All visitors are logged and counted. Click on this icon to view the visitor-statistics. The grand encyclopedia of computer terminology This encyclopedia is compiled by produkties.uithuizen.net This explains the most common computerterms which you can encounter. This list was compiled from several sources. It does not explain HTML commands in detail because for this purpose another encyclopedia is available.The most recent update of this document can be found at: http://www.uithuizen.net/encyclopedia/terms.php Choose a list of terms you want to see .A-.Z   0-9   A   B   C   D   E   F   G   H   I   J   K   L    M   N   O   P   Q   R   S   T   U   V   W   X   Y   Z Type a term you want to search for: and You want more information? Well click on these links: Random House Personal Computer Dictionary x      x-height   XXXVideo 29 items available in this category x-height In typography, the height of a lowercase x in a specific font. This is also called the body height, as it represents the height of the lowercase characters body, excluding ascenders and descenders. X-Windows A windowing and graphics system developed at the Massachusetts Institute of Technology (MIT). MIT has placed the X-Windows source code in the public domain, making it a particularly attractive system for UNIX vendors. Almost all UNIX graphical interfaces, including Motif and OpenLook, are based on X-Windows. X.25 See under CCITT. X.400 See under CCITT. X.500 See under CCITT. XABOT Known spyware or adware. XDialer Known spyware or adware. XDiver Known spyware or adware. Xenix A version of UNIX that runs on PCs. Xenix was developed by Microsoft Corporation and is compatible with AT&T´,s System V definition. Xfer Short for transfer. XGA eXtended Graphics Array. A color video standard introduced by IBM in 1991. XGA was designed to replace the older 8514/A video standard. It supports the same resolutions, 1024 x 768 pixels with 256 colors or 640 x 480 pixels with 65,536 colors, but with more simultaneous colors. In addition, XGA allows monitors to be non-interlaced. XILON VIRUS Known spyware or adware. XLoader Known spyware or adware. Xlocator Known spyware or adware. Xlocator/Winlocator Known spyware or adware. XML Acronym of Extended Markup Language Xmodem Originally developed in 1977 by Ward Christiansen, Xmodem is one of the most popular file-transfer protocols. Although Xmodem is a relatively simple protocol, it is fairly effective at detecting errors. It works by sending blocks of data together with a checksum and then waiting for acknowledgment of the block´,s receipt. The waiting slows down the rate of data transmission considerably, but it ensures accurate transmission. Xmodem can be implemented either in software or in hardware. Many modems, and almost all communications software packages, support Xmodem. However, it is useful only at relatively slow data transmission speeds (less than 4,800 bps). Enhanced versions of Xmodem that work at higher transmission speeds are known as Ymodem and Zmodem. XMS eXtended Memory Specification, a specification which allows multiple programs to share extended (above 1 megabyte) memory and noncontiguous memory above 640K. See also UMB. XOMBE Known spyware or adware. XOR Exclusive OR. A Boolean operator that returns a value of TRUE only if its two operands have different values. Also EOR. XT eXtended Terminal, a more or less old-fashioned type of pc. It is slower than an AT. Xupiter Known spyware or adware. Xupiter.OrbitExplorer Known spyware or adware. Xupiter.OrbitExplorer / Aornum Known spyware or adware. Xupiter.Sqwire Known spyware or adware. XXXDial Known spyware or adware. Xxxmovies Known spyware or adware. Xxxtoolbar Known spyware or adware. XXXVideo Known spyware or adware. This encyclopedia is for informational purposes only. All (registered) trademarks mentioned are property of their respective owners. No infringement of third party rights intended. The author cannot garantuee that the information presented is complete or that it contains no errors.