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Element 4.3 Computer Networks 2. Types of Networks A LAN (local area network) is a collection of computers connected together over a small area, usually a single building or site (e.g. a school). If a school was to have a LAN it would own all the equipment and be able to run the network as it sees fit. If changes need to be made to the network, such as adding new terminals, it will be relatively easy and cheap. A WAN (wide area network) consists of computers connected over a large area using telecommunications equipment, such as telephone or satellite communications links. A school could have a LAN which is connected to other schools around the country (or world) to form a WAN. WANs are more sophisticated than LANs as the operator has to deal with telecommunications companies and doesn't own all the equipment. Wires between one LAN and another are owned supplied by...

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