Shulou(Shulou.com)06/02 Report--

Editor to share with you what modem is mainly used for. I hope you will get something after reading this article. Let's discuss it together.

The main function of modem is the conversion of analog signal to digital signal; Modem, called modem in Chinese, is a kind of computer hardware; it can translate the digital signal of computer into pulse signal that can be transmitted along an ordinary telephone line, and these pulse signals can be received by another modem at the other end of the line and translated into a language that the computer can understand.

The main function of Modem is the conversion between analog signal and digital signal.

Modem (English name Modem), commonly known as "cat", is a kind of computer hardware.

It can translate the digital signals of a computer into pulses that can be transmitted along an ordinary telephone line, which in turn can be received by another modem at the other end of the line and translated into a language that the computer can understand.

The information in the computer is a digital signal composed of "0" and "1", but what is transmitted on the telephone line can only be an analog electrical signal. Therefore, when two computers want to transmit data through the telephone line, a device is required to be responsible for digital-to-analog conversion.

Brief introduction:

Modem is actually the abbreviation of Modulator (modulator) and Demodulator (demodulator). It is a method of modulating or separating the digital signal to be transmitted to or from the carrier.

The so-called modulation is the conversion of digital signals into analog signals transmitted on the telephone line; demodulation, that is, the conversion of analog signals into digital signals, collectively known as modems. It converts the digital signal into the analog signal by modulation at the transmitter and the analog signal into the digital signal by demodulation at the receiver.

When the computer transmits data, Modem first converts the digital signal into the corresponding analog signal, a process called "modulation". Before the modulated signal is transmitted to another computer through the telephone carrier, the receiver's Modem is also responsible for restoring the analog signal to a digital signal that the computer can recognize. This process is called "demodulation". It is through such a digital-to-analog conversion process of "modulation" and "demodulation" that the remote communication between the two computers is realized.

It is mainly used for data communication in telephone network and plays an important role in network interconnection and remote access.

The current modems have been very mature in adaptive, data compression and network coding modulation technologies. The data transmission of each session can be as high as 56kbps, which is basically close to the theoretical maximum rate of the telephone line.

After reading this article, I believe you have a certain understanding of what modem is mainly used for. If you want to know more about it, you are welcome to follow the industry information channel. Thank you for your reading!

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.