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About the Google's Mobile Operating system......................Android

Android (operating system)

From Wikipedia, the free encyclopedia
Android
Android robot.svg
Android.svg
Android screenshot.png
Home screen displayed by Samsung Nexus S with Google, running Android 2.3 "Gingerbread"
Company / developer Google Inc, Open Handset Alliance
Programmed in C (core), Java (UI), C++
Working state Current
Source model Mixed (free and open source software and proprietary software)
Initial release 23 September 2008 (2008-09-23)
Latest stable release Tablets: 3.2.1 (Honeycomb)
Phones: 2.3.7 (Gingerbread) / 20 September 2011; 5 days ago (2011-09-20)
Package manager APK
Supported platforms ARM, MIPS, x86
Kernel type Linux kernel (monolithic)
Default user interface Graphical
License Apache License 2.0
(closed source for Android 3.x)
Linux kernel patches under GNU GPL v2
Official website android.com
Android is an operating system for mobile devices such as smartphones and tablet computers. It is developed by the Open Handset Alliance led by Google.
Google purchased the initial developer of the software, Android Inc., in 2005. The unveiling of the Android distribution on November 5, 2007 was announced with the founding of the Open Handset Alliance, a consortium of 84 hardware, software, and telecommunication companies devoted to advancing open standards for mobile devices. Google released most of the Android code under the Apache License, a free software license. The Android Open Source Project (AOSP) is tasked with the maintenance and further development of Android.
Android consists of a kernel based on the Linux kernel, with middleware, libraries and APIs written in C and application software running on an application framework which includes Java-compatible libraries based on Apache Harmony. Android uses the Dalvik virtual machine with just-in-time compilation to run compiled Java.Android has a large community of developers writing applications ("apps") that extend the functionality of the devices. Developers write primarily in a customized version of Java. There are currently more than 250,000 apps available for Android. Apps can be downloaded from third-party sites or through online stores such as Android Market, the app store run by Google. code.
Android was listed as the best-selling smartphone platform worldwide in Q4 2010 by Canalys.[21][22]