Server

A server is an application or device that performs services for connected clients as part of a client-server architecture. A server application is an application program that accepts connections in order to service requests by sending back responses. Server computers are devices designed to run such an application or applications, often for extended periods of time with minimal human direction. Examples of servers include web servers, e-mail servers, and file servers.

Almost the entire structure of the Internet is based upon a client-server model. Millions of servers are connected to the Internet and run continuously throughout the world. Among the many services provided by Internet servers are: the Web; the Domain Name System; electronic mail; file transfers; instant messaging; streaming audio and streaming video, online gaming, and countless others. Virtually every action taken by an ordinary Internet user requires one or more interactions with one or more servers.

[[Category:Hardware]