| USIA |
US Information Agency |
| USIM |
Universal Subscriber Identification/Identity Module |
| USK |
Unterhaltungssoftwareselbstkontrolle |
| USKA |
Union Schweizer Kurzwellenamateure |
| USL |
UNIX System Laboratories (AT+T, Novell) |
| USLE |
UNIX System Laboratories Europe |
| USM |
User-based Security Model |
| USN |
Update Sequence Number |
| USO |
UNIX Software Operation |
| USOC |
Uniform Service Order Code |
| USRT |
Universal Synchronous Receiver Transmitter |
| USSA |
Universal Storage System Architecture |
| USTA |
US Telephone Association |
| USV |
Unterbrechungsfreie Stromversorgung, UPS |
| USW |
Ultra Short Wave |
| UT |
Universal Terminal/Time |
| UTC |
Unicode Technical Committee |
| UTC |
Universal Time Coordinated |
| UTF |
Unicode Transformation Format (UTF-8, UTF-16, UTF-32) |
| UTI |
Universal Text Interchange |
| UTL |
User Trailer Label |
| UTLB |
Unified TLB |
| UTMA |
Ultra Thin Client Multiple Access |
| UTNET |
University of Texas Network |
| UTP |
Universal Personal Telephone Service |
| UTP |
Unshielded Twisted Pair |
| UTRAN |
UMTS Radio Access Network |
| UUCP |
UNIX to UNIX Copy Program/Protokoll |
| UUID |
Unique Universal Identifier (DCE) |
| UULP |
Unified User Level Protocol |
| UUS |
User to User Signalling |
| UUU |
Unknown UNIX User (J. Random Hacker?) |
| UVL |
User Volume Label |
| UWB |
Ultra Wide Band |
| UWG |
Gesetz gegen den unlauteren Wettbewerb |
| UWM |
Universal Window Manager |
| V |
Value, Video, Virtual |
| V24 |
V.24(CCITT-Norm für eine serielle Schnittstelle) |
| V4FSL |
System V Release 4 File System Layout |
| VA |
Vertical Alignment |
| VA |
Volladdierer |
| VA |
Virtual Address |
| VA |
Vulnerability Assessment |
| VAB |
Value Added Business |
| VACM |
View-based Access Control Model |
| VAD |
Value Added Driver/Disaster/Dealer |
| VAD |
Voice Activity Detection |
| VAD |
Value Assignment Delay |
| VADCG |
Vancouver Amateur Digital Communications Group |
| VADD |
Value Added Disk Driver |