The Internet, also known as the International Computer Internet, is currently the most influential international computer network in the world. Its accurate description is: The Internet is a network of networks. It uses the TCP/IP network protocol to connect various physical networks of different types, sizes, and geographical locations into a whole. It is also an international communication network collection that integrates modern communication technology and modern computer technology, and integrates various information resources from various departments and fields, thus forming an information resource network shared by online users. Its emergence is the inevitable and symbol of the world's transition from industrialization to informatization.

The Internet originated from the ARPAnet established in 1969 by ARPA, the predecessor of the US Defense Advanced Research Projects Agency (DARPA). The original ARPAnet was primarily used for military research purposes. In 1972, ARPAnet met the public for the first time and became a symbol of the birth of modern computer networks. Another major technical contribution of ARPAnet is the development and use of the TCP/IP protocol suite. ARPAnet experimented and laid the foundation for the existence and development of the Internet, and better solved a series of theoretical and technical problems in the interconnection between heterogeneous computer networks.

At the same time, the emergence and development of local area networks and other wide area networks played an important role in the further development of the Internet. Among them, the most influential one is NSFnet established by the National Science Foundation (NSF). It completely replaced ARPAnet and became the backbone network of the Internet in June 1990. However, NSFnet's greatest contribution to the Internet is to open the Internet to the whole society. With the rapid growth of online communication volume, in September 1990, Merit, IBM and MCI jointly established the Advanced Network & Science Company ANS (Advanced Network & Science, Inc). Its purpose is to establish a nationwide T3 level backbone network that can transmit data at a rate of 45Mb/s, which is equivalent to transmitting 1,400 pages of text information per second. By the end of 1991, all NSFnet backbone networks had been integrated with the T3 provided by ANS. level backbone network.

In the past ten years, with the development of society, science and technology, culture and economy, especially the great development of computer network technology and communication technology, people have paid more and more attention to the development and use of information resources, which has strongly stimulated the development of information resources. Development of the Internet.