A U.S.-based satellite radio provider that offers North American-based services. XM and and competing satellite radio provider, Sirius, merged in 2007 to create a single satellite radio network in the United States and Canada. Since the merger, XM Satellite Radio has been operated by Sirius XM Radio.
- XOR operator
Known as the exclusive OR operator, a Boolean operator that returns a value of TRUE only if just one of its operands is TRUE. In contrast, an inclusive OR operator returns a value of TRUE if either or both of its operands are TRUE.
(Pronounced exo-tickle) An open source object-oriented scripting language that is based on OTcl but adds several new concepts. XOTcl was intended to develop language support for the implementation of design patterns, where design patterns can be added or removed at runtime.
(1) See Extreme Programming. (2) See Windows XP.
XQuery or XML Query Language is a W3C specification that provides flexible query facilities to extract data from real and virtual documents and collections both locally and on the World Wide Web, providing interaction between the Web world and the database world. It is a standardized way of searching through semi-structured data that is either […]
- XML Schema Definition (XSD)
Short for XML Schema Definition, a way to describe and validate data in an XML environment. (A schema is a model for describing the structure of information.) XSD is a recommendation of the W3C. XSD has advantages over earlier XML schema languages, such as DTD. Because XSD is written in XML, there is no need […]