|Android is a Linux-based operating system designed primarily for touchscreen mobile devices
such as smartphones and tablet computers, developed by Google in conjunction with the Open Handset Alliance.
Initially developed by Android Inc, whom Google financially backed and later purchased in 2005, Android was
unveiled in 2007 along with the founding of the Open Handset Alliance, a consortium of 86 hardware, software, and
telecommunication companies devoted to advancing open standards for mobile devices.
Google releases the Android code as open source, under the Apache License. The Android Open
Source Project (AOSP), led by Google, is tasked with the maintenance and further development of Android.
Additionally, Android has a large community of developers writing applications ("apps") that extend the
functionality of devices, written primarily in a customized version of Java.
They are available for download through Google Play or third-party sites. In September 2012, there were more than
675,000 apps available for Android, and the estimated number of applications downloaded from Google Play was 25