X
X client
X Consortium
X Image Extension
X protocol
X server
X terminal
X Window System
X-1
X-Designer
x-scm
X-Windows
X.12
X.208
X.209
| X.21
X.214
X.215
X.216
X.217
X.219
X.224
X.225
X.226
X.227
X.229
X.25
X.28
X.29
X.3
| X.400
X.409
X.500
X.680
X.75
X.desktop
X/Open
X/open Portability Guide
X/Open System Interface
X11R4
X11R5
X11R6
X2
X3J16
X3T10
|