Android is a mobile operating system (OS) developed by Google, based in United States. The designed for primarily for touchscreen mobile devices such as smartphones and tablets. It has been the most-selling operating system on smartphones and tablets since 2013, and has the largest installed based. It is the most commonly installed on a variety of smartphones and tablets from a host of manufacturers offering people access to Google’s own services like : Search, Gmail, YouTube, Translate, Maps and many more.
That means you can very easy to look for details on the web, watch videos, search for directions and write emails on your phone, just as you would on your computers or laptops, but there is more to Android than these simple example.
Android’s official app store is Google Play, where you can get over one million Android applications launched and 50 billion downloads as of July 2013.
Click here to this source link for more know about Android : https://en.wikipedia.org/wiki/Android_(operating_system)