The History of the Internet

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The History of the Internet
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The 1960s

• The first global network of computers was in
  1962, at the Defense Advanced Research Projects
  Agency (DARPA).

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The 1970s

• The Internet was first known as ARPANET because
  it was developed under a contract led by the
  Advanced Research Projects Agency (ARPA).
• E-mail was adapted for ARPANET in 1972.
• Usenet was started in 1979 and led to the
  development of newsgroups.

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The 1980s

• Commands became a lot easier for people to learn
  to use the Net.
• Brewster Kahle at Thinking Machines, Corp.,
  developed a Wide Area Information Server (WAIS)
  which indexed the full text of files in a
  database and allowed searches of the files.

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The 1990s

• In 1991, the first friendly interface to the
  Internet was developed at the University of
  Minnesota.
• Mosaic, a graphical browser, was developed in
  1993 by Marc Andreessen at the National Center
  for Supercomputing Applications.

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The 1990s continued

• The Internet was initially funded by the
  government so it was limited to research,
  education and government uses.
• Local dialup services connected to the Internet
  in 1992. Delphi was the first national commercial
  online service to offer Internet access to its
  dialup subscribers. It offered an e-mail
  connection in July 1992 and full Internet service
  in November 1992.

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The 1990s continued

• All limitations on commercial use disappeared in
  May, 1995 when all Web traffic started relying on
  commercial networks such as AOL, Prodigy, and
  CompuServe.

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The 2000s

• The current trend with major implications for the
  future is the growth of high-speed connections.
• New technologies such as cable modems, digital
  subscriber lines (DSL) and satellite broadcast
  are much faster and are widely available and
  growing fast.

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Terminology

• Router - an electronic device that connects two
  or more networks.
• ISP Internet Service Provider. Examples AOL,
  Time Warner Roadrunner, SBC Global.
• Search Engine - helps users find web pages on a
  given subject using keywords. Examples Yahoo,
  Google, AltaVista, Lycos.
• Modem enable data transmission from analog to
  digital.

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Terminology continued

• DSL Digital Subscriber Line, is broadband
  Internet access through telephone lines.
• SPAM unsolicited e-mail.
• Banner Advertising - advertising scrolled across
  the top of internet sites.
• URL Universal Resource Locator the address"
  of a webpage typed into the browser to go to
  specific sites.

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Terminology continued

• What do the following extensions mean at the end
  of a URL?
• .edu
• .org
• .net
• .com
• .gov