Network

A computer network or data network is a  that allows  to exchange . In computer networks, networked computing devices pass data to each other along data connections. The connections between nodes are established using either  or . The best-known computer network is the Internet.

Network computer devices that originate, route and terminate the data are called . Nodes can include s such as s and s, as well as . Two devices are said to be networked when a device is able to exchange information with another device.

Computer networks support applications that provide access to the World Wide Web, shared use of , printers, and fax machines, and use of email and  applications. Computer networks differ in the physical media used to transmit their signals, the communications protocols to organize network traffic, the network's size,  and organizational intent.