Computer is a great invention. In this age it become the need of every common man. In its early time as its name, it is only a computing machine use for adding and subtracting. But now it is doing almost every work in every field of life. Its use for entertainment and communication in houses. For large and complex data it is used in offices. And even it is used in hospitals for keeping the record and medical history of patients.

It is become an artificial mind which help us too much. Due to this artificial intelligence man has built robots. These robots can do many jobs even some we cannot. For example Chernobyl disaster a  nuclear accident that occurred on 26 April 1986 at the Chernobyl Nuclear Power Plant in Ukraine. After this accident the radiation was controlled by robots. As its impossible for human to go in the Nuclear Power Plant to stop radiation so the scientists sent in robots to do this work. Now days even a complete factory can be controlled by computers. A glass factory in England is totally controlled by computers.  

In this age computer is an important part of life and without it life become sad and meaningless.