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Local Area Networks (LAN)

Local Area Networks (LAN). By: Andrew Barfoot. History:. LANs were developed in the 1960’s and in 1970 Lawrence Radiation Laboratory reported on the growth of their “Octopus” network.

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Local Area Networks (LAN)

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  1. Local Area Networks (LAN) By: Andrew Barfoot

  2. History: • LANs were developed in the 1960’s and in 1970 Lawrence Radiation Laboratoryreported on the growth of their “Octopus” network. • Evolution of LAN occurred with the introduction of TCP/IP between 1973 and 1974, and replaced use of IPX, AppleTalk, and NBF.

  3. LAN vs. WAN • High Data Transfer Rates (DTR). • Cover small areas such as a household or a school. • Do not require leased telecommunication lines. • Low cost. • Cover wider areas such as businesses and governments. • Higher speed in the multiple gigabits range.

  4. Technological differences: • Different types of LAN connections include: • Topology: Where the LAN is located, and how, such as in a ring or straight line. • Protocol: Depending on the rules and specifications of encoding for sending data or deciding whether the LAN is using “Peer-to-Peer” or “Client/server Architechture”.

  5. Network Administrator: • Network administrators are responsible for the upkeep of a local area network in any geometrical area.

  6. 10Base5 • 10Base5 was the original method of LAN connectivity via ethernet. To the right is a diagram of a LAN connection with use of 10Base5.

  7. References: • http://en.wikipedia.org/wiki/Local_area_network • http://en.wikipedia.org/wiki/LAN_party • http://www.webopedia.com/TERM/L/local_area_network_LAN.html • http://www.webopedia.com/TERM/L/lan_network_administrator.html • http://en.wikipedia.org/wiki/TCP/IP • http://en.wikipedia.org/wiki/10BASE5

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