Today Facebook finally unwrapped the Facebook Home for Android phones mystery. It's quite interesting and potentially Facebook won't even need its own device. Check it out.
A computer is a general purpose device that can be programmed to carry out a finite set of arithmetic or logical operations. Now you can check if you know the history of computers?
If you are using Facebook social apps for watching videos, reading content and you don't want your friends or everyone to know about your activity, you can turn this off.