Information Regarding Data Communication and Computer Networks : A Quick Review

The ability for computers to connect is provided by a computer network, sometimes referred to as a data network. Data links in computer networks are used to transfer data between networked computing devices. Cable or wireless media are used to build network links between nodes. The most well-known computer network is the Internet. Computer components known as network nodes originate, carry, and terminate data on a network. Nodes include hosts including desktop computers, mobile devices, servers, and networking hardware. When two devices can exchange data without being physically connected, they are said to be networked together. Access to the Internet, the shared use of application and storage servers, printers, fax machines, and email and instant messaging applications are all made possible via computer networks. Computer networks vary depending on the physical medium used to transmit signals, the communications protocols used to manage network traffic, and the scale, topology, and organizational objective of the network.