Android is a Linux based mobile device operating system developed by the Open Handset Alliance led by Google. Android is mainly used in Smartphone and tablet computers. Android is open source i.e. its features can be extended to incorporate new technologies as they emerge.
Android, Inc. was founded by Andy Rubin, Rich Miner, Nick Sear and Chris White in Palo Alto, California. On August 17, 2005 Google acquired Android Inc. making it a subsidiary of Google Inc.
On November 5, 2007, the Open Handset Alliance publicly announced their first product, Android, a mobile device platform built on Linux kernel version 2.6.