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许多刚上网的朋友,只知道MODEM是PC连接网络的“桥梁”和必需设备,而对MODEM进一步的理解和认识却莫衷一是。为了帮助新上网的朋友释疑解惑、正确认识MODEM,且听我细说从头。 MODEM(Modulator-Demodulator)的中文学名叫调制解调器,在Internet上许多朋友昵称它“猫”。顾名思义,调制解调器的作用就是“调制”和“解调”。所谓调制,是将计算机发出的二进制信号转变为可以通过电话网传输带宽小于4KHz模拟信号的过程。解调则是一个反调制的过程。简言之,MODEM的主要功能就是将计算机的数字信号和电话网上的模拟信号进行交换,以便在计
Many just online friends, only know that MODEM is the PC to connect the network “bridge” and the necessary equipment, and further understanding and understanding of MODEM but not one. In order to help new friends online doubts doubts, correct understanding of MODEM, and listen to me elaborate from scratch. MODEM (Modulator-Demodulator) Chinese called modem, many friends on the Internet nickname it “cat.” As the name implies, the role of modems is “modulation” and “demodulation.” The so-called modulation, is the binary signal sent by the computer can be transmitted through the telephone network transmission bandwidth less than 4KHz analog signal process. Demodulation is an anti-modulation process. In short, the main function of MODEM is to exchange the digital signal of the computer and the analog signal of the telephone network,