收发电报有哪四个环节，请问收发电报要经过什

　　收发电报有哪四个环节，请问收发电报要经过什么？

　　据和记百科网站「不介意。」消息，近日，收发电报有哪四个环节，请问收发电报要经过什么？引发热议，收发电报要经过什么同样引起许多争议，对此众网友各抒己见。但到底是怎么回事呢？和记百科为您解答。

收发电报有哪四个环节

　　收发电报有“编码--发送--接收--解码”这四个环节。电报信息通过专用的交换线路以电信号的方式发送出去，该信号用编码代替文字和数字，通常使用的编码是摩尔斯电码。随着电话、传真等普及应用，电报已很少被人使用。

电报的发明：

　　欧洲的科学家在18世纪逐渐发现电的各种特质。同时开始有人研究使用电来传递讯息的可能。早在1753年，一名英国人便提出使用静电来拍发电报。他的设想是使用26条电线分别代表26个英文字母。发电报的一方按文本顺序在电线上加以静电。接收的一方在各电线接上小纸条。当纸条因静电而升起时，便能把文本誊录。

收发电报要经过什么

　　发收电报要经过“编码一发送一接收一解码“的过程，利用电磁波作载体，通过编码和相应的电处理技术实现人类远距离传输与交换信息的通信方式。故答案为：编码一发送一接收一解码。

　　【英文介绍/For English】：

　　There are four steps in sending and receiving telegrams: "encoding--sending--receiving--decoding". Telegraph information is sent out in the form of electrical signals through dedicated exchange lines, and the signals are replaced by codes instead of letters and numbers. The code usually used is Morse code. With the popularization of telephone, fax, etc., telegraph has been rarely used.

Invention of the telegraph:

　　European scientists gradually discovered various properties of electricity in the 18th century. At the same time, some people began to study the possibility of using electricity to transmit messages. As early as 1753, an Englishman proposed to use static electricity to make telegrams. His idea was to use 26 wires to represent the 26 English letters. The party sending the telegram applies static electricity to the wires in text order. The receiving party attaches a small strip of paper to each wire. When the strip of paper is lifted by static electricity, the text can be transcribed.