Networking is the use of physical links to connect individual isolated workstations or hosts together to form data links for the purpose of resource sharing and communication. Communication is the exchange and transfer of information between people through some kind of media. Network communication is the connection of individual isolated devices through a network to achieve communication between people, people and computers, and computers and computers through information exchange.
The most important aspect of network communication is the network communication protocol. There are many network protocols available today. The three most commonly used network protocols in LANs are MICROSOFT's NETBEUI, NOVELL's IPX/SPX and TCP/IP protocol. The appropriate network protocol should be chosen according to the needs.