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1) A network consists of two or more computers that are linked in order to share resources (such as printers and CDs), exchange files, or allow electronic communications. The computers on a network may be linked through cables, telephone lines, radio waves, satellites, or infrared light beams
2)Advantages of Computer Networking
It enhances communication and availability of information.
It allows for more convenient resource sharing.
It makes file sharing easier.
It is highly flexible.
3)Networking hardware, also known as network equipment or computer networking devices, are electronic devices which are required for communication and interaction between devices on a computer network. Specifically, they mediate data transmission in a computer network
4)WAN(Wide Area Network) A Wide Area Network is a network that extends over a large geographical area such as states or countries. A Wide Area Network is quite bigger network than the LAN.
5)The significant difference between them is the geographical area they cover. When we consider the order, PAN is capable of providing network connection around a person, next comes LAN which covers a smaller area; then comes MAN; it covers an area larger than LAN