.apk

Android package file

.bat

Batch file

.bin

Binary file

.cgi

Common Gateway Interface Script

.com

MS-DOS command file

.exe

Executable file

.jar

Java Archive file

.py

Python file

.wsf

Windows Script File

.aif

AIF/Audio Interchange audio file

.cda

CD audio track file

.iff

Interchange File Format

.mid or .midi

MIDI audio file.

.mp3

MP3 audio file

.mpa

MPEG-2 audio file

.wav

WAVE file

.wma

Windows Media audio file

.wpl

Windows Media Player playlist

.avi

Audio Video Interleave File

.flv

Adobe Flash Video File

.h264

H.264 video File

.m4v

Apple MP4 video File

.mkv

Matroska Multimedia Container

.mov

Apple QuickTime movie File

.mp4

MPEG-4 Video File

.mpg or .mpeg

MPEG video File

.rm

Real Media File

.swf

Shockwave flash File

.vob

DVD Video Object File

.wmv

Windows Media Video File

.3g2

3GPP2 Multimedia File

.3gp

3GPP multimedia File

.doc and .docx

Microsoft Word file

.odt

OpenOffice Writer document file

.msg

Outlook Mail Message

.pdf

PDF file

.rtf

Rich Text Format File

.tex

A LaTeX document file

.txt

Plain text file

.wks and .wps

Microsoft Works Word Processor Document file

.wpd

WordPerfect document

.ods

OpenOffice Calc spreadsheet file

.xlr

Microsoft Works spreadsheet file

.xls

Microsoft Excel file

.xlsx

Microsoft Excel Open XML spreadsheet file

.key

Keynote presentation

.odp

OpenOffice Impress presentation file

.pps

PowerPoint slide show

.ppt

PowerPoint presentation

.pptx

PowerPoint Open XML presentation

.accdb

Access 2007 Database File

.csv

Comma separated value file

.dat

Data file

.db or .dbf

Database file

.log

Log file

.mdb

Microsoft Access database file

.pdb

Program Database

.sav

Save file (e.g. game save file)

.sql

SQL/Structured Query Language database file

.tar

Linux / Unix tarball file archive

.bak

Backup file

.cab

Windows Cabinet file

.cfg

Configuration file

.cpl

Windows Control panel file

.cur

Windows cursor file

.dll

DLL file

.dmp

Dump file

.drv

Device driver file

.icns

macOS X icon resource file

.ico

Icon file

.ini

Initialization file

.lnk

Windows shortcut file

.msi

Windows installer package

.sys

Windows system file

.tmp

Temporary file

.asp and .aspx

Active Server Page file

.cer

Internet security certificate

.cfm

ColdFusion Markup file

.cgi or .pl

Perl script file

.css

Cascading Style Sheet file

.htm and .html

HTML/Hypertext Markup Language file

.js

JavaScript file

.jsp

Java Server Page file

.part

Partially downloaded file

.php

PHP Source Code file

.rss

RSS/Rich Site Summary file

.xhtml

XHTML / Extensible Hypertext Markup Language file

.ai

Adobe Illustrator file

.bmp

Bitmap image File

.gif

GIF/Graphical Interchange Format image

.ico

Icon file

.jpeg or .jpg

Joint Photographic Experts Group

.max

3ds Max Scene File

.obj

Wavefront 3D Object File

.png

PNG / Portable Network Graphic image

.ps

PostScript file

.psd

PSD / Adobe Photoshop Document image

.svg

Scalable Vector Graphics file

.tif or .tiff

Tagged Image File Format

.3ds

3 Dimension Studio Scene

.3dm

Rhino 3D Model

No.

Abbreviation

Full-Form

1

 RAM

Random Access Memory

2

ROM

Read Only Memory

3

CPU

Central Processing Unit

4

URL

Uniform Resource Locator

5

USB

Universal Serial Bus

6

VIRUS

Vital Information Resource Under Siege

7

TCP

Transmission Control Protocol

8

UPS

Uninterruptible Power Supply

9

SATA

Serial Advanced Technology Attachment

10

 PSU

Power Supply Unit

11

SMPS

Switched-Mode Power Supply

12

CD

Compact Disc

13

DVD

Digital Versatile Disc

14

CRT

Cathode Ray Tube

15

DEC

Digital Equipment Corporation

16

SAP

System Application and Products

17

PNG

Portable Network Graphics

18

IP

Internet Protocol

19

GIS

Geographical Information system

20

DDS

Digital Data Storage

21

CAD

Computer Aided Design

22

ACPI

Advanced Configuration and Power Interface

23

AGP

Accelerated Graphics Port

24

APM

Advanced Power Management

25

APIPA

Automatic Private Internet Protocol Addressing

26

HTTP

Hyper Text Transfer Protocol

27

HTTPS

Hyper Text Transfer Protocol Secure

28

GPU

Graphics Processing Unit

29

GDI

Graphics Device Interface

30

ICP

Internet Cache Protocol

31

GIGO

Garbage In Garbage Out

32

GMAIL

Graphical Mail

33

CAN

Campus Area Network

34

CAL

Computer Aided Leering

35

GPL

General Public License

36

GCR

Group Code Recording

37

MSN

Microsoft Networks

38

BCC

Blind Carbon Copy

39

VDI

Virtual Desktop Infrastructure

40

MPEG

Moving Picture Experts Group

41

TPU

Tensor Processing Unit

42

PSD

Photoshop Document

43

DPI

Dots Per Inch

44

FYA

For Your Action

45

CRS

Computer Reservation System

46

BFD

Binary File Descriptor

47

ABR

Available Bit Rate

48

GBPS

Gigabits Per Second

49

PING

Packet InterNet Groper

50

CSMA

Carrier Sense Multiple Access

51

AD

Active Directory

52

ADC

Analog to Digital Converter

53

BGP

Border Gateway Protocol

54

CSI

Common System Interface

55

DHCP

Dynamic Host Configuration Protocol

56

OSI

Open Systems Interconnection

57

LAN

Local Area Network

58

WAN

Wide Area Network

59

MAN

Metropolitan Area Network

60

PAN

Personal Area Network

61

MAC

Media Access Control

62

OMR

Optical Mark Recognition

63

NIC

Network Interface Card

64

LDAP

Lightweight Directory Access Protocol

65

UART

Universal Asynchronous Receiver-Transmitter

66

DCE

Distributed Computing Environment

67

PFA

Please Find Attached

68

HCI

Human Computer Interaction

69

FHS

Filesystem Hierarchy Standard

70

FCS

Frame Check Sequence

71

DVE

Digital Video Effects

72

DLL

Data Link Layer

73

CSV

Comma Separated Values

74

CTCP

Client–to–Client Protocol

75

ABI

Application Binary Interface

76

MIS

Management Information System

77

BIOS

Basic Input Output System

78

SMTP

Simple Mail Transfer Protocol

79

LTE

Long Term Evolution

80

AHA

Accelerated Hub Architecture

81

ALU

Arithmetic Logical Unit

82

FPU

Floating Point Unit

83

FXP

File Exchange Protocol

84

HID

Human Interface Device

85

IOS

iPhone Operating System

86

PATA

Parallel Advanced Technology Attachment

87

DDR

Double Data Rate

88

DFS

Distributed File System

89

MIPS

Million Instructions Per Second

90

MMC

Microsoft Management Console

91

VGCT

Video Graphics Character Table

92

WBMP

Wireless BitMap Image

93

PCM

Pulse-Code Modulation

94

WMA

Windows Media Audio

95

RAS

Remote Access Service

96

HTM

Hierarchical Temporal Memory

97

SIS

Security and Intelligence Services

98

LBA

Logical Block Addressing

99

CIDR

Classless Inter-Domain Routing

100

MIMO

Multiple-Input Multiple Output

101

PLC

Programmable Logic Controller

102

SCSI

Small  Computer System Interface

103

NVRAM

Non-Volatile Random-Access Memory

104

BLOB

Binary large Object

105

VPN

Virtual Private Network

106

SFF

Small Form Factor

107

CAI

Computer–Aided Instruction

108

EMP

Electro-Magnetic Pulse

109

EIDE

Enhanced Integrated Drive Electronics

110

AAC

Advanced Audio Codec

111

IIOP

Internet Inter-ORB Protocol

112

ASL

Age Sex Location

113

MBSA

Microsoft Baseline Security Analyzer

114

ZIP

Zig-zag In-line Package

115

HSPA

High Speed Packet Access

116

VFS

Virtual File System

117

SIMD

Single Instruction Multiple Data

118

IPC

Inter-Process Communication

119

DAC

Discretionary Access Control

120

DKIM

Domain Keys Identified Mail

121

WIFI

Wireless Fidelity

122

PTP

Picture Transfer Protocol

123

IGRP

Interior Gateway Routing Protocol

124

HIG

Human Interface Guidelines

125

UNIVAC

Universal Automatic  Computer

126

CIFS

Common Internet File System

127

HAL

Hardware Abstraction Layer

128

IPV6

Internet Protocol Version 6

129

CNR

Communication Network Riser

130

EISA

Extended Industry Standard Architecture

131

RPM

Red-Hat Package Manager

132

DLT

Distributed Ledger Technology

133

ISH

Information Super Highway

134

BY

Bronto-bytes

135

DTS

Digital Theater System

136

MSB

Most Significant Bit

137

HVD

Holographic Versatile Disk

138

MOSFET

Metal-Oxide Semiconductor Field Effect Transistor

139

AMR

Adaptive Multi-Rate

140

CMD

Command

141

BCD

Binary Coded Decimal

142

DMA

Direct Memory Access

143

EB

Exa-bytes

144

AVI

Audio Video Interleave

145

WLAN

Wireless Local Area Network

146

CAM

Computer Aided Manufacturing

147

RIFF

Resource Interchange File Format

148

TFTP

Trivial File Transfer Protocol

149

WUSB

Wireless Universal Serial Bus

150

HHD

Hybrid Hard Drive

151

HSDPA

High Speed Downlink Packet Access

152

AST

Abstract Syntax Tree

153

MSD

Most significant Digit

154

IRQ

Interrupt Request

155

DVI

Digital Visual Interface

156

SPARC

Scalable Processor Architecture

157

URI

Uniform Resource Identifier

158

EPROM

Erasable Programmable Read Only Memory

159

SAN

Storage Area Network

160

EBCDIC

Extended Binary Coded Decimal Interchange Code

161

MVS

Multiple Vendor System

162

NAS

Network Attached Storage

163

BPS

Bits Per Second

164

LPX

Low Profile Extension

165

HCL

Hardware Compatibility List

166

RTS

Real Time Streaming

167

RAID

Redundant Array of Inexpensive Disks

168

MUI

Multilingual User Interface

169

MFD

Multi-Function Device

170

CISC

Complex Instruction Set Computer

171

MBR

Master Boot Record

172

BINAC

Binary Automatic Computer

173

SGRAM

Synchronous Graphics Random Access Memory

174

DLP

Digital Light Processing

175

UEFI

Unified Extensible Firmware Interface

176

LLC

Logical Link Control

177

DOC

Document (Microsoft Corporation)

178

ARPANET

Advanced Research Projects Agency Network

179

ACL

Access Control List

180

RAIT

Redundant Array of Inexpensive Tapes

181

MMX

Multi-Media Extensions

182

STP

Spanning Tree Protocol

183

MLI

Multiple Link Interface

184

RIP

Routing Information Protocol

185

AIFF

Audio Interchange File Format

186

RMA

Returned Materials Authorization

187

EGP

Exterior Gateway Protocol

188

XMF

Extensible Music File

189

MTBF

Mean Time Between Failure

190

MIME

Multipurpose Internet Mail Extensions

191

SRAM

Static Random-Access Memory

192

SDR

Software-Defined Radio

193

PAP

Password Authentication Protocol

194

VRAM

Video Random Access Memory

195

WAP

Wireless Application Protocol

196

TGT

Ticket Granting Ticket

197

GIF

Graphics Interchange Format

198

TPM

Trusted Platform Module

199

SPSS

Statistical Package for the Social Sciences

200

ULSI

Ultra Large-Scale Integration

201

EIGRP

Enhanced Interior Gateway Routing Protocol

202

CDN

Content Delivery Network

203

NMI

Non-Maskable Interrupt

204

PPI

Pixels Per Inch

205

RJ45

Registered Jack 45

206

SEC

Single Edge Connector

207

BER

Bit Error Rate

208

OOPS

Object-Oriented Programming System

209

ATA

Advanced Technology Attachment

210

RISC

Reduced Instruction Set Computer

211

NFS

Network File System

212

SFC

System File Checker

213

ICR

Intelligent Character Recognition

214

BTX

Balanced Technology Extended

215

DOS

 Disk Operating System

216

CTS

Clear to Send

217

AMD

Advanced Micro Devices

218

DVD

Digital Video Disc

219

CD-R

Compact Disk – Recordable.

220

BAL

Basic Assembly Language

221

UTF

Unicode Transformation Format

222

MIDI

Musical Instrument Digital Interface

223

BAT

Microsoft Batch Processing

224

VT

Video Terminal

225

HP

Hewlett Packard

226

URN

Uniform Resource Name

227

D2D

 Device to Device

228

DSHD

Double Sided High Density

229

FDC

Floppy Disk Controller

230

SDN

Service Delivery Network

231

SBU

Standard Build Unit

232

MPL

Mozilla Public License

233

ENIAC

Electronic Numerical Integrator and Computer

234

CAQA

Computer–Aided Quality Assurance

235

ASF

Advanced Systems Format

236

VM

Virtual Machine

237

Mac

Macintosh

238

OS

Operating System

239

MNG

Multiple-image Network Graphics

240

CD-ROM

Compact Disk-Read Only Memory

241

MSB

Most Significant Byte

242

TCP/IP

Transmission Control Protocol/Internet Protocol

243

DMI

Desktop Management Interface

244

NTP

Network Time Protocol

245

PINE

Program for Internet News and Email

246

SSL

Secure Sockets Layer

247

BCR

Bar Code Reader

248

SPI

Serial Peripheral Interface

249

KBPS

Kilobits Per Second

250

TSI

Time Slot Interchange

251

ABC

Atanasoff-Berry Computer

252

YB

Yotta Byte

253

ZB

Zetta-bytes

254

WDDM

Windows Display Driver Model

255

ZIF

Zero-Insertion-Force

256

RDBMS

Relation Database Management System

257

MSI

Microsoft Installer

258

ISP

Internet Service Provider

259

WAV

Waveform Audio

260

TPS

Transaction Per Second

261

ISV

Independent Software Vendor

262

SXGA

Super Extended Graphics Array

263

GP

Graphics port

264

BGA

Ball Grid Array

265

SIS

Safety Instrumented System

266

CGI

Common Gateway Interface

267

PDF

Portable Document Format

268

MMU

Memory Management Unit

269

PIC

Peripheral Interface Controller

270

NIU

Network Interface Unit

271

TPS

Transaction Processing System

272

VLSI

Very Large-Scale Integration

273

ESD

Electro Static Discharge

274

MAPI

Messaging Application Program Interface

275

KB

Kilo-bytes

276

DSL

Domain–Specific Language

277

PB

Peta-bytes

278

NAP

Network Access Point

279

MS-DOS

Microsoft Disk Operating System

280

WMV

Windows Media Video

281

MFA

Multi-Factor Authentication

282

GUI

Graphical User Interface

283

RIS

Remote Installation Service

284

ASCII

American Standard Code for Information Interchange

285

ELF

Executable and Linkable Format

286

WWAN

Wireless Wide Area Network

287

DFD

Data Flow Diagram

288

IRC

Internet Relay Chat

289

PC

Personal Computer

290

SDL

Software and Documentation Localization

291

WINS

Windows Internet Name Service

292

NOS

Network Operating System

293

UNICS

UNiplexed Information Computing System

294

DVR

Digital Video Recorder

295

XMS

Extended Memory Specification

296

LSI

Large-Scale Integration

297

STP

Shielded Twisted Pair

298

PCB

Process Control Block

299

AGA

Advanced Graphics Architecture

300

HSUPA

High-Speed Uplink Packet Access

301

ICS

Internet Connection Sharing

302

SOA

Service Oriented Architecture

303

WWW

World Wide Web

304

DLL

Dynamic Link Library

305

DAP

Direct Access Protocol

306

WMF

Windows Metafile

307

EVDO

Evolution Data Optimized Or Evolution Data Only

308

FAT

File Allocation Table

309

DTE

Data Terminal Equipment

310

PAL

Phase Alternation Line

311

VGA

Video Graphics Array

312

HSSI

High-Speed Serial Interface

313

SIMM

Single In-Line Memory Module

314

IPX

Internetwork Packet Exchange

315

BWF

Broadcast Wave Format

316

CRIMM

Continuity-Rambus Inline Memory Module

317

OOP

Object Oriented programming

318

RTOS

Real Time  Operating System

319

DBSN

Database Source Name

320

IHV

Independent Hardware Vendor

321

ISR

Interrupt Service Routine

322

SOAP

Simple Object Access Protocol

323

FTP

File Transfer Protocol

324

DRAM

Dynamic Random-Access Memory

325

BSOD

Blue Screen of Death

326

HTX

Hyper Transport Expansion

327

LSTM

Long Short-Term Memory

328

DIVX

DIgital Video Express

329

UAC

User Account Control

330

CASE

Computer-Aided Software Engineering

331

HDMI

High Definition Multimedia Interface

332

VDC

Video Display Controller

333

AVC

Advanced Video Coding

334

CGA

Color Graphics Array

335

DPMS

Display Power Management Signaling

336

DBA

DataBase Administrator

337

P2P

Peer-To-Peer

338

MSI

Medium Scale Integration

339

EPP

Enhanced Parallel Port

340

EFS

Encrypting File System

341

MHz

Megahertz

342

WPAN

Wireless Personal Area Network

343

CAN

Controller Area Network

344

VDU

Video Display Unit

345

JPG

Joint Photographic Expert Group

346

MB

Mega-bytes

347

ENI

Elastic Network Interface

348

VPU

Visual  Processing Unit

349

MTP

Media Transfer Protocol

350

MDI

Multiple Document Interface

351

TDR

Time Domain Reflectometer

352

WUXGA

Wide Ultra Extended Graphics Array

353

NAP

Network Access Protection

354

DWM

Desktop Window Manager

355

ERP

Enterprise Resource Planning

356

PPT

PowerPoint Presentation

357

LSB

Least Significant Byte

358

CCD

Charged Coupled Device

359

VCR

Video Cassette Recorder

360

EEPROM

Electrically Erasable Programmable Read-Only Memory

361

CRC

Cyclic Redundancy Check

362

XGA

Extended Graphics Array

363

LSB

Least Significant Bit

364

ZISC

Zero Instruction Set Computer

365

ISA

Instruction Set Architecture

366

HPC

High-Performance Computing

367

MSDN

Microsoft Developer Network

368

BPI

Bytes Per Inch

369

SVGA

Super Video Graphics Array

370

RDF

Resource Description Framework

371

MFP

Multi-Function Product

372

FCPGA

Flip Chip Pin Grid Array

373

ASR

Automated System Recovery

374

VAN

Value-Added Network

375

PIO

Programmed Input/Output

376

RGB

Red, Green, Blue

377

FDMA

Frequency-Division Multiple Access

378

SWF

Shock Wave Flash

379

EOF

End of File

380

POP

Post Office Protocol

381

CBEMA

Computer Business Equipment Manufacturers Association

382

GB

Giga-bytes

383

EDP

Electronic Data Processing

384

DIMM

Dual In-Line Memory Module

385

VM

Virtual Memory

386

SHDSL

Single-pair High-speed Digital Subscriber Line

387

WEP

Wired Equivalent Privacy

388

MBCS

Multi Byte Character Set

389

IPV4

Internet Protocol Version 4

390

MCR

Multivariant Curve Resolution

391

MTA

Mail Transfer Agent

392

BOSS

Bharat Operating System Solutions

393

ISC

Internet Storm Center

394

POST

Power on self-test

395

DTR

Data Terminal Ready

396

SMBIOS

System Management BIOS

397

HPFS

High Performance File System

398

SNMP

Simple Network Management Protocol

399

IIS

Internet Information Services

400

VPG

Virtual Private Gateway

401

CUA

Common User Access

402

NID

Network Interface Device

403

HDD

Hard Disk Drive

404

IMAP

Internet Message Access Protocol

405

VLC

Video LAN Client

406

ERD

Emergency Repair Disk

407

WPA

Wireless Protected Access

408

IOS

Internetwork Operating System

409

PKI

Public key Infrastructure

410

UDP

User Datagram Protocol

411

ISA

Industry Standard Architecture

412

TPDU

Transaction Protocol Data Unit

413

M3G

Mobile 3D Graphics

414

DTP

Desktop Publishing

415

PCI

Peripheral Component Interconnect

416

CAE

Computer–Aided Engineering

417

NTFS

New Technology File System

418

FDD

Floppy  Disk Drive

419

IPP

Internet Printing Protocol

420

VLAN

Virtual Local Area Network

421

VXLAN

Virtual Extensible Local Area Network

422

CTL

Computation Tree Logic

423

DAT

Digital Audio Tape

424

BiDi

Bi–Directional

425

SVG

Scalable Vector Graphics

426

ECP

Extended Capabilities Port

427

TB

Tera-bytes

428

CMOS

Complementary Metal–Oxide–Semiconductor

429

OCR

Optical Character Reader

430

JPEG

Joint Photographic Experts Group

431

SONET

Synchronous Optical Networking

432

CCS

Common Command Set

433

CUPS

Common Unix Printing System

434

ENIAC

Electronic Numerical Integrator and Compute

435

IVR

Interactive Voice Response

436

HTPC

Home Theatre Personal Computer

437

HD

High Definition

438

EVC

Ethernet Virtual Circuit

439

NMS

Network Management System

440

UTP

Unshielded Twisted Pair-Cable

441

FDDI

Fiber Distributed Data Interface

442

HAN

Home Area Network

443

XMPP

Extensible Messaging and Presence Protocol

444

ISCSI

Internet Small Computer Storage Interface

445

PDP

Plasma Display Panel

446

VOIP

Voice Over Internet Protocol