Computer networks are interconnections of many computers. They share resources such as electronic mail, bulletin boards, and access to unique databases. Think of them as information highways for data. Networks are changing the computing paradigm from "number-crunching" to communicating. They have spawned industries such as the online industry, a collection of organizations providing information and communication services to remote customers via dial-up modems. In a computer network the individual stations, called "nodes," may be computers, terminals, or communication units of various kinds. Networks that are contained within a building or small geographical area are called local-area networks, or LANs. Below are articles on computer networking and guides to help in networking computers.
