Personal computers are smart machines that help teach the students faster than the normal mode of learning, it solves the entire difficult problem which would otherwise take hours. Its enough to play games. Computers look complicated but are very simple to work on. They can only understand inputs in simple language. They are based on two things: on and off. This limitation is taken care by computers by being very fast in their response.

For instance, the time you will take to read one paragraph in the same amount of time computers can read the entire book. It is completely based on the inputs or instructions provided by us. If you give right instructions it will fetch you correct results.