Q 1: What is android?
Answer:
Android is an open source operating system. Its based on Linux. It is most widely used on Mobiles and Tablets. The latest versions of this OS also supports TV, watches and Auto.

Q 2: What are the layers of android architecture?
Answer:
From bottom to top the Android architecture has below layers:

1. Linux Kernel
2. Libraries, Android Runtime
3. Application Framework
4. Applications

Q. 3: When was the first version of Android OS launched?
Answer:
It was first launched on September 23, 2008.

Q 4: Which is the latest version of Android?
Answer:
version 5.1.1 named lollipop

Q 5: What is the official website of Android?
Answer:
www.android.com

Q 6: What is the name of Android's founder?
Answer:
Andy Rubin

Q 7: What languages Android support?
Answer:
Java, C, C++

Q 8: What are the building blocks of Android?
Answer:
1. Activity
2. Content Provider
3. Broadcast Receivers
4. Service