Transmission on WANs & VANs - Packet Switching
- Frame Relay
- like packet switching, no error correction
The Internet - What is the Internet?
- Who owns the Internet?
- Why does the Internet exist?
- 1970 ARPANET - 15 nodes
- 1972 first email
- 1982 TCP/IP becomes internet standard
- Transmission Control Protocol/Internet Protocol
- 1984 ARPANET - 1,000 nodes
- 1986 NSF-Net backbone on ARPANET
- 1987 ARPANET - 10,000 nodes
Evolution of the Internet - 1988 - businesses begin to connect to system for research purposes
- 1989 ARPANET - 100,000 nodes
- 1989 link email between CompuServe and ARPANET
- 1990 ARPANET becomes the Internet
Public Networks CompuServe - 1969 started in Cleveland with single computer
- 1979 provided first email
- 1980 started national service
- Mid-1980s largest online service
- 1995 3 Million users
- 1997 purchased by AOL
- 1986 pilot in Atlanta, Hartford, San Francisco
- 1988 national service launched
- 1994 1st to offer WWW access
- 1999 Prodigy Classic discontinued (209,000 members)
Public Networks AOL - 1991 AOL for DOS
- 1993 AOL for Windows
- 1997 bought CompuServe
- 1999 10 Million users
- Estimated to have distributed over 1 Billion discs of over 1,000 different disk/CD styles
Internet Statistics - http://www.internetworldstats.com/stats.htm
- http://whois.sc/internet-statistics/
- Domain Counts, updated daily
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