It is a global computer network, which uses a common language to communicate with each other. Network, simply put, is to connect several computers with cables, and then match them with appropriate software and hardware to achieve the purpose of exchanging information between computers.
There are many organizations in the world, such as companies, universities and research institutes. They connect the computers in the organization to the network and communicate between them. This is a local area network.
Companies, universities and scientific research institutes can enjoy computer resources on the local area network, which has obvious advantages over a single computer, so people think, why not enjoy resources on a larger scale? So many of these LANs are connected with each other in various ways, and the international information transmission has formed a large worldwide network, which is the Internet.
At present, Internet users have spread all over the world, and the number of people using the Internet has reached hundreds of millions, and the number of users is still growing at the same speed.
Extended data:
Application of Internet:
1, send and receive mail;
2. The wide application of the network will create a digital way of life and work, called SOHO (Small Home Office);
3. Browsing or surfing the Internet is the most basic service provided by the network;
4. Inquire about information;
5. Online shopping;
6. Enrich people's leisure life style, such as listening to music, watching movies, watching TV, dancing and participating in sports activities.
7. Make friends online;
8. Other applications, such as online demand, online stock trading, online job hunting, art exhibitions, etc.