Networking, also known as computer networking, is the practice of transporting and exchanging data between nodes over a shared medium in an information system. The network comprises not only the design, construction, and use of a network, but also the management, maintenance, and operation of the network infrastructure, software, and policies.
A computer network enables devices and endpoints to be connected to each other on a local area network (LAN) or to a larger network, such as the internet or a private wide area network (WAN). This is an essential function for service providers, businesses, and consumers worldwide to share resources, use or offer services, and communicate. Networking facilitates everything from telephone calls to text messaging to streaming video to the internet of things (IoT).