Compaq 9900 Manuel D’Utilisation
124 Acronyms
and
Abbreviations
TC390
Hitachi TrueCopy – S/390
®
TC390A
Hitachi TrueCopy – S/390
®
Asynchronous
TID target
ID
TPF Transaction
Processing
Facility
TSO
Time Sharing Option (an IBM
®
System/370 operating system option)
UCB
unit control block
UIM
unit information module
UL Underwriters’
Laboratories
µm micron,
micrometer
VA volt-ampere
VAC volts
VAC volts
AC
VDE
Verband Deutscher Elektrotechniker
VM
Virtual Machine (an IBM
®
S/390
®
system control program)
VOLID volume
ID
volser volume
serial
number
XRC
Extended Remote Copy (an IBM
®
S/390
®
host software function)
VSE Virtual
Storage
Extension (an IBM
®
S/390
®
operating system)
VTOC
volume table of contents
W watt
WLM
WLM
Workload Manager (an IBM
®
S/390
®
host software function)
XA
System/370 Extended Architecture
XDF
Extended Distance Feature (for ExSA channels)