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The interconnection of set-off devices (or nodes) such as printers, computers, and scanners, etc., through a communication link, is called a Computer Network. The device must be capable of sending or receiving information from other nodes connected within the network. Networks use a distributed type of processing wherein, multiple computers share the work for accomplishing the task. Based on the size, networks are categorized into the LAN, WAN, PAN, MAN, WLAN, CAN.
- Local Area Network (LAN) is a privately owned network having its links in a single office, building, or campus. LANs are designed to allow personal computers or workstations in an organization, to share resources (ex: printers) and exchange information.
- Wide Area Network (WAN) spans a very large area that comprises a country, a continent, or even the whole world.
- Metropolitan Area Network (MAN) is a network similar to LAN, but large than LAN and smaller than WAN. The area covered by a MAN is up to a city, which might be either privately or publicly utilized. A MAN can support data and voice.
- Personal Area Network (PAN) is a network arranged inside a unique individual, ordinarily inside the scope of 10 meters. Computer devices are used to develop the personal area network are laptops, mobile phones, media players, and play station.
- Wireless Local Area Network (WALN) is similar to LAN. It utilizes remote system innovation, for example, Wi-Fi. These kinds of networks don’t necessitate that gadgets depend on physical cables to associate with the system.
- Campus Area Network (CAN) is smaller than MAN but larger than LAN. This network is used in universities and colleges.