1．上图所示为1990年、1995年、2000某校大学生使用计算机的情况，请描述其变化：
2．请说明发生这些变化的.原因(可从计算机的用途、价格或社会发展等方面加以说明)：
3．你认为目前大学生在计算机使用中有什么困难或问题。
Students tend to use computers more and more nowadays. Reading this chart, we can find the average number of hours a students 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, and in 2000, the number soared to 20 hours.
Obviously computers are becomlng 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.
However, there still exist some problems, such as, poor quality, out-of-date designs and so on. And how to balance the time between using computers and studying is also a serious problem.
Anyhow, we will benefit a lot from computers as long as we use them properly.
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