Android started its operating system in November 2007 with Android beta. The first commercial version of Android 1.0 was released in September 2008. Android is under developed by Google and Open Hand Alliance and upgrades it base operating system since its release. It fixed it Bug and add new features in new version of Android.Android relies it new version under codename in April 2009 and released in alphabetical order like cupcake, Donut, Eclair, Froyo, Gingerbread, Honeycomb, Ice Cream Sandwich (ICS), and new Jelly Bean.Android has 400 million OS active devices in worldwide in 2012. Android announced it new OS version Jelly Bean 4.2 in October 2012 and it released with devices in November.
Version of Android:-
Android beta
The Android beta it first operating system released in 5 November 2007 and there software development kit (SDK) in 12 November 2007.
Android 1.0
Android 1.0 is released it first commercial version in 23 September 2008 with HTC Dream but it incorporat e the following Android 1.0.
Android 1.0 on HTC Dream













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