Android is an open-source, Linux-based operating system primarily used for mobile devices. It was developed by Google and allows developers to create applications. The scope of Android is wide, with the OS now used in devices beyond phones like TVs, cars, watches, and home appliances. The latest version, Android L, focuses on new platforms like Android TV and Android Auto and introduces features to minimize distraction like a do-not-disturb mode and notification cards on the lock screen.