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Xbox

Xbox is a game console developed by Microsoft to provide players with a more realistic and immediate interactive experience than current consoles and to gain Microsoft a leadership position in the game console market.

XForms

A future version of HTML Forms, based on XML and XHTML. Differs from HTML forms by separating data definition and data display. Providing richer and more device independent user input.

XHTML

Extensible Hypertext Markup Language
HTML reformulated as XML. XHTML is the latest version of HTML. Developed by W3C.

XML

Extensible Markup Language
A system for sharing complex data structures and documents across multiple platforms. It is used to encode documents and serialize data with users able to define their own tags. It is the basis of the feeds and syndication that are driving web 2.0 content distribution.

XML Document

A document written in XML.

XML DOM

XML Document Object Model
A programming interface for XML documents developed by W3C.

XML Schema

A document that describes, in a formal way, the syntax elements and parameters of a web language. Designed by W3C to replace DTD.

XML Vocabularies

Customized XML-based markup languages, such as XHTML for web content, CML for chemistry, MathML for mathematical content and formulas, and XBRL for financial data.

XPath

XPath is a set of syntax rules (language) for defining parts of an XML document. XPath is a major part of the W3C XSL standard.

XSL

Extensible Stylesheet Language
A suite of XML languages developed by W3C, including XSLT, XSL-FO and XPath.

XSL-FO

XSL Formatting Objects
An XML language for formatting XML documents. A part of XSL developed by W3C.

XSLT

XSL Transformations
An XML language for transforming XML documents. A part of XSL developed by W3C.

XQuery

XQuery is a set of syntax rules (language) for extracting information from XML documents. XQuery builds on XPath. XQuery is developed by W3C.

XVID

An open source MP4 codec used by programmers to develop software and video.

YouTube

An Internet video sharing site that has created a huge social phenomenon. Users upload and share videos. The company was bought by Google in 2006 for $1.65 billion.

ZIP

A compressing format for computer files. Commonly used for compressing files before downloading over the Internet. ZIP files can be compressed (ZIPPED) and decompressed (UNZIPPED) using a computer program like WINZIP.

3IVX

3ivx is a codec suite that allows the creation of MPEG-4 compliant data streams. It has been designed around a need for decreased processing power for use mainly in embedded systems.

3GP

3GP is a multimedia container format defined by the Third Generation Partnership Project (3GPP) for use on 3G mobile phones.

@

On the Internet, @ (pronounced "at" or "at sign" or "address sign") is the symbol in an e-mail address that separates the name of the user from the user's Internet address.