List of computing and IT abbreviations

From Wikipedia, the free encyclopedia

This is a list of computing and IT acronyms and abbreviations.

Contents

·         A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

 

0–9[edit]

·         /.—Slashdot

·         1GL—First-Generation Programming Language

·         1NF—First Normal Form

·         10B2—10BASE-2

·         10B5—10BASE-5

·         10B-F—10BASE-F

·         10B-FB—10BASE-FB

·         10B-FL—10BASE-FL

·         10B-FP—10BASE-FP

·         10B-T—10BASE-T

·         100B-FX—100BASE-FX

·         100B-T—100BASE-T

·         100B-TX—100BASE-TX

·         100BVG—100BASE-VG

·          

·         286—Intel 80286 processor

·         2B1Q—2 Binary 1 Quaternary

·         2GL—Second-Generation Programming Language

·         2NF—Second Normal Form

·         3GL—Third-Generation Programming Language

·         3GPPmobile broadband "3G" Partnership Project

·         3NF—Third Normal Form

·         386—Intel 80386 processor

·         486—Intel 80486 processor

·         4B5BLF—4 Byte 5 Byte Local Fiber

·         4GL—Fourth-Generation Programming Language

·         4NF—Fourth Normal Form

·         5GL—Fifth-Generation Programming Language

·         5NF—Fifth Normal Form

·         6NF—Sixth Normal Form

·         8B10BLF—8 Byte 10 Byte Local Fiber

A[edit]

·         AAA—Authentication Authorization, Accounting

·         AABB—Axis Aligned Bounding Box

·         AAC—Advanced Audio Coding

·         AAL—ATM Adaptation Layer

·         AALC—ATM Adaptation Layer Connection

·         AARP—AppleTalk Address Resolution Protocol

·         ABAC—Attribute-Based Access Control

·         ABCL—Actor-Based Concurrent Language

·         ABI—Application Binary Interface

·         ABM—Asynchronous Balanced Mode

·         ABR—Area Border Router

·         ABR—Auto Baud-Rate detection

·         ABR—Available Bitrate

·         ABR—Average Bitrate

·         AC—Acoustic Coupler

·         AC—Alternating Current

·         ACD—Automatic Call Distributor

·         ACE—Advanced Computing Environment

·         ACID—Atomicity Consistency Isolation Durability

·         ACKACKnowledgement

·         ACK—Amsterdam Compiler Kit

·         ACL—Access Control List

·         ACL—Active Current Loop

·         ACM—Association for Computing Machinery

·         ACME—Automated Classification of Medical Entities

·         ACP—Airline Control Program

·         ACPI—Advanced Configuration and Power Interface

·         ACR—Allowed Cell Rate

·         ACR—Attenuation to Crosstalk Ratio

·         AD—Active Directory

·         AD—Administrative Domain

·         ADC—Analog-to-Digital Converter

·         ADC—Apple Display Connector

·         ADB—Apple Desktop Bus

·         ADCCP—Advanced Data Communications Control Procedures

·         ADO—ActiveX Data Objects

·         ADSL—Asymmetric Digital Subscriber Line

·         ADT—Abstract Data Type

·         AE—Adaptive Equalizer

·         AES—Advanced Encryption Standard

·         AF—Anisotropic Filtering

·         AFP—Apple Filing Protocol

·         AGP—Accelerated Graphics Port

·         AH—Active Hub

·         AI—Artificial Intelligence

·         AIX—Advanced Interactive eXecutive

·         Ajax—Asynchronous JavaScript and XML

·         AL—Active Link

·         AL—Access List

·         ALAC—Apple Lossless Audio Codec

·         ALGOL—Algorithmic Language

·         ALSA—Advanced Linux Sound Architecture

·         ALU—Arithmetic and Logical Unit

·         AM—Access Method

·         AM—Active Matrix

·         AMOLED—Active-Matrix Organic Light-Emitting Diode

·         AM—Active Monitor

·         AM—Allied Mastercomputer

·         AM—Amplitude Modulation

·         AMD—Advanced Micro Devices

·         AMQP—Advanced Message Queuing Protocol

·         AMR—Audio Modem Riser

·         ANN—Artificial Neural Network

·         ANSI—American National Standards Institute

·         ANT—Another Neat Tool

·         AoE—ATA over Ethernet

·         AOP—Aspect-Oriented Programming

·         APCI—Application-Layer Protocol Control Information

·         API—Application Programming Interface

·         APIC—Advanced Programmable Interrupt Controller

·         APIPA—Automatic Private IP Addressing

·         APL—A Programming Language

·         APR—Apache Portable Runtime

·         ARC—Adaptive Replacement Cache

·         ARC—Advanced RISC Computing

·         ARIN—American Registry for Internet Numbers

·         ARM—Advanced RISC Machines

·         AROS—AROS Research Operating System

·         ARP—Address Resolution Protocol

·         ARPA—Address and Routing Parameter Area

·         ARPA—Advanced Research Projects Agency

·         ARPANET—Advanced Research Projects Agency Network

·         AS—Access Server

·         ASCII—American Standard Code for Information Interchange

·         ASET—Automated Security Enhancement Tool

·         ASG—Abstract Semantic Graph

·         ASIC—Application-Specific Integrated Circuit

·         ASIMO—Advanced Step in Innovative Mobility

·         ASLR—Address Space Layout Randomization

·         ASM—Algorithmic State Machine

·         ASMP—Asymmetric Multiprocessing

·         ASN.1—Abstract Syntax Notation 1

·         ASP—Active Server Pages

·         ASP—Application Service Provider

·         ASR—Asynchronous Signal Routine

·         AST—Abstract Syntax Tree

·         ASSP—Application-Specific Standard Product

·         AT—Advanced Technology

·         AT—Access Time

·         AT—Active Terminator

·         ATA—Advanced Technology Attachment

·         ATAG—Authoring Tool Accessibility Guidelines

·         ATAPI—Advanced Technology Attachment Packet Interface

·         ATM—Asynchronous Transfer Mode

·         AVC—Advanced Video Coding

·         AVI—Audio Video Interleaved

·         AWKAho Weinberger Kernighan

·         AWT—Abstract Window Toolkit

B[edit]

·         B2B—Business-to-Business

·         B2C—Business-to-Consumer

·         BAL—Basic Assembly Language

·         BAM—Block Availability Map

·         Bash—Bourne-again shell

·         BASIC—Beginner's All-Purpose Symbolic Instruction Code

·         BBP—Baseband Processor

·         BBS—Bulletin Board System

·         BCD—Binary Coded Decimal

·         BCNF—Boyce–Codd normal form

·         BEEP—Blocks Extensible Exchange Protocol

·         BER—Bit Error Rate

·         BFD—Bidirectional Forwarding Detection

·         BFD—Binary File Descriptor

·         BFS—Breadth-First Search

·         BFT—Byzantine Fault Tolerant

·         BGP—Border Gateway Protocol

·         BI—Business Intelligence

·         BiDi—Bi-Directional

·         bin—binary

·         BINAC—Binary Automatic Computer

·         BIND—Berkeley Internet Name Domain

·         BIOS—Basic Input Output System

·         BJT—Bipolar Junction Transistor

·         bit—binary digit

·         Blob—Binary large object

·         Blog—Web Log

·         BMP—Basic Multilingual Plane

·         BNC—Bayonet Neill-Concelman

·         BOINC—Berkeley Open Infrastructure for Network Computing

·         BOM—Byte Order Mark

·         BOOTP—Bootstrap Protocol

·         BPDU—Bridge Protocol Data Unit

·         BPEL—Business Process Execution Language

·         BPL—Broadband over Power Lines

·         BPM—Business Process Management

·         BPM—Business Process Modeling

·         bps—bits per second

·         BRM—Business Reference Model

·         BRMS—Business Rule Management System

·         BRR—Business Readiness Rating

·         BSA—Business Software Alliance

·         BSB—Backside Bus

·         BSD—Berkeley Software Distribution

·         BSoD—Blue Screen of Death

·         BSS—Block Started by Symbol

·         BTBitTorrent

·         BT—Bluetooth

·         B TAM—Basic Telecommunications Access Method

·         BW—Bandwidth

·         BYOD—Bring Your Own Device

C[edit]

·         CA—Computer architecture

·         CAD—Computer-Aided Design

·         CAE—Computer-Aided Engineering

·         CAID—Computer-Aided Industrial Design

·         CAI—Computer-Aided Instruction

·         CAM—Computer-Aided Manufacturing

·         CAPTCHA—Completely Automated Public Turing Test to tell Computers and Humans Apart

·         CAT—Computer-Aided Translation

·         CAQ—Computer-Aided Quality Assurance

·         CASE—Computer-Aided Software Engineering

·         cc—C Compiler

·         CD—Compact Disc

·         CDE—Common Desktop Environment

·         CDMA—Code Division Multiple Access

·         CDN—Content Delivery Network

·         CDP—Continuous Data Protection

·         CD-R—CD-Recordable

·         CD-ROM—CD Read-Only Memory

·         CD-RW—CD-Rewritable

·         CDSA—Common Data Security Architecture

·         CERT—Computer Emergency Response Team

·         CES—Consumer Electronics Show

·         CF—Compact Flash

·         CFD—Computational Fluid Dynamics

·         CFG—Context-Free Grammar

·         CFG—Control Flow Graph

·         CG—Computer Graphics

·         CGA—Color Graphics Array

·         CGI—Common Gateway Interface

·         CGI—Computer-Generated Imagery

·         CGT—Computational Graph Theory

·         CHAP—Challenge-Handshake Authentication Protocol

·         CHS—Cylinder-Head-Sector

·         CIDR—Classless Inter-Domain Routing

·         CIFS—Common Internet Filesystem

·         CIM—Common Information Model

·         CIM—Computationally Independent Model

·         CIO—Chief Information Officer

·         CIR—Committed information rate

·         CISC—Complex Instruction Set Computer

·         CJK—Chinese, Japanese, and Korean

·         CJKV—Chinese, Japanese, Korean, and Vietnamese

·         CLI—Command Line Interface

·         CLR—Common Language Runtime

·         CM—Configuration Management

·         CM—Content Management

·         CMMI—Capability Maturity Model Integration

·         CMOS—Complementary Metal-Oxide Semiconductor

·         CMS—Content Management System

·         CN—Canonical Name

·         CN—Common Name

·         CNC—Computer Numerical Control

·         CNR—Communications and Networking Riser

·         COBOL—Common Business-Oriented Language

·         COM—Component Object Model or communication

·         CORBA—Common Object Request Broker Architecture

·         COTS—Commercial Off-The-Shelf

·         CPA—Cell Processor Architecture

·         CPAN—Comprehensive Perl Archive Network

·         CP/M—Control Program/Monitor

·         CPRI—Common Public Radio Interface

·         CPS—characters per second

·         CPU—Central Processing Unit

·         CR—Carriage Return

·         CRAN—Comprehensive R Archive Network

·         CRC—Cyclic Redundancy Check

·         CRLF—Carriage Return Line Feeds

·         CRM—Customer Relationship Management

·         CRS—Computer Reservations System

·         CRT—Cathode Ray Tube

·         CRUD—Create, Read, Update and Delete

·         CS—Cable Select

·         CS—Computer Science

·         CSE—Computer Science and Engineering

·         CSI—Common System Interface

·         CSMA/CD—Carrier sense multiple access with collision detection

·         CSP—Cloud Service Provider

·         CSP—Communicating Sequential Processes

·         CSRF—Cross-Site Request Forgery

·         CSS—Cascading Style Sheets

·         CSS—Content-Scrambling System

·         CSS—Closed Source Software

·         CSS—Cross-Site Scripting

·         CSV—Comma-Separated Values

·         CT—Computerized Tomography

·         CTAN—Comprehensive TeX Archive Network

·         CTCP—Client-To-Client Protocol

·         CTI—Computer Telephony Integration

·         CTFE—Compile Time Function Execution

·         CTL—Computational Tree Logic

·         CTM—Close To Metal

·         CTS—Clear To Send

·         CTSS—Compatible Time-Sharing System

·         CUA—Common User Access

·         CVS—Concurrent Versioning System

D[edit]

·         DAC—Digital-To-Analog Converter

·         DAC—Discretionary Access Control

·         DAL—Database Abstraction Layer

·         DAO—Data Access Object

·         DAO—Data Access Objects

·         DAO—Disk-At-Once

·         DAP—Directory Access Protocol

·         DARPA—Defense Advanced Research Projects Agency

·         DAT—Digital Audio Tape

·         DB—Database

·         DBA—Database Administrator

·         DBCS—Double Byte Character Set

·         DBMS—Database Management System

·         DCC—Direct Client-to-Client

·         DCCP—Datagram Congestion Control Protocol

·         DCCADebian Common Core Alliance

·         DCL—Data Control Language

·         DCS—Distributed Control System

·         DCMI—Dublin Core Metadata Initiative

·         DCOM—Distributed Component Object Model

·         DD—Double Density

·         DDE—Dynamic Data Exchange

·         DDL—Data Definition Language

·         DDoS—Distributed Denial of Service

·         DDR—Double Data Rate

·         DEC—Digital Equipment Corporation

·         DES—Data Encryption Standard

·         dev—development

·         DFA—Deterministic Finite Automaton

·         DFD—Data Flow Diagram

·         DFS—Depth-First Search

·         DFS—Distributed File System

·         DGD—Dworkin's Game Driver

·         DHCP—Dynamic Host Configuration Protocol

·         DHTML—Dynamic Hypertext Markup Language

·         DIF—Data Integrity Field

·         DIMM—Dual Inline Memory Module

·         DINDeutsches Institut für Normung

·         DIP—Dual In-line Package

·         DIVX—Digital Video Express

·         DKIM—Domain Keys Identified Mail

·         DL—Download

·         DLL—Dynamic Link Library

·         DLNA—Digital Living Network Alliance

·         DLP—Data loss protection

·         DMA—Direct Memory Access

·         DMCA—Digital Millennium Copyright Act

·         DMI—Direct Media Interface

·         DML—Data Manipulation Language

·         DML—Definitive Media Library

·         DMR—Dennis M. Ritchie

·         DMZ—Demilitarized Zone

·         DN—Distinguished Name

·         DND—Drag-and-Drop

·         DNS—Domain Name System

·         DOA—Dead on Arrival

·         DOCSIS—Data Over Cable Service Interface Specification

·         DOM—Document Object Model

·         DoS—Denial of Service

·         DOS—Disk Operating System

·         DP—Dot Pitch

·         DPC—Deferred Procedure Call

·         DPI—Deep Packet Inspection

·         DPI—Dots Per Inch

·         DPMI—DOS Protected Mode Interface

·         DPMS—Display Power Management Signaling

·         DRAM—Dynamic Random-Access Memory

·         DR-DOS—Digital Research - Disk Operating System

·         DRI—Direct Rendering Infrastructure

·         DRM—Digital Rights Management

·         DRM—Direct Rendering Manager

·         DSA—Digital Signature Algorithm

·         DSDL—Document Schema Definition Languages

·         DSDM—Dynamic Systems Development Method

·         DSL—Digital Subscriber Line

·         DSL—Domain-Specific Language

·         DSLAM—Digital Subscriber Line Access Multiplexer

·         DSN—Database Source Name

·         DSN—Data Set Name

·         DSP—Digital Signal Processor

·         DSSSL—Document Style Semantics and Specification Language

·         DTD—Document Type Definition

·         DTE—Data Terminal Equipment or data transfer rate

·         DTP—Desktop Publishing

·         DTR—Data Terminal Ready or Data transfer rate

·         DVD—Digital Versatile Disc

·         DVD-R—DVD-Recordable

·         DVD-ROM—DVD-Read Only Memory

·         DVD-RW—DVD-Rewritable

·         DVI—Digital Visual Interface

·         DVR—Digital Video Recorder

·         DW—Data Warehouse

E[edit]

·         EAI—Enterprise Application Integration

·         EAP—Extensible Authentication Protocol

·         EBCDIC—Extended Binary Coded Decimal Interchange Code

·         EBML—Extensible Binary Meta Language

·         ECC—Elliptic Curve Cryptography

·         ECMA—European Computer Manufacturers Association

·         ECN—Explicit Congestion Notification

·         ECOS—Embedded Configurable Operating System

·         ECRS—Expense and Cost Recovery System

·         EDA—Electronic Design Automation

·         EDI—Electronic Data Interchange

·         EDO—Extended Data Out

·         EDSAC—Electronic Delay Storage Automatic Calculator

·         EDVAC—Electronic Discrete Variable Automatic Computer

·         EEPROM—Electronically Erasable Programmable Read-Only Memory

·         EFF—Electronic Frontier Foundation

·         EFI—Extensible Firmware Interface

·         EFM—Eight-to-Fourteen Modulation

·         EGA—Enhanced Graphics Array

·         E-mail—Electronic mail

·         EGP—Exterior Gateway Protocol

·         eID—electronic ID card

·         EIDE—Enhanced IDE

·         EIGRP—Enhanced Interior Gateway Routing Protocol

·         EISA—Extended Industry Standard Architecture

·         ELF—Extremely Low Frequency

·         ELF—Executable and Linkable Format

·         ELMELectronic Mail

·         EMACS—Editor MACroS

·         EMS—Expanded Memory Specification

·         ENIAC—Electronic Numerical Integrator And Computer

·         EOD—End of Day

·         EOF—End of File

·         EOL—End of Line

·         EOM—End Of Message

·         EPIC—Explicitly Parallel Instruction Computing

·         EPROM—Erasable Programmable Read-Only Memory

·         ERD—Entity-Relationship Diagram

·         ERM—Entity-Relationship Model

·         ERP—Enterprise Resource Planning

·         eSATA—external SATA

·         ESB—Enterprise service bus

·         ESCON—Enterprise Systems Connection

·         ESD—Electrostatic Discharge

·         ETL—Extract, Transform, Load

·         ESR—Eric Steven Raymond

·         EUC—Extended Unix Code

·         EULA—End User License Agreement

·         EWMH—Extended Window Manager Hints

·         EXTEXTended file system

F[edit]

·         FAP—FORTRAN Assembly Program

·         FASM—Flat ASseMbler

·         FAT—File Allocation Table

·         FAQ—Frequently Asked Questions

·         FBDIMM—Fully Buffered Dual Inline Memory Module

·         FC-ALFibre Channel Arbitrated Loop

·         FCB—File Control Block

·         FCS—Frame Check Sequence

·         FDC—Floppy Disk Controller

·         FDS—Fedora Directory Server

·         FDD—Floppy Disk Drive

·         FDDI—Fiber Distributed Data Interface

·         FDMA—Frequency-Division Multiple Access

·         FEC—Forward Error Correction

·         FEMB—Front-End Motherboard

·         FET—Field Effect Transistor

·         FHS—Filesystem Hierarchy Standard

·         FICONFIber CONnectivity

·         FIFO—First In First Out

·         FIPS—Federal Information Processing Standards

·         FL—Function Level

·         FLAC—Free Lossless Audio Codec

·         FLOPSFLoating-Point Operations Per Second

·         FLOSS—Free/Libre/Open Source Software

·         FMC— Fixed Mobile Convergence "Mobile UC or Unified Communications over Wireless"

·         FOLDOC—Free On-line Dictionary of Computing

·         FOSDEM—Free and Open source Software Developers' European Meeting

·         FOSI—Formatted Output Specification Instance

·         FOSS—Free and Open Source Software

·         FP—Function Programming

·         FPGA—Field Programmable Gate Array

·         FPS—Floating Point Systems

·         FPU—Floating Point Unit

·         FRU—Field Replaceable Unit

·         FS—File System

·         FSB—Front Side Bus

·         fsck—File System Check

·         FSF—Free Software Foundation

·         FSM—Finite State Machine

·         FTTC—Fiber To The Curb

·         FTTH—Fiber To The Home

·         FTTP—Fiber To The Premises

·         FTP—File Transfer Protocol

·         FQDN—Fully Qualified Domain Name

·         FUD—Fear Uncertainty Doubt

·         FWS—Folding White Space

·         FXP—File eXchange Protocol

·         FYI—For Your Information

G[edit]

·         G11N—Globalization

·         Gas—GNU Assembler

·         Gb—Gigabit

·         GB—Gigabyte

·         GCC—GNU Compiler Collection

·         GCJ—GNU Compiler for Java

·         GCR—Group Code Recording

·         GDB—GNU Debugger

·         GDI—Graphics Device Interface

·         GFDL—GNU Free Documentation License

·         GIF—Graphics Interchange Format

·         GIGO—Garbage In, Garbage Out

·         GIMP—GNU Image Manipulation Program

·         GIMPS—Great Internet Mersenne Prime Search

·         GIS—Geographic Information System

·         GLUT—OpenGL Utility Toolkit

·         GML—Geography Markup Language

·         GNOME—GNU Network Object Model Environment

·         GNU—GNU's Not Unix

·         GOMS—Goals, Operators, Methods, and Selection rules

·         GPASM—GNU PIC ASseMbler

·         GPFS—General Parallel File System

·         GPG—GNU Privacy Guard

·         GPGPU—General-Purpose Computing on Graphics Processing Units

·         GPIB—General-Purpose Instrumentation Bus

·         GPL—General Public License

·         GPL—General-Purpose Language

·         GPRS—General Packet Radio Service

·         GPT—GUID Partition Table

·         GPU—Graphics Processing Unit

·         GRUB—Grand Unified Boot-Loader

·         GSM—Global System for Mobile Communications

·         GTK+—GIMP Toolkit

·         GUI—Graphical User Interface

·         GUID—Globally Unique IDentifier

·         GWT—Google Web Toolkit

·         GYR—IT Networking

H[edit]

·         HA—High Availability

·         HAL—Hardware Abstraction Layer

·         HASP—Houston Automatic Spooling Priority

·         HBA—Host Bus Adapter

·         HCI—Human Computer Interaction

·         HD—High Density

·         HDD—Hard Disk Drive

·         HCL—Hardware Compatibility List

·         HD DVD—High Definition DVD

·         HDL—Hardware Description Language

·         HDMI—High-Definition Multimedia Interface

·         HF—High Frequency

·         HFS—Hierarchical File System

·         HHD—Hybrid Hard Drive

·         HID—Human Interface Device

·         HIG—Human Interface Guidelines

·         HIRD—Hurd of Interfaces Representing Depth

·         HLASM—High Level ASseMbler

·         HLS—HTTP Live Streaming

·         HMA—High Memory Area

·         HP—Hewlett-Packard

·         HPC—High-Performance Computing

·         HPFS—High Performance File System

·         HSDPA—High-Speed Downlink Packet Access

·         HTC—High-Throughput Computing

·         HSM—Hierarchical Storage Management

·         HT—Hyper Threading

·         HTM—Hierarchical Temporal Memory

·         HTML—Hypertext Markup Language

·         HTTP—Hypertext Transfer Protocol

·         HTTPd—Hypertext Transport Protocol Daemon

·         HTXHyperTransport eXpansion

·         HURDHird of Unix-Replacing Daemons

·         HVD—Holographic Versatile Disc

·         Hz—Hertz

I[edit]

·         I²C—Inter-Integrated Circuit

·         I²S—Integrated Interchip Sound

·         I18N—Internationalization

·         IANA—Internet Assigned Numbers Authority

·         iBCS—Intel Binary Compatibility Standard

·         IBM—International Business Machines

·         IC—Integrated Circuit

·         ICANN—Internet Corporation for Assigned Names and Numbers

·         ICE—In-Circuit Emulator

·         ICE—Intrusion Countermeasure Electronics

·         ICMP—Internet Control Message Protocol

·         ICP—Internet Cache Protocol

·         ICT—Information and Communication Technology

·         IDE—Integrated Development Environment

·         IDE—Integrated Drive Electronics

·         IDF—Intermediate Distribution Frame

·         IDL—Interface Definition Language

·         IDS—Intrusion Detection System

·         IE—Internet Explorer

·         IEC—International Electrotechnical Commission

·         IEEE—Institute of Electrical and Electronics Engineers

·         IETF—Internet Engineering Task Force

·         IFL—Integrated Facility for Linux

·         IGMP—Internet Group Management Protocol

·         IGRP—Interior Gateway Routing Protocol

·         IHV—Independent Hardware Vendor

·         IIOP—Internet Inter-Orb Protocol

·         IIS—Internet Information Services

·         IL—Intermediate Language

·         IM—Instant Messaging

·         IMAP—Internet Message Access Protocol

·         IME—Input Method Editor

·         INFOSEC—Information Systems Security

·         I/O—Input/output

·         IoT—Internet of Things

·         IP—Intellectual Property

·         IP—Internet Protocol

·         IPC—Inter-Process Communication

·         IPL—Initial Program Load

·         IPO—Inter Procedural Optimization

·         IPP—Internet Printing Protocol

·         IPS—In-Plane Switching

·         IPS—Instructions Per Second

·         IPS—Intrusion Prevention System

·         IPsec—Internet Protocol security

·         IPTV—Internet Protocol Television

·         IPX—Internetwork Packet Exchange

·         IR—Intermediate Representation

·         IRC—Internet Relay Chat

·         IrDA—Infrared Data Association

·         IRI—Internationalized Resource Identifier

·         I/F—Interface

·         IRP—I/O Request Packet

·         IRQ—Interrupt Request

·         IS—Information Systems

·         IS-IS—Intermediate System to Intermediate System

·         ISA—Industry Standard Architecture

·         ISA—Instruction Set Architecture

·         ISAM—Indexed Sequential Access Method

·         ISC—Internet Storm Center

·         iSCSI—Internet Small Computer System Interface

·         ISDN—Integrated Services Digital Network

·         ISO—International Organization for Standardization

·         iSNS—Internet Storage Name Service

·         ISP—Internet Service Provider

·         ISPF—Interactive System Productivity Facility

·         ISR—Interrupt Service Routine

·         ISV—Independent Software Vendor

·         IT—Information Technology

·         ITIL—Information Technology Infrastructure Library

·         ITL—Interval Temporal Logic

·         ITU—International Telecommunication Union

·         IVRS—Interactive Voice Response System

·         IVCR—Interactive Virtual Classroom

J[edit]

·         J2EE—Java 2 Enterprise Edition

·         J2ME—Java 2 Micro Edition

·         J2SE—Java 2 Standard Edition

·         JAXB—Java Architecture for XML Binding

·         JAX-RPC—Java XML for Remote Procedure Calls

·         JAXP—Java API for XML Processing

·         JBOD—Just a Bunch of Disks

·         JCE— Java Cryptography Extension

·         JCL—Job Control Language

·         JCP—Java Community Process

·         JDBC—Java Database Connectivity

·         JDK—Java Development Kit

·         JEE—Java Enterprise Edition

·         JES—Job Entry Subsystem

·         JDS—Java Desktop System

·         JFC—Java Foundation Classes

·         JFET—Junction Field-Effect Transistor

·         JFS—IBM Journaling File System

·         JINIJini Is Not Initials

·         JIT—Just-In-Time

·         JME—Java Micro Edition

·         JMX—Java Management Extensions

·         JMS—Java Message Service

·         JNDI—Java Naming and Directory Interface

·         JNI—Java Native Interface

·         JNZ—Jump non-zero

·         JPEG—Joint Photographic Experts Group

·         JRE—Java Runtime Environment

·         JS—JavaScript

·         JSE—Java Standard Edition

·         JSON—JavaScript Object Notation

·         JSP—Jackson Structured Programming

·         JSPJavaServer Pages

·         JTAG—Joint Test Action Group

·         JUG—Java Users Group

·         JVM—Java Virtual Machine

K[edit]

·         K&R—Kernighan and Ritchie

·         KB—Keyboard

·         Kb—Kilobit

·         KB—Kilobyte

·         KB—Knowledge Base

·         KDE—K Desktop Environment

·         kHz—Kilohertz

·         KM—Knowledge Machine

·         KRL—Knowledge Representation Language

·         KVM—Keyboard, Video, Mouse

L[edit]

·         L10N—Localization

·         L2TP—Layer two Tunneling Protocol

·         LACP—Link Aggregation Control Protocol

·         LAMP—Linux Apache MySQL Perl

·         LAMP—Linux Apache MySQL PHP

·         LAMP—Linux Apache MySQL Python

·         LAN—Local Area Network

·         LBA—Logical Block Addressing

·         LCD—Liquid Crystal Display

·         LCR—Least Cost Routing

·         LCOS—Liquid Crystal On Silicon

·         LDAP—Lightweight Directory Access Protocol

·         LE—Logical Extents

·         LED—Light-Emitting Diode

·         LF—Line Feed

·         LF—Low Frequency

·         LFS—Linux From Scratch

·         LGPL—Lesser General Public License

·         LIBLIBrary

·         LIF—Low Insertion Force

·         LIFO—Last In First Out

·         LILO—Linux Loader

·         LISPLISt Processing

·         LKML—Linux Kernel Mailing List

·         LM—Lan Manager

·         LOC—Lines of Code

·         LPC—Lars Pensjö C

·         LPI—Linux Professional Institute

·         LPT— Line Print Terminal

·         LSB—Least Significant Bit

·         LSB—Linux Standard Base

·         LSI—Large-Scale Integration

·         LTL—Linear Temporal Logic

·         LTR—Left-to-Right

·         LUG—Linux User Group

·         LUN—Logical Unit Number

·         LV—Logical Volume

·         LVD—Low Voltage Differential

·         LVM—Logical Volume Management

·         LZW—Lempel-Ziv-Welch

·         LGA—Land Grid Array

M[edit]

·         MAC—Mandatory Access Control

·         MAC—Media Access Control

·         MAN—Metropolitan Area Network

·         MANET—Mobile Ad-Hoc Network

·         MAPI—Messaging Application Programming Interface

·         Mb—Megabit

·         MB—Megabyte

·         MBCS—Multi Byte Character Set

·         MBD—Model-Based Design

·         MBR—Master Boot Record

·         MCA—Micro Channel Architecture

·         MCA—Microsoft Certified Architect

·         MCAD—Microsoft Certified Application Developer

·         MCAS—Microsoft Certified Application Specialist

·         MCDBA—Microsoft Certified DataBase Administrator

·         MCDST—Microsoft Certified Desktop Support Technician

·         MCITP—Microsoft Certified Information Technology Professional

·         MCM—Microsoft Certified Master

·         MCP—Microsoft Certified Professional

·         MCPD—Microsoft Certified Professional Developer

·         MCSA—Microsoft Certified Systems Administrator

·         MCSD—Microsoft Certified Solution Developer

·         MCSE—Microsoft Certified Systems Engineer

·         MCT—Microsoft Certified Trainer

·         MCTS—Microsoft Certified Technology Specialist

·         MDA—Mail Delivery Agent

·         MDA—Model-Driven Architecture

·         MDA—Monochrome Display Adapter

·         MDD/MDSD—Model-Driven (Software) Development

·         MDF—Main Distribution Frame

·         MDI—Multiple Document Interface

·         ME—[Windows] Millennium Edition

·         MF—Medium Frequency

·         MFC—Microsoft Foundation Classes

·         MFM—Modified Frequency Modulation

·         MGCP—Media Gateway Control Protocol

·         MHz—Megahertz

·         MIB—Management Information Base

·         MICR—Magnetic Ink Character Recognition

·         MIDI—Musical Instrument Digital Interface

·         MIMD—Multiple Instruction, Multiple Data

·         MIMO—Multiple-Input Multiple-Output

·         MINIXMIni-uNIX

·         MIPS—Million Instructions Per Second

·         MIPS—Microprocessor without Interlocked Pipeline Stages

·         MIS—Management Information Systems

·         MISD—Multiple Instruction, Single Data

·         MIT—Massachusetts Institute of Technology

·         MIME—Multipurpose Internet Mail Extensions

·         MMDS—Mortality Medical Data System

·         MMI—Man Machine Interface.

·         MMIO—Memory-Mapped I/O

·         MMORPG—Massively Multiplayer Online Role-Playing Game

·         MMU—Memory Management Unit

·         MMX—Multi-Media Extensions

·         MNG—Multiple-image Network Graphics

·         MoBo—Motherboard

·         MOM—Message-Oriented Middleware

·         MOO—MUD Object Oriented

·         MOP—Meta-Object Protocol

·         MOS—Microsoft Office Specialist

·         MOSFET—Metal-Oxide Semiconductor Field Effect Transistor

·         MOTD—Message Of The Day

·         MOUS—Microsoft Office User Specialist

·         MOV—Apple QuickTime Multimedia File

·         MPAA—Motion Picture Association of America

·         MPEG—Motion Pictures Experts Group

·         MPL—Mozilla Public License

·         MPLS—Multiprotocol Label Switching

·         MPU—Microprocessor Unit

·         MS—Memory Stick

·         MS—Microsoft

·         MSB—Most Significant Bit

·         MS-DOS—Microsoft DOS

·         MT—Machine Translation

·         MTA—Mail Transfer Agent

·         MTA—Microsoft Technology Associate

·         MTBF—Mean Time Between Failures

·         MTU—Maximum Transmission Unit

·         MSA—Mail Submission Agent

·         MSDN—Microsoft Developer Network

·         MSI—Medium-Scale Integration

·         MSI—Message Signaled Interrupt

·         MSI—Microsoft Installer

·         MUA—Mail User Agent

·         MUD—Multi-User Dungeon

·         MVC—Model-View-Controller

·         MVP—Most Valuable Professional

·         MVS—Multiple Virtual Storage

·         MWC—Mobile World Congress

·         MX—Mail exchange

·         MXF—Material Exchange Format

N[edit]

·         NACK—Negative ACKnowledgement

·         NAK—Negative AcKnowledge Character

·         NaN—Not a Number

·         NAS—Network-Attached Storage

·         NASMNetwide ASseMbler

·         NAT—Network Address Translation

·         NCP—NetWare Core Protocol

·         NCQ—Native Command Queuing

·         NCSA—National Center for Supercomputing Applications

·         NDPS—Novell Distributed Print Services

·         NDS—Novell Directory Services

·         NEP—Network Equipment Provider

·         NetBIOS—Network Basic Input/Output System

·         NEXT—Near-End CrossTalk

·         NFA—Nondeterministic Finite Automaton

·         NFC—Near field communication

·         NFS—Network File System

·         NGLaNGeL

·         NGSCB—Next-Generation Secure Computing Base

·         NI—National Instruments

·         NIC—Network Interface Controller

·         NIM—No Internal Message

·         NIO—New I/O

·         NIST—National Institute of Standards and Technology

·         NLP—Natural Language Processing

·         NLS—Native Language Support

·         NMI—Non-Maskable Interrupt

·         NP—Nondeterministic Polynomial time

·         NPL—Netscape Public License

·         NPU—Network Processing Unit

·         NS—Netscape

·         NSA—National Security Agency

·         NSPR—Netscape Portable Runtime

·         NNTP—Network News Transfer Protocol

·         NOC—Network Operations Center

·         NOP—No OPeration

·         NOS—Network Operating System

·         NPTL—Native POSIX Thread Library

·         NSS—Novell Storage Service

·         NSS—Network Security Services

·         NSS—Name Service Switch

·         NT—New Technology

·         NTFS—NT Filesystem

·         NTLM—NT Lan Manager

·         NTP—Network Time Protocol

·         NUMA—Non-Uniform Memory Access

·         NURBS—Non-Uniform Rational B-Spline

·         NVR—Network Video Recorder

·         NVRAM—Non-Volatile Random Access Memory

O[edit]

·         OASIS—Organization for the Advancement of Structured Information Standards

·         OAT—Operational Acceptance Testing

·         OBSAI—Open Base Station Architecture Initiative

·         ODBC—Open Database Connectivity

·         OEM—Original Equipment Manufacturer

·         OES—Open Enterprise Server

·         OFTC—Open and Free Technology Community

·         OID—Object Identifier

·         OLAP—Online Analytical Processing

·         OLE—Object Linking and Embedding

·         OLED—Organic Light Emitting Diode

·         OLPC—One Laptop per Child

·         OLTP—Online Transaction Processing

·         OMF—Object Module Format

·         OMG—Object Management Group

·         OMR—Optical Mark Reader

·         OO—Object-Oriented

·         OO—OpenOffice

·         OOE—Out-of-Order Execution

·         OOM—Out Of Memory

·         OOo—OpenOffice.org

·         OoOE—Out-of-Order Execution

·         OOP—Object-Oriented Programming

·         OOTB—Out of the box

·         OPML—Outline Processor Markup Language

·         ORB—Object Request Broker

·         ORM—Object-Relational Mapping

·         OS—Open Source

·         OS—Operating System

·         OSCON—O'Reilly Open Source CONvention

·         OSDN—Open Source Developer Network

·         OSI—Open Source Initiative

·         OSI—Open Systems Interconnection

·         OSPF—Open Shortest Path First

·         OSS—Open Sound System

·         OSS—Open-Source Software

·         OSS—Operations Support System

·         OSTG—Open Source Technology Group

·         OUIOrganisationally Unique Identifier

P[edit]

·         P2P—Peer-To-Peer

·         PaaS—Platform as a Service

·         PAN—Personal Area Network

·         PAP—Password Authentication Protocol

·         PARC—Palo Alto Research Center

·         PATA—Parallel ATA

·         PBS—Portable Batch System

·         PC—Personal Computer

·         PCB—Printed Circuit Board

·         PCB—Process Control Block

·         PC DOS—Personal Computer Disc Operating System

·         PCI—Peripheral Component Interconnect

·         PCIe—PCI Express

·         PCL—Printer Command Language

·         PCMCIA—Personal Computer Memory Card International Association

·         PCM—Pulse-Code Modulation

·         PCRE—Perl Compatible Regular Expressions

·         PD—Public Domain

·         PDA—Personal Digital Assistant

·         PDF—Portable Document Format

·         PDHPlesiochronous Digital Hierarchy

·         PDP—Programmed Data Processor

·         PE—Physical Extents

·         PERL—Practical Extraction and Reporting Language

·         PFA—Please Find Attachment

·         PG—Peripheral Gateway

·         PGA—Pin Grid Array

·         PGA—Programmable Gate Array

·         PGO—Profile-Guided Optimization

·         PGP—Pretty Good Privacy

·         PHP—Hypertext Preprocessor

·         PIC—Peripheral Interface Controller

·         PIC—Programmable Interrupt Controller

·         PID—Proportional-Integral-Derivative

·         PID—Process ID

·         PIM—Personal Information Manager

·         PINE—Program for Internet News and Email

·         PIM—Platform Independent Model

·         PIO—Programmed Input/Output

·         PKCS—Public Key Cryptography Standards

·         PKI—Public Key Infrastructure

·         PLC—Power Line Communication

·         PLC—Programmable Logic Controller

·         PLD—Programmable Logic Device

·         PL/I—Programming Language One

·         PL/M—Programming Language for Microcomputers

·         PL/P—Programming Language for Prime

·         PLT—Power Line Telecommunications

·         PMM—POST Memory Manager

·         PNG—Portable Network Graphics

·         PnP—Plug-and-Play

·         PoE—Power over Ethernet

·         POID—Persistent Object Identifier

·         POJO—Plain Old Java Object

·         POP—Point of Presence

·         POP3—Post Office Protocol v3

·         POSIX—Portable Operating System Interface, formerly IEEE-IX

·         POST—Power-On Self Test

·         PPC—PowerPC

·         PPI—Pixels Per Inch

·         PPP—Point-to-Point Protocol

·         PPPoA—PPP over ATM

·         PPPoE—PPP over Ethernet

·         PPTP—Point-to-Point Tunneling Protocol

·         PR—Pull Request

·         PS—PostScript

·         PS/2—Personal System/2

·         PSA—Professional Services Automation

·         PSM—Platform Specific Model

·         PSU—Power Supply Unit

·         PSVI—Post-Schema-Validation Infoset

·         PTS-DOSPhysTechSoft - Disk Operating System

·         PV—Physical Volume

·         PVG—Physical Volume Group

·         PVR—Personal Video Recorder

·         PXEPreboot Execution Environment

·         PXI—PCI eXtensions for Instrumentation

Q[edit]

·         QDR—Quad Data Rate

·         QA—Quality Assurance

·         QFP—Quad Flat Package

·         QoS—Quality of Service

·         QOTD—Quote of the Day

·         Qt—Quasar Toolkit

·         QTAM—Queued Teleprocessing Access Method

·         QSOP—Quarter Small Outline Package

R[edit]

·         RACF—Resource Access Control Facility

·         RAD—Rapid Application Development

·         RADIUS—Remote Authentication Dial In User Service

·         RAID—Redundant Array of Independent Disks

·         RAID—Redundant Array of Inexpensive Disks

·         RAII—Resource Acquisition Is Initialization

·         RAIT—Redundant Array of Inexpensive Tapes

·         RAM—Random Access Memory

·         RARP—Reverse Address Resolution Protocol