阅读短文，判断标有题号的每一行画线部分和有漏字符号（^）处是否有错误。如无错误，在该行右边横线山画一个“√”；如有错误（每行只有一个），则按下列情况改正：画线部分为多余的词：把该词写在该行右边的横线上并画上斜线（\）。划线部分为错词：在该行右边横线上写出一个正确的词。有漏字符号（^）处缺一个词：在该行右边的横线上写出所缺的词。

    As we all know, computer is one of the greatestinventionall over the world. It is gettingmore and more convenient for students to use computers nowadays. We can find that thenumber of students who use computer has increased. Computersare becoming more and morepopularity. There are several reasons for this. First, computers help usonmany ways of life, the fast development of the Internet enlarges our demands for using computers. We can easily contactandfriends in remote places through the Internet. The prices of computersisgetting lower and lower, this leads more students to becanto afford them. However, there still are some problems, such as, some computershave poor quality, some are out ^ date at designing and so on. And how to balance the timeamongusing computers and studying is also a serious problem. Some students don't take itserious. We will get a lot from computers as long as we use them properly.