W
W3 World Wide Web
W4WG Windows for Workgroups
WABI Windows Application Binary Interface
WAIS Wide Area Information Service
WAN Wide Area Network
WATM Wireless ATM
WATS Wide Area Telecommunications Service
WHAT Wireless Hybrid Asynchronous Time-bounded
WIMP Windows, Icons, Mice and Pointers
WINS Windows Internet Name Service
WMAC Wireless Media Access Control
WMF Windows metafile
WORM Write Once, Read Many times
WOSA Windows Open Services/Systems Architecture
WRED Wrong Reading Emulsion Down
WREU Wrong Reading Emulsion Up
WS WorkStation
WTO Write To Operator
WUS Word Underscore
WWW World Wide Web
WXTRN Weak External Reference
WYSIWYG What You See Is What You Get
X
XA EXtended Architecture
XIP Execute In Place
XLT Transaction List Table
XMS Extended Memory Specification
XT eXtended Technology
Y
Y2K Year 2000
YIQ (color components in NTSC color space)
YUV (color components in SECAM and PAL color spaces)
Z
ZBR Zero Bug Release
ZD Zero Defects
ZF Zero Flag