A self-contained computer system specialized for network use. Its applications are pre-installed, and access to setup and configuration is via a Web browser. Server appliances may provide a single application or several applications; for example, a single device may provide file server, Web server, mail server and firewall capabiliies.
Plug In and Go
Server appliances are designed to be plugged into the network and configured, loaded with files and begin working immediately with limited or no technical support, at least for a power user or experienced network administrator. The appliance may also include a RAID-based disk system and redundant power supplies to provide an increased level of fault tolerance.
The router is often considered the first server appliance, because it plugs into the network and performs the single function of packet forwarding. However, routers come in many sizes and complexities, the larger ones requiring significant technical expertise and detailed knowledge of the network. See Internet appliance.
The Qube
This 8\" cube from Sun, which acquired Cobalt Networks, is an \"all-in-one\" Internet server appliance. Used for public Web sites or intranets, the Qube includes Web and mail servers, discussion groups, firewall, document indexing and HTML editing. (Image courtesy of Sun Microsystems, Inc.)
Plug In and Go
Server appliances are designed to be plugged into the network and configured, loaded with files and begin working immediately with limited or no technical support, at least for a power user or experienced network administrator. The appliance may also include a RAID-based disk system and redundant power supplies to provide an increased level of fault tolerance.
The router is often considered the first server appliance, because it plugs into the network and performs the single function of packet forwarding. However, routers come in many sizes and complexities, the larger ones requiring significant technical expertise and detailed knowledge of the network. See Internet appliance.
The Qube
This 8\" cube from Sun, which acquired Cobalt Networks, is an \"all-in-one\" Internet server appliance. Used for public Web sites or intranets, the Qube includes Web and mail servers, discussion groups, firewall, document indexing and HTML editing. (Image courtesy of Sun Microsystems, Inc.)
 | Reproduced with permission from Computer Desktop Encyclopedia. Copyright (c) 1981-2009 The Computer Language Company Inc. All rights reserved. |
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