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网络生活五彩缤纷,上网已成为我们日常生活的一部分,在我们身边谈论得越来越多的话题就是上网。不过,你对现有的上网方式了解多少呢? 最常用的方式上网最常用的方式,就是用Modem拨号上网。Modem上网的技术已发展得很成熟,现在只要有电话就可以上网。Modem通常分为内置和外置两种。内置Modem插于计算机主板的扩充槽上,通过系统总线同计算机连接;外置Modem通过串行接口与计算机连接。影响Modem上网速率的主要有两方面:一是电话线的传输质量,二是Modem的连接速率。Modem连接速率通常有14.4Kbps、28.8Kbps、
Internet life is colorful and online has become a part of our daily lives. The topic we talk about more and more is online. However, how much do you know about the existing Internet access? The most common way to access the Internet is dial-up using Modem. The technology of Modem’s Internet has developed very well, and now you can access the Internet as long as you have a phone call. Modem is usually divided into built-in and external two. The built-in Modem is plugged into the expansion slot of the computer’s main board and is connected to the computer through the system bus. The external Modem is connected to the computer through the serial interface. There are two main aspects affecting Modem’s Internet access rate: one is the transmission quality of the telephone line, and the other is the connection rate of the Modem. Modem connection rate is usually 14.4Kbps, 28.8Kbps,