一、调制解调器概述 Modem的作用是使计算机之间通过普通电话线进行连接、传递数据。当两台计算机希望通过电话线进行数据交换时,就需要一个设备负责数模和模数转换,这就是Modem。当你的计算机向外发送数据时,先把数字信号转换为相应的模拟信号,这个过程称为“调制”。经过调制的信号通过电话载波传送到另一台计算机转换成能识别的数字信号,这个过程称为“解调”。正是通过这样一个“调制”和 First, the modem Overview Modem role is to make the computer through the ordinary telephone line to connect, transfer data. When two computers want to exchange data over the telephone line, you need a device responsible for digital and analog-digital conversion, which is Modem. When your computer sends out data, the first digital signal into the corresponding analog signal, the process is called “modulation.” The modulated signal is transmitted over a telephone carrier to another computer and converted to a recognizable digital signal, a process known as “demodulation.” It is through such a “modulation” and