ARPANET
The USSR launches Sputnik, the first artificial earth satellite. In the late 1960’s the U.S. military was desperately afraid of a nuclear attack from the Soviet Union. The United States formed the Advanced Research Projects Agency (ARPA) within the Department of Defense to establish a bombproof network to connect military bases. ARPANET’s physical network was established in 1969 to enable universities and research organizations to exchange information freely. The first two nodes that formed the ARPANET were UCLA and the Stanford Research Institute, shortly after the University of Utah was added to ARPANET. The Network Control Protocol (NCP) was initially used as the ARPANET protocol, beginning in 1970. By 1971, a total of 23 hosts at 15 locations were connected to the ARPANET. The following year, the first international connections occurred, linking the University College of London (UK) and the Royal Radar Establishment (Norway) to the ARPANET.
In 1985 the National Science Foundation began announcing plans for its new T1 lines, which would be finished by 1988. Soon after the completion of the T1 backbone, traffic increased so quickly that plans immediately began on upgrading the network again. The same year the concept of the T3, a 45 Mbps was introduced to the public. While the T3 lines were being constructed, the Department of Defense disbanded the ARPANET and the T1 and later T3 backbone replaced ARPANET. The original 50Kbs lines of ARPANET were taken out of service. In 1990 ARPANET was replaced by the National Science Foundation Network (NSFNET), the same company that founded the t1 and t3, to connect its supercomputers to regional networks. Peter Salus(Editor) / Hardcover / Published 1998
Some common words found in the essay are:
Fortunately Net, Internet Protocol, Science Foundation, Department Defense, Essentially ARPANET, Protocol NCP, Network NSFNET, , T1 T3, ARPANET ARPANET, packet switching, radio packet switching, national science, radio packet, science foundation, connected arpanet, / published, enemy attack, t1 t3, department defense, internet protocol, national science foundation,
Approximate Word count = 674
Approximate Pages = 3 (250 words per page double spaced)
|
