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XMCL

Short for Extensible Media Commerce Language, an XML-based REL proposed by RealNetworks and then abandoned.

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 character’s body, excluding ascenders and descenders.

xVM

The name used by Sun Microsystems for its virtualization and management software. Also called Sun xVM, it is a Solaris-based hypervisor that enables servers to run multiple operating systems simultaneously on a single computer, addressing both desktop and server virtualization. The name itself, according to Sun, represents the intersection (x) of virtualization and management (VM). […]

xD-Picture Card

Abbreviated as xD (Extreme Digital), the xD-Picture Card is a type of removable flash memory designed for use in digital cameras. The xD is ultra-compact with its size of 20mm x 25mm x 1.7mm. The xD-Picture Card was developed by Fuji film and Olympus and are used in many models of digital cameras made by […]

xDSL

Refers collectively to all types of digital subscriber lines, the two main categories being ADSL and SDSL. Two other types of xDSL technologies are High-data-rate DSL (HDSL) and Very high DSL (VDSL). DSL technologies use sophisticated modulation schemes to pack data onto copper wires. They are sometimes referred to as last-mile technologies because they are […]

XviD

An open source MPEG-4 video codec. XviD was created to offer a free alternative to other commercial video codecs. The XviD codec makes it possible to compress a full-length DVD-quality movie enough to fit on one or two CDs, depending on the length of the movie. To play XviD videos you first need to install […]

XrML

Short for Extensible Rights Markup Language, an XML-based REL for expressing rights and conditions associated with digital content, Web services, or any digital resource.

Xmodem

Originally developed in 1977 by Ward Christensen, 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 […]

Xlet

An application that is written in Java using the MHP (Multimedia Home Platform) API.

Xirrus Wi-Fi Array

An architecture designed to replace switched Ethernet on the desktop as the primary network connection. The Xirrus Wi-Fi Array architecture displaces both overlay Wi-Fi offerings and wired Ethernet to the desktop. It integrates 4, 8, 12, 16 or 24 802.11abg+n radios coupled to a high-gain directional antenna system into a single device along with an […]

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