当全球电脑通过电话线联网后,人们的“活动空间”一下子由自我封闭的一“点”,扩展到全世界的每个角落,每个人都可以借助电话线穿墙越户进入到全球的千家万户,与您喜欢的人交谈、玩耍、作游戏…… 现在,可以毫不夸张地说,只要现实空间中有的东西,电脑空间中几乎都有,如电子报刊、电子邮件、电脑病毒、电脑战争、电子广告、电脑犯罪、电子旅游、电脑购物等等。 如果有兴趣,您可以到白宫(地址是:http:// When the world’s computers are connected via telephone lines, people’s “activity space” suddenly extends from a “point” of self-enclosedness to every corner of the world, and everyone can access the world through telephone lines It is no exaggeration to say that as long as there is something in the real world, there is almost everything in cyberspace, such as electronic newspapers, e-mails, computer viruses , Computer war, electronic advertising, cybercrime, e-tourism, computer shopping and more. If you are interested, you can go to the White House (address is: http: //