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Modem是由MOdulate(调制)和DEModulate(解调)组合而成,译为调制解调器,根据它的英文发音,很多人称之为“猫”。对于家庭用户来说,采用拨号方式上网,Modem是必备工具之一。众所周知,电脑内部采用数字信号,电话线上传输的是模拟信号,Modem的作用就是把电脑内部的数字信号变成模拟信号,而把电话线上的模拟信号变成数字信号。Modem在电话线和电脑之间架起一座构通的桥梁,使我们方便地通过电话线“登陆”因特网。 与其它计算机产品一样,调制解调器的发展日新月异,
Modem by MOdulate (modulation) and DEModulate (demodulation) combination, translated as a modem, according to its English pronunciation, many people call it “cat.” For home users, using dial-up Internet access, Modem is one of the necessary tools. As we all know, the computer uses a digital signal, the telephone line is the analog signal transmission, Modem’s role is to turn the computer’s internal digital signal into an analog signal, and the analog signal on the phone line into a digital signal. Modem bridges the gap between the phone line and the computer, making it easy for us to “land” the Internet through the phone line. As with other computer products, the development of modems is changing rapidly,