From the properties of the computer to see whether the computer can perform many tasks that humans can't do it or if humans do it is going to take a lot and have a lot of errors, such as multiple-digit numbers a lot of calculations within a limited time. It works in the same way millions of times over and over, or remember information several thousand books and pages without having to forget. Boring and difficult task of these we can use computers to work. We have a duty, just as ordered. Therefore, the computer has a very important role in the daily life.