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Compiled by Prof. Wm Hitchcock. Need for Internet Stand alone computers Need for sharing resources Physical vs. Virtual access Security issues Centralized.

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Presentation on theme: "Compiled by Prof. Wm Hitchcock. Need for Internet Stand alone computers Need for sharing resources Physical vs. Virtual access Security issues Centralized."— Presentation transcript:

1 Compiled by Prof. Wm Hitchcock

2 Need for Internet Stand alone computers Need for sharing resources Physical vs. Virtual access Security issues Centralized vs. Decentralized communication Circuit switched Packet switched

3 1960’s – call for networks J.C.R. Licklider Intergalactic system: “A network of such [computers], connected to one another by wide-band communication lines [which provided] the functions of present-day libraries together with anticipated advances in information storage and retrieval and [other] symbiotic functions.”

4 The Internet (1969) Four IMP nodes connecting UCLA (Leonard Kleinrock) SRI Stanford Research Institute (Doug Englebart) UCSB Univ of Utah

5 TCP/IP (1970’s) The standardized “rules” for transmitting data over the internet Utilizes the “packet switched” concept

6 1980s/1990s HTML Need for standardized language to separate format from content HTML created by CERN scientist Tim Berners-Lee

7 1990’s Mosaic/Netscape First web browser (combined text & graphics) Marc Andreessen – UI@Champaign-Urbana NCSA Netscape was the 1 st commercial browser Jim Clark (venture capitalist)

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