随着Internet不断扩展,用户可以选择的服务也越来越多。与访问全球范围的电话系统类似,用户在访问Internet的时候要与ISP打交道。连接到Internet最常见的方式是通过Modem拨号。超过60％的浏览者都通过28.8KbpsModem在网上接触大千世界。剩下的40％则以租用线路,ISDN或其他速度的Modem访问Internet。通过拨号方式获得Internet访问所需的手续很简单,只需要简单的个人信息和信用卡号即可获得账户。多数ISP使用信用 As the Internet continues to expand, users can choose more and more services. Similar to accessing a worldwide telephone system, users interact with the ISP when accessing the Internet. The most common way to connect to the Internet is through modem dial-up. More than 60% of the viewers access the world through 28.8Kbps Modem. The remaining 40% access the Internet on leased lines, ISDN or other Modem speeds. The procedure for obtaining Internet access via dial-up is as simple as obtaining your account with simple personal information and credit card numbers. Most ISPs use credit