https://www.gcreddy.com/
1. What is Android?

Android is a complete set of software for mobile devices such as tablet computers, notebooks, smartphones, electronic book readers, set-top boxes, etc.

It contains a Linux-based Operating System, middleware, and key mobile applications.

It can be thought of as a mobile operating system. But it is not limited to mobile-only. It is currently used in various devices such as mobiles, tablets, televisions, etc.

It is developed by Google and later the OHA (Open Handset Alliance).

Android supports java, c++, c#, etc. language to develop android applications. Java is the officially supported language for android.

The goal of the android project is to create a successful real-world product that improves the mobile experience for end-users.

There are many code names of android such as Lollipop, Kitkat, Jelly Bean, Ice cream Sandwich, Froyo, Eclair, Donut, etc,

2. What is Open Handset Alliance (OHA)

It's a consortium of 84 companies such as google, Samsung, AKM, Synaptics, KDDI, Garmin, Teleca, Ebay, Intel etc. It was established on 5th November, 2007, led by Google.

3. What are the important categories of Android applications?

There are many android applications in the market. The top categories are:

Entertainment
Tools
Communication
Productivity
Personalization
Music and Audio
Social
Media and Video
Travel and Local etc.