X Window System is a client/server system for running a graphical user interface (GUI) that uses windows in a UNIX environment.

X-Series Protocols, also known as X-Series recommendations, is a series of standards and recommendations developed by the International Telecommunication Union (ITU) relating to data communication...

XML stands for Extensible Markup Language, a family of standards for the exchange of structured information that was developed by the World Wide Web Consortium (W3C).

XHTML stands for Extensible Hypertext Markup Language, a proposed version of Hypertext Markup Language (HTML) from the World Wide Web Consortium (W3C).

Definition of x86 Platform in Network Encyclopedia. What is x86 platform? x86 is a computer platform whose processor is based on the Intel 386 architecture microprocessor. The x86, or...

X.500 is a recommendation from the International Telecommunication Union (ITU) that specifies a global, hierarchical directory service.