What are the modern means of communication? What are their benefits to people?

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In ancient times, horses were sent to the post, and there was a post station on the way.

There are also carrier pigeons, which are generally used for short distances.

During the war, the beacon tower on the Great Wall burned wolf dung.

After the invention of gunpowder, there were also flares that are common in TV dramas.

Some things that are not easy to say in person can be said anytime and anywhere.

If you can't say something, send a message.

Modern times are much faster than ancient times, which not only saves time, but also allows people to see the news immediately. The difference is huge. In the past, it took ten days and months to deliver to a place, but now it does not take more than ten days at most.

The writing is really good, and I learned about the education sector in Yunnan.

**。**Fixed**, mobile** and network**, its transmission mode and network mode advantages and disadvantages are basically the same, and the network mode is different in that **can not directly transmit text**, and the difference with the mail mode is that it can not transmit the physical object.

Fax. Fax is the fastest growing non-telephone telecommunications service in the past 20 years. A communication method in which still images such as text, charts, and photographs recorded on paper are converted into electrical signals through scanning and photoelectric conversion, transmitted to the destination through various channels, and a series of inverse conversion processes at the receiving end to obtain a copy of the record similar to that of the original being sent, which is called fax.

Satellite**. Satellite communication systems are used to transmit information. Satellite is the product of modern mobile communication, and its main function is to fill the area that cannot be covered by existing communication (wired communication, wireless communication) terminals, and provide more sound services for people's work.

In modern communication, satellite communication cannot be replaced by other communication methods, and all the communication functions provided by existing commonly used communication have been applied in satellite communication.

Telegraph. The telegraph is a text message transmitted by an electrical signal. In today's increasingly rapid communication, the role of the telegraph is no longer very large, and perhaps one day the telegraph will disappear from our lives.

Internet. Make human life more convenient and rich, so as to promote the progress of the global human society. And enrich the spiritual and material world of human beings, so that human beings can obtain information most conveniently. Find what you want and make human life happier.

<> modern means of communication include telegraph, post, fax, satellite, data communication, etc.

1. Telegraph: Electricity signals are used to transmit text information, which is the earliest method of communication using electricity, and is one of the important inventions of industrial society.

2. Mail: Based on physical delivery, it is the simplest and purest way to transmit information.

4. Fax: Text, charts, photos, etc. are recorded on paper, and turned into electrical signals through scanning and photoelectric conversion, which are transmitted to the destination through various channels.

6. Data communication: The information transmitted by the computer network is digital data, which is a communication mode combining computers and communication lines.