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A server in computing is:

  • The term is now also used to mean the actual computer on which the software runs. Originally server software would be located on a mainframe computer or minicomputer. These have largely been replaced by computers buit using a more robust version of the microprocessor technology that is used in personal computers, and the server term was adopted to describe such microprocessor based machines.

Server Hardware

A Server computer shares its resources, such as peripherals and file storage with the users' computers, called clients, on a network. It is possible for a computer to be a client and a server simultaneously, by connecting to itself in the same way a separate computer would.

Many new devices now come with server capabilities. The X-Internet, Web Services, and Microsoft's .NET initiative all work to make even the smallest system a server.

Many large enterprises employ numerous servers to support their needs. A collection of servers in one location is often referred to as a server farm.

Server Operating Systems

The rise of the microprocessor based server was facilitated by the development of several versions of Unix to run on the Intel microprocessor architecture, including Solaris, Linux and FreeBSD. The Microsoft Windows series of operating systems also now includes server versions that support multitasking and other features required for servers, beginning with Windows NT.

Historical Note

Mainframes and minicomputers were originally accessed using dumb terminals, which were unable to carry out any significant processing. This largely ended with the widespread use of personal computers by users.

See Also