X server


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X server

[′eks ‚ser·vər]
(computer science)
Software that draws the screen image and handles standard input in an X Windows System; in contrast to typical usage of the term server, an X server is located on the user's computer; the client is the application that is displayed, which may be located on a remote node of the network.

X server

(graphics, operating system)
A process, in an X Window System which controls a bitmap display device and usually also a keyboard and mouse or other pointing device. The X server performs operations on request from client applications, which may be on the same computer or a different computer connected via a network.

Note that typical client-server architectures do input-output on the client and processing on the server whereas in X the terms are reversed as the X server is serving IO rather than processing resources to the application.

If the two computers are not both Unix machines (e.g. one is a Windows machine running VNC) or if a more secure connection is required (e.g. tunneling with ssh), the clients may talk to a proxy X server that forwards the requests to another machine where the real IO takes place.

X server

The software in an X Window system that renders images to the display screen. X servers are the user's desktop or laptop machine. In the early days of X Window, X terminals were widely used, which were hardware dedicated only to X server rendering. See PC X server and X Window. See also Xserve.
References in periodicals archive ?
LANDesk uses Mac OS X Server to spin out OS deployment images via Netboot or HTTP, and it can even deploy Windows OS images to Mac-hosted virtual machines.
today announced customer endorsements for the latest release of WRQ Reflection X(R), a high-powered PC X server.
As a high-powered PC X server, WRQ Reflection X connects Windows users to graphical and character-based applications on UNIX, Linux, OpenVMS and Unisys systems.
Mac OS X and Mac OS X Server present a robust platform for professional digital media production," said Ron Okamoto, Apple's vice president of Worldwide Developer Relations.
1, a PC X server and total solution for UNIX(R) host access.
In fact, Xi Graphics has consistently offered X server support for the latest PC laptop hardware far in advance of other companies or institutions.
This product was developed in response to the tremendous user demand for a working - and supported - X server that would enable PC laptop users to run popular UNIX(TM) operating systems on their machines," comments Andrew Bergin, National Sales Manager for Xi Graphics.
Accelerated X for NT is a streamlined PC X server that delivers maximum performance in a small package.
a leading supplier of X servers for Intel-based UNIX systems, announced today the availability of Accelerated X for Windows NT.
a leading supplier of Intel-based UNIX X servers, announced the availability of Accelerated X for Windows '95, a streamlined PC X server that delivers maximum performance in a small package.
By combining the power of Windows NT with Reflection X, a performance-leader among PC-based X server software, corporate users can create an ideal desktop platform to run heavy duty X-based applications such as CAD or GIS.
In their efforts to build PC X servers that are up to speed with X terminals, vendors have overlooked the fact that end users familiar with Windows generally do not have a high level of expertise in UNIX and networking," said Chris Rogers, market manager for Reflection X.