Students tend to use computers more and more nowadays. Reading this chart, we can find that the average number of hours a student spends on the computer per week has increased sharply. In 1990, it was less than 2 hours; and in 1995, it increased to almost 4 hours; while in 2000, the number soared to 20 hours.

Obviously computers are becoming more and more popular. There are several reasons for this. First, computers facilitate us in more aspects of life. Also, the fast development of the Internet enlarges our demands for using computers. We can easily contact with friends in remote places through the Internet. Besides, the prices of computers are getting lower and lower, which enables more students to purchase them.

Along with the time spent on computers, there arise some problems. The most serious one is that many students are spending so much time playing PC games so that they ignore their studies. It is urgent to let the students use computers in a proper way.