Android is a free and open source operating system based on Linux, mainly used in mobile devices, such as smart phones and tablet PCs, Google and Open Mobile Alliance Leadership and development. There is no unified Chinese name, more people in the mainland of China to use the Android or ann". Android operating system was originally developed by Rubin Andy, the main support for mobile phones. August 2005 by Google acquisition injection. In November 2007, Google and 84 hardware manufacturers, software developers and telecom operators form the Open Handset Alliance Joint Research and development to improve the Android system. Then Google to Apache open source license license, the release of the Android source code. The first Android smartphone was released in October 2008. Android gradually extended to the tablet PC and other areas, such as television, digital cameras, games, etc.. The first quarter of 2011, Android for the first time exceeded the Symbian system in the global market share, ranked first in the world. In the fourth quarter of 2013, the global market share of the Android mobile phone platform has reached 78.1%. [1] 2013 24, 9, Google developed the operating system Android in the 5 year old birthday. , the world's number of devices using this system has reached 10.