 

SPB: Stored Procedure Builder 

Development environment for creating, installing and 

testing stored procedures (Databases) (IBM) 

SPC: Scsi-3 Primary Command 

SPC: Small Peripheral Controller 

SPC: Software Publishing Certificate 

A PKCS #7 signed-data object containing X.509 

certificates (Security) 

SPC: Software Publishing Corp.. 

SPC: Statistical Process Control 

SPC: Stored Program Control 

SPCF: Service Point Command Facility 

SPCS: Stored Program Controlled Switch 

SPD: Security Policy Database 

Specifies what services are to be offered to IP datagrams 

and in what fashion (Network) 


SPD: Serial Presence Detect 

SPD: Software Product Description 

(Software) 

SPD: System Products Division 

Proprietary AS/400 I/O bus (Hardware) (IBM) 

SPIRES 

SPDL: Standard Page Description Language 

SPDU: Session Protocol Data Unit 

SPE: System Policy Editor 

It provides an administrator with the means to centrally 

manage Windows desktop environments, and is a flexible 

alternative to mandatory user profiles (Operating systems) 

(Microsoft) 

SPEC: Standard Performance Evaluation 

Corporation 

A group of participating computer system manufacturers 

that develops a series of accepted test programs to 

measure system computing performance 

SPECFS: SPECial File System 

A pseudo file system that provides access to character 

special and block devices (Operating systems) 

SPEM: Software Process Engineering 

Metamodel 

This metamodel is used to describe a concrete software 

development process or a family of related software 

development processes 

SPF: Shortest Path First 

(Network) 

SPF: Stateful Packet Filter 

(Network) 

SPF: System Programming Facility 

SPGA: Staggered Pin Grid Array 


SPI: Scsi Parallel Interface 

SPI: Security Parameter Index 

SPI: Serial Peripheral Interface 

SPI: Service Provider Interface 

SPI: Smart Plug-In 

SPI: Stateful Packet Inspection 

(Security) 

SPI: Stream Programming Interface 

(Software) 

SPI: System Packet Interface 

(Network) 

SPI: System Programming Interface 

SPI-2: Scsi Parallel Interface - version 2 

Contains all pertinent features from SCSI-2, SPI, and Fast- 

20 plus the new features of Fast-40 and Low Voltage 

Differential. SPI-2 is a complete definition of the parallel 

SCSI physical and protocol layers 

SPI-3: Scsi Parallel Interface - version 3 

Contains all pertinent features from SPI-2 plus the new 

features of Fast-80 (160 MByte/Sec on 16-bit buses) and 

packetized protocol. Thus SPI-3 is a complete definition of 

the parallel SCSI physical and protocol layers 

SPID: Service Profile IDentifier 

(Network) 

SPIKE: Science Planning Intelligent 

Knowledge-based Environment 

SPIRE: Spatial Paradigm for Information 

Retrieval and Exploration 

SPIRES: Stanford Public Information 

REtrieval System 

Page 140 of 167 

S

SPKI 

SPKI: Simple Public Key Infrastructure 

(Security) 

SPKM: Simple Public-Key Mechanism 

SPL: Schedule Plus type Library 


SPL: Set Priority Level 

SPL: SPelL checker 


SPL: SPooLer 

SPL: Stored Procedure Language 

(Databases) 

SPL: System Programming Language 

(HP) 

SPLD: Simple Programmable Logic Device 

SPM: Statistical Packet Multiplexing 

Technology to dynamically allocate bandwidth to active 

circuits (Network) 

SPM: System Performance Monitor 

(IBM) 

SPM/2: System Performance Monitor/2 

SPN: Service Principal Name 

The name by which a client uniquely identifies an instance 

of a service. If you install multiple instances of a service, 

each instance must have its own SPN 

SPOC: Single Point Of Contact 

SPOF: Single Point Of Failure 

SPOOL: Simultaneous Peripheral Operations 

On Line 

SPOT: Shared Product Object Tree 

(IBM) 

SPP: Scalable Parallel Processing 

SPP: Sequenced Packet Protocol 

SPP: Standard Printer Port 

SPPS: Scalable Power Parallel System 

(IBM) 

SPR: Software Problem Report 

A bug report. (Software) 

SPR: Special Purpose Register 

(Hardware) 

SPR: Statistical Pattern Recognition 

SPR: Symmetrical Phase Recording 

(Hardware) 

SPREAD: Systems Programming, Research, 

Engineering And Development 

(IBM) 

SPS: Secure Packet Shield 

SPS: Shock Protection System 

SPS: Standby Power System 

SPS: Structured PostScript 

That PostScript code which has been commented and 

structured in a strict way to enable filters and print 

spoolers to manipulate it without actually processing any 

of the PostScript code 

SPS: Symantec Product Specialist 

(Symantec) 

SPSS: Statistical Package for the Social 

Sciences 

(Software) 

SPT: Scsi Pass Through 


SPT: Sectors Per Track 

SPTI: Scsi Pass-Through Interface 

SPTS: SharePoint Team Service 


SPU: System Processing Unit 

SPUC/DL: Serial Peripheral Unit 

Controller/Data Link 

SPUD: Storage Pedestal Upgrade Disk 

SPX: Sequenced Packet Exchange 


SQ: SQueezed 

SQE: Signal Quality Error 

SQFP: Small Quad Flat Package 

IC package 

SQL: Structured Query Language 

The international standard language for defining and 

accessing relational databases (Databases) 

SQL/CLI: Structured Query Language/Call 

Level Interface 

SQL/DS: Structured Query Language/Data 

System 

(IBM) 

SQLJ: Structured Query Language for Java 

(Databases) 

SQM: Software Quality Management 

(Software) 

SQoS: Secure Quality Of Service 

SQRT: SQuare RooT 

SR: Service Release 

SR: Shift Register 

SR: Speech Recognition 

SR: Status Register 

(Hardware) 

SRAM: Shadow Random Access Memory 

SRAM: Static Random Access Memory 

(Hardware) 

SRAPI: Speech Recognition Application 


sRGB 

SRAT: Static Resource Affinity Table 

Can be used to describe the physical location of 

processors and memory in large-scale systems, allowing 

threads and memory to be grouped in an optimal manner 


SRB: Source-Route Bridge 

SRC: SouRCe 


SRC: System Resource Controller 

(IBM) 

SRD: Screen ReaDer system 

SRD: Support Readiness Document 

Free documents that focus on installation, configuration, 

and common user problems related to various Java 

platforms and tools (Sun) 

SRDRAM: Self-Refreshed Dynamic Random 

Access Memory 

SRE: Self Routing switch Element 

SRF: Service Resource Function 

sRGB: Standard Red Green Blue 

(Hardware) 

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SRGS 

SRGS: Speech Recognition Grammar 

Specification 

Grammar intended for use by speech recognizers and other 

grammar processors so that developers can specify the 

words and patterns of words to be listened for by a speech 

recognizer. See also http://www.w3.org/TR/speechgrammar/ 

SRL: Segmentation and Reassembly Layer 

SRM: Security Reference Monitor 

SRM: Storage Resource Manager 

(Software) 

SRM: Supplier Relationship Management 

Software enabling a company or entity to better coordinate 

activities and share information with suppliers (Software) 

SRMD: Security Risk Management Discipline 

Detailed process that is useful in determining which 

threats and vulnerabilities have the most potential impact 

on a particular organization (Security) (Microsoft) 

SRM-E: Service Resource Module Enhanced 


SRMP: Soap Reliable Messaging Protocol 

SRMP enhances SOAP by defining additional headers that 

ensure reliability in application-to-application 

communication (Software) 

SRN: Source/Recipient Node 

SRO: Sharable and Read Only 

SRP: Secure Remote Password 

Secure password-based authentication and key-exchange 

protocol. See also http://srp.stanford.edu/ (Security) 

SRP: Security Rollup Package 


SRP: Source Routing Protocol 

SRP: Suggested Retail Price 

SRPI: Server-Requester Programming 

Interface 

(IBM) 

SRQ: Service ReQuest 

SRR: Serially Reusable Resource 

SRS: Screen Reader System 

SRS: Shared Registration System 

(Network) 

SRS: Sound Retrieval System 

SRVIFS: SeRVer Installable File System 

SS: Single-Sided 

(Hardware) 

SS: Solid State 

(Hardware) 

SS: Stack Segment 


SS/SNA: Server to Server System Network 

Architecture 

SS7: Signaling System 7 

SSA: Serial Storage Architecture 

(Hardware) 

SSA: Survivable Systems Analysis 

Practical engineering process that enables you to 

systematically assess the survivability properties of 

proposed systems, existing systems, and modifications to 

existing systems (Security) 

SSA: System Software Associates 

SSAD: Structured System Analysis and Design 


SSADM: Structured System Analysis and 

Design Method 

SSAP: Session Service Access Point 

SSAP: Source Service Access Point 

SSB: Single SideBand 

SSBAM: Single SideBand Amplitude 

Modulation 

SSC: Scsi Stream Command 

SSCE: Site Server Commerce Edition 

(Microsoft) 

SSM 

SSCF: Service Specific Coordination Function 

SSCOP: Service Specific Connection 

Orientated Protocol 

SSCP: Service Switching Control Point 

SSCP: System Services Control Point 

SSCP: Systems Security Certified Practitioner 

SSCS: Service Specific Convergence Sublayer 

SSCS: Solid-State Circuits Society 


SSD: Solid State Disk 

SSDD: Same S**t Different Day 

(Net lingo) 

SSDP: Simple Service Discovery Protocol 


SSDU: Session Service Data Unit 

SSE: Software Support Engineer 

SSE: Streaming Simd Extensions 

Xeon CPU extension to the instruction set (Hardware) 

(Intel) 

SSEC: Selective Sequence Electronic 

Calculator 

(IBM) 

SSF: Service Switching Function 

SSFDC: Solid State Floppy Disc Card 

Also known as SmartMedia (Hardware) 

SSG: Service Selection Gateway 


SSGA: System Support Gate Array 

SSH: Secure SHell 

SSH: Site Security Handbook 

(Security) 

SSI: Server-Side Include 

SSI: Single System Image 

SSI: Small-Scale Integration 

The process of placing fewer than 10 components on one 

chip (Hardware) 

SSID: Service Set IDentifier 

(Network) 

SSJS: Server-Side JavaScript 

(Software) 

SSL: Secure Sockets Layer 

A protocol for secure network communications using a 

combination of public and secret key technology (Security) 

SSL: Synthesizer Specification Language 

SSM: Source Specific Multicast 

Extension of IP multicast where datagram traffic is 

forwarded to receivers from only those multicast sources 

to which the receivers have explicitly joined (Network) 

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SSML 

SSML: Speech Synthesis Markup Language 

Markup specification for voice browsers designed to 

provide a rich, XML-based markup language for assisting 

the generation of synthetic speech in Web and other 

applications. See also http://www.w3.org/TR/speechsynthesis/ 

SSO: Single Sign-On 

(Security) 

SSP: Security Support Provider 

A dynamic-link library that implements the SSPI by 

making one or more security packages available to 

applications. Each security package provides mappings 

between an application's SSPI function calls and an actual 

security model's functions (Security) 

SSP: Service Switching Point 

SSP: Silicon Switch Processor 

SSP: Storage Service Provider 

SSP: Switch to Switch Protocol 

SSP: System Stack Pointer 

SSP: System Support Program 

IBM s/36 operating system (Operating systems) (IBM) 

SSPI: Security Support Provider Interface 

A common interface between transport-level applications, 

such as Remote Procedure Call (RPC), and security 

providers. SSPI allows a transport application to call one of 

several security providers to obtain an authenticated 

connection (Security) 

SSRP: Simple Server Redundancy Protocol 

(Cisco) 

SSS: System Support Station 

(Hardware) 

SSSD: Single Sided Single Density 

SST: Shiva Smart Tunneling 

SST: Simple Sipp Transition 

SST: Spread-Spectrum Technology 

SST: Sustained Stewardship Teraflop 

(IBM) 

SST: Swedish Summer Time 


SST: Systems Services and Technology 

SSTP: Shared Spanning Tree Protocol 

(Network) 

SSU: System Setup Utility 

SSX: Small Services eXecutive 

Operating system (Operating systems) 

STA: Single Threaded Apartment 

A threading context for components that require a 

message queue or thread affinity. Access to components in 

an STA is by definition synchronized (Software) (Microsoft) 

STA: Spanning Tree Algorithm 

STAR: Self-defining Text ARchival 

STAR: Shareware Trade Association and 

Resources 

StAX: STreaming Api for Xml 

STB: Set-Top Box 

(Hardware) 

STB: Simply The Best 

Name of many companies 

STB: Software Technical Bulletin 

STB: STroBe 


STC: SeT Carry flag 

STC: Sub-Technical Committee 

STD: SeT Direction flag 

STD: STanDard 

STD: State Transition Diagram 

STDA: StreetTalk Directory Assistance 

(Banyan) 

STDAUX: STanDard AUXiliary 

STDERR: STanDard ERRor 

STDIN: STanDard INput 

STDM: Statistical Time Division Multiplexer 

STDOUT: STanDard OUTput 

STDPRN: STanDard PRiNter 

STE: Section Terminating Equipment 

StP 

STEP: STandard for the Exchange of Product 

data 

Is a major International Standards Organisation (ISO) 

effort to standardise methods for the exchange of data from 

many fields of engineering 

STEP: Standard Template for Electronic 

Publishing 

STF: STructured File 

File name extension (Lotus) 

STFG: Search The Friendly Google 

(Net lingo) 

STFN: Surf The F***ing Net 

For those who RTFM, and still couldn't work it out (Net 

lingo) 

STFU: Shut The F**k Up 

(Net lingo) 

STFW: Search The F***ing Web 

Answer for easy-find questions (Net lingo) 

STI: SeT Interrupt flag 

STING: Software Technology INterest Group 

STIX: SmallTalk Interface to X 

STK: Satellite ToolKit 

Graphical, object-oriented software for satellite and space 

station orbital and sensor coverage analysis (Software) 

STL: Standard Template Library 

(Software) 

STM: Scanning Tunneling Microscope 

(Hardware) 

STM: Synchronous Transfer Mode 

STM: Synchronous Transport Module 


STN: Super-Twist Nematic 


STN-LCD: SuperTwist Nematic Liquid Crystal 

Display 

STONE: STructured and OpeN Environment 

STOS: STOre String 

STP: Secure Transfer Protocol 

STP: Service Transaction Program 

STP: Shielded Twisted Pair 

(Hardware) 

STP: Signal Transfer Point 

StP: Software Through Pictures 

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STP 

STP: Spanning Tree Protocol 

STP: Straight Through Processing 

Ability to take a financial transaction though complete 

confirmation automatically 

STP: Synchronized Transaction Processing 

STPML: Straight Through Processing Markup 

Language 

An XML message specification designed for the financial 

securities trading industry to meet the requirements of 

straight through processing 

STPP: Strategic Technology Protection 

Program 


STR: Store Task Register 

STR: Suspend To Ram 

Power saving state 

STR: Synchronous Transmitter Receiver 

STRESS: STRuctural Engineering System 

Solver 


STRUDL: STRUctural Design Language 


STS: Synchronous Transport Signal 

SONET signal (Communication) 

STT: Secure Transaction Technology 

(Microsoft) 

STTL: Standard Transistor Transistor Logic 

(Hardware) 

STTS: Simple Tree Transformation Sheets 

STX: Start of TeXt 


STX: Streaming Transformations for Xml 

One-pass transformation language for XML documents. 

STX is intended as a high-speed, low memory consumption 

alternative to XSLT. See http://stx.sourceforge.net/ 

(Software) 

STY: STYle 


SU: Scalable Unit 

(Hardware) 

SUA: Single User Account 

Allows multiple users to share a single IP address (either 

dynamic or static) assigned by your Internet Service 

Provider (ISP) (Network) 

SUB: SUBroutine 

SUB: SUBstitute 

SUB: SUBtract 

SUE: Stupid User Error 

(Net lingo) 

SUG: Sun User's Group 

SUMA: Software Upgrade and Maintenance 

Agreement 

(Software) 

SUN: Stanford University Network 

SUNET: Swedish University NETwork 

SUNVIEW: SUN's Visual Integrated 

Environment for Workstations 

SUR: Shell Update Release 



SURAnet: Southeastern Universities 

Research Association NETwork 

SUS: Software Update Services 

Software update management solution (Software) 

(Microsoft) 

SUSP: System Use Sharing Protocol 

SUT: Socket Under Test 

SUTT: Single User Test Tools 

SWIFT 

SVC: Switched Virtual Circuit 

Virtual connection set up only for the duration of a single 

communications session. In contrast, a permanent virtual 

circuit remains available at all times (Network) 

SVCD: Super Video Compact Disc 

(Hardware) 

SVF: Simple Vector Format 

SVG: Scalable Vector Graphics 

SVGA: Super Video Graphics Array 

Video specification for a resolution of 800 X 600 pixels in 


S-VHS: Super Video Home System 

SVI: Switched Virtual Interface 

Represents a VLAN of switch ports as one interface to the 

routing or bridging function in the system (Network) 

SVID: System V Interface Definition 

Applies to the Unix OS (Operating systems) 

SVM: System Virtual Machine 

(Microsoft) 

SVM: System Volume Mangement 

SVN: Switched Virtual Network 

(IBM) 

SVR: SerVeR 

SVR4: System V Release 4 

SVRn: System V Release n 

Applies to the Unix OS (Operating systems) 

SVS: Symmetric Virtual Servers 

SW: SoftWare 

SW: Status Word 

SWAC: Standards Western Automatic 

Calculator 

SWAIS: Simple Wide Area Information Server 

SWAK: Sealed With A Kiss 

Saying goodbye (Net lingo) 

SWAN: Sun Wide Area Network 

SWAP: Shared Wireless Access Protocol 


SWAP: Simple Workflow Access Protocol 

SWAP: Stewart Warner Array Program 

SWAR: Simd Within A Register 

A form of parallelism used in most microprocessors. 

Examples include MMX, SSE, SSE2, and 3DNow 

instructions (Hardware) 

SWBPD: Semantic Web Best Practices and 

Deployment 

SWF: ShockWave Format 

File format 

SWI: SoftWare Interrupts 

SWIFT: Society for Worldwide Interbank 

Financial Telecommunication 

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SWIG 

SWIG: Simplified Wrapper and Interface 

Generator 

SWIM: System Wide Information 

Management 

(Network) 

SWISH: Simple Web Indexing System for 

Humans 

SWMBO: She Who Must Be Obeyed 

(Net lingo) 

SWOP: Specifications for Web Offset 

Publications 

These specifications standardize the submission of 

materials supplied to web offset publications, and areas of 

responsibility for each of the involved industry segments. 

See http://www.swop.org/ (Organizations) 

SWP: Simple Web Printing 

SWP: SWaP 


SWRL: Semantic Web Rule Language 

Intended to be the rule language of the Semantic Web 

SWS: Sun Web Server 

(Sun) 

SWS: Symantec Web Security 

(Symantec) 

SWT: Standard Widget Toolkit 

(Software) 

SWT: Swedish Winter Time 


SWTX: Server Workstation Technology 

eXtended 

A size and form factor specification for motherboards 

(Hardware) 

SX: SimpleX 


SXGA: Super eXtended Graphics Array 

Video specification for a resolution of 1280 X 1024 pixel 

(Hardware) 

SXGA+: Super eXtended Graphics Array Plus 


(Hardware) 

SXI: StarOffice Impress 

Star/Open Office presentation file extension (Software) 

SXQL: Simple Xml Query Language 

SYL: See You Later 

(Net lingo) 

SYLK: SYmbolic LinK 

SYM: SYMbols 


SYMM: SYnchronized MultiMedia 

SYMPL: SYsteM Programming Language 

SYN: SYNonym 


SYNC: SYNChronous 

SYS: SYStem 

SYS: SYStem configuration 


SYS: SYStem device driver 


SYSADMIN: SYStem ADMINistrator 

SYSGEN: SYStem GENerator 


SYSLOG: SYStem LOG 

SYSMOD: SYStem MODification 

SYSOP: SYStem OPerator 

SYSREQ: SYStem REQuest 

SZ: Send Zmodem 

T: Tera 


T&E: Travel And Entertainment 

(Software) 

T&L: Transform And Lighting 

Graphics function 

T/B: Top/Bottom 

T/R: Transmit/Receive 

T9: Typing on 9 keys 

TA: Technical Assembly 

TA: Terminal Adapter 

An ISDN-compatible device that converts non-ISDN 

transmission to ISDN transmission (Hardware) 

TAB: Tape Automated Bonding 

(Hardware) 

TAC: Technical Assistance Center 

(Cisco) 

TAC: Terminal Access Controller 

T 

TAR 

TACACS: Terminal Access Controller Access- 

Control System 

(Network) 

TACS: Total Access Communication System 

TAD: Telephone Answering Device 

TAF: Transparent Application Failover 


TAG: Technical Advisory Group 

TAG: Telecommunications Access Gateway 


TAL: Typed Assembly Language 

(Software) 

TalAE: TALigent Application Environment 

(Software) 

TalDE: TALigent Development Environment 

TalOS: TALigent Object Services 

TAN: Table Area Network 

TAN: Tape Area Network 

TAN: TransAction Number 

TANSTAAFL: There Ain't No Such Thing As A 

Free Lunch 

(Net lingo) 

TAO: Track-At-Once 


TAP: Telelocator Alphanumeric Protocol 

TAP: Terminal Access Point 

TAPCIS: The Access Program for the 

Compuserve Information Service 

TAPI: Telephony Application Programming 

Interface 


TAR: Tape ARchive 

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T

TARFU 

TARFU: Things Are Really F***ed Up 

(Net lingo) 

TAS: Telcom Analysis System 

(Hardware) 

TAS: Telephone Access Server 

TAS: Total Access System 

TAS: Totalnet Advanced Server 


TASM: Turbo ASseMbler 


TAT: Theoretical Arrival Time 

TAXI: Transparent Asynchronous 

Transceiver Interface 

TB: TeraByte 

1024 gigabytes 

TBAV: ThunderByte Anti Virus 

(Software) 

TBBS: The Bread Board System 

TBC: Time Base Corrector 

TBGA: Tape Ball Grid Array 

(Hardware) 

TBH: To Be Honest 

(Net lingo) 

TBK: ToolBooK 


TBMT: Transmitter Buffer eMpTy 

(Hardware) 

TBO: Total Benefit of Ownership 

TBT: Technology Based Training 

TBU: Tape Backup Unit 

TC: Technical Committee 

TC: Test Control 

TC: Transmission Control 


TC: Transmission Convergence 


TCA: Transaction Cost Analysis 

Methodology that can be used to measure the cost of 

individual shopper operations such as registering, 

browsing, searching a catalog, adding an item to a 

shopping cart, checking out, and so on (Microsoft) 

TCAM: TeleCommunication Access Method 

(IBM) 

TCAP: Transaction Capabilities Application 

Part 

Adds transaction based functionality to the Public Switch 

Telephone Network (PSTN) 

TCAV: Trend Chip Away Virus 

Antivirus hardware for motherboards that blocks boot-time 

viruses (Hardware) 

TCB: Trusted Code Base 

(Software) 

T-CCS: Transparent Common Channel 

Signaling 


TCK: Test Compatibility Kit 


TCL: Tool Control Language 

TCL/TK: Tool Control Language ToolKit 


TCM: Technology Change Management 

(Software) 

TCM: Thermal Conduction Module 

TCM: Time Compression Multiplexer 

TCM: Trellis-Coded Modulation 

TCO: Tjänstemännens Central Organization 

Swedish organization establishing norms for monitor 

electromagnetic emissions (Organizations) 

TCO: Total Cost of Ownership 

TCP: Tape-Carrier Package 

(Hardware) 

TCP: Transmission Control Protocol 

A communications protocol that ensures data is sent 

between computers on the Internet (Network) 

TCP/IP: Transmission Control 

Protocol/Internet Protocol 

The protocol suite originally developed for the Internet. 

Also called Internet Protocol suite (Network) 

TCPA: Trusted Computing Platform Alliance 

(Intel) 

TCP-ACO: Transmission Control Protocol 

Alternate Checksum Option 

TDI 

TCPBEUI: Transmission Control Protocol Bios 

Extended User Interface 

TCPC: The Clean Personal Computer group 

TCPLDP: Transmission Control Protocol 

extensions for Long Delay Paths 

TCPLW: Transmission Control Protocol Large 

Windows 

(Network) 

TCPSAT: Transmission Control Protocol over 

SATellite 

(Network) 

TCQ: Tagged Command Queuing 

SCSI feature to allow multiple I/O requests 

TCSEC: Trusted Computer Systems 

Evaluation Criteria 

TCSH: Trusted C SHell 

TD: Transmit Data 

(Hardware) 

TDA: To Do Archive 


TDC: Tabular Data Control 

TDC: Tape Data Controller 

TDC: Terrestrial Data Circuit 

TDCC: Transportation Data Coordinating 

Committee 

TD-CDMA: Time Division Code Division 

Multiple Access 


TDD: Telecommunications Device for the Deaf 

TDE: Terminal Display Editor 

TDES: Triple Data Encryption Standard 

(Security) 

TDF: Trace Definition File 


TDF: Typeface Definition File 


TDI: Transport Data Interface 

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TDL 

TDL: Test Description Language 

TDM: Technical Document Management 

TDM: Telecom Designed Network 

TDM: Text Data Mining 

TDM: Time-Division Multiplexing 

Multiplexing technique that apportions the time available 

on its composite link equally between its channels, 

interleaving data from successive channels 


TDMA: Time Division Multiple Access 

TDMATBICPLY: This Doesn't Mean A Thing But 

It Confuses People Like You 

(Net lingo) 

TDMS: Terminal Display Management System 

TDP: Tag Distribution Protocol 

TDP: Telelocator Data Protocol 

TDP: Triton Data Path 

TDR: Time Domain Reflectometry 

TDS: Tabular DataStream 

Database client to server communication protocol 

(Databases) 

TDS: Tex Directory Structure 

TDSR: Transmitter Data Service Request 

TDtoDP: Tablet Coordinates TO Display 

Coordinates 

TE: Terminal Equipment 

An ISDN-compatible terminal device that is attached to 

the ISDN at the user interface 

TE/2: Terminal Emulator/2 

TEAMA: Taiwanese Electric Appliance 

Manufacturer's Association 

TEB: Thread Environment Block 

TEC: Tokyo Electronics Corporation 

TECO: Text Editor and COrrector 

TED: Tiny EDitor 

TED: Transient Electromagnetic Device 

(Hardware) 

TEDIS: Trade Electronic Data Interchange 

Systems 

TEI: Terminal Endpoint Identifier 

TEI: Text Encoding Initiative 

TEL: Tivoli Enterprise Console 

TELCO: TELephone Central Office 


TeleVAS: TELEphony Value Added Service 

TELNET: TELephone NETwork 

TEML: Turbo Editor Macro Language 

(Borland) 

TEMP: TEMPorary 

TEMS: Tornado Electronic Messaging Service 

(Software) 

TEN: TransEuropean Network 

TER: Thermal Eclipse Reading 

(Sony) 

TERM: Technology Enabled Relationship 

Management 

TERMCAP: TERMinal CAPability 


TERMINFO: TERMinal INFOrmation 

TERMPWR: TERMinator PoWeR 

TESS: The Exponential Security System 

(Security) 

TETRA: TErrestrial Trunked RAdio 

Modern digital Private Mobile Radio (PRM) and Public 

Access Mobile Radio (PAMR) technology for police, 

ambulance and fire services, security services, utilities, 

military etc. (Communication) 

TFDD: Text File Device Driver 

TFEL: Thin-Film ELectroluminescent 

TFI: Terminal Facility Identifier 

TFM: Tagged Font Metric 


TFP: Tops Filing Protocol 

TFS: Translucent File Service 

A copy-on-write file system that enables users to share 

file hierarchies while providing each user with a private 

hierarchy for saving files as they are modified 

TFT: Task File Table 

TFT: Thin Film Transistor 

LCD monitors manufacturing technology (Hardware) 

TFTP: Trivial File Transfer Protocol 

Simple version of the FTP protocol often used to transfer 

data with diskless workstations, X-terminals and routers 

(Network) 

TIA 

TFTPD: Trivial File Transfer Protocol Daemon 

Server-side TFTP service responsible for hosting specific 

file download requests made by the client 

TGA: TarGA 

File format for images 

TGC: Terminal Group Controller 

TGIF: Thank Goodness It's Friday 

(Net lingo) 

TGP: Thumbnail Gallery Post 

TGT: Ticket Granting Ticket 

(Security) 

TH: Transmission Header 


THD: Total Harmonic Distortion 

A sound quality parameter (lower is better) (Hardware) 

THEnet: Texas Higher Education NETwork 

THOMAS: The House of representatives Open 

Multimedia Access System 

THOR: Tandy High-performance Optical 

Recording 

THR: Transmit Holding Register 

THS: THeSaurus 


THT: Token Holding Timer 

THX: Tomlinson Holman eXperiment 

Certification and quality control program that applies to 

sound systems and acoustics in theaters, home 

equipment, and digital mastering processes 

TI: Texas Instruments 

TI: Transport Independent 

TIA: Telecommunications Industry 

Association 

TIA: Thank you In Advance 

(Net lingo) 

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TIA 

TIA: The Internet Adapter 

TIB: Tag Information Base 

TiB: TebIByte 



GiB 

TIC: Total Initial Cost 

TID: Target IDentifier 

TIES: Time Independent Escape Sequence 

TIF: Tagged Image File 


TIFF: Tagged Image File Format 


TIGA: Texas Instruments Graphics 

Architecture 


TIGER: Topologically Integrated Geographic 

Encoding and Referencing 

TIIAP: Telecommunications and Information 

Infrastructure Assistance Program 

TIL: Tech Information Library 

TIM: Technical Information Memo 

(Compaq) 

TIME: Timed Interactive Multimedia 

Extensions 

TIMI: Technology Independent Machine 

Interface 

(IBM) 

TIMS: Text Information Management Systems 

TINA: Telecommunication Information 

Networking Architecture 

TINA-C: Telecommunication Information 

Networking Architecture Consortium 

TIP: Terminal Interface Processor 

TIP: Text Input Processor 

(Software) 

TIP: Transaction Internet Protocol 

TIP: Transputer Image Processing 

TIPHON: Telecommunications and Internet 

Protocol Harmonzation Over Networks 

ETSI Standard to support the market for voice 

communication and related voice band communication 

between users. It will ensure that users connected to IP 

based networks can communicate with users in Switched 

Circuit Networks 

TIS: Tools Interface Standard 

TIS: Transaction Information System 

TITOFET: Tunneling-In, Tunneling-Out Field 

Effect Transistor 

TK/TK: TracK to TracK 

TKIP: Temporal Key Integrity Protocol 

(Security) 

TL1: Translation Language 1 


TLA: Three Letters Acronym 

TLB: Translation Look-aside Buffer 

(Hardware) 

TLD: Tag Library Descriptor 



TLD: Top Level Domain 

(Network) 

TLDA: Technology License and Distribution 

Agreement 

TLE: Template Language Extensions 

(Software) 

TMPFS 

TLI: Transport Layer Interface 

An interface that is to supersede the socket-based 

interprocess communications mechanisms as the way to 

access transport services. Modeled after the industry 

standard ISO Transport Service Definition 


TLN: Trunk Line Network 

TLP: Transmission Level Point 

TLS: Thread Local Storage 

(Software) 

TLS: Transport Layer Security 

A protocol from the IETF based on SSL. It will eventually 

supersede SSL while remaining backward-compatible with 

SSL implementations (Security) 

TLSWG: Transport Layer Security Working 

Group 


TLU: Table LookUp 

TLX: TeLeX 

TM: TradeMark 

TM: Traffic Management 


TM: Transaction Manager 

TM: Transaction Monitor 

TM: Translation Memory 

Also known as translation database, is a collections of 

entries where a source text is associated with its 

corresponding translation in one or more target languages 

TM: Transmission and Multiplexing 


TMA: Transparent Media Adapter 

Scanner add-on to acquire material on transparent media 

(Hardware) 

TMDA: Tagged Message Delivery Agent 

TMDB: Tivoli Management DataBase 

TMDS: Transition-Minimized Differential 

Signaling 

(Hardware) 

TME: Tivoli Management Environment 

(Tivoli) 

TMF: Tivoli Management Framework 

TMF: Transaction Monitoring Facility 

TMI: Too Much Information 

(Net lingo) 

TML: TeMpLate 


TMN: Telecommunication Management 

Network 


TMP: TeMPorary 


TMPFS: TeMPorary File System 

A file system type that uses local memory for disk reads 

and writes (Operating systems) 

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TMR 

TMR: Transient Memory Record 

TMR: Triple Modular Redundancy 

TMS: Time Multiplexed Switch 

TMS: Traffic Management System 

TMS: Truth Maintenance System 

TMSC: Tape Mass Storage Control 

TMX: Translation Memory eXchange 

Vendor-neutral open XML standard for the exchange of 

Translation Memory (TM) data created by Computer- 

Assisted Translation (CAT) software 

TN: Twisted Nematic 

(Hardware) 

TNC: Terminal Node Controller 

TNC: Threaded Neill Concelman 

TNEF: Transport Neutral Encapsulation 

Format 

Format for converting a set of MAPI properties into a serial 

data stream. Primarily used by transport providers that 

need to encode MAPI message properties for transmission 

through a messaging system that does not support those 

properties directly (Software) (Microsoft) 

TNFS: Trusted Network File System 

(Security) 

TNG: The New Generation 

(CAI) 

TNIEG: Trusted Network Interpretation 

Environmental Guideline 

(Network) 

TN-LCD: Twisted Nematic Liquid Crystal 

Display 

TNO: The Netherlands Organization 

TNPC: Taiwanese New Pc Consortium 

TNS: Trivial Name Server 

TNT: The News Toolkit 

See also NeWS (Sun) 

Tnx: ThanKS 

(Net lingo) 

TOC: Table Of Contents 

TOD: Time Of Day 

TODC: Time-Of-Day Clock 

A clock module that contains the system date and time 

(year-month-day-hour-minutes). (Hardware) 

TODS: Transactions On Database Systems 

TOE: Tcp Off-load Engine 

(Hardware) 

TOEFL: Test Of English as a Foreign Language 

TOF: Tiny Open Firmware 

TOGAF: The Open Group Architecture 

Framework 

TOMS: Transactions On Mathematical 

Software 

TOOIS: Transactions On Office Information 

Systems 

TOP: Technical Office Protocol 

TOPICS: Total Online Program and 

Information Control System 

TOPLAS: Transactions On Programming 

Languages And Systems 


tops: Theoretical Operations Per Second 

Processing power (Hardware) 

TOPS: Timesharing OPerating System 

TOS: Terms Of Service 

TOS: The Operating System 

TOS: Time Of Service 

TR 

ToS: Type Of Service 

A field within an IP header which can be used by the device 

originating the packet, or by an intermediate networking 

device, to signal a request for a specific QoS level 

(Network) 

TP: Transaction Processing 

TP: Turbo Pascal 

TP: Twisted Pair 

TPC: Transaction Processing Council 


TPCP: Two Phase Commit Protocol 


TPD: Tail Packet Discard 

(Network) 

TPD: Technical Product Documentation 

TPDU: Transport Protocol Data Unit 

TPE: Twisted Pair Ethernet 

TPF: Tiny Personal Firewall 

Software firewall produced byTiny Software, Inc 

(http://www.tinysoftware.com/) (Security) 

TPF: Transaction Processing Facility 

(IBM) 

tpi: Tracks Per Inch 

Recording density (Hardware) 

TPI: Transport Provider Interface 

The kernel components of the Transport Layer Interface 

(TLI) 

TPL: Table Producing Language 

TPL: Transaction Processing Language 

TPM: Transaction Processing Manager 

tpm: Transactions Per Minute 


TPORT: Twisted pair PORT transceiver 

(AT&T) 

TPOS: Transaction Processing Operating 

System 

TPPC: Transaction Processing Performance 

Council 


TP-PMD: Twisted Pair Physical layer Medium 

Dependent 

TPR: Third-Party Relay 

TPS: Transaction Processing System 

TPS: Transactions Per Second 

TPT: Twisted Pair Transceiver 

TPW: Turbo Pascal for Windows 

TPx: Transport Protocol class x 

TQFP: Thin Quad Flat Pack 

(Hardware) 

TQM: Total Quality Management 

TR: Technical Report 

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TR 

TR: Terminal Ready 

TR: TRavan 

Tape medium type (TR-3, TR-4) (Hardware) 

TRADIC: TRansistorized Airborne DIgital 


Name of first computer to be entirely transistorized 

TRAM: TRAnsputer Module 

(Hardware) 

TrAX: TRansformation Api for Xml 

TREX: Tree Regular Expressions for Xml 

A means of expressing validation criteria by describing a 

pattern for the structure and content of an XML document 

TRIB: Transfer Rate of Information Bits 

TRIP: Telephony Routing over Internet 

Protocol 

Discovery and exchange of IP telephony gateway routing 

tables between providers 

TRIPS: Trade Related aspects of Intellectual 

Property rightS 

TRM: TeRMinal 


TRN: Threaded Read News 

TRN: Token Ring Network 

(Network) 

TRO: Total Return on Ownership 

TROLI: Token Ring Optimized Link Interface 

TRON: The Realtime Operating system 

Nucleus 

TROSN: The Real-time Operating System 

Nucleus 

TRP: Token Ring Port 

TRPC: Transactional Remote Procedure Call 

TRR: Token Ring Repeater 

TRT: Token Rotation Timer 

TS: Terminal Services 


TS: Top Secret 

TS: Transaction Server 


TS/SI: Top Secret/Sensitive Information 

TSA: Target Service Agent 


TSA: Technical Support Alliance 

TSA: Telephony Services Architecture 

TSAP: Transport Service Access Point 

TSAPI: Telephony Server Application 


(Novell) 

TSB: Termination Status Block 

TSC: Triton System Controller 

TSD: Type-Specific Driver 

TSDU: Transport Service Data Unit 

The amount of user data whose identity is preserved from 

one end of a transport connection to the other 

TSE: Technical Support Engineer 

TSE: Terminal Server Edition 


TSE: The Semware Editor 


TTFN 

TSF: Text Services Framework 

Simple and scalable framework that enables advanced text 

input and natural language technologies for applications 


TSI: Time Slot Interchanger 

TSI: Transmission Subscriber Identification 

TSI: Transport Security Initiative 

Works in conjunction with the sysadmin and vendor 

communities to develop the knowledge and tools to combat 

the junk email problem. See http://mail-abuse.org/tsi/ 

TSID: Transmitting Subscriber IDentifier 


TSLM: Terminal Services License Manager 


TSM: Tivoli Storage Manager 

Protects data from hardware failures and other errors by 

storing backup and archive copies of data on offline 

storage (IBM) 

TSM: Topology Specific Module 

(Novell) 

TSM: Transaction Services Manager 

TSMP: True Symmetric MultiProcessor 

TSN: Task Sequence Number 

TSO: Time Sharing Option 

Multitasking system for IBM MVS operating system 


TSO/CMS: Time Sharing 

Option/Conversational Monitor System 

TSOP: Thin Small-Outline Package 

(Hardware) 

TSP: Telephony Service Provider 

TSP: Time Stamp Protocol 

(Security) 

TSP: Time Synchronization Protocol 

TSP: Total Service Provider 

TSPI: Telephony Service Provider Interface 


T-SQL: Transact Structured Query Language 


TSR: Terminate and Stay Resident 

TSS: Task State Segment 

TSS: The Screen Savers 

Technical TV show. See also 

http://www.techtv.com/screensavers/ 

TSS: Time Sharing System 


TST: TeST 


TSTN: Triple SuperTwisted Nematic 

TSV: Tab Separated Values 

TSW: TeleSoftWare 

TT: Typewriter Text 

TTA: Transport-Triggered Architecture 

TTCN: Tree and Tabular Combined Notation 

TTDS: Trusted Time Date Stamping 

TTF: TrueType Font 

File format for fonts 

TTFN: Ta Ta For Now 

That's all for now (Net lingo) 

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TTL 

TTL: Time To Live 

(Network) 

TTL: Transistor-Transistor Logic 


TTP: Thermal-Transfer Printing 

TTP: Trusted Third Parties 

TTRP: Time Token Rotation Protocol 

TTRT: Target Token Rotation Time 

TTS: Text-To-Speech 

TTS: Transaction Tracking System 

(Novell) 

TTS: Trouble Ticketing System 

TTY: TeleTYpewriter 

Historically, a Teletypewriter equipment. Today, any dumb 

terminal that can access a computer or workstation 

(Hardware) 

TTYL: Talk To You Later 

(Net lingo) 

TUC: Total User Cell 

TUCAA: The Ultimate Computer Acronyms 

Archive 

TUCD: Total User Cell Difference 

TUCOWS: The Ultimate Collection Of Winsock 

Software 

TUG: Tex Users Group 

TUI: Text-based User Interface 

TUMS: Table Update and Management System 

TUP: Telephone User Path 

TUT: Transistor Under Test 

(Hardware) 

TUT: TUTorial 


TUV: Technische Überwachungs-Verein 


TUX: Torvald's UniX 

Name of the Linux penguin. (Operating systems) 

TV: TeleVision 

(Hardware) 

TVD: Total Virus Defense 

TVF: Table of contents Verbosely from File 

TVFS: Toronto Virtual File System 

(IBM) 

TVI: TeleVision Interference 

TVO: Total Value of Ownership 

TVOL: TeleVision On-Line 

TVT: TeleVision Terminal 

(Hardware) 

TWAIN: Toolkit Without An Important Name 

Improperly expanded as shown, this term comes from 

Kipling's "The Ballad of East and West" - "...and never the 

twain shall meet...", reflecting the difficulty of connecting 

digital imaging devices (like scanners) to personal 

computers 

TWIP: TWentIeth of a Point 

Equal to 1/1440th of an inch. 

TWP: Technical Working Procedure 

TWT: Travelling Wave Tube 

(Hardware) 


TWX: TeletypeWriter eXchange service 

TX: Transmit 


TXD: Transmit Data 

TXF: Tax eXchange Format 


TXT: TeXT 


TXT2STF: TeXT To Structured Text File 

(Lotus) 

TY: Thank You 

(Net lingo) 

TYIA: Thank You In Advance 

(Net lingo) 

TYS: Told You So 

(Net lingo) 

TYVM: Thank You Very Much 

(Net lingo) 

TZ: Time Zone 

U: Unit 

Rack-mountable devices height measurement unit 

corresponding to 1.75 inches (Hardware) 

U2W: Ultra-2-Wide 

(Hardware) 

UA: Unnumbered Acknowledgement 

U 

UAWG 

UA: User Agent 

An ISO/OSI application process that acts on behalf of a 

user or organization in the X.400 message handling 

system. The UA creates, submits, and receives messages 

for you 

UA: User Area 

UAAG: User Agent Accessibility Guidelines 

W3C recommendation that provides guidelines for 

designing user agents that lower barriers to Web 

accessibility for people with disabilities (visual, hearing, 

physical, cognitive, and neurological) 

UAB: Unix Appletalk Bridge 

UAC: Universal Access Control 

UADSL: Universal Asymmetric Digital 

Subscriber Line 


UAE: Unrecoverable Application Error 

UAF: User Authorization File 

UAGL: User Agent accessibility GuideLines 

UAM: User Authentication Method 

UAN: Universal Application Network 

Standards-based, service-oriented architecture that 

enables organizations to solve the business integration 

problem within and beyond the enterprise (Software) 

UAP: Unified Approval Procedure 

UAPDU: User Agent Protocol Data Unit 

UAProf: User Agent PROFile 

UART: Universal Asynchronous 

Receiver/Transmitter 

(Hardware) 

UAS: User Application Software 

UAWG: Universal Adsl Working Group 


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U

UBA 

UBA: UniBus Adapter 

UBB: Ultimate Bulletin Board 

A message board (Software) 

UBD: User brain damage 

When a computer user does something really weird (Net 

lingo) 

UBE: Unsolicited Bulk E-mail 

UBL: Universal Business Language 

UBNI: Ungermann-Bass Network Interface 

UBR: Uddi Business Registry 

(Software) 

UBR: Universal Broadband Router 

Router used in broadband cable systems (Communication) 

UBR: Unspecified Bit Rate 

UC: UnCacheable 

Video memory access method in BIOS (Hardware) 

UCAA: Ultimate Computer Acronyms Archive 

(Remedios) 

UCAID: University Corporation for Advanced 

Internet Development 


UCB: Unit Control Block 

UCE: Unsolicited Commercial Email 

UCF: Universal Communications Facility 

(CAI) 

UCITA: Uniform Computer Information 

Transactions Act 

UCL: Universal Communications Language 

UCLP: Universal Commerce Language and 

Protocol 

UCM: Unified Change Management 

A Change Management (CM) concept implemented by 

Rational Software Corporation (Software) (Rational) 

UCR: Under Color Removal 

UCS: Unicode Conversion Support 

UCS: Universal Character Set 

UCS: User Coordinate System 

UCSD: University of California at San Diego 

UCSD: User Centered Systems Design 

A process for developing usable systems with user focus 

UCT: Universal Coordinated Time 

UDA: Universal Data Access 

(Databases) 

UDB: Universal DataBase 


UDBC: Universal DataBase Connectivity 

(Databases) 

UDC: Universal Decimal Classification 

UDC: User Defined Commands 

UDD: User Data Document 

UDDI: Universal Description, Discovery and 

Integration 

UD-DVD: Ultra Definition Digital Video (or 

Versatile) Disk 

(Hardware) 

UDE: Universal Data Exchange 

UDEC: Universal Digital Electronic Computer 


UDF: Uniqueness Database File 


UDF: Universal Disk Format 

(Hardware) 

UDF: User-Defined Function 

UDG: User Defined Gateway 

UDI: Unrestricted Digital Information 


UDM: Unstructured Data Management 

UDMA: Ultra Direct Memory Access 

(Hardware) 

UDO: Ultra Density Optical 

Optical storage technology that increases capacities by 

using an extremely focused blue laser to write and read 

data. Hewlett-Packard (HP), Sony, and Plasmon 

collaborated on the UDO standard (Hardware) (HP) 

UDO: User-Defined Object 

(Software) 

UDP: User Datagram Protocol 

It is a connectionless transport mechanism for IP 

networks (Communication) 

UDP/IP: User Datagram Protocol/Internet 

Protocol 

UDRP: Uniform domain-name Dispute 

Resolution Policy 

UDS: User Data Source 

UDT: Uniform Data Transfer 

UDT: User-defined Data Type 

UDX: Universal Data eXchange 

UDX: User-Defined Extension 

UFB: Un-F***ing-Believable 

(Net lingo) 

UID 

UFCOM: Ufficio Federale delle COMunicazioni 


UFS: Unix File System 

The default disk-based file system under the Unix 

operating system (Operating systems) 

UFST: Universal Font Scaling Technology 

UFT: Unsolicited File Transfer 

(Network) 

UG: User Group 

UHA: Ultra-High Aperture 


UHCI: Universal Host Controller Interface 

UHE: Ultra High Efficiency 

(Hardware) 

UHF: Ultra-High Frequency 

UHL: Universal Hypertext Link 

UHP: Ultra-High Performance 

(Hardware) 

UI: Unix International 

A consortium consisting of Sun, AT&T, and others that 

formed to advance a UNIX System V-based environment, 

including the Open Look GUI (Organizations) 

UI: User Interface 


UIC: User Identification Code 

UID: Unit IDentifier 

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U

UID 

UID: User IDentifier 

In the Unix operating system, the number assigned to each 

login name. The system uses UID numbers to identify, by 

number, the owners of files and directories (Operating 

systems) 

UID: User Interface Document 

UIL: User Interface Language 

UIMS: User Interface Management System 

UIN: Universal Internet Number 

UL: Underwriters Laboratories 


UL: Unordered List 

UL: UpLoad 

ULA: Uncommitted Logic Array 

ULANA: Unified Local Area Network 

Architecture 

ULC: Ultra-Light Client 

(Software) 

ULN: Universal Link Negotiation 

ulp: Unit in Last Place 

In binary formats, the least-significant bit of the 

significant, bit 0, is the unit in the last place 

ULP: Upper Layer Protocol 

ULSI: Ultra Large Scale Integration 

The process of placing more than 100,000 components on 

a chip (Hardware) 

ULV: Ultra Low Voltage 

(Hardware) 

UM: Unified Messaging 

UM: Universal Manageability 

UMA: Unified Memory Architecture 

UMA: Universal Management Agent 

UMA: Universal Measurement Architecture 

UMA: Upper Memory Area 

UMADS: Universal Measurement Architecture 

Data Storage 

UMB: Upper Memory Block 

UMC: United Microelectronics Corporation 

UME: Uni Management Entity 

UML: Unified Modeling Language 

A specification defining a graphical language for 

visualizing, specifying, constructing, and documenting the 

artifacts of distributed object systems 

UMOD: Unreal MODule 

Type of compressed files associated with Unreal 

Tournament (Games) 

UMS: Unified Messaging Server 

UMS: Universal Management Service 

(IBM) 

UMS: User Mode Scheduler 

UMTS: Universal Mobile Telecommunications 

System 


UN/EDIFACT: United Nations Electronic Data 

Interchange For Administration Commerce 

and Transport 

UN/GTDI: United Nations Guidelines for 

Trade Data Interchange 


UNC: Universal Naming Convention 

UNC: Uuencoded Netnews Collator 

UNCOL: UNiversal Computed Oriented 

Language 

URC 

UNDI: Universal Network Driver Interface 

Architectural interface to Network Interface Cards (NICs) 

that provides a hardware-dependent mechanism for the 

Preboot eXecution Environment (PXE) base code to use a 

NIC for network access without controlling the NIC 

hardware directly (Hardware) 

UNE: Unbundled Network Element 


UNEP: Unbundled NEtwork Platform 

UNI: Universal Network Interface 

UNI: User-Network Interface 

The interface between the Frame Relay 

Assembler/Disassembler (FRAD) and the service provider 


UNICODE: UNIversal CODE 

UNICOM: UNiversal Integrated COMmunication 

UNII: Unlicensed National Information 


UNIVAC: UNIVersal Automatic Computer 

UNIX: UNiplexed Information and Computing 

Service 

Modern abbreviation of UNICS. Ken Thomson and Dennis 

Ritchie, the original creators of UNIX, chose this name 

because it was a pun on MULTICS (MULTiplexed 

Information and Computing Service), the project they were 

working on when UNIX was born (Operating systems) 

UNMA: Unified Network Management 

Architecture 

UNO: United Nations Organization 


UOW: Unit Of Work 

UP: UniProcessor 

UPC: United Pan-european Communications 

Large european cable operator 

UPC: Universal Product Code 

(Hardware) 

UPC: User Parameter Control 

UPG: UPGrade 

UPI: Universal Peripheral Interface 

(Hardware) 

UPL: User Program Language 

UPM: Unix Programmer's Manual 

UPM: User Profile Management 

(IBM) 

UPN: User Principal Name 

UPnP: Universal Plug aNd Play 

UPS: Uninterruptible Power Supply 

(Hardware) 

UPS: United Parcel Service 

UR: Uncommitted Read 

(Databases) 

URA: Uniform Resource Agent 

(Network) 

URC: Uniform Resource Characteristics 

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URC 

URC: Uniform Resource Citation 

A set of attribute/value pairs describing a resource. Some 

of the values may be URIs of various kinds. Others may 

include, for example, authorship, publisher, datatype, date, 

copyright status and shoe size. 

URD: Url Rendezvous Directory 

(Network) 

UREP: Unix Rscs Emulation Protocol 

Protocol 

URI: Uniform Resource Identifier 

The generic set of all names/addresses that are short 

strings that refer to resources (specified 1994; ratified as 

Internet Draft Standard 1998). (Network) 

U-RIB: Unicast Routing Information Base 

(Network) 

URL: Uniform Resource Locator 

The set of URI schemes that have explicit instructions on 

how to access the resource on the internet. (Network) 

URN: Uniform Resource Name 

A particular scheme which is currently under development 

in the IETF, which should provide for the resolution using 

internet protocols of names which have a greater 

persistence than that currently associated with internet 

host names or organizations. (Network) 

URT: User Registration Tool 

Dynamic authorization and policy control framework that 

manages access to the LAN by partitioning user traffic 

through VLANs (Software) (Cisco) 

US: Unit Separator 

USART: Universal 

Synchronous/Asynchronous 


(Hardware) 

USB: Universal Serial Bus 

(Hardware) 

USBIF: Universal Serial Bus Implementers 

Forum 


USENET: USEr's NETwork 

USL: Unix System Laboratories 


USM: UnSharp Mask 

Used in digital photography, is a filter that first blurs the 

image (mask) and then subtract that mask from original. 

The result is optically sharper image (edges are with higher 

contrast) 

USM: User-based Security Model 

(Network) 

USN: Update Sequence Number 


USOC: Universal Service Ordering Code 

USQ: UnSQueezed 

usr: Unix System Resources 

In any unix (and variants like linux) system the /usr 

directory (Operating systems) 

USR: US Robotics 

Company 

USRT: Universal Synchronous 


(Hardware) 

USSA: User Supported Software Association 


UWR 

USSD: Unstructured Supplementary Services 

Data 

Is a means of transmitting information or instructions over 

a GSM network (Communication) 

USWC: Uncacheable Speculative Write 

Combining 

Video memory access method in BIOS (Hardware) 

UT: Universal Time 

UT: Unreal Tournament 

See http://www.unrealtournament.com/ (Games) 

UT: User Terminal 

UTC: Coordinated Universal Time 

UTF: Ucs Transformation Format 

UTI: Universal Text Interchange 

uTOK: User's Tree Of Knowledge 

UTOPIA: Universal Test and Operation 

Physical Interface for Atm 

Physical layer specification for local connectivity between 

ATM devices (Communication) 

UTP: Unshielded Twisted Pair 

(Hardware) 

UTRA: Umts Terrestrial Radio Air interface 


UTRAN: Umts Terestrial Radio Access Network 


UTS: User Too Stupid 

Dumb user with an error caused by himself (Net lingo) 

UUCP: Unix to Unix Copy Program 

A program that uses the UNIX-to-UNIX Copy Protocol 

UUCP: Unix to Unix Copy Protocol 

A protocol for communication between consenting UNIX 

systems (Network) 

UUD: Unix-To-Unix Decoding 

Obtained with UUDecode, a Unix utility that decodes data 

from 7-bit ASCII 

UUE: Unix-To-Unix Encoding 

Obtained with UUEncode, a Unix utility that encodes data 

into 7-bit ASCII 

UUENCODE: Unix-to-Unix ENCODE 

Process that encodes binary data into 7-bits ASCII 

characters. Used to exchange data across platforms, 

mainly via e-mails and newsgroup messages attachments 

UUI: User-To-User Information 

(AT&T) 

UUID: Universal Unique IDentifier 

UUO: Unimplemented User Operation 

A DEC-10 system monitor call (originally Un-Used 

Operation) (DEC) 

UUT: Unit Under Test 

(Hardware) 

UV: UltraViolet 

UW: Uncommitted Write 

(Databases) 

UWB: Ultra-Wide Band 


UWIN: Unix for WINdows 

Software that enables Unix software to be executed on a 

Windows platform (Operating systems) (AT&T) 

UWR: Ultra Wideband Radio 


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U

UXF 

UXF: Uml eXchange Format 

XML-based model interchange format for UML (Unified 

Modeling Language). UXF is a simple and well-structured 

format to encode, publish, access and exchange UML 

models, and allows UML to be highly interoperable 

UXGA: Ultra eXtended Graphics Array 

Display adapter capable of a resolution of 1600 X 1200 

pixel (Hardware) 

UY: Up Yours 

(Net lingo) 

V: Volt 

Voltage measurement unit 

V&V: Verification And Validation 

V 

V.FC: Version First Class 

Communications standard 

V/F: Voltage to Frequency converter 

(Hardware) 

V/IP: Voice over Internet Protocol 


VA: Virtual Address 

VA: Visual Age 

(IBM) 

VA: Volt-Ampere 


VAC: Volts Alternating Current 

VACM: View-based Access Control Model 

(Network) 

VACS: Vector-based Asynchronous 


VAD: Value Added Dealer 

VAD: Voice Activity Detection 

When enabled on voice port or a dial peer, silence is not 

transmitted over the network, only audible speech. The 

sound quality is slightly degraded, but the connection uses 

much less bandwidth 

VADD: Value Added Disk Driver 

VADD: VisualAge Developer Domain 


VADSL: Very-high rate Asymmetric Digital 

Subscriber Line 

VAh: Volt Ampere Hour 

Electrical energy measurement unit (Hardware) 

VAI: Video As Input 

VAIO: Video Audio Integrated Operation 


VAIO-U: Video Audio Integrated Operation- 

Ubiquitous 


VAJ: Visual Age for Java 


VAL: VALue 

VAL: Voice Application Language 

VAM: Virtual Access Method 

VAN: Value-Added Network 

(Network) 

VAN: Virtual Access Network 

(Network) 

VANDL: VANcouver Data Language 


VAP: Value Added Provider 

VAP: Value-Added Process 

VAR: Value Added Reseller 

VAR: Value Added Retailer 

VaR: Value At Risk 

(Software) 

VCC 

VAR: Value-Added Reseller 

A company that buys hardware and software, adds more 

features or services to it, then resells the upgraded product 

VAR: VARiable 

VAR: Volt-Ampere Reactive 


VAROS: VAriable Refraction Optical System 

Scanner technology (Hardware) (Canon) 

VAST: Variable Array Storage Technology 

VAT: Value Added Tax 

VAX: Virtual Address eXtension 

(Hardware) (DEC) 

VB: Variable Block 

VB: Visual Basic 

Programming language (Software) (Microsoft) 

VBA: Visual Basic for Applications 


VBE/AI: Vesa Bios Extension/Audio Interface 

VBI: Vertical Blanking Interval 

(Hardware) 

VBIDE: Visual Basic Integrated Development 

Environment 


VBIS: Value-Based Information System 

VBITS: Visual Basic Insiders' Technical 

Summit 

(Microsoft) 

VBL: Vertical Blanking Interrupt 

VBNS: Very high Bandwidth Network Service 

(Network) 

VBNS: Very high speed Backbone Network 

Service 

(Network) 

VBO: Virtual Back Office 


VBR: Variable Bit Rate 

VBRUN: Visual Basic RUNtime 

VBS: Visual Basic Script 

VBX: Visual Basic eXtension 


VC: Venture Capital 

VC: Virtual Circuit 

A logical connection between two network nodes that acts 

as though it is a direct physical connection even though it 

may physically be packet based (Network) 

VC: Virtual Container 


VC++: Visual C++ 

Development platform (Software) (Microsoft) 

VCC: Virtual Channel Connection 

(Network) 

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V

VCD 

VCD: Video Compact Disc 

(Hardware) 

VCD: Virtual Communications Driver 

VCE: Visual Composition Editor 


VCI: Virtual Channel Identifier 

A 16-bit value in the ATM cell header that provides a 

unique identifier for the virtual channel (VC) within the 

virtual path (VP) that carries that particular cell 


VCI: Virtual Circuit Identifier 

VCL: Visual Component Library 


VCM: Version and Configuration Management 

(Software) 

VCM: Version Conflict Manager 


VCM: Version Control Management 

VCM: Virtual Channel Memory 

(Hardware) 

VCN: Virtual Cluster Number 


VCOS: Virtual Computer Operating System 


VCOS: Visual Caching Operating System 

VCPI: Virtual Control Program Interface 

VCQ: Vibrant Color Quality 

(Hardware) (Matrox) 

VCR: Video Cassette Recorder 

(Hardware) 

VCR: Voluntary Content Rating 

VCS: Version Control System 

VCS: Virus Control System 

VCSEL: Vertical Cavity Side-Emitting Laser 

Used in high-bandwidth communication applications 

(Hardware) 

VDB: Virtual DataBase 

(Databases) 

VDC: Virtual Device Coordinates 

In computer graphics, a device-independent coordinate 

system that isolates the specification of view boundaries 

from device coordinates 

VDC: Volts Direct Current 

VDD: Virtual Device Driver 

VDD: Visual Database Designer 

VDDM: Virtual Device Driver Manager 

VDE: Video Display Editor 

VDE: Virtual Domain Environment 

(Network) 

VDE: Visual Development Environment 

VDI: Video Display Input 

(Hardware) 

VDI: Virtual Device Interface 

VDISK: Virtual DISK 

VDM: Virtual Dos Machine 

VDMAD: Virtual Direct Memory Access Device 

(Microsoft) 


VDN: Vector Directory Number 


VDP: Variable Data Printing 

VDS: Variable Drop Size 

Printing technology (Hardware) (NEC) 

VDS: Virtual Dedicated Server 

Specialized software platform that provides a secured 

private space for your hosted services 

VDS: Virtual Dma Services 

VDSL: Very high bit rate Digital Subscriber 

Line 


VDT: Video Dial Tone 

VDT: Video Display Terminal 

(Hardware) 

VDU: Video Display Unit 

VDWQT: Vertical Deferred Write Queue 

Threshold 

(Databases) 

VEGA: Video7 Enhanced Graphics Adapter 

VEMM: Virtual Expanded Memory Manager 

VEMMI: VErsatile MultiMedia Interface 

VENUS: Very Extensive Non-Unicast Service 

VEP: Vertical Enterprise Portal 

VER: VERify 

VER: VERsion 

VERONICA: Very Easy Rodent-Oriented 

Netwide Index to Computerized Archives 

VERP: Variable Envelope Return Paths 

VERR: VERify Read access 

VERW: VERify Write access 

VES: Video Encoding Standard 

(Oracle) 

VGE 

VESA: Video Electronics Standard Association 


VF: Virtual Floppy 

VF: Voice Frequency 

VFAT: Virtual File Allocation Table 

(Microsoft) 

VFC: Virtual FIle Cabinet 

(Software) 

VFD: Vacuum Fluorescent Display 

(Hardware) 

VFO: Virtual Front Office 


VFS: Virtual File System 


VFW: Video For Windows 

(Microsoft) 

VG: Voice Grade 


VGA: Video Graphic Array 



VGC: Video Graphics Controller 

VGE: Video Graphics Enhancer 

(Hardware) 

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V

VGI 

VGI: Visual Gateway Interface 

(Software) 

VHDCI: Very High Density Cable Interconnect 

(Hardware) 

VHDL: Vhsic Hardware Description Language 

VHDTS: Very High Density Thumb Screw 

68-pin SCSI connector with manually screwable screws 


VHF: Very High Frequency 

VHG: Virtual HyperGlossary 

VHM: Voice Health Monitor 

Helps system administrators and network managers 

determine and maintain the stability of the Voice over IP 

(VoIP) network within their enterprise by using a series of 

availability and health checks (Software) (Cisco) 

VHS: Very High Speed 

VHS: Video Home System 

VHS: Virtual Host Storage 

VHSIC: Very High Speed Integrated Circuit 

VI: Vertical Interval 

The raster lines that are precluded by a video signal 

standard from containing a picture 

VI: Video Input 

(Hardware) 

VI: Virtual Interface 

(Hardware) 

VI: Visual Interactive 

VIA: Vendors Isdn Association 


VIA: Virtual Interface Architecture 

(Network) 

VIC: Very Inexpensive Computer 

(Hardware) 

VIC: Video Interface Chip 

(Hardware) 

VIC: Virtual Image Copy 

(Databases) 

VIC: Voice Interface Card 


VID: Visual InterDev 


VIDC: VIDeo Controller 

(Hardware) 

VIE: Virtual Information Environment 

VIF: Virtual InterFace 

VIF: Virtual Interrupt Flag 

VIM: Vendor-Independent Mail 

Messaging protocol (Communication) 

VIM: Video Interface Module 

VINES: VIrtual NEtworking System 

(Network) 

VIO: Video Input/Output 

VIO: Virtual Input/Output 

VIO: Voice Input/Output 

VIP: Variable Information Processing 

VIP: Video Information Provider 

VIP: Video Interface Port 

(Hardware) 


VIP: Virtual Interrupt Pending 

VIP: Visual Interactive Parser 

ViP: VIsual Programming 

(Lotus) 

VIPER: Verifiable Integrated Processor for 

Enhanced Reliability 

VIRS: Vertical Interval Reference Signal 

VIRUS: Vital Information Resources Under 

Siege 

VIS: Video Information System 

VIS: Viewable Image Size 

(Hardware) 

VIS: Visual Instruction Set 

VIS: Voice Information System 

VIS: Volumetric Imaging System 

(Hardware) 

VITC: Vertical Interval TimeCode 

VITS: Vertical Interval Test Signal 

VLSIPS 

VIVO: Video In/Video Out 

Video card connector that captures and produces video 

signals (Hardware) (nVidia) 

VJ++: Visual J++ 

Java development platform (Software) (Microsoft) 

VKD: Virtual Keyboard Driver 

VLA: Variable Length Array 

(Software) 

VLAN: Virtual Local Area Network 

A networking architecture that allows end-systems on 

topologically disconnected subnetworks to appear to be 

connected on the same LAN. Predominately used in 

reference to ATM networking. Similar in functionality to 

bridging (Network) 

VLB: Vesa Local Bus 


VL-BUS: Vesa Local BUS 

VLC: VideoLan Client 

Highly portable multimedia player for various audio and 

video formats (MPEG-1, MPEG-2, MPEG-4, DivX, mp3, 

ogg, ...) as well as DVDs, VCDs, and various streaming 

protocols. See also http://videolan.org/vlc/ 

VLC: Volume License Customer 

VLD: Variable Length Decoder 

VLF: Very Low Frequency 

VLF: Virtual Log File 

SQL Server transaction log logical segment (Databases) 

(Microsoft) 

VLIW: Very Long Instruction Word 

VLK: Volume License Key 

VLM: Very Large Memory 


VLM: Virtual Loadable Module 


VLR: Visitor Location Register 

(Hardware) 

VLSI: Very Large Scale of Integration 

The process of placing more than 100,000 transistors on 

one chip (Hardware) 

VLSIPS: Very Large Scale Immobilized 

Polymer Synthesis 

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VLSM 

VLSM: Variable Length Subnet Masking 

(Network) 

VLT: Variable List Table 

VLV: Virtual List View 


VM: Virtual Machine 


VM: Virtual Memory 

VMA: Virtual Memory Address 

VMAC: Virtual Media Access Control 

VMB: Value-Based Management 

VMB: Virtual Machine Boot 

VMBOX: Virtual MailBOX 

VME: Versa Module Eurocard 

VME: Virtual Machine Environment 

VME: Virtual Memory Environment 

VMEBus: Versatile Modular E-BUS 


VML: Vector Markup Language 

XML application which defines a format for the encoding of 

vector information together with additional markup to 

describe how that information may be displayed and edited 

VMM: Virtual Machine Manager 


VMM: Virtual Memory Manager 

VMOS: Vertical Metal Oxide Semiconductor 

(Hardware) 

VMOS: Virtual Multitasking Operating System 


VMP: Virtual Modem Protocol 

VMS: Virtual Machine Storage 

VMS: Virtual Memory System 

(Operating systems) (DEC) 

VMS: Voice Message System 

VMT: Virtual Memory Technique 

VMTP: Versatile Message Transaction Protocol 

(Network) 

VNA: Virtual Network Architecture 

VNC: Virtual Network Computing 

A remote display system which allows you to view a 

computing 'desktop' environment not only on the machine 

where it is running, but from anywhere on the Internet and 

from a wide variety of machine architectures (AT&T) 

VNOS: Visual Network Operating System 

VNS: Virtual Network Service 

VO: Value Object 

(Software) 

VO: Video Output 

(Hardware) 

VO: Virtual Office 

VoATM: Voice Over Asynchronous Transfer 

Mode 

Enables a router to carry voice traffic over an ATM network 

(Network) 

VOB: Version Object Base 

VOC: VOiCe 

File format for audio 

VOD: Video On Demand 


VoD: Voice Over Data 

VoDSL: Voice Over Digital Subscriber Line 


VPS 

VoFR: Voice Over Frame Relay 

Enables a router to carry voice traffic over an Frame Relay 

network (Network) 

VoIP: Voice Over Internet Protocol 

A technology for transporting integrated digital voice, 

video, and data over IP networks (Network) 

VOL: VOLume 

VOLT: Visual Opentype Layout Tool 


VOM: Volt Ohm Milliampere 

(Hardware) 

VOR: Visions Of Reality 

VOS: Virtual Object System 


VOS: Voice Operating System 

VOX: Voice Operated eXchange 

Voice operated transmission in radio telecommunication. 

When the device detects voice the transmission is 

connected (Communication) 

VoxML: Voice Markup Language 

VP: Vice President 

VP: Virtual Path 

VPA: Volume Purchase Agreement 

VPBX: Virtual Private Branch eXchange 

(Hardware) 

VPD: Virtual Printer Device 

VPD: Vital Product Data 

Information about a device that is stored on the device 

itself. Typical VPD information includes a product model 

number, a unique serial number, product release level, 

maintenance level, and other information specific to the 

device type 

VPDN: Virtual Private Data Network 

VPDS: Virtual Private Data Service 

VPE: Video Port Extension 

(Hardware) 

VPE: Visual Programming Environment 

VPI: Virtual Path Indentifier 

A value in the cell header that identifies the virtual path 

(VP) to which the cell belongs. The field is 8 bits in cells 

traversing an UNI circuit and 12 bits in cells traversing 

network circuits (Communication) 

VPIM: Voice Profile for Internet Messaging 

Defines how voice messages can be encoded as 

SMTP/MIME messages for transport over Internet 

messaging networks (Communication) 

VPL: Virtual Programming Language 

VPM: Video Port Manager 

VPM: Virtual Parallel Machine 

VPM: Vulnerability and Patch Management 


VPN: Virtual Page Number 

VPN: Virtual Private Network 

A network that functions as if it were private, though it 

exists on public wires. Data is protected through 

encryption and other security mechanisms (Network) 

VPS: Voice Processing System 

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VPSC 

VPSC: Vault, Process, Structure, Configuration 

VPT: Virtual Print Technology 

VPT: Virtual Project Team 

VPU: Visual Processing Unit 

Graphics coprocessor (Hardware) 

VQ: Vector Quantization 

VQ: Video Quality 

VQF: Vector Quantization Format 

An audio codec similar to MP3 but less lossy and 

(arguably) more intelligent. See http://www.vqf.com 

(Software) 

VQP: Vlan Query Protocol 


VR: Virtual Reality 

VR: Voltage Regulator 

VRAM: Video Random Access Memory 

A type of dynamic RAM (DRAM) used in high-speed 

graphics frame buffers, providing separate buses for the 

CPU and the frame buffer logic (Hardware) 

V-RATE: Vendor Risk Assessment and Threat 

Evaluation 

(Security) 

VRC: Vertical Redundancy Check 

VRD: Virtual Retinal Display 

(Hardware) 

VRE: Voltage Regulated Extended 

VRM: Vendor Relationship Management 

VRM: Visitor Relationship Management 

VRM: Voltage Regulation Module 

(Hardware) 

VRML: Virtual Reality Modeling Language 

VROOMM: Virtual Real-time Object Oriented 

Memory Manager 

(Borland) 

VRRP: Virtual Router Redundancy Protocol 

(Network) 

VRT: Voltage Regulation Technology 

(Intel) 

VRU: Voice Response Unit 

VS: Virtual Storage 

(IBM) 

VSA: Virtual System Architecture 

VSA: Visual Studio Analyzer 

Is a tool to help you analyze performance, isolate faults, 

and understand the structure of your distributed 

applications. You can use Visual Studio Analyzer with 

applications and systems built with any of the Visual 

Studio tools (Software) (Microsoft) 

VSA: Visual Studio for Applications 

Provides a fully integrated way for customers to 

seamlessly customize and extend the functionality of Webbased 

applications using familiar tools (Software) 

(Microsoft) 

VSAM: Virtual Storage Access Method 


VSAT: Very Small Aperture Terminal 


VSB: Very Small Business 

VSB: Vestigial Sideband Modulation 



VSD: ViSio Diagram 

Filename extension (Microsoft) 

VSDT: Variable-Size Droplet Technology 

Print technology (Hardware) 

VSE: Virtual Storage Extended 

VSF: Vertical Scanning Frequency 

VSI: Virtual Socket Interface 

VSIA: Virtual Socket Interface Alliance 


VUI 

VSIMM: Video Single In line Memory Module 

A small printed circuit card that contains memory chips for 

storing video images (Hardware) 

VSIO: Virtual Serial Input Output 

VSM: Virtual Shared Memory 

VSM: Virtual Storage Management 

VSM: Visual System Management 

(IBM) 

VSN: Volume Serial Number 

VSOS: Virtual Storage Operating System 

VSP: Vertical Service Provider 

VSR: Very Short Reach 


VSS: Visual Source Safe 


VSYNC: Vertical SYNChronization 

(Hardware) 

VT: Vertical Tab 

VT: Video Terminal 

(Hardware) (DEC) 

VTAM: Virtual Table Access Method 

IBM operating system module (Operating systems) 

VTAM: Virtual Telecommunications Access 

Method 

IBM's application program to interface with 

telecommunication devices (Communication) (IBM) 

VTAS: Voice Traffic Analysis System 

(HP) 

VTF: Volunteer Task Force 

Group of individuals in the anti-spam community who have 

donated their time and expertise to assist MAPS in its 

mission. See http://mail-abuse.org/vtf/ 

VTNS: Virtual Telecommunications Network 

Service 

VTP: Vlan Trunking Protocol 

Layer 2 messaging protocol that mantains VLAN 

configuration consistency by managing the addition, 

deletion, and renaming of VLANs on a network-wide basis 


VTR: Video Tape Recorder 

(Hardware) 

VTS: Virtual Tape System 

(Hardware) 

VTS: Volume Tracking Driver 

VTX: VideoTeX 


VTY: Virtual teleTYpewriter 

Virtual terminal for remote console access. (Network) 

(Cisco) 

VUI: Visual User Interface 


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VUI 

VUI: Vocal User Interface 

VUP: Vax Unit of Performance 

VuXML: VUlnerabilities and eXposures 


Markup language designed for the documentation of 

security issues within a single package collection 

(Security) 

VVDS: Vsam Volume DataSet 


VVM: Veritas Volume Manager 

Easy-to-use, online storage management tool for 

enterprise environments, which reduces planned and 

unplanned downtime. It ensures high availability of data 

and optimized I/O performance and offers freedom of 

choice in storage hardware investments 

VVR: Veritas Volume Replicator 

Provides the foundation for seamless availability across 

sites. Based on VERITAS Volume Manager, it reliably, 

efficiently, and consistently replicates data to remote 

locations over any IP network when data loss and 

prolonged downtime cannot be tolerated 

VWB: Visual WorkBench 

(Microsoft) 

VWIC: Voice/Wan Interface Card 


VWM: Virtual Window Manager 

VXA: Variable Speed Architecture 

(Hardware) 

VxD: Virtual device Driver 


VxD: Virtual eXtended Driver 

(Microsoft) 

VxFS: Veritas File System 


VXML: Voice eXtensible Markup Language 

W: Watt 

Power measurement unit 

W 

W: Word 

Two consecutive bytes (16 bits) 

W/: With 

W/E: WhatEver 

(Net lingo) 

W/O: WithOut 

W2K: Windows 2000 


W3: World Wide Web 

W3A: World Wide Web Applets 

W3C: World Wide Web Consortium 


W3I: WinWhatWhere Investigator 

System activity monitor (Operating systems) 

W3J: World Wide Web Journal 

W4: What-Works-With-What 

WAAS: Wide Area Augmentation System 

WAB: Windows Address Book 


WABI: Windows Application Binary Interface 

WAC: Web Authorization Control 


WADT: West Australian Daylight Time 


WAE: Wireless Application Environment 

WAG: Wild A** Guess 

(Net lingo) 

WAG: Wireless Applications Group 


WAI: Web Accessibility Initiative 

WAI: Web Application Interface 

(Netscape) 

WBI 

WAIPF: Web Accessibility Initiative Protocols 

and Formats 

WAIS: Wide Area Information Server (or 

Service) 

(Network) 

WAITI: WAIT for Interrupt 

WAITS: Wide Area Information Transfer 

System 

WAL: Write Ahead Log 

WAN: Wide Area Network 

A T1, T3, broadband, or other network covering an area 

generally larger than a city or metropolitan area network 

(Network) 

WAP: Wireless Access Point 

Centrally connects wireless network nodes similar to a hub 

connecting wired PCs. (Network) 

WAP: Wireless Application Protocol 

WAPI: Workflow Application Programming 

Interface 

Workflow Management Coalition specification to enable 

interoperability between workflow management systems 

and applications (Software) 

WAR: Web ARchive 

WARIA: Workflow And Reengineering 

International Association 

The charter of the WARIA is to identify and clarify issues 

that are common to users of workflow, electronic commerce 

and those who are in the process of reengineering their 

organizations. See also http://www.waria.com/ 


WARP: Web service Aggregation, Rely and 

Propagation 

WAS: Web Application Server 

(Network) (Oracle) 

WAS: Web Application Stress 


WASP: Wireless Application Service Provider 

(Software) 

WAST: West Australian Standard Time 


WAT: West Africa Time 


WATS: Wide Area Telephone Service 

WAV: WAVeform 

File format for audio streams 

WB: Wide Band 


WB: Workbench 

Pre-PPC Amiga operating system 

WBEM: Web-Based Enterprise Management 

WBI: Web Browsing Intelligence 

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W

WBMP 

WBMP: Wireless BitMaP 

File Format for bitmapped images suitable for WAP devices 

WBS: Work Breakdown Structure 

WBT: Web-Based Training 

WBTS: Windows-Based Terminal Server 

WBXML: Wap Binary eXtensible Markup 

Language 

WC: Word Count 

WC: World Coordinates 

The coordinate system that is scaled so that user-defined 

objects can be represented in units appropriate to the 

application, such as inches, meters, and miles 

WCA: Web Clipping Application 

WCAG: Web Content Accessibility Guidelines 

These guidelines explain how to make Web content 

accessible to people with disabilities. The guidelines are 

intended for all Web content developers and for developers 

of authoring tools. The primary goal of these guidelines is 

to promote accessibility 

WCCP: Web Cache Communications Protocol 


WCDMA: Wideband Code Division Multiple 

Access 

W-CDMA: Wideband Code Division Multiple 

Access 


WCGL: Web Content accessibility GuideLines 

WCI: Web-based Customer Interaction 

WCM: Web Content Management 

WCS: Web Communications Server 

(Hardware) 

WCS: World Coordinate System 

WCSS: Wap Cascading Style Sheets 

WCTL: Web Crossing Template Language 

WD: Western Digital 

(Hardware) 

WD: Working Draft 

WDA: Web-Disabled Application 

WDATAM: What Do All The Acronyms Mean 

(Net lingo) 

WDDX: Web Distributed Data eXchange 

XML-based technology that enables the exchange of 

complex data between Web programming languages, 

creating what some refer to as 'Web syndicate networks' 

WDF: Windows Driver Foundation 

Strategy for the next generation of Windows drivers. WDF 

defines a single driver model that supports the creation of 

object-oriented, event-driven drivers for either kernel 

mode or user mode (Operating systems) (Microsoft) 

WDG: Web Design Group 


WDJ: Web Developer's Journal 

WDL: Windows Driver Library 


WDM: Wavelength-Division Multiplexing 

A mechanism to allow multiple signals to be encoded into 

multiple wavelengths (Communication) 

WDM: Windows Driver Model 


WDP: Wireless Datagram Protocol 


WDRAM: Windows Dynamic Random Access 

Memory 

WDS: Wireless Distribution System 


WDT: Wap Developer's Toolkit 

(Software) 

WDU: Windows Desktop Update 


WE: Write Enable 

(Hardware) 

WEA: Web-Enabled Application 

WebDAV: WEB Distributed Authoring and 

Versioning 

Extension of the HTTP/1.1 protocol to allow clients to 

publish, lock, and manage resources on the Web 

WebNFS: WEB Network File System 


WFP 

WEC: Web Extender Client 

Microsoft Office 2000 protocol that is used for Web 

publishing, and is usually implemented through the use of 

Microsoft FrontPage Server Extensions (Microsoft) 

WECA: Wireless Ethernet Compatibility 

Alliance 


WEDT: Western Europe Daylight Time 


WEFT: Web Embedding Fonts Tool 


WELL: Whole Earth eLectronic Link 

WEMA: Western Electronics Manufacturers 

Association 


WEO: World Economic Outlook 

WEP: Watchguard Event Processor 

WEP: Windows Entertainment Pack 


WEP: Windows Entry Point 

(Software) 

WEP: Wired Equivalent Privacy 

Lower level data encryption for wireless security (Network) 

WEP: Wireless Encryption Protocol 

(Network) 

WER: Windows Error Reporting 


WEST: Western Europe Standard Time 


WFC: Windows Foundation Classes 


WfM: Wired For Management 

WFM: Works For Me 

(Net lingo) 

WfMC: WorkFlow Management Coalition 

Non-profit, international organization of workflow vendors, 

users, analysts and university/research groups. See also 

http://www.wfmc.org/ (Organizations) 

WFP: Windows File Protection 

Feature which prevents the replacement of essential 

system files installed as part of Windows 2000 (Operating 


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WFQ 

WFQ: Weighted Fair Queuing 

Per-flow packet scheduling in network elements that 

automatically categorizes traffic flows into high and low 

priority, based on volume of packets seen by a router or 

switch (Network) 

WfW: Windows For Workgroups 

(Microsoft) 

WG: Working Group 

WGA: Windows Genuine Advantage 

Part of Microsoft’s on-going effort to protect its customers 

and partners from counterfeit software, is a program that 

increases customer awareness of the value of genuine 

Windows XP (Microsoft) 

WGPO: WorkGroup PostOffice 

WGS: WorkGroup System 

WH2FO: Word Html To Formatting Objects 

Java application that processes an HTML output, created 

with Word 2000, and transforms it into an XML content file 

and an XSL stylesheet file. From these files, a standard 

XSLT processor may be used to obtain a file containing 

only XSL-FO markup (Software) 

WHAM: Waveform Hold And Modify 

(Microsoft) 

WHC: Workstation Host Connection 

WHISPER: Windows Highly Intelligent SPEech 

Recognition 

(Microsoft) 

WHQL: Windows Hardware Quality Labs 

WIA: Windows Image Acquisition 

Standardized API for acquiring digital images from devices 

that are primarily used to capture still images and for 

managing these devices (Operating systems) (Microsoft) 

WIC: Wan Interface Card 


WIC: Whole Internet Catalogue 

WICD: Web Integration Compound Document 

Device independent foundation for Compound Document 

profiles based on XHTML, CSS and SVG 

WIDL: Web Interface Definition Language 

WIF: Wavelet Image File 


Wi-Fi: WIreless FIdelity 

IEEE 802.11 standard (Network) 

WIM: Windows Image Format 

Used by the SMS 2003 Operating System Deployment 

Feature Pack (Software) (Microsoft) 

WiMAX: Worldwide Interoperability 

Microwave Access 

IEEE 802.16 broadband wireless access standard 

WIMP: Windows, Icons, Menus and Pointing 

devices 

WIN: Wireless Information Network 

WINA: Wap Interim Naming Authority 

WINE: Wine Is Not an Emulator 

Windows Emulator for Unix platforms (Operating systems) 

WINForum: Wireless Information Networks 

FORUM 

WinHEC: WINdows Hardware Engineering 

Conference 

WINS: Windows Internet Name Service 



WINSOCK: WINdows SOCKets 


WMI 

Wintel: WINdows/inTEL 

System based on Intel Processors and Microsoft Windows 

operating system 

WIRE: Web/Internet Resource Executive 

WIS: Wan Interface Sublayer 

(Network) 

WIS: Windows Installer Service 


WISC: Writeable Instruction Set Computer 

(Hardware) 

WISE: Web-Integrated Software metrics 

Environment 

(Network) 

WISE: Wordperfect Information System 

Environment 

WISP: Wireless Internet Service Provider 

(Network) 

WIT: Web Interactive Talk 

WKB: WorKBook 


WKS: WorKSheet 

File name extension (Lotus) 

WL: Word Line 

WLAN: Wireless Local Area Network 

(Network) 

WLBS: Windows Load Balancing Service 


WLE: WebLogic Enterprise 

WLG: dr. Watson LoG 

Filename extension (Microsoft) 

WLL: Wireless Local Loop 


WLM: Work Load Manager 

WLS: WebLogic Server 

WM: Windows Messenger 


WM: Workstation Manager 

(Novell) 

WMA: Windows Media Audio 

(Microsoft) 

WMC: Workflow Management Coalition 

WME: Windows Media Encoder 

(Microsoft) 

WMF: Windows Metafile Format 

File format for graphics (Microsoft) 

WMF: Wireless Multimedia Forum 

WMFSDK: Windows Metafile Format Software 

Development Kit 

(Microsoft) 

WMI: Windows Management Instrumentation 

Microsoft's implementation of Web-Based Enterprise 

Management (WBEM), which is an industry initiative to 

develop a standard technology for accessing management 

information in an enterprise environment (Operating 


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WML 

WML: Website Meta Language 

Free and extensible Webdesigner's off-line HTML 

generation toolkit for Unix, distributed under the GNU 

General Public License. See also http://thewml.org/ 

WML: Wireless Markup Language 

WMLS: Wireless Markup Language Script 

WMP: Windows Media Player 


WMRM: Write Many, Read Many 

(Hardware) 

WMT: Windows Media Technology 


WMV: Windows Media Video 

(Microsoft) 

WNIC: Wide-area Network Interface 

Coprocessor 

WNILS: Whois and Network Information 

Lookup Service 

(Network) 

WNIM: Wide-area Network Interface Module 

WNT: Windows New Technology 

Early acronym for NT, based on incrementing each letter of 

VMS (the original NT designers came from DEC) in the 

same way 2001's HAL came from "IBM" (Operating 


WOF: Web Objects Framework 

(Network) 

WOL: Wake On Lan 

(Hardware) 

WOLF: Web Objects for Legacy Functions 

(Software) 

WOM: Wake On Modem 

(Network) 

WOM: Write-Only Memory 

(Hardware) 

WOOF: Web-centric Open Object Framework 

WOR: Wake On Ring 

(Network) 

WORM: Write Once Read Many 

(Hardware) 

WOS: Workstation Operating System 

WOSA: Windows Open Systems Architecture 


WOW: Windows on Win32 


WOW: WithOut Worry 

(Hardware) (Xerox) 

WP: Word Processor 

WP: WordPerfect 

(Software) (Corel) 

WP: Write Protected 

WPA: Wi-fi Protected Access 

Designed to improve security over the older WEP 

encryption methods (Security) 

WPA: Windows Product Activation 


WPAN: Wireless Personal Area Network 

(Network) 

WPD: Windows Printer Description 



WPD: WordPerfect Document 

File format for documents (Corel) 

WPG: WordPerfect Graphics 


WPHD: Write-Protected Hard Disk 

WPM: WordPerfect Macro 


wpm: Words Per Minute 

Speech recognition processing power (Software) 

WPOS: WorkPlace Operating System 

WSDD 

WPP: Web Presence Provider 

Web site design, development, and deployment company 

WPS: Windows Printing System 

(Microsoft) 

WPS: WorkPlace Shell 

(IBM) 

WPVM: Windows Parallel Virtual Machine 

WPW: Web Publishing Wizard 


WPW: WordPerfect for Windows 

(Software) 

WQL: Wmi Query Language 


WRAM: Window Random Access Memory 

(Hardware) 

WRDS: Wharton Research Data Service 

WRED: Weighted Random Early Detection 

Combines IP precedence and Random Early Detection 

capabilities to provide differentiated performance 

characteristics for different classes of service (Network) 

WRI: WRIte 


WRK: Windows Resource Kit 

(Microsoft) 

WRT: With Regards To 

(Net lingo) 

WS: Web Services 

Web-based enterprise applications that use open, XMLbased 

standards and transport protocols to exchange data 

with calling clients. Also used to prefix web services 

interoperability applications or standards (Software) 

WS: WordStar 

WS: WorkSpace 

WS: WorkStation 

WSAD: Websphere Studio Application 

Developer 


WSAPI: Web Site Application Programming 

Interface 

(O'Reilly & Associates) 

WSC: Windows Script Component 


WS-CDL: Web Services Choreography 

Description Language 

XML-based language that describes peer-to-peer 

collaborations of Web Services participants by defining 

their common and complementary observable behavior; 

where ordered message exchanges result in accomplishing 

a common business goal 

WSDD: Web Service Deployment Descriptor 

(Software) 

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WSDL 

WSDL: Web Service Description Language 

An XML format for describing network services as a set of 

endpoints operating on messages containing either 

document-oriented or procedure-oriented information 

WSDP: Web Services Developer Pack 

The Java Web Services Developer Pack is an all-in-one 

download containing key technologies to simplify building 

of web services using the Java 2 Platform (Software) (Sun) 

WSE: Web Services Enhancements 

Add-on to Microsoft Visual Studio .NET and the Microsoft 

.NET Framework providing developers the latest advanced 

Web services capabilities to keep pace with the evolving 

Web services protocol specifications (Software) (Microsoft) 

WSF: Windows Script File 


WSH: Windows Script Host 

(Microsoft) 

WS-I: Web Services Interoperability 

See http://www.ws-i.org (Organizations) 

WSIF: Web Services Invocation Framework 

Simple Java API for invoking Web services, no matter how 

or where the services are provided (Software) 

WSIL: Web Services Inspection Language 

Provides an XML format for assisting in the inspection of a 

site for available services and a set of rules for how 

inspection related information should be made available for 

consumption (Software) 

WSIL4J: Web Services Inspection Language 

For Java 

Java class library that provides an API that is can be used 

to locate and process WS-Inspection documents (Software) 

WSJ: Web Services Journal 

WSML: Web Services Markup Language 

WSP: Web Standards Project 

Collective effort of web developers and end users whose 

mission is to stop the fragmentation of the web, by 

persuading the browser makers that common standards are 

in everyone's best interest 

WSP: Wireless Session Protocol 

WSRP: Web Services for Remote Portlets 

Standard that will allow for the "plug-n-play" of portals, 

other intermediary web applications that aggregate 

content, and applications from disparate sources (Software) 

WSRP4J: Web Services for Remote Portlets 

For Java 

Apache's java implementation of WSRP. See also 

http://ws.apache.org/wsrp4j/ (Software) 

WSTK: Web Services ToolKit 


WSUI: Web Service User Interface 

WSVT: Web Service Validation Tools 

Project that provides a set of Eclipse plugins to validate 

and analyze Web services with respect to the core Web 

services specifications and their usage together (Software) 

WSXGA: Wide Super eXtended Graphics Array 



WT: Write Through 

WTA: Wireless Telephony Application 

WTAI: Wireless Telephony Application 

Interface 

(Software) 

WTD: Week To Date 



WTF: What The F**k 

(Net lingo) 

WTG: Way To Go 

(Net lingo) 

WTK: Wireless ToolKit 

(Software) 

WTL: Windows Template Library 

Library for developing Windows applications and UI 

components. It extends ATL (Active Template Library) and 

provides a set of classes for controls, dialogs, frame 

windows, GDI objects, and more (Software) (Microsoft) 

WTLS: Wireless Transport Layer Security 

WTO: World Trade Organization 


WTP: Wireless Transport Protocol 

WTS: Web Transaction Security 

(Security) 

WTS: Windows Terminal Server 

(Microsoft) 

WTX: Workstation Technology eXtended 

A size (max 16.75"x14" -- 425mm x 356mm, LxW) and 

form factor specification for motherboards. See also 

http://www.wtx.org (Hardware) 

WUI: Web User Interface 

(Network) 

WUM: Wind Up Merchant 

Someone who posts messages on boards specifically to 

wind up other users (Net lingo) 

WUS: Windows Update Services 

An evolution of SUS, WUS is the update management 

component of Windows Server (Software) (Microsoft) 

WUXGA: Wide Ultra eXtended Graphics Array 



WV: Working Voltage 

(Hardware) 

WVGA: Wide Video Graphic Array 



WWD: Wireless Web Display 

WWDC: WorldWide Developers Conference 

(Apple) 

WWIS: World Wide Information System 

WWW: World Wide Web 

The web of systems and the data in them that is the 

Internet (Network) 

WXGA: Wide eXtended Graphics Array 



WYP: What's Your Problem? 

(Net lingo) 

WYSBYGI: What You See Before You Get It 

WYSIWYG: What You See Is What You Get 

WZC: Wireless Zero Configuration 


X: X windows 

A windowing system developed by MIT (Operating 

systems) 

X 

X 

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X

X2B 

X2B: heXadecimal To Binary 

(IBM) 

X2C: heXadecimal To Character 

(IBM) 

X2D: heXadecimal To Decimal 

(IBM) 

XA: eXtended Architecture 

XA: eXtended Attribute 

X-ACT: Xml Active Content Technologies 

XAPIA: X.400 Application Programming 

Interface Association 


XBL: Xml Binding Language 

Markup language for describing bindings that can be 

attached to elements in other documents. Bindings can be 

attached to elements using either cascading stylesheets 

(CSS) or the document object model (DOM) 

XBM: X BitMap 

File format for bitmapped images 

XBRL: eXtensible Business Reporting 

Language 

XCBF: Xml Common Biometric Format 

XCHG: ExCHanGe 

XCMD: eXternal CoMmanD 


XCP: eXtended Copy Protection 

Rootkit-based copy protection scheme 

XDE: eXtended Development Experience 

As in Rational Software's XDE product (Software) 

(Rational) 

XDF: Extended Density Format 

(IBM) 

XDK: Xbox Development Kit 


XDK: Xml Development Kit 

(Software) 

XDM: X Display Manager 

A program supplied with the OpenWindows interface that 

manages X displays 

XDR: eXternal Data Representation 

A standard for machine-independent data structures 

developed by Sun (Sun) 

XDR: Xml Data Reduced 

XFCN: eXternal FunCtioN 

XFDL: eXtensible Forms Description Language 

XGA: eXtended Graphics Array 



XGMML: eXtensible Graph Markup and 

Modeling Language 

XML application based on GML which is used for graph 

description. XGMML uses tags to describe nodes and 

edges of a graph. The purpose of XGMML is to make 

possible the exchange of graphs between differents 

authoring and browsing tools for graphs 

XHTML: eXtensible HyperText Markup 

Language 

(Software) 

XID: eXchange IDentifier 

XIF: eXternal Interface File 

XIF: Xml Interchange Format 


XIFF: eXtended Image File Format 


XIL: X Imaging Library 

The XIL is a platform programming interface for imaging 

and video support (Operating systems) 

XIOS: eXtended Input/Output System 

XIP: eXecute-In-Place 

XIS: eXtensible Information Server 

XKMS: Xml Key Management Specification 

(Security) 

XL: eXtended Length 

(Hardware) 

XLA: eXceL Add-In 


XLAT: TransLATe 

XLF: ExceptionaL Fortran 

(IBM) 

XLF: eXtensible Log Format 

XLK: eXceL bacKup 


XLL: eXtensible Linking Language 

XLM: eXceL Macro 


XLS: eXceL Spreadsheet 

File name extension (Software) (Microsoft) 

XLT: eXceL Template 


XLW: eXceL Workbook 

File name extension (Software) (Microsoft) 

XMA: eXtended Middleware Architecture 

(Software) 

XMI: Xml Metadata Interchange 

A specification enabling easy interchange of metadata 

between modeling tools (based on the OMG-UML) and 

metadata repositories (OMG-MOF based) in distributed 

heterogeneous environments 

XMIT: TransMIT 

XML: eXtensible Markup Language 

XMPP 

XMLC: eXtensible Markup Language Compiler 

Converts a HTML or XML document to a Java class 

XMLDSIG: eXtensible Markup Language 

Digital SIGnature 

(Security) 

XMLP: eXtensible Markup Language Protocol 

XML-QL: eXtensible Markup Language-Query 

Language 

XMM: eXtended Memory Manager 

XMML: eXploration and Mining Markup 

Language 

Superset of XML, specific to exploration and mining. 

XMP: eXtensible Metadata Platform 

Provides Adobe applications and workflow partners with a 

common XML framework that standardizes the creation, 

processing, and interchange of document metadata across 

publishing workflows (Software) (Adobe) 

XMPP: eXtensible Messaging and Presence 

Protocol 

IETF's formalization of the core protocols created by the 

Jabber community in 1999. See also http://www.xmpp.org/ 

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X

XMS 

XMS: eXtended Memory Specification 


XMSG: Xml MeSsaGing 

XNI: Xerces Native Interface 

Framework for communicating a "streaming" document 

information set and constructing generic parser 

configurations. See also http://xml.apache.org 

XNRL: Xml Namespace Related-resource 

Language 

HTML-based markup language designed to contain a 

human-readable description of an XML namespace as well 

as pointers to multiple resources related to that namespace 

XNS: Xerox Network Services 

(Network) 

XOFF: Transmitter OFF 

XON: Transmitter ON 

XOP: Xml-binary Optimized Packaging. 

A mean of more efficiently serializing XML Infosets (see 

[XMLInfoSet]) that have certain types of content 

XOR: eXclusive OR 

XP: Cross Platform 

XP: eXPerience 


XP: eXtreme Performance 

(Hardware) (Compaq) 

XP: eXtreme Programming 

(Software) 

XPCOM: Cross Platform Component Object 

Model 

(Software) 

XPE: eXPerience Embedded 


XPFE: Cross Platform Front End 

XPG: X/open Portability Guide 


XPIDL: Cross Platform Interface Definition 

Language 

(Software) 

XPM: X PixMap 

File format for bitmapped images 

XPRM: Xerox Print Resources Manager 

(Xerox) 

XPS: Xml Paper Specification 

Paginated representation of electronic paper described in 

an XML-based format (Microsoft) 

XQL: eXtensible Query Language 

XR: eXternal Reset 

(Hardware) 

XRC: eXtended Remote Copy 

XRCC: Xerox Research Centre of Canada 

(Organizations) (Xerox) 

XRF: eXtended Recovery Facility 

(IBM) 

XRNS: eXtensible Resource Name System 

XRT: eXtensions for Real-Time 

XSD: Xml Schema Definition 

XML-based grammar for describing the structure of XML 

documents. A schema-aware validating parser can validate 

an XML document against an XSD schema and report any 

discrepancies 


XSL: eXtensible Style Language 

XSLT: eXtensible Stylesheet Language 

Transformation 

YIM 

XSLTC: eXtensible Stylesheet Language 

Transformation Compiler 

Provides a compiler to compile an XSL stylesheet into a 

translet (a set of Java classes) and a runtime processor to 

apply the translet to an XML document and perform a 

transformation (Software) 

XSMD: eXtended Storage Module Drive 

XSP: eXtensible Server Pages 

xSP: eXternal Service Provider 

Seller of services to other companies 

XSS: Cross-Site Scripting 

(Software) 

XSSI: eXtended Server Side Includes 

XST: Cross-Site Tracing 

XT: eXtended Technology 

(IBM) 

XTAL: CrysTAL 

XTCLK: eXternal Transmit CLocK 

XTLA: eXtended Three Letters Acronym 

XTM: Xml Topic Map 

XTND: Xml Transition Network Definition 

XTR: Efficient Compact Subgroup Trace 

Representation 

A crypto system that is a particularly efficient and 

compact implementation of the classical Diffie-Hellman 

scheme. See http://www.ecstr.com (Security) 

XUL: Xml-based User interface Language 

XVGA: eXtended Video Graphics Array 

Display standard (Hardware) 

XWB: eXtend WorkBench 

Java Integrated Development Environment (IDE) (Software) 

XWD: X Window Dump 

Y2K: Year 2000 

YACC: Yet Another Compiler Compiler 

Unix program (Operating systems) 

YAHOO: Yet Another Hierarchically Officious 

Oracle 

YAHU: Yet Another Header Utility 

Utilities for peeking into executables headers (Software) 

YAI: Yet Another Isp 

Y 

YAM: Yet Another Modem 

YAST: Yet Another Setup Tool 

YATE: Yet Another Terminal Emulator 

(Software) 

YB: YottaByte 

1024 zetabytes 

YDT: Yukon Daylight Time 


YHBW: You Have Been Warned 

(Net lingo) 

YIM: Yahoo! Instant Messenger 

(Software) 

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X 

Y

YMMV 

YMMV: Your Mileage May Vary 

(Net lingo) 

YST: Yukon Standard Time 


YTD: Year To Date 


YW: You're Welcome 

(Net lingo) 

ZAC: Zero Administration Client 

ZAI: Zero Administration Initiative 

Z 

ZAK: Zero Administration Kit 

(Microsoft) 

ZAW: Zero Administration for Windows 

(Microsoft) 

ZB: ZetaByte 

1024 exabytes 

ZBR: Zero Bug Release 

Point in the software development at which all features are 

correctly implemented and have no bugs logged against 

them (Software) 

ZBR: Zone-Bit Recording 

ZCAV: Zone Constant Angular Velocity 

(Hardware) 

Z-CAV: Zoned Constant Angular Velocity 

ZD: Ziff-Davis 

ZDBOp: Ziff-Davis Benchmark OPeration 

ZDL: Zero Delay Lockout 

ZDMI: Ziff-Davis Market Intelligence 

ZDS: Zenith Data Systems 

ZDTV: Ziff-Davis TeleVision 

ZEN: Zero Effort Networking 

(Novell) 

ZIF: Zero Insertion Force 

(Hardware) 

ZIP: Zigzag Inline Package 

(Hardware) 

ZIP: Zone Improvement Plan 

Postal code 

ZLR: Zoom Lens Reflex 

(Hardware) 

ZNA: Zero Network Administration 

(Network) 

ZOPE: Z Object Publishing Environment 

ZPV: Zoomed Port Video 

ZSL: Zero Slot Lan 

ZV: Zoomed Video 


ZV 

Page 167 of 167 

Y 

Z

The Ultimate Computer Acronyms Archive - Allserv WiKi

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