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List of Computing and IT abbreviations

0–9

A.

  • 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

  • ACK—ACKnowledgement

  • 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

  • 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

  • AuthIP—Authenticated Internet Protocol

  • 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

0–9

A.

  • 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

  • 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

  • AV—Antivirus

  • AVC—Advanced Video Coding

  • AVI—Audio Video Interleaved

  • AWK—Aho Weinberger Kernighan

  • AWT—Abstract Window Toolkit

  • AWFL—Acronym With Four Letters

B.

  • B2B—Business-to-Business

  • B2C—Business-to-Consumer

  • B2E- Business-to-Employee

  • 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

  • BCD—Boot Configuration Data

  • 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

C.

  • 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

  • CDFS—Compact Disk File System

  • 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

  • CMDB—Configuration Management Database

  • CMMI—Capability Maturity Model Integration

  • CMOS—Complementary Metal-Oxide Semiconductor

  • CMO—Current Mode of Opperation

B.

  • 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

  • BRS—Broadband Radio Service

  • BSA—Business Software Alliance

  • BSB—Backside Bus

  • BSD—Berkeley Software Distribution

  • BSoD—Blue Screen of Death

  • BSS—Block Started by Symbol

  • BT—BitTorrent

  • BT—Bluetooth

  • B TAM—Basic Telecommunications Access Method

  • BW—Bandwidth

  • BYOD—Bring Your Own Device

  • Byte—By eight (group of 8 bits)

C.

  • CMS—Content Management System

  • CN—Canonical Name

  • CN—Common Name

  • CNC—Computer Numerical Control

  • CNG—Cryptographic Next Generation

  • CNG—Cryptography Next Generation

  • 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

  • CSM—Compatibility Support Module

  • 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.

  • 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

  • DCCA—Debian 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

  • DDI—DNS DHCP & IP Address management

  • 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

  • DIN—Deutsches Institut für Normung

  • DIP—Dual In-line Package

  • DISM—Deployment Image and Service Management Tool

  • 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

D.

  • 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

  • DR—Disaster Recovery

  • 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.

  • EAI—Enterprise Application Integration

  • EAP—Extensible Authentication Protocol

  • EAS—Exchange ActiveSync

  • 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

  • EDGE— Enhanced Data rates for GSM Evolution

  • 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

  • EFS—Encrypting File System

  • 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

F.

  • FAP—FORTRAN Assembly Program

  • FASM—Flat ASseMbler

  • FAT—File Allocation Table

  • FAQ—Frequently Asked Questions

  • FBDIMM—Fully Buffered Dual Inline Memory Module

  • FC-AL—Fibre Channel Arbitrated Loop

  • FCB—File Control Block

  • FCS—Frame Check Sequence

  • FDC—Floppy Disk Controller

  • FDS—Fedora Directory Server

  • FDD—Frequency-Division Duplexing

  • FDD—Floppy Disk Drive

  • FDDI—Fiber Distributed Data Interface

  • FDM—Frequency-Division Multiplexing

  • FDMA—Frequency-Division Multiple Access

  • FEC—Forward Error Correction

  • FEMB—Front-End Motherboard

  • FET—Field Effect Transistor

  • FHS—Filesystem Hierarchy Standard

  • FICON—FIber CONnectivity

  • FIFO—First In First Out

  • FIPS—Federal Information Processing Standards

  • FL—Function Level

  • FLAC—Free Lossless Audio Codec

  • FLOPS—FLoating-Point Operations Per Second

  • FLOSS—Free/Libre/Open Source Software

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

G.

  • G11N—Globalization

  • Gas—GNU Assembler

  • Gb—Gigabit

  • GB—Gigabyte

  • GCC—GNU Compiler Collection

  • GCJ—GNU Compiler for Java

  • GCR—Group Coded 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

H.

  • 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

I.

  • 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

  • ICH—I/O Controller Hub

  • ICMP—Internet Control Message Protocol

  • ICP—Internet Cache Protocol

  • ICS—Internet Connection Sharing

  • ICT—Information and Communication Technology

  • IDE—Integrated Development Environment

  • IDE—Integrated Drive Electronics

  • IDF—Intermediate Distribution Frame

  • IDF—Intermediate Data Format

  • IDL—Interactive Data Language

  • 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

  • IKE—Internet Key Exchange

  • 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

J.

  • 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

K.

  • K&R—Kernighan and Ritchie

  • KB—Keyboard

  • Kb—Kilobit

  • KB—Kilobyte

  • KB—Knowledge Base

  • KiB—Kibibyte

L.

  • L10N—Localization

  • L2TP—Layear 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

  • LB—Load Balancer

  • 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

  • LIB—LIBrary

  • LIF—Low Insertion Force

  • LIFO—Last In First Out

M.

  • 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

  • MCPC—Multiple Channels Per Carrier

  • 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—Microsoft Edge

  • 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

  • MINIX—MIni-uNIX

  • MIPS—Million Instructions Per Second

  • MIPS—Microprocessor without Interlocked Pipeline Stages

  • MIS—Management Information Systems

  • MISD—Multiple Instruction, Single Data

E.

  • EISA—Extended Industry Standard Architecture

  • ELF—Extremely Low Frequency

  • ELF—Executable and Linkable Format

  • ELM—ELectronic 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

  • EOS—End OF Support

  • 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

  • ESR—Eric Steven Raymond

  • ETL—Extract, Transform, Load

  • ETW—Event Tracing for Windows

  • EUC—Extended Unix Code

  • EULA—End User License Agreement

  • EWMH—Extended Window Manager Hints

  • EXT—EXTended file system

F.

  • ​FMO—Future Mode of Opperation

  • 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

  • FTTA—Fiber To The Antenna

  • 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

  • FVEK—Full Volume Encryption Key

G.

  • 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

  • GERAN—GSM EDGE Radio Access Network

  • 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.

  • 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

  • HTTPS—HTTP Secure

  • HTX—HyperTransport eXpansion

  • HURD—Hird of Unix-Replacing Daemons

  • HVD—Holographic Versatile Disc

  • Hz—Hertz

I.

  • IPAM—IP Address Management

  • IPC—Inter-Process Communication

  • IPL—Initial Program Load

  • IPMI—Intelligent Platform Management Interface

  • 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

  • IPv4—Internet Protocol version 4

  • IPv6—Internet Protocol version 6

  • 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

  • ISATAP—Intra-Site Automatic Tunnel Addressing Protocol

  • 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.

  • JINI—Jini 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

  • JSP—JavaServer Pages

  • JTAG—Joint Test Action Group

  • JUG—Java Users Group

  • JVM—Java Virtual Machine

K.

  • KDE—K Desktop Environment

  • kHz—Kilohertz

  • KM—Knowledge Machine

  • KRL—Knowledge Representation Language

  • KVM—Keyboard, Video, Mouse

L.

  • LILO—Linux Loader

  • LISP—LISt 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

  • LRU—Least Recently Used

  • LSB—Least Significant Bit

  • LSB—Linux Standard Base

  • LSI—Large-Scale Integration

  • LTE—Long Term Evolution

  • 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.

  • MIT—Massachusetts Institute of Technology

  • MIME—Multipurpose Internet Mail Extensions

  • MMDS—Multichannel Multipoint Distribution Service

  • MMDS—Mortality Medical Data System

  • MMI—Man Machine Interface.

  • MMIO—Memory-Mapped I/O

  • MMORPG—Massively Multiplayer Online Role-Playing Game

  • MMC— Microsoft Management Console

  • 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

  • MSN—Microsoft Network

  • 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.

  • NACK—Negative ACKnowledgement

  • NAK—Negative AcKnowledge Character

  • NaN—Not a Number

  • NAP—Network Access Protection

  • NAS—Network-Attached Storage

  • NASM—Netwide ASseMbler

  • NAT—Network Address Translation

  • NCP—NetWare Core Protocol

  • NCQ—Native Command Queuing

  • NCSA—National Center for Supercomputing Applications

  • NDIS—Network Driver Interface Specification

  • NDPS—Novell Distributed Print Services

  • NDS—Novell Directory Services

  • NEP—Network Equipment Provider

  • NetBIOS—Network Basic Input/Output System

  • NetBT—NetBIOS over TCP/IP

  • NEXT—Near-End CrossTalk

  • NFA—Nondeterministic Finite Automaton

  • NFC—Near field communication

  • NFS—Network File System

  • NGL—aNGeL

  • 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

N.

  • NLP—Natural Language Processing

  • NLS—Native Language Support

  • NMI—Non-Maskable Interrupt

  • NNTP—Network News Transfer Protocol

  • NOC—Network Operations Center

  • NOP—No OPeration

  • NOS—Network Operating System

  • NP—Nondeterministic Polynomial time

  • NPL—Netscape Public License

  • NPTL—Native POSIX Thread Library

  • NPU—Network Processing Unit

  • NS—Netscape

  • NSA—Network Security Appliance

  • NSI—Network Service Interface

  • NSPR—Netscape Portable Runtime

  • 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.

  • 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

  • OFDM—Orthogonal Frequency Division Multiplexing

  • 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

O.

  • 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 Development 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

  • OUI—Organisationally Unique Identifier

P.

  • 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

  • PDH—Plesiochronous 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

Q.

  • QDR—Quad Data Rate

  • QA—Quality Assurance

  • QFP—Quad Flat Package

  • QoS—Quality of Service

  • QOTD—Quote of the Day

R.

  • RACF—Resource Access Control Facility

  • RAD—Rapid Application Development

  • RADIUS—Remote Authentication Dial In User Service

  • RAID—Redundant Array of Independent Disks

  • RAII—Resource Acquisition Is Initialization

  • RAIT—Redundant Array of Inexpensive Tapes

  • RAM—Random Access Memory

  • RARP—Reverse Address Resolution Protocol

  • RAS—Reliability, Availability and Serviceability

  • RAS—Remote Access Service

  • RC—Region Code

  • RC—Release Candidate

  • RC—Run Commands

  • RCS—Revision Control System

  • RD—Remote Desktop

  • rd—remove directory

  • RDBMS—Relational Database Management System

  • RDC—Remote Desktop Connection

  • RDF—Resource Description Framework

  • RDM—Relational Data Model

  • RDOS—Real-time Disk Operating System

  • RDP— Remote Desktop Protocol

  • RDS—Remote Data Services

  • REFAL—Recursive Functions Algorithmic Language

  • REST—Representational State Transfer

  • regex—Regular Expression

  • regexp—Regular Expression

  • RF—Radio Frequency

  • RFC—Request For Comments

  • RFI—Radio Frequency Interference

  • RFID—Radio Frequency Identification

  • RGB—Red, Green, Blue

  • RGBA—Red, Green, Blue, Alpha

  • RHL—Red Hat Linux

  • RHEL—Red Hat Enterprise Linux

  • RIA—Rich Internet Application

S.

  • SaaS—Software as a Service

  • SAM— Security Account Manager

  • SAN—Storage Area Network

  • SAS—Serial attached SCSI

  • SATA—Serial ATA

  • SAX—Simple API for XML

  • SBOD—Spinning Beachball of Death

  • SBP-2—Serial Bus Protocol 2

  • sbin—superuser binary

  • SBU—Standard Build Unit

  • SCADA—Supervisory Control And Data Acquisition

  • SCID—Source Code in Database

  • SCM—Software Configuration Management

  • SCM—Source Code Management

  • SCP—Secure Copy

  • SCPC—Single Channel Per Carrier

  • SCPI—Standard Commands for Programmable Instrumentation

  • SCSA—Secure Content Storage Association

  • SCSI—Small Computer System Interface

  • SCTP—Stream Control Transmission Protocol

  • SD—Secure Digital

  • SDDL—Security Descriptor Definition Language

  • SDH—Synchronous Digital Hierarchy

  • SDI—Single Document Interface

  • SEC—Single Edge Contact

  • SDIO—Secure Digital Input Output

  • SDK—Software Development Kit

  • SDL—Simple DirectMedia Layer

  • SDN—Service Delivery Network

  • SDP—Session Description Protocol

  • SDR—Software-Defined Radio

  • SDRAM—Synchronous Dynamic Random Access Memory

  • SDSL—Symmetric DSL

  • SE—Single Ended

  • SEI—Software Engineering Institute

  • SEO—Search Engine Optimization

  • SFTP—Secure FTP

  • SFTP—Simple File Transfer Protocol

  • SFTP—SSH File Transfer Protocol

  • SGI—Silicon Graphics, Incorporated

  • SGML—Standard Generalized Markup Language

  • SGR—Select Graphic Rendition

  • SHA—Secure Hash Algorithm

  • SHDSL—Single-pair High-speed Digital Subscriber Line

  • SIGCAT—Special Interest Group on CD-ROM Applications and Technology

  • SIGGRAPH—Special Interest Group on Graphics

  • SIMD—Single Instruction, Multiple Data

  • SIMM—Single Inline Memory Module

  • SIP—Session Initiation Protocol

  • SIP—Supplementary Ideographic Plane

  • SISD—Single Instruction, Single Data

  • SISO—Single-Input and Single-Output

  • SLED—SUSE Linux Enterprise Desktop

  • SLES—SUSE Linux Enterprise Server

  • SLI—Scalable Link Interface

  • SLIP—Serial Line Internet Protocol

  • SLM—Service Level Management

  • SLOC—Source Lines of Code

T.

  • TAO—Track-At-Once

  • TAPI—Telephony Application Programming Interface

  • TASM—Turbo ASseMbler

  • TB—TeraByte

  • Tcl—Tool Command Language

  • TCP—Transmission Control Protocol

  • TCP/IP—Transmission Control Protocol/Internet Protocol

  • TCU—Telecommunication Control Unit

  • TDMA—Time-Division Multiple Access

  • TFT—Thin-Film Transistor

  • TFTP—Trivial File Transfer Protocol

  • TI—Texas Instruments

  • TLA—Three-Letter Acronym

  • TLD—Top-Level Domain

  • TLS—Thread-Local Storage

  • TLS—Transport Layer Security

  • TLV—Type-length-value

  • tmp—temporary

  • TNC—Terminal Node Controller

U.

  • UAAG—User Agent Accessibility Guidelines

  • UAC—User Account Control

  • UART—Universal Asynchronous Receiver/Transmitter

  • UAT—User Acceptance Testing

  • UCS—Universal Character Set

  • UDDI—Universal Description, Discovery, and Integration

  • UDMA—Ultra DMA

  • UDP—User Datagram Protocol

  • UEFI—Unified Extensible Firmware Interface

  • UHF—Ultra High Frequency

  • UI—User Interface

  • UL—Upload

  • ULA—Uncommitted Logic Array

  • UMA—Upper Memory Area

  • UMB—Upper Memory Block

  • UML—Unified Modeling Language

  • UML—User-Mode Linux

  • UMPC—Ultra-Mobile Personal Computer

  • UMTS—Universal Mobile Telecommunications System

  • UNC—Universal Naming Convention

V.

  • var—variable

  • VAX—Virtual Address eXtension

  • VCPI—Virtual Control Program Interface

  • VR—Virtual Reality

  • VRML—Virtual Reality Modeling Language

  • VB—Visual Basic

  • VBA—Visual Basic for Applications

  • VBS—Visual Basic Script

  • VDM— Virtual DOS machine

  • VDSL—Very High Bitrate Digital Subscriber Line

  • VESA—Video Electronics Standards Association

  • VFAT—Virtual FAT

  • VHD — Virtual Hard Disk

  • VFS—Virtual File System

  • VG—Volume Group

  • VGA—Video Graphics Array

  • VHF—Very High Frequency

  • VLAN—Virtual Local Area Network

W.

  • W3C—World Wide Web Consortium

  • WWDC—Apple World Wide Developer Conference

  • WAFS—Wide Area File Services

  • WAI—Web Accessibility Initiative

  • WAIS—Wide Area Information Server

  • WAN—Wide Area Network

  • WAP—Wireless Access Point

  • WAP—Wireless Application Protocol

  • WASM—Watcom ASseMbler

  • WBEM—Web-Based Enterprise Management

  • WCAG—Web Content Accessibility Guidelines

  • WCF—Windows Communication Foundation

  • WDM—Wavelength-Division Multiplexing

  • WebDAV—WWW Distributed Authoring and Versioning

  • WEP—Wired Equivalent Privacy

  • WFI—Wait For Interrupt

  • WiFi—Wireless Fidelity

  • WiMAX—Worldwide Interoperability for Microwave Access

  • WinFS—Windows Future Storage

  • WinRT—Windows RunTime

  • WINS—Windows Internet Name Service

  • WLAN—Wireless Local Area Network

  • WMA—Windows Media Audio

X.

  • XAG—XML Accessibility Guidelines

  • XAML—eXtensible Application Markup Language

  • XDM—X Window Display Manager

  • XDMCP—X Display Manager Control Protocol

  • XCBL—XML Common Business Library

  • XHTML—eXtensible Hypertext Markup Language

  • XILP—X Interactive ListProc

  • XML—eXtensible Markup Language

  • XMMS—X Multimedia System

  • XMPP—eXtensible Messaging and Presence Protocol

  • XMS—Extended Memory Specification

  • XNS—Xerox Network Systems

  • XP—Cross-Platform

  • XP—Extreme Programming

Y.

  • Y2K—Year Two Thousand

  • YAAF—Yet Another Application Framework

  • YACC—Yet Another Compiler Compiler

Z.

  • ZCAV—Zone Constant Angular Velocity

  • ZCS—Zero Code Suppression

  • ZIF—Zero Insertion Force

  • ZIFS—Zero Insertion Force Socket

  • ZISC—Zero Instruction Set Computer

P.

  • 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

  • PNRP—Peer Name Resolution Protocol

  • 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-DOS—PhysTechSoft - Disk Operating System

  • PV—Physical Volume

  • PVG—Physical Volume Group

  • PVR—Personal Video Recorder

  • PXE—Preboot Execution Environment

  • PXI—PCI eXtensions for Instrumentation

Q.

  • Qt—Quasar Toolkit

  • QTAM—Queued Teleprocessing Access Method

  • QSOP—Quarter Small Outline Package

  • qWave—Quality Windows Audio/Video Experience

R.

  • RIAA—Recording Industry Association of America

  • RIP—Raster Image Processor

  • RIP—Routing Information Protocol

  • RIR—Regional Internet registry

  • RISC—Reduced Instruction Set Computer

  • RISC OS—Reduced Instruction Set Computer Operating System

  • RJE—Remote Job Entry

  • RLE—Run-Length Encoding

  • RLL—Run-Length Limited

  • rmdir—remove directory

  • RMI—Remote Method Invocation

  • RMS—Richard Matthew Stallman

  • ROM—Read Only Memory

  • ROMB—Read-Out Motherboard

  • ROM-DOS—Read Only Memory - Disk Operating System

  • RPC—Remote Procedure Call

  • RPG—Report Program Generator

  • RPM—RPM Package Manager

  • RRAS—Routing and Remote Access Service

  • RSA—Rivest Shamir Adleman

  • RSI—Repetitive Strain Injury

  • RSS—Radio Service Software

  • RSS—Rich Site Summary, RDF Site Summary, or Really Simple Syndication

  • RTAI—Real-Time Application Interface

  • RTC—Real-Time Clock

  • RTE—Real-Time Enterprise

  • RTEMS—Real-Time Executive for Multiprocessor Systems

  • RTL—Right-to-Left

  • RTOS—Real-Time Operating System

  • RTP—Real-time Transport Protocol

  • RTS—Ready To Send

  • RTSP—Real Time Streaming Protocol

  • RTTI—Run-time Type Information

  • RWD—Responsive Web Design

S.

  • SME—Subject Matter Expert

  • SPM—Software project management

  • SPMD—Single Program, Multiple Data

  • SMA—SubMiniature version A

  • SMB—Server Message Block

  • SMBIOS—System Management BIOS

  • SMIL—Synchronized Multimedia Integration Language

  • S/MIME—Secure/Multipurpose Internet Mail Extensions

  • SMP—Supplementary Multilingual Plane

  • SMP—Symmetric Multi-Processing

  • SMPS—Switch Mode Power Supply

  • SMS—Short Message Service

  • SMS—System Management Server

  • SMT—Simultaneous Multithreading

  • SMTP—Simple Mail Transfer Protocol

  • SNA—Systems Network Architecture

  • SNMP—Simple Network Management Protocol

  • SNTP—Simple Network Time Protocol

  • SOA—Service-Oriented Architecture

  • SOAP—Simple Object Access Protocol

  • SOAP—Symbolic Optimal Assembly Program

  • SOPA—Stop Online Piracy Act

  • SoC—System-on-a-Chip

  • SO-DIMM—Small Outline DIMM

  • SOE—Standard Operating Environment

  • SOHO—Small Office/Home Office

  • SOI—Silicon On Insulator

  • SP—Service Pack

  • SPA—Single Page Application

  • SPF—Sender Policy Framework

  • SPI—Serial Peripheral Interface

  • SPI—Stateful Packet Inspection

  • SPARC—Scalable Processor Architecture

  • SQL—Structured Query Language

  • SRAM—Static Random Access Memory

  • SSA—Static Single Assignment

  • SSD—Software Specification Document

  • SSD—Solid-State Drive

  • SSDP—Simple Service Discovery Protocol

  • SSE—Streaming SIMD Extensions

  • SSH—Secure Shell

  • SSI—Server Side Includes

  • SSI—Single-System Image

  • SSI—Small-Scale Integration

  • SSID—Service Set Identifier

  • SSL—Secure Socket Layer

  • SSP—Supplementary Special-purpose Plane

  • SSSE—Supplementary Streaming SIMD Extensions

  • SSSP—Single Source Shortest Path

  • SSTP—Secure Socket Tunneling Protocol

  • su—superuser

  • SUS—Single UNIX Specification

  • SUSE—Software und System-Entwicklung

  • SVC—Scalable Video Coding

  • SVG—Scalable Vector Graphics

  • SVGA—Super Video Graphics Array

  • SVD—Structured VLSI Design

  • SWF—Shock Wave Flash

  • SWT—Standard Widget Toolkit

  • Sysop—System operator

T.

  • TNC—Threaded Neill-Concelman connector

  • TPF—Transaction Processing Facility

  • TPM—Trusted Platform Module

  • TROFF—Trace Off

  • TRON—Trace On

  • TRON—The Real-time Operating system Nucleus

  • TRSDOS—Tandy Radio Shack - Disk Operating System

  • TSO—Time Sharing Option

  • TSP—Traveling Salesman Problem

  • TSR—Terminate and Stay Resident

  • TTA—True Tap Audio

  • TTF—TrueType Font

  • TTL—Transistor-Transistor Logic

  • TTL—Time To Live

  • TTS—Text-to-Speech

  • TTY—Teletype

  • TUCOWS—The Ultimate Collection of Winsock Software

  • TUG—TeX Users Group

  • TWAIN—Technology Without An Interesting Name

U.

  • UNIVAC—Universal Automatic Computer (By MKS)

  • UPS—Uninterruptible Power Supply

  • URI—Uniform Resource Identifier

  • URL—Uniform Resource Locator

  • URN—Uniform Resource Name

  • USB—Universal Serial Bus

  • usr—user

  • USR—U.S. Robotics

  • UTC—Coordinated Universal Time

  • UTF—Unicode Transformation Format

  • UTP—Unshielded Twisted Pair

  • UTRAN—Universal Terrestrial Radio Access Network

  • UUCP—Unix to Unix Copy

  • UUID—Universally Unique Identifier

  • UUN—Universal User Name

  • UVC—Universal Virtual Computer

  • UWP—Universal Windows Platform

  • UX—User Experience

V.

  • VLSM—Variable Length Subnet Mask

  • VLB—Vesa Local Bus

  • VLF—Very Low Frequency

  • VLIW—Very Long Instruction Word

  • VLSI—Very-Large-Scale Integration

  • VM—Virtual Machine

  • VM—Virtual Memory

  • VMM—Virtual Machine Monitor

  • VNC—Virtual Network Computing

  • VOD—Video On Demand

  • VoIP—Voice over Internet Protocol

  • VPN—Virtual Private Network

  • VPU—Visual Processing Unit

  • VSAM—Virtual Storage Access Method

  • VSAT—Very Small Aperture Terminal

  • VT—Video Terminal?

  • VTAM—Virtual Telecommunications Access Method

  • VRAM—Video Random Access Memory

W.

  • WMI— Windows Management Instrumentation

  • WMV—Windows Media Video

  • WNS—Windows Push Notification Service

  • WOL—Wake-on-LAN

  • WOR—Wake-on-Ring

  • WORA—Write once, run anywhere

  • WORE—Write once, run everywhere

  • WPA—Wi-Fi Protected Access

  • WPAD—Web Proxy Autodiscovery Protocol

  • WPAN—Wireless Personal Area Network

  • WPF—Windows Presentation Foundation

  • WS-D—Web Services-Discovery

  • WSDL—Web Services Description Language

  • WSFL—Web Services Flow Language

  • WUSB—Wireless Universal Serial Bus

  • WWAN—Wireless Wide Area Network

  • WWID—World Wide Identifier

  • WWN—World Wide Name

  • WWW—World Wide Web

  • WYSIWYG—What You See Is What You Get

  • WZC—Wireless Zero Configuration

X.

  • XPCOM—Cross Platform Component Object Model

  • XPI—XPInstall

  • XPIDL—Cross-Platform IDL

  • XPS— XML Paper Specification

  • XSD—XML Schema Definition

  • XSL—eXtensible Stylesheet Language

  • XSL-FO—eXtensible Stylesheet Language Formatting Objects

  • XSLT—eXtensible Stylesheet Language Transformations

  • XSS—Cross-Site Scripting

  • XTF—eXtensible Tag Framework

  • XTF—eXtended Triton Format

  • XUL—XML User Interface Language

  • XVGA—Extended Video Graphics Adapter

Y.

  • YAML—YAML Ain't Markup Language

  • YaST—Yet another Setup Tool

Z.

  • ZOI—Zero One Infinity

  • ZOPE—Z Object Publishing Environment

  • ZMA—Zone Multicast Address

  • ZPL—Z-level Programming Language

© Created 1 December 2016, Design & developed by MAS.

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