First Ever Post in Blog With a Very Simple Question Lets see What the different kind of answer are we get?

Hello Friends
               I am starting this blog for the purpose of giving and finding the answers of all kind of things. I appreciate all who gives a proper and related answers for the given question. Some crazy answers also been appreciated. The intention after creating this blog is that the people can know in depth about the things which are used in our daily activity.

Now let's start this game.

The very simple question for today is :

  What is computer? and What works can be done using this great machine?

Please give the answer of this question whatever you know about this question in a comment .