ULTRIX
DECnet
AppleTalk routes display
USE command
User accounts
User authentication
User groups
User interface
User privilege level modified events
V
VERIFICATION characteristic
Volatile Random Access Memory (VRAM)
W
Wildcards, using in command line
Windows Internet Naming Service (WINS) autoconfigure feature
X
XON/XOFF
characters
Z
ZERO INTERNET NAME RESOLUTION COUNTERS command
ZIP
AppleTalk status display