Mastering Computer Studies: Unleash Your Potential in Computer Science and Hardware
TYPES OF COMPUTER NETWORKSComputer networks are usually classified according to size. The three most common types of networks are:
Local Area Network (LAN).
This is a computer network that is formed whenever computers are connected together in a relatively small geographical area, e.g., in one building or a school. LAN is the smallest size of network & it normally covers an area within the radius of 10M – 3 Km. LAN is usually owned by one organization. However, one LAN can be connected to other LANs over any distance via data transmission lines or wireless media. A LAN connects several Personal Computers to a Server computer. The server computer makes available the resources requested by the other computers (workstations) on a network.
In most LANs, each workstation has its own CPU which it uses to execute programs, but still the workstation user can also access data & devices anywhere on the network. Advantages of LANs.
Metropolitan Area Network (MAN).A MAN is made up of many LANs connected together.It covers a metropolitan (medium-sized geographical) area, e.g., a town or an entire city, within a radius of 5 – 50 Km. Characteristics of MAN
Wide Area Network (WAN).This is the largest size of network.A WAN covers a large geographical area such as an entire country, a continent, or even the whole world. It consists of many LANs and MANs connected together to form one large network such as the Internet.
Characteristics of WAN
Differences between a Local Area Network and a Wide Area Network.
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