As can be clearly indicated in the above chart,the average number of hours a atudent spends on the computer per week has rising at an astonishing speed from the year 1990 to the year 2000. When we talk about the changes,we have to take the following reasons into account.First of all ,with computer becoming cheaper,more students can afford one to assist them in their studies.additionally,the great convenience and capacity of computer is a certain lure for the younger generation. Many problems also arise in students use of computers.So it is suggested that these students make a scientifuc and positive use of the computers. we may obviously find that its advantages outweigh the disadvantage.