In the world without computers in the past, the Internet now mostly uses computers to find information. People are aware of the harmful effects of computers or surfing the Internet, but children make friends.

I think computers are good for human beings. He can help people solve problems in life and increase their knowledge. He also has a bad influence, for example, it will lead children to indulge in online games and neglect their studies, so their grades will drop.

We should combine work and rest, play when we should, don't invest too much, and arrange our own time.