File Formats & Extensions | Computer Science for Class 7

Some Important Video File Formats

• 3GP – Third Generation Partnership Project
• AVI- Microsoft Audio Visual Interleaved
• DIVX- Digital Video Express Encoded Movie Files
• FLV- Flash Video
• MKV – Matroska Video File
• MPEG- Motion Picture Experts Group file interchange format
• MP4- MPEG-4 Video Stream MTS- AVCHD Video File VOB- Video Object File
• WMV- Windows Media Video

Some Important Audio File Formats

• MIDI- Musical Instrument Digital Interface MIDI-sequention Sound
• MP3- MPEG Layer 3 Audio
• WMA- Windows Media (Metafile)

Some Important Image File Formats

• BMP- Microsoft Windows BITMAP
• GIF- Graphics Interchange Format
• JPEG, JPG- Joint Photographic Experts Groupt
• PNG- Portable Network Graphics
• PSD- Adobe Photoshop Document
• TIF- Tagged Image File Format
• AI- Adobe Illustrator File
• SVG- Scalable Vector Graphics File
• VSD- Microsoft Visio Document

Some Important Document File Formats

• DOC- Microsoft Word Binary File Format
• DOCX- Microsoft Word Open XML Document
• ODT- OpenDocument Text Document
• PDF- Portable Document Format
• RTF- Rich Text Format
• SWF- Shockwave Flash Movie
• XLS- Microsoft Excel Spreadsheet
• XML- Extensible Markup Language
• CSV- Comma Separated Values File
• ODS- OpenDocument Spreadsheet
• XLSX- Microsoft Excel Open XML Spreadsheet
• KEY- Keynote Presentation
• PPT- Microsoft PowerPoint
• PPTX- Microsoft PowerPoint 2007 XML
• PPS- PowerPoint Slide Show

MISC

• DAT- Data File
• EXE- Executable file
• TTF- TrueType Font
• VCF- vCard File

Abbrivations related to computer
A

• Al – Artificial intelligence
• ALGOL – Algorithmic Language
• ARP – Address resolution Protocol
• ASCII – American Standard Code for Information Interchange

B

• BINAC – Binary Automatic Computer
• BCC – Blind Carbon Copy
• Bin – Binary
• BASIC – Beginner’s All-purpose Symbolic Instruction Code
• BIOS – Basic Input Output System
• Bit – Binary Digit
• BSNL – Bharat Sanchar Nigam Limited

C

• CC – Carbon Copy
• CAD – Computer Aided Design
• COBOL – Common Business Oriented Language
• CD – Compact Disc
• CRT – Cathode Ray Tube
• CDR – Compact Disc Recordable
• CDROM – Compact Disc Read Only Memory
• CDRW – Compact Disc Rewritable
• CDR/W – Compact Disk Read/Write

D

• DBA – Data Base Administrator
• DBMS – Data Base Management System
• DNS – Domain Name System
• DPI – Dots Per Inch
• DRAM – Dynamic Random Access Memory
• DVD – Digital Video Disc/Digital Versatile Disc
• DVDR – DVD Recordable
• DVDROM – DVD Read Only Memory
• DVDRW – DVD Rewritable
• DVR – Digital Video Recorder
• DOS – Disk Operating System

E

• EBCDIC – Extended Binary Coded Decimal Interchange Code
• e-Commerce – Electronic Commerce
• EDP – Electronic Data Processing
• EMEePmRoOryM – Electrically Erasable Programmable Read Only
• ELM/e-Mail – Electronic Mail
• ENIAC – Electronic Numerical Integrator and Computer
• EOF – End Of File
• EPROM – Erasable Programmable Read Only Memory
• EXE – Executable

F

• FAX – Far Away Xerox/ facsimile
• FDC – Floppy Disk Controller
• FDD – Floppy Disk Drive
• FORTRAN – Formula Translation
• FS – File System
• FTP – File Transfer Protocol

G

• Gb – Gigabit
• GB – Gigabyte
• GIF – Graphics Interchange Format
• GSM – Global System for Mobile Communication

H

• HDD – Hard Disk Drive
• HP – Hewlett Packard
• HTML – Hyper Text Markup Language
• HTTP – Hyper Text Transfer Protocol

I

• IBM – International Business Machine
• IM – Instant Message
• IMAP – Internet Message Access Protocol
• ISP – Internet Service Provider

J

• JPEG – Joint Photographic Experts Group

K

• Kb – Kilobit
• KB – Kilobyte
• KHz – Kilohertz
• Kbps – Kilobit Per Second

L

• LCD – Liquid Crystal Display
• LED – Light Emitting Diode
• LPI – Lines Per Inch
• LIS – Large Scale Integration

M

• Mb – Megabit
• MB – Megabyte
• MPEG – Moving Picture Experts Group
• MMS – Multimedia Message Service
• MICR – Magnetic Ink Character reader
• MIPS – Million Instructions Per Second

N

• NIC – Network Interface Card
• NOS – Network Operating System

O

• OMR – Optical Mark Reader
• OOP – Object Oriented Programming
• OSS – Open Source Software

P

• PAN – Personal Area Network
• PC – Personal Computer
• PDA – Personal Digital Assistant
• PDF – Portable Document Format
• POS – Point Of Sale
• PNG – Portable Network Graphics
• PPM – Pages Per Minute
• PPP – Point-to-Point Protocol
• PROM – Programmable Read Only Memory
• PSTN – Public Switched Telephone Network
• POST – Power On Self Test
• PING – Packet Internet Gopher

R

• RAM – Random Access Memory
• RDBMS – Relational Data Base Management System
• RIP – Routing Information Protocol
• RTF – Rich Text Format

S

• SMTP – Simple Mail Transfer Protocol
• SQL – Structured Query Language
• SRAM – Static Random Access Memory
• SNMP – Simple Network Management Protocol
• SIM – Subscriber Identification Module

T

• TCP – Transmission Control Protocol
• TB – Tera Bytes

U

• UPS – Uninterrupted Power SupplyURI – Uniform Resource Identifier
• URL – Uniform Resource Locator
• USB – Universal Serial Bus
• ULSI – Ultra Large Scale Integration
• UNIVAC – Universal Automatic Computer

V

• VAR – Variable
• VGA – Video Graphics Array
• VSNL – Videsh Sanchar Nigam Limited
• VDU – Visual Display Unit

W

• Wi-Fi – Wireless Fidelity
• WLAN – Wireless Local Area Network
• WPA – Wi-Fi Protected Access
• WWW – World Wide Web
• WORM – Write Once Read Many

X

• XHTML – eXtensible Hyper text Markup Language
• XML – eXtensible Markup language

Z

• ZB – Zeta Byte