Android is a Linux-based operating system designed primarily for touchscreen mobile devices such as smartphones and tablet computers. Initially developed by Android, Inc and later the platform was bought out by Google.
Android is open source and permissive licensing allows the software to be freely modified and distributed by device manufacturers, and enthusiast developers. Additionally, Android has a large community of developers writing applications (“apps”) that extend the functionality of devices, written primarily in a customized version of the Java programming language.