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Computer Abbreviations

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Computer Abbreviations

Computer Abbreviations

shape Introduction

Computer Abbreviations is an important topic in many recruitment related examinations in India. The recruitment examinations primarily include employment to government sectors such as banking, railways, insurance, etc. among various other sectors. Computer Awareness topics are one of the key scoring sections of the competitive exams. thus knowledge of Computer Abbreviations is a great asset to faring well in the competitive exams.

shape List

Below table contains the list of Computer abbreviations in the alphabetical order:
S.No. Abbreviations Expansions
1 A/D Analog To Digital.
2 ALU Arithmetic Logic Unit.
3 ASCII American Standard Code For Information Interchange.
4 ASR Automatic Send And Receive.
5 ATM Automated Teller Machine.
Asynchronous Transfer Mode
6 ADSL Asymmetric Digital Subscriber Line
7 AGP Accelerated Graphics Port
8 AI Artificial Intelligence
9 ALGOL Algorithmic Language
10 ANSI American National Standards Institute
11 API Application Program Interface
12 APIPA Automatic Private Internet Protocol Addressing
13 APT Automatically Programmed Tooling
14 ARP Address Resolution Protocol
15 ARPANET Advanced Research Projects Agency Network
16 ASF Advanced Streaming Format
17 ASP Active Server Pages/Application Service Provider
18 ATAPI Advanced Technology Attachment Packet Interface
19 AUI Attachment Unit Interface
20 AVI Audio Video Interleave
21 ATA Advanced Technology Attachment
22 Ajax Asynchronous JavaScript and XML
23 AAC Advanced Audio Coding
24 AOL America Online
25 AT Advanced Technology
S.No. Abbreviations Expansions
1 BCD Binary Coded Decimal
2 BIOS Basic Input/Output System
3 BIS Business Information System
4 BPS Bytes Per Second
5 BASIC Beginner`s All Purpose Symbolic Instruction Code
6 BDPS Business Data Processing Systems
7 BHTML Broadcast Hyper Text Markup Language
8 BIU Bus Interface Unit
9 BMP Bitmap
10 BiDi Bi-Directional
11 bin binary
12 BAL Basic Assembly Language
13 Blog Web Log
14 BMP Basic Multilingual Plane
15 BT BitTorrent / Bluetooth
16 BW Bandwidth
17 B2B Business to Business
18 B2C Business to Consumer
19 BCC Blind Carbon Copy
S.No. Abbreviations Expansions
1 CAD Computer-Aided Design
2 CAM Computer-Aided Manufacturing
3 CASE Computer-Aided Software Engineering
4 CD Compact Disc
5 CDROM Compact Disc Read-Only Memory
6 COBOL Common Business-Oriented Language
7 CPS Characters Per Second
8 CPU Central Processing Unit
9 CROM Control Read-Only Memory
10 CRT Cathode Ray Tube
11 C-DAC Centre For Development Of Advanced Computing
12 CADD Computer Added Drafting And Design
13 CAI Computer Aided Instruction
14 CAR Control Address Register
15 CCIS Common Channel Interoffice Signaling
16 CCNA Cisco Certified Network Associate
17 CD RW Compact Disc ReWritable
18 CDMA Code Division Multiple Access
19 CFG Control Flow Graph
20 CGI Common Gateway Interface/Computer-Generated Imagery
21 CGM Computer Graphics Metafile
22 CIDR Classless InterDomain Routing
23 CIM Computer Integrated Manufacture
24 CISC Complex Instruction Set Computers
25 CIX Commercial Internet Exchange
26 CLR Common Language Runtime
27 CMOS Complementary Metal Oxide Semiconductor
28 CMS Content Management System
29 CMYK Cyan, Magenta, Yellow, Key (Black)
30 CORBA Common Object Request Broker Architecture
31 CPI Clock Cycle Per Instruction
32 CRC Cyclic Redundancy Check
33 CRM Customer Relationship Management
34 CUI Character User Interface
35 CRS Computer Reservations System
36 CLI Command Line Interface
37 CSI Common System Interface
38 CD-R CD-Recordable
39 CSV Comma-Separated Values
40 CC Carbon Copy
41 CSS Cascading Style Sheets
42 C-DAC Centre For Development Of Advanced Computing
S.No. Abbreviations Expansions
1 DBMS Database Management System.
2 DOS Disk Operating System, Denial Of Service
3 DPI Dots Per Inch
4 DTP Desktop Publishing.
5 DVD Digital Versatile Disk.
6 DAC Digital To Analog Converter
7 DAO Data Access Objects
8 DARPANET Defense Advanced Research Projects Agency Network
9 DBA Data Base Administrator
10 DCL Data Control Language
11 DCP Data Communication Processor
12 DDL Data Definition Language
13 DDOS Distributed Denial Of Service
14 DDP Distributed Data Processing
15 DFD Data Flow Diagram
16 DFS Distributed File System
17 DHCP Dynamic Host Control Protocol
18 DHTML Dynamics Hyper Text Markup Language
19 DLC Data Link Control
20 DLL Dynamic Link Library
21 DMA Direct Memory Access
22 DML Data Manipulation Language
23 DMTF Distributed Management Test Force
24 DNA Distributed Internet Architecture
25 DNS Domain Name System
26 DOM Document Object Model
27 DRAM Dynamic Random Access Memory
28 DSL Digital Subscriber Line
29 DSN Digital Subscriber Network
30 DTD Document Type Definition
31 DVD-R DVD-Recordable
32 DAT Digital Audio Tape
33 DB Database
34 DIVX Digital Video Express
35 DVD-ROM DVD-Read Only Memory
36 DVD-RW DVD-Rewritable
37 DDR Double Data Rate
38 DDR – SDRAM Double Data Rate – Synchronous Dynamic Random Access Memory
39 DOC Data Optimizing Computer
40 Doc Document
41 DVI Digital Visual Interface
42 DVR Digital Video Recorder
43 DCA Defence Communication Agency
44 DCOM Distributed Component Object Model
S.No. Abbreviations Expansions
1 E Electronic
2 EEPROM Electronically Erasable Programmable Read-Only Memory
3 EPROM Erasable Programmable Read-Only Memory
4 EAROM Electrically Alterable Read Only Memory
5 EBCDIC Extended Binary Coded Decimal Interchange Code
6 EDC Electronic Digital Computer
7 EFS Encrypted File System
8 ENIAC Electronics Numerical Integrator And Calculator
9 EROM Erasable Read Only Memory
10 EULA End User License Agreement
11 ESD Electrostatic Discharge
12 E-Commerce Electronic Commerce
13 EDGE Enhanced Data Rate for GSM (Global System for Mobile Communication) Evolution
14 EDI Electronic Data Interchange
15 EDP Electronic Data Processing
16 EDSAC Electronic Delay Storage Automatic Calculator
17 EDVAC Electronic Discrete Variable Automatic Compute
18 EB EXA BYTE
19 EiB EXBI BYTE
20 E-Mail Electronic Mail
21 EJB Enterprise Java Beans
22 ERP Enterprise Resource Planning
S.No. Abbreviations Expansions
1 FM Frequency Modulation.
2 FORTRAN Formula Translation
3 FTP File Transfer Protocol
4 FAT File Allocation Table
5 FDD Floppy Disk Drive
6 FDDI Fiber Distributed Data Interface
7 FDMA Frequency Division Multiple Access
8 FIFO First In First Out
9 FLOPS Floating Point Operations Per Second
10 FO Fiber Optics
11 FRAM Ferro Electric Random Access Memory
12 FPS Frames Per Second
13 FAQ Frequently Asked Questions
14 FS File System
15 FSB Front Side Bus
16 FDC Floppy Disk Controller
S.No. Abbreviations Expansions
1 GB Giga Bytes
2 GIGO Garbage In, Garbage Out
3 GUI Graphical User Interface
4 GIF Graphic Interchange Format
5 GML General Markup Language
6 GPL General Public License
7 GPRS General Packet Radio Service
8 GDI Graphical Device Interface
9 GiB GIBI BYTE
10 GBPS Gigabytes/Gigabits Per Second
11 3GP 3rd Generation Project
12 3GPP 3rd Generation Partnership Project
13 GSM Global System for Mobile Communication
14 GHz GigaHertz
S.No. Abbreviations Expansions
1 HTML Hyper Text Markup Language
2 HTTP Hyper Text Transfer Protocol
3 HZ Hertz
4 HDD Hard Disk Drive
5 HFS Hierarchical File System
6 HP Hewlett Packard/Horse Power
7 HPC High Performance Computing/Handheld Personal Computer
8 HPFS High Performance File System
9 HSR Horizontal Scan Rate
10 HD High Density
11 HD DVD High Definition DVD
12 HT Hyper Threading
13 HTM Hierarchical Temporal Memory
14 HDMI High Definition Multimedia Interface
15 HTTPS Hyper Text Transfer Protocol Secure
16 HSDPA High Speed Downlink Packet Access
S.No. Abbreviations Expansions
1 I/O Input / Output
2 IP Internet Protocol/Intellectual Property
3 ISO International Standards Organisation
4 ISP Internet Service Provider
5 IBM International Business Machines
6 IC Integrated Circuit
7 ICMP Internet Control Message Protocol
8 ICS Reduce Instruction Set Computer
9 ICT Information And Communication Technology
10 IDE Integrated Development Environment
11 IE Internet Explorer
12 IGMP Internet Group Management Protocol
13 IL Intermediate Language
14 IOP InputOutput Processor
15 IPX Internetworked Packet Exchange
16 IRAM Integration Ram
17 IRC Internet Relay Chat
18 IRDA Infrared Data Association
19 IRQ Interrupt Request
20 ISAPI Internet Server Application Program Interface
21 ISDN Integrated Services Digital Network
22 ISR Interrupt Service Routine
23 IIS Internet Information Services
24 IM Instant Messaging
25 IMAP Internet Message Access Protocol
26 ISA Industry Standard Architecture /Instruction Set Architecture
27 iSCSI Internet Small Computer System Interface
28 IT Information Technology
29 INTEL Integrated Electronics
30 INFO Information
31 IPV4 Internet Protocol Version 4
32 IPV6 Internet Protocol Version 6
33 ITPL Information Technology Park Limited (India)
S.No. Abbreviations Expansions
1 JCL Job Control Language
2 JDBC Java Data Base Connectivity
3 JHTML Java Within Hyper Text Markup Language
4 JPEG Joint Photographic Experts Group
5 JSP Java Server Pages
6 J2EE Java 2 Enterprise Edition
7 J2ME Java 2 Micro Edition
8 J2SE Java 2 Standard Edition
9 JDK Java Development Kit
10 JRE Java Runtime Environment
11 JS JavaScript
12 JAR Java Archive
13 JAD Java Application Descriptor/Development
S.No. Abbreviations Expansions
1 KB Kilo Byte
2 KBPS Kilo Bytes Per Second
3 kHz Kilohertz
4 Kb Kilobit
5 KVM Keyboard, Video, Mouse
S.No. Abbreviations Expansions
1 LAN Local Area Network
2 LCD Liquid Crystal Display
3 L2TP Layer Two Tunneling Protocol
4 LDAP Light Weight Directory Access Control
5 LIFO Last In First Out
6 LIPS Logical Interfaces Per Second
7 LOC Lines Of Code
8 LSI Large Scale Integration
9 LSP Layered Service Provider
10 LED Light-Emitting Diode
11 LLL Low Level Language
S.No. Abbreviations Expansions
1 MAC Media Access Control
2 MAN Metropolitan Area Network
3 MAU Multi Station Access Unit
4 MB Mega Bytes
5 MBONE Multicast Backbone
6 MBPS Mega Bytes Per Second
7 MBR Master Boot Record
8 MCP Microsoft Certified Professional
9 MCS Multicast Server
10 MDI Multiple Document Interface
11 MDS Microcomputer Development System
12 MICR Magnetic Ink Characters Reader
13 MIMD Multiple Instruction Multiple Data
14 MIME Multipurpose Internet Mail Extensions
15 MIPS Millions Of Instructions Per Second
16 MISD Multiple Instruction Single Data
17 MODEM Modulator And Demodulator
18 MP3 Motion Pictures Experts Group Layer 3
19 MPEG Motion Pictures Experts Group
20 MSDN Microsoft Developer Network
21 MSIIS Microsoft Internet Information Server
22 MTU Maximum Transmission Unit
23 MUDS Multi User Dungeons
24 Mb Megabit
25 MHz Megahertz
26 MIDI Musical Instrument Digital Interface
27 MMU Memory Management Unit
28 MMX Multi-Media Extensions
29 MNG Multiple-image Network Graphics
30 MOSFET Metal-Oxide Semiconductor Field Effect Transistor
31 MS Microsoft
32 MS-DOS Microsoft DOS
33 Mp4 MPEG – 4 AVC (Advanced Video Coding)
34 MFC Microsoft Foundation Classes
35 MFT Master File Table
36 MSIL Microsoft Intermediate Language
37 MSMQ Microsoft Message Queue
38 MSN Microsoft Network
39 MSRAP Microsoft Remote Administration Protocol
40 MSRPC Microsoft Remote Procedure Call
41 MTS Microsoft Transaction Server
S.No. Abbreviations Expansions
1 NAS Network Attached Storage
2 NCP Network Control Protocol
3 NDIS Network Driver Interface Specification
4 NDRO Nondestructive Read Out
5 NNTP Network News Transfer Protocol
6 NTFS New Technology File System
7 NTP Network Time Protocol
8 NIC Network Interface Controller
9 NVRAM Non-Volatile Random Access Memory
10 NAT Network Address Translation
11 NIIT National Institute of Information Technology
12 NASSCOM National Association Of Software & Service Companies
13 NETBEUI Netbios Enhanced User Interface
14 NSFNET National Science Foundation Network
S.No. Abbreviations Expansions
1 OCR Optical Character Recognition
2 OMR Optical Mark Reader
3 OS Operating System/Open Source
4 ODBC Open Data Base Connectivity
5 OLE Object Linking And Embedding
6 ONE Open Network Architecture
7 OOA Object Orient Analysis
8 OOAD Object Oriented Analysis And Design
9 OOP Object Oriented Programming
10 OOPS Object Oriented Programming System
11 OPEN GL Open Graphics Library
12 OSI Open System Interconnection
S.No. Abbreviations Expansions
1 P2P Peer To Peer
2 PAN Personal Area Network
3 PC Personal Computer
4 PCB Printed Circuit Board
5 PDF Portable Document Format
6 PIN Personal Identification Number
7 PPP Point-To-Point Protocol
8 PROM Programmable Read-Only Memory
9 PCI Peripheral Component Interconnect
10 PCMCIA Personal Computer Memory Card International Association
11 PDA Personal Digital Assistant
12 PDL Page Description Language
13 PDU Protocol Data Unit
14 PIC Programming Interrupt Control
15 PILOT Programmed Inquiry Learning Or Teaching
16 PLA Programmable Logic Array
17 PLC Programmable Logic Controller
18 PNG Portable Network Graphics
19 PNP Plug And Play
20 PP Peer To Peer Protocol
21 PPTP Point To Point Tunneling Protocol
22 PATA Parallel ATA
23 PC DOS Personal Computer Disk Operating System
24 PCIe PCI Express
25 PERL Practical Extraction and Reporting Language
26 PGA Pin Grid Array
27 PHP PHP: Hypertext Preprocessor
28 POST Power-On Self Test
29 PPI Pixels Per Inch
30 PS/2 Personal System/2
31 PSU Power Supply Unit
32 PPPoA Point to Point Protocol Over ATM
33 PPPoE Point to Point Protocol Over Ethernet
34 PB PETA BYTE
35 PiB PEBI BYTE
36 PING Packet Internet/Internetwork Groper
37 PS Post Script
S.No. Abbreviations Expansions
1 RAM Random Access Memory
2 ROM Read Only Memory
3 RADSL Rate Adaptive Digital Subscribes Line
4 RAID Redundant Array Of Independent Disks
5 RAMDAC Random Access Memory Digital To Analog Converter
6 RAS Remote Access Network
7 RD RAM Rambus Dynamic Random Access Memory
8 RDBMS Relational Data Base Management System
9 RDO Remote Data Objects
10 RDP Remote Desktop Protocol
11 RFC Request For Comments
12 RGB Red Green Blue
13 RISC Reduced Instruction Set Computer
14 RIP Raster Image Processor
15 RPC Remote Procedure Call
16 RTC Real Time Clock
17 RTF Rich Text Format
18 RTOS Real Time Operating System
19 RAD Rapid Application Development
20 RAIT Redundant Array of Inexpensive Tapes
21 RF Radio Frequency
22 ROM-DOS Read Only Memory - Disk Operating System
23 RPM Revolutions Per Minute
S.No. Abbreviations Expansions
1 SAM Security Access Manager
2 SAP Service Access Point, Systems Applications Products
3 SD RAM Synchronous Dynamic Random Access Memory
4 SDD Software Design Description
5 SDK Software Development Kit
6 SDL Storage Definition Language
7 SDN Integrated Service Digital Network
8 SDRAM Static Dynamic Random Access Memory
9 SDSL Symmetric Digital Subscribes Line
10 SG RAM Synchronous Graphics Random Access Memory
11 SGML Standard Generalized Markup Language
12 SIM Subscriber Identification Module
13 SIMD Single Instruction Multiple Data
14 SISD Single Instruction Single Data
15 SIU Serial Interface Unit
16 SMP Symmetric Multi-Process
17 SMS Short Message Service
18 SMTP Simple Mail Transfer Protocol
19 SNA System Network Architecture
20 SNAP Sub Network Access Protocol
21 SNMP Simple Network Management Protocol
22 SNOBOL String Oriented Symbolic Language
23 SOAP Simple Object Access Protocol
24 SPX Sequenced Packet Exchange
25 SQA Statistical Quality Assurance
26 SQL Structured Query Language
27 SRAM Static Random-Access Memory
28 SRS Software Requirements Specification
29 SATA Serial ATA
30 SCSI Small Computer System Interface
31 SFTP Secure FTP /Simple File Transfer Protocol
32 SHDSL Single-pair High-speed Digital Subscriber Line
33 SIMM Single Inline Memory Module
34 SPI Serial Peripheral Interface
Stateful Packet Inspection
35 SVG Scalable Vector Graphics
36 SVGA Super Video Graphics Array
37 SMPS Switch Mode Power Supply
38 SW Software
39 SACK Selective Acknowledgements
40 SCMP Software Configuration Management Plan
41 STP Shielded Twisted Pair
42 SVVP Software Verification And Validation Plan
S.No. Abbreviations Expansions
1 TCP/IP Transmission Control Protocol/Internet Protocol
2 TDMA Time Division Multiple Access
3 TTL Transistor-Transistor Logic
4 TB Tera Byte
5 Tmp Temporary
6 TTF TrueType Font
7 TiB TEBI BYTE
8 TBPS Tera Bytes Per Second
9 TXT Text
10 TAPI Telephony Application Programming Interface
11 TDI Transport Data Interface
12 TPM Transactions Processing Monitor
13 TSR Terminate And Stay Residents
S.No. Abbreviations Expansions
1 UDD User Datagram Protocol
2 UDP User Datagram Protocol
3 UNC Universal Naming Convention
4 UNIX Uniplexed Information And Computer Systems
5 UPS Uninterruptible Power Supply
6 URI Uniform Resource Identifier
7 URL Uniform Resource Locator
8 USB Universal Serial Bus
9 UTF Unicode Transformation Format
10 UTP Unshielded Twisted Pair
11 UMTS Universal Mobile Telecommunication System
12 UHF Ultra High Frequency
13 UNIVAC Universal Automatic Computer/Universal Non Integrated Vacuum Actuated Computer
14 UI User Interface
15 UML Unified Modelling Language
16 USRT Universal Synchronous Receiver Transmitted
S.No. Abbreviations Expansions
1 VDU Visual Display Unit
2 VGA Video Graphics Array
Video/Visual Graphic Adapter
3 VPN Virtual Private Network
4 VPU Visual Processing Unit
5 VB Visual Basic
6 VBA Visual Basic for Applications
7 VBS Visual Basic Script
8 VAN Value Added Network
9 VIRUS Vital Information Resource Under Seized
10 VCD Video Compact Disk
11 VHF Very High Frequency
12 VOIP Voice Over Internet Protocol
13 VRAM Video Random Access Memory
14 VRML Virtual Reality Modeling Language
15 VAST Very Small Aperture Terminal
16 VC++ Visual C++
17 VDL View Definition Language
18 VHS Video Home System
19 VLIW Very Long Instruction Words
20 VLSI Very Large Scale Integrated Circuits
21 VS Visual Studio
22 VSNL Videsh Sanchar Nigam Limited
23 VVR Software Validation And Validation Report
24 VXD Virtual Device Driver
S.No. Abbreviations Expansions
1 WAN Wide Area Network
2 Wi-Fi Wireless Fidelity
3 WWW World Wide Web
4 WAP Wireless Access Point /Wireless Application Protocol
5 WLAN Wireless Local Area Network
6 WPAN Wireless Personal Area Network
7 WMA Windows Media Audio
8 WMV Windows Media Video
9 WORM Write Once Read Many
10 WBMP Wireless Bitmap Image
11 WML Wireless Markup Language
12 WINS Windows Internet Name Service
13 W3C World Wide Web Consortium
14 WAIS Wide Area Information Servers
15 WBEM WebBase Enterprise Management
16 WDM Wave Division Multiplexing
17 WHQL Windows Hardware Quality Lab
18 WINDOWS ME Windows Millennium Edition
19 WINDOWS NT Windows New Technology
20 WINDOWS XP Windows Experienced
21 WMI Windows Management Instrumentation
22 WSH Windows Script Host
23 WYSIWYG What You See Is What You Get
S.No. Abbreviations Expansions
1 XML Extensible Markup Language.
2 XT Extended Technology
3 XMF Extensible Music File
4 XMS Extended Memory Specification
5 XHTML Extensible Hyper Text Markup Language
6 XSL Extensible Style Language
S.No. Abbreviations Expansions
1 Y2K Year Two Thousand
2 Yahoo Yet Another Hierarchical Officious Oracle
3 YB YOTTA BYTE
4 YiB YOBI BYTE
S.No. Abbreviations Expansions
1 ZB ZETTA BYTE
2 ZiB Zebi Byte
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