Some people believe that computers have negative effects on children. To what extent do you agree or Currently, the computer is playing an increasingly significant role in our life. It is argued by some people that computers have influenced children’s development negatively. Overall, I agree with this viewpoint. The merits of this opinion are obvious. Primarily, playing computers have a damaging impact on children’s physical health. Specifically, it diminish children’s time for outdoors activities that benefit their strength, flexibility and endurance, and lead to a sedentary lifestyle, which makes children more vulnerable to obesity and heart diseases. And staring on the screen may result in a bad eyesight. Furthermore, the contents in computers can be harmful to children’s mental development. For instance, there is a proliferation of violent and pornographic videos and pictures, driving up the youth crime rate, because teenager cannot distinguish between right and wrong. This point can be confirmed by the fact that an increasing number of adolescents are overly dependent on computers. They live in that virtual world, where they can get a sense of accomplishment, and are deprived of the opportunities of communicating with others in real life. I admit that it may be true that some children can profit from computers. For example, the extensive use of the Internet enables children to have access to more study resources. Nonetheless, the materials that can be downloaded from the Internet may be misleading, which might confuse students. Therefore, libraries should introduce more dependable resources, both books and multimedia materials, so that children can get whatever they want off the Internet. In conclusion, I am convinced that computers have more negative effects on children than positive ones. And I believe that it would be well-advised for parents and teachers to restrict the availability to computers and assist children to prevent themselves from being addicted to computers and to strike a balance between the virtual world and the real life.