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3G Technology July 2, 2008

Posted by Vijay in Technology.
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I get to know about this technology due to the release of Apple iPhone3G in July. 3G represents the third generation of wireless communication. We watch online TV in a mobile phone supported EDGE and they correspond to the 2G technology. Actually 3G is the advanced version of 2G which makes the movies to buffer 2.4 times faster than EDGE. 3G technology uses a protocol called HSDPA (High-Speed Downlink Packet Access) to download data fast over UMTS (Universal Mobile Telecommunications System) networks. 3G has a feature of multitasking, simultaneously you can talk on the phone while surfing the web. HSDPA protocol support down-link speeds of 1.8, 3.6, 7.2 and 14.4 Mbit/s and a maximum of 42Mbit/s with HSPA+ protocol. 4G technology are used to watch Internet TV in most of the countries including US. The other features of iPhone are GPS(Global Positioning System) which tracks and monitors the location where the mobile is used and provides the direction to the destination point.

Features of iPhone:

iPhone has a very sleek design of just 12mm in thickness and it weighs 130g. It is also Quad Band and it supports GSM/GPRS/EDGE with GSM of 850/900/1800/1900. iPhone has 3.5inch widescreen LCD with a resolution of 480 x 320 pixels at 163ppi and it supports touch screen interface with a home button. iphone has its own iPhone OS v2.0 with storage capacity of 8 or 16 GB Flash Memory. The other specification includes Wi-Fi (802.11 b/g), EDGE and with Bluetooth 2.0EDR Technology, Assisted GPS (A-GPS), with detection of cell towers and Wi-Fi networks. It has a 2 megapixel camera with geotagging facility. It has a Lithium-ion Polymer battery with up to 10 hours of 2G talk, 5 hours of 3G talk, 5 (3G) or 6 (Wi-Fi) hours of Internet use, 7 hours of video playback, and up to 24 hours of audio playback, lasting over 300 hours on standby. The 8GB iPhone will be available at a very low price of US$199 while the 16GB will be at US $299. It is going to be released in two colours black or white in most of the countries (the list doesnt include India)


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