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2. Comparison of mobile phone standards - Wikipedia

   en.wikipedia.org/wiki/Comparison_of_mobile_phone...

   In 3G, the most prevalent technology was UMTS with CDMA-2000 in close contention. All radio access technologies have to solve the same problems: to divide the finite RF spectrum among multiple users as efficiently as possible. GSM uses TDMA and FDMA for user and cell separation. UMTS, IS-95 and CDMA-2000 use CDMA.

3. Speck Products - Wikipedia

   en.wikipedia.org/wiki/Speck_Products

   Speck cases were chosen as iLounge's iPhone Case of the Year in 2009 (CandyShell for iPhone 3GS and iPhone 3G), [15] 2010 (PixelSkin HD for iPhone 4), [16] 2011 (CandyShell Flip for iPhone 4S and iPhone 4) [17] and 2012 (CandyShell Flip for iPhone 5). [18] CandyShell Wrap for iPad 2 was named iLounge iPad Case of the Year for 2011. [17]

4. iPhone 3G - Wikipedia

   en.wikipedia.org/wiki/IPhone_3G

   The iPhone 3G features an internal rechargeable battery rated at 1150 mAh, which, like its predecessor, is not user-replaceable. Apple stated that the iPhone 3G's battery is capable of providing up to six hours of web browsing via Wi-Fi, or five hours via 3G, or 25 hours of audio playback. Alternatively, it is said to provide 300 hours of ...

5. iPhone 3GS - Wikipedia

   en.wikipedia.org/wiki/IPhone_3GS

   The iPhone 3GS, stylised as iPhone 3G🅂 [a] is a smartphone that was designed, developed, and marketed by Apple Inc. It is the third generation iPhone and the successor to the iPhone 3G . It was unveiled on June 8, 2009 [ 8 ] at the WWDC 2009 which took place at the Moscone Center in San Francisco.

6. History of mobile phones - Wikipedia

   en.wikipedia.org/wiki/History_of_mobile_phones

   Enabling technology for mobile phones was first developed in the 1940s but it was not until the mid-1980s that they became widely available. By 2011, it was estimated in Britain that more calls were made using mobile phones than wired devices. [ 1] The history of mobile phones covers mobile communication devices that connect wirelessly to the ...

7. List of iPhone models - Wikipedia

   en.wikipedia.org/wiki/List_of_iPhone_models

   The backs of an iPhone 6, an iPhone 7, an iPhone 8, and an iPhone SE (3rd generation) The iPhone, developed by Apple Inc., is a line of smartphones that combine a mobile phone, digital camera, personal computer, and music player into one device. Introduced by then-CEO Steve Jobs on January 9, 2007, the iPhone revolutionized the mobile phone ...