Android is mobile based operating system .It is based on linux kernel.
Features of android:
1. Its interface is very user friendly and we can have direct manipulation, using touch inputs, that loosely correspond to real-world actions, like swiping, tapping, pinching, and reverse pinching to manipulate on-screen objects, and a virtual keyboard.
2.Numerous application can be made using Android software development. Android software development is the process by which new applications are created for the Android operating system. Applications are usually developed in Java programming language using the Android software development kit (SDK), but other development environments are also available.
3.Android is designed to manage memory (RAM) to keep power consumption at a minimum, in contrast to desktop operating systems which generally assume they are connected to unlimited mains electricity.When an Android application is no longer in use, the system will automatically suspend it in memory; while the application is still technically “open”, suspended applications consume no resources and sit idly in the background until needed again