
Hostnames serve as memorable labels for the nodes, rarely changed after initial assignment.

They are identified by network addresses, and may have hostnames. The nodes of a computer network can include personal computers, servers, networking hardware, or other specialised or general-purpose hosts. These interconnections are made up of telecommunication network technologies, based on physically wired, optical, and wireless radio-frequency methods that may be arranged in a variety of network topologies.

The computers use common communication protocols over digital interconnections to communicate with each other.

A computer network is a set of computers sharing resources located on or provided by network nodes.
