What is the Internet?

It is the abbreviation of information technology, which refers to the technology related to information. Different people and books have different explanations for this. But basically everyone agrees that it consists of the following three parts:-sensing technology is the extension and expansion of human sensory organs, and the most obvious example is bar code reader; -Communication technology, which is the extension and expansion of human nervous system, undertakes the function of transmitting information; -Computer technology This is the extension and expansion of the function of the human brain, which undertakes the function of processing information. The so-called informatization is to transform other industries and industries with information technology, so as to improve the efficiency of enterprises. In this process, information technology plays the role of a powerful tool.

INTERNET is an international computer network composed of wide area network, local area network and stand-alone computer according to a certain communication protocol. Internet refers to the result of connecting two or more computer terminals, clients and servers through computer information technology. People can email each other with friends thousands of miles away, finish a job together and have fun together.

Generally speaking, a huge network connected in series between networks can be translated as "Internet" network, and can also be translated as Internet or Internet. In the early development period of1990s, some people in Taiwan Province province called it international network or international computer network, because it was connected internationally. It refers to the world's largest global internet developed on the basis of ARPA network. Internet (English: international network or Internet), translated as Internet in Taiwan Province Province, is a "network connection network", which can be a collection of any separated physical networks. These networks are connected by a set of common protocols to form a logically single network. This method of connecting computer networks together is called "network interconnection". 1995101October 24th, the FNCTheFederalNetworkingCouncil passed a resolution on the definition of the Internet: "The United Network Council believes that the following language reflects the definition of the word' Internet'.

"Internet" refers to the global information system;

1. On the basis of network media, it is logically linked by the unique network logical address in the world. The address is based on Internet Protocol (IP) or other future protocols.

2. Communication can be conducted through transmission control protocol and Internet protocol (TCP/IP) or other future follow-up protocols or protocols compatible with Internet protocol (IP).

3. Let public users or private users enjoy the high-level and all-round services brought by modern computer information technology. This service is based on the above communication and related infrastructure. "

Of course, this defines the internet from a technical point of view. This definition reveals at least three aspects: first, the Internet is global; Secondly, every host on the Internet needs to have an "address"; Finally, these hosts must connect according to the same rules (protocols).