生活在今日信息时代的每一个人可能都有这样的感受,似乎就在昨天,电脑还是一种可望而不可及的神秘莫测的东西,忽然就走进了今天的生活中,我们身边的每一个变化似乎都与它的存在和发展有关。我们清醒地认识到,正如机器的产生是人类手的延伸一样,电脑的产生则是人类脑的延伸。电脑在给人们的生活带来翻天覆地的变化的同时也给人们的思想带来了一次革命。足不出户就可以工作、购物、查阅资料、定票,与千里、万里之外的人进行交谈……。地球不只是成了一个村,而且成了人类的掌中之物,所需之物随手可得。似乎可以说每一个跟人类生活密切相关的东西都 Everyone who lives in today’s information age may have this feeling, it seems that just yesterday, the computer is still an uncanny mysterious thing, suddenly entered today’s life, around us Every change seems to be related to its existence and development. We are soberly aware that, just as machine production is an extension of human hands, the production of computers is an extension of the human brain. The computer has revolutionized the life of people and brought a revolution to people’s minds. You can work without leaving home, shopping, access to information, tickets, talk with people miles and miles away ... .... The Earth is not just a village, but also a human hand, and what is needed is readily available. Seems to be said that every one of the things closely related to human life are