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Related to servers: Proxy servers, Web servers


This article is provided by FOLDOC - Free Online Dictionary of Computing (


A computer system in a network that is shared by multiple users. Servers come in all sizes from x86-based PCs to IBM mainframes. A server may have a keyboard, monitor and mouse directly attached, or one keyboard, monitor and mouse may connect to any number of servers via a switch (see KVM switch). In datacenters with hundreds and thousands of servers residing in equipment racks, all access is via the network. See server farm, blade server and rack mounted.

A User's Machine Can Be a Server
Stand-alone PCs and Macs can also function as a server to other users on the network even though they serve as a single workstation to one user (see peer-to-peer). In such cases, specific folders are typically configured for sharing rather than the entire hard drive.

Servers Can Be Software Only
The term "server" may refer to both the hardware and software (the entire computer system) or just the software that performs the service. For example, a "Web server" may refer to a dedicated computer running Web server software or to Web server software running with other applications. Servers are classified by their purpose, and the following servers are defined in this encyclopedia.
 application server audio server database server fax server file server intranet server mail server media server merchant server modem server network access server print server proxy server remote access server server appliance streaming server telephony server terminal server Web server

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* Whether enterprises conveniently locate their servers (owned or leased) in tax-haven countries, to evade Article 5's reach;
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