The application field of the Internet when it was first created was "military". It began in the United States in 1969 and is also known as the Internet; its predecessor was a military network developed under the auspices of the Advanced Research Projects Agency (ARPA) of the U.S. Department of Defense, named ARPAnet. ARPANET is the earliest prototype of the Internet.
#The Internet is a collection of global information resources. There is a rough saying that INTERNET is a logical network formed by the interconnection of many small networks (subnets), and each subnet is connected to several computers (hosts). The Internet aims to exchange information resources with each other, is based on some common protocols, and is formed through many routers and the public Internet. It is a collection of information resources and resource sharing.
The Internet can be said to be a product of the Cold War between the United States and the Soviet Union. The U.S. Department of Defense has designed a decentralized command system to ensure the defense of the U.S. homeland: it consists of dispersed command points. When some command points are destroyed, other points can still work normally. In order to test this idea, in 1969, the U.S. Department of Defense's Defense Advanced Research Projects Agency (DoD/DARPA) funded the establishment of a network called ARPANET, which was connected to each other through specialized communication switches (IMP) and specialized communication lines. ARPANET is the earliest prototype of the Internet.
Features:
The reason why the Internet has developed so rapidly is mainly due to the following characteristics:
(1) It is a global computer Internet.
(2)It is a huge information material.
(3) The most important thing is that the Internet is a big family, with tens of millions of people participating and sharing the wealth (i.e. resources) created by humans themselves.
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