1984 |
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The ARPANET was divided into two networks: MILNET and ARPANET. MILNET was to serve the needs of the military and ARPANET
to support the advanced research component, Department of Defense continued to support both networks.
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CSNET was contracted to MCI. New circuits would be T1 lines,1.5 Mbps which is twenty-five times faster than the old 56
Kbps lines. IBM would provide advanced routers and Merit would manage the network. New network was to be called NSFNET
(National Science Foundation Network), and old lines were to remain called CSNET.
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Backbones: 50Kbps ARPANET, 56Kbps CSNET, plus satellite and radio connections -
Hosts: 1024 |
1985 |
The National Science Foundation began deploying its new T1 lines, which would be
finished by 1988. |
Backbones: 50Kbps ARPANET, 56Kbps CSNET, 1.544Mbps (T1) NSFNET, plus satellite
and radio connections - Hosts: 1961 |
1986 |
The Internet Engineering Task Force or IETF was created to serve as a forum for
technical
coordination by contractors for DARPA working on ARPANET, US Defense Data Network (DDN), and the Internet
core gateway system. |
Backbones: 50Kbps ARPANET, 56Kbps CSNET, 1.544Mbps (T1) NSFNET, plus satellite and radio connections - Hosts: 2308 |
1987 |
BITNET and CSNET merged to form the Corporation for Research and Educational
Networking (CREN), another work of the National Science Foundation. |
Backbones: 50Kbps ARPANET, 56Kbps CSNET, 1.544Mbps (T1) NSFNET, plus satellite
and radio connections - Hosts: 28,174 |
1988 |
Soon after the completion of the T1 NSFNET backbone, traffic increased so quickly
that plans immediately began on upgrading the network again. |
Backbones: 50Kbps ARPANET, 56Kbps CSNET, 1.544Mbps (T1) NSFNET, plus satellite
and radio connections - Hosts: 56,000 |
1990 |
(Updated 8/2001) Merit, IBM and MCI formed a not for profit corporation called ANS, Advanced Network & Services, which was to conduct research into high speed networking. It soon came up with the concept of the T3, a 45 Mbps line. NSF quickly adopted the new network and by the end of 1991 all of its sites were connected by this new backbone.
While the T3 lines were being constructed, the Department of Defense disbanded the ARPANET and it was replaced by the NSFNET backbone. The original 50Kbs lines of ARPANET were taken out of service.
Tim Berners-Lee and CERN in Geneva implements a hypertext system to provide efficient information access to the members of the international high-energy physics community. |
Backbones: 56Kbps CSNET, 1.544Mbps (T1) NSFNET, plus satellite and radio
connections - Hosts: 313,000 |