Android

Android is a mobile operating system developed by Google. It is based on a modified version of the Linux kernel and other open source software, and is designed primarily for touchscreen mobile devices such as smartphones and tablets.

It has been known to be the operating system used for smartphones, tables, cars, wearable smartwatches, game consoles, and several computers.

History
Android Inc. was founded in 2003, and bought by Google in 2005. It was originally intended for digital cameras, but later changed to mobile devices to compete with Windows Mobile and Symbian. The first prototype is similar to a Blackberry device. Since the announcement of the iPhone, Google had to make a smartphone design out of the Android OS.

When Android was first released in September 23, 2008, the first Android phone was the HTC Dream G1.

According to the archive, Milestone 3 was released in November 2007, Milestone 5 was released in February 2008 and Version 0.9 was released in August 2008.

Forks
Android-x86 is a fork of Android meant for x86 processors.