IT concepts: Internetwork

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The Creation of the Internet and its Development..

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Presentation transcript:

IT concepts: Internetwork TCP/IP history Skills: none IT concepts: Internetwork This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 License.

The TCP/IP history Internet concepts Applications Technology (TCP/IP) Implications for Individuals Organizations Society Internet skills Application development Content creation Text Images Audio Video

The vision Vannevar Bush’s “memex” from As We May Think, 1945

The vision “In a few years, men will be able to communicate more effectively through a machine than face to face”. “What will on-line interactive communities be like? ... They will be communities not of common location, but of common interest. In each field, the overall community of interest will be large enough to support a comprehensive system of field-oriented programs and data”. Licklider and Taylor, On-Line Man Computer Communication, 1968 (revision of a 1962 conference paper)

The vision Doug Engelbart, 1968, demonstrating systems designed to augment human intelligence (begun in 1962)

The ARPANet -- December 5, 1969 http://som.csudh.edu/cis/lpress/history/arpamaps/ Connected dissimilar computers, not networks Like a widely dispersed local area network Like a LAN with Macs and Windows PCs

TCP/IP motivation ARPA wanted to connect several separate, dissimilar networks to create an internetwork. Figure from the paper referenced in the following slide. Above is a figure from the paper proposing TCP, an internetworking protocol …

A Protocol for Packet Network Intercommunication,” IEEE Trans on Comms, Vol Com-22, No 5 May 1974. Kahn, Robert E.; Cerf, Vinton G. "A Protocol for Packet Network Intercommunication", 1974 IEEE. Reprinted, with permission, from IEEE Trans on Comms, Vol Com-22, No 5, May 1974. http://www.cs.princeton.edu/courses/archive/fall06/cos561/papers/cerf74.pdf Vinton G. Cerf Robert E. Kahn

TCP demonstration, October 1977 http://www.sri.com/about/timeline/images/1977map_000.jpg Interconnected three networks: ARPANet, SATNet, and the San Francisco Bay area packet radio network

TCP/IP milestones March 1978, TCP split into TCP and IP because packet voice applications required fast transport without error checking (UDP) January 1 1983, ARPAnet converts to TCP/IP, and splits into Milnet for operational applications and ARPANet for research 1985, The U.S. National Science Foundation initiates the NSFNET program with the goal of connecting all US and many foreign universities 1986, NSF deploys a six node network with 56 Kbps links using TCP/IP Which day was the “birth of the Internet?”

Other early protocols IBM System Network Architecture, 1974 Digital Equipment Corporation DECNet, 1975 International Organization for Standardization model, 1978

Cool historic video Computer Networks – Robert Kahn describing the ARPANet, J. C. R. Licklidder on motivation and applications, and others. The Demo, Douglas Engelbart demonstrates personal computer and networking prototypes that inspired generations of products and research