Explain The ARPANet, ARPANet Evolves into Internet
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The ARPANet (1968-1970’s)
• Paul Baran– RAND Corp, early 1960s
– Communications networks
that would survive a major
enemy attack
• ARPANet: Research vehicle for
“Resource Sharing Computer
Networks”
– 2 September 1969: UCLA
first node on the ARPANet
– December 1969: 4 nodes
connected by 56 kbps phone
lines
– 1971: First Email
– 1970’s: <100 computers
ARPANet Evolves into Internet
• First E-mail SPAM message: 1 May 1978 12:33 EDT
• 80-83: TCP/IP, DNS; ARPANET and MILNET split
• 85-86: NSF builds NSFNET as backbone, links 6 Supercomputer
centers, 1.5 Mbps, 10,000 computers
• 87-90: link regional networks, NSI (NASA), ESNet (DOE),
DARTnet, TWBNet (DARPA), 100,000 computers