【正确答案】
Since the computer was invented in 1945, it has been in use for more half a century. Nowadays with rapid development of information technology, computers play an even more important part in our life. And the attitude towards it diverses.
Most people agree that computers have positive effects on us. First of all, we can deal with office work more quickly than before. There is no need for a pen and paper most of the time; all we have to do is input the information in computer memory where all kinds of software make our work efficient. Besides, computers make communications faster and more conveniently. People can talk or write to parents or friends instantly even though they are far away from each other. Now we can even see each other while talking.
It goes without saying that every coin has two sides, so does computers. Many teenagers become so addicted to computer games or online chat that they ignore their study. Some of them even lead an abnormal life and can not adapt to real world. Moreover, computer crimes are upsurging, and it is difficult to catch those smart criminals because of their cover-up behind screen.
In my opinion, the positive effects of computers outweigh the negative effects. We should make good use of computers and let them do good to people and make our life wonderful.