with the development of science and technology, people depend more and more heavily on the computer. then how does the computer affect our life?

　　on the one hand, it can be very helpful to people who need it and treat it cortectly. the computer can broaden our knowledge about the world. it can also help us learn more about many fields of studies quickly: science, medicine, arts and so on. it is very convenient to people who are busy with their jobs, and has brought about many positive changes in our lives.on the other hand, the computer may bring about some negative changes. for example, many children become so addicted to computer games that they stay up late frequently and even neglect their studles. another disadvantage is that computer's radiation is harmful to people's eyes, especially to children's.

　　just as every coin has two sides, the computer has advantages and disadvantages. i think that if we can overcome its negative effects, we can bring it into full play.