NOTES FROM CLASS (CIS 178)

The Internet

What is the Internet?

A bunch of inter-connected computers (networks)

A network of networks Computers/servers Routers/switches Lots of cables (cat 5/6 cables, coax cables, fiber optic)

1957

Sputnik is launched by the USSRMotivated the US to enhance it’s own

technologyBeginning of space raceUrged the development of DARPA/ARPA

1960s

1961 – first packet switching theory1962 – galactic network concept1966 – Frist ARPANET plan1969 – first 4 nodes make the ARPANET

1970’s

1971 – 15 nodes on the Net1972 – E-mail is born @ is first used1973 – ARPANET goes international to

England1976 – Elizabeth II sends an e-mail1979 – Usenet

1980’s

1980 – ARPANET crashes because of a virus1982 – TCP/IP is standard1984 – Domain Name System introduced1986 - NSFNET

1990’s

1990 – ARPANET ceases to exist1991 – NSFNET upgrades to T3 44Mbps1993 – InterNIC created – buy domain names1993 – whitehouse.gov1995 – NSFNET reverts to research only1999 – TLD: .com, .net, .edu, .jp, .uk, .mil

The Web

1991 – World Wide Web is created1993 – Mosaic is released (Marc Andreessen)1994 – Netscape is formed by M.A.1995 – Microsoft releases Internet Explorer1996 – Opera is released1997 – AOL has 9 million subscribers1998 – Mozilla is formed.2000 – AOL has 23 million subscribers

More of the Web

2002 – IE has 95% market share2003 – Safari is released2004 – Firefox is released2006 – IE 7 release 5 years after IE 62008 – Google Chrome is releaseNew browser wars begin