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* VIRUS - Vital Information Resource UnderSeized.

* 3G -3rd Generation.

* GSM - Global System for Mobile Communication.

* CDMA - Code Divison Multiple Access.

* UMTS - Universal MobileTelecommunication System.

* SIM - Subscriber Identity Module .

* AVI = Audio Video Interleave

* RTS = Real Time Streaming

* SIS = Symbian OS Installer File

* AMR = Adaptive Multi-Rate Codec

* JAD = Java Application Descriptor

* JAR = Java Archive

* JAD = Java Application Descriptor

* 3GPP = 3rd Generation Partnership Project

* 3GP = 3rd Generation Project

* MP3 = MPEG player lll

* MP4 = MPEG-4 video file

*AAC = Advanced Audio Coding

* GIF= Graphic InterchangeableFormat

* JPEG = Joint Photographic Expert Group

* BMP = Bitmap

* SWF = Shock Wave Flash

* WMV = Windows Media Video

* WMA = Windows Media Audio

* WAV = Waveform Audio

* PNG = Portable Network Graphics

* DOC = Document (MicrosoftCorporation)

* PDF = Portable Document Format

* M3G = Mobile 3D Graphics

* M4A = MPEG-4 Audio File

* NTH = Nokia Theme (series 40)

* THM = Themes (Sony Ericsson)

* MMF = Synthetic Music Mobile Application File

* NRT = Nokia Ringtone

* XMF = Extensible Music File

* WBMP = Wireless Bitmap Image

* DVX = DivX Video

* HTML = Hyper Text Markup Language

* WML = Wireless Markup Language

* CD -Compact Disk.

* DVD - Digital Versatile Disk.

*CRT - Cathode Ray Tube.

* DAT - Digital Audio Tape.

* DOS - Disk Operating System.

* GUI -Graphical User Interface.

* HTTP - Hyper Text Transfer Protocol.

* IP - Internet Protocol.

* ISP - Internet Service Provider.

* TCP - Transmission Control Protocol.

* UPS - UninterruptiblePower Supply.

* HSDPA - High Speed Downlink PacketAccess.

* EDGE - Enhanced Data Rate for GSM[GlobalSystem for Mobile Communication] Evolution.

* VHF - Very High Frequency.

* UHF - Ultra High Frequency.

* GPRS - General PacketRadio Service.

* WAP - Wireless ApplicationProtocol.

* TCP - Transmission ControlProtocol.

* ARPANET - Advanced ResearchProjectAgency Network.

* IBM - International Business Machines.

* HP - Hewlett Packard.

*AM/FM - Amplitude/ Frequency Modulation.

* WLAN - Wireless Local Area Network