Worldwide

X-ray

named it X-radiation to signify an unknown type of radiation (X represents the “unknown” in math)

Academic & Science

Worldwide

x64

64-bit version of the x86 instruction set

Computing

Worldwide

x86

generic name for Intel processors released after the original 8086 processor

Computing

Worldwide

xACT

X Audio Compression Toolkit

Computing

Worldwide

XAML

eXtensible Application Markup Language

Computing

Worldwide

XAMPP

X (cross plaftorm), Apache, MySQL, PHP, Perl

Computing

India

XAT

Xavier Aptitude Test

Academic & Science

India

XBKJ

Bikramganj

Transport & Travel

Worldwide

XBL

XML Binding Language

Computing

Worldwide

Xbox

shortened from DirectX box

Computing