A server is a system (software and suitable computer hardware) that
responds to requests across a computer network to provide, or help to
provide, a network service. Servers can be run on a dedicated computer,
which is also often referred to as "the server", but many networked
computers are capable of hosting servers. In many cases, a computer can
provide several services and have several servers running.
Servers operate within a client-server architecture, servers are
computer programs running to serve the requests of other programs, the
clients. Thus, the server performs some task on behalf of clients.
