2016年7月15日星期五

Dot.Com to Dot. Bomb

In a sense, the Internet can be said to be the product of the US-soviet cold war. Such a huge network, its origin can be traced back to 1962.At that time, the department of defense to ensure that the United States defense force and overseas defense forces after the first nuclear attack from the former Soviet union still has a certain survival and ability to fight back, think it is necessary to design a decentralized command system: it is composed of discrete point of command, when part of the command is destroyed, other points can still work normally, and between these points, to be able to bypass those who had been destroyed command points and continue to keep in touch. Validated to this idea, in 1969, the U.S. defense advanced research projects agency (DoD/DARPA) fund established a called ARPANET (i.e., the ARPANET) network, the network to the university of California, Los Angeles at the university of California, Santa Barbara, Stanford university, and is located in Salt Lake City, Utah state university computer host connected together, in each node of large computer USES packet switching technology, through the special communications switches (IMP) and special communication lines connected to each other. The prototype of the ARPANET is the Internet first.
         The expansion of the Internet in the 80 s not only brings the change of the quantity, at the same time also brought some qualitative changes. Due to a variety of academic groups, corporate research institutions, and even into the individual users, Internet users are no longer limited to pure computer professionals. New users find computer communication between each other more attractive for them. So they gradually put the Internet as a communication and communication tools, not just to share the NSF giant computer operation ability.

Into the early 90 s, the Internet has become a "net", in fact, is responsible for his own erection and operation costs for each subnet, and these subnets are connected through the NSFNET again. NSFNET connection tens of millions of computers across the country, with tens of millions of users, is the most important members of the Internet network. Along with the computer network in the global development and diffusion, the outside network of America also gradually access NSFNET backbone or its subnet. Internet commercialization stage in the early 90 s, commercial organizations begin to enter the Internet, make Internet began the process of commercialization of new has become a powerful force driving the Internet development. NSFNET stop their operations in 1995, the Internet has completely commercialized.

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