MGMT 3265 Lecture Notes - Lecture 6: Local Area Network, Wide Area Network, Metropolitan Area Network
9 Feb 2020
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Document Summary
Size of computer networks: there are various types of computer networks, ranging from small to worldwide. They include (from smallest to largest): personal area networks (pans, local area networks (lans, metropolitan area networks (mans, wide area networks (wans, the internet. Local area networks: a local area network (lan) connects two or more devices in a limited geographical region. A router is a communications processor that routes messages from a. Lan to the internet, across several connected lans, or across a wide area network such as the. Network fundamentals: analog and digital signals, communications media and channels, network protocols, types of network processing. Communications channels: twisted-pair wire, coaxial cable, fibre optic cable. Packet switching: packet switching requires the use of the tcp/ip protocols and a network infrastructure (such as the internet) to support it. Tcp: establishes a connection between computers to manage the movement of the packets, sequences the packets and transfers them, acknowledges the packets that have been sent.
