| CODE | ABBREVIATION |
|
U&
| CRL Universities and Colleges Research Libraries |
|
U/L
| Universal / Local |
|
U/L
| Upload |
|
UA
| Underground America / Universal Access / Unnumbered Acknowledgment / User Account / User Agent |
|
UAA
| United Anarchists of America |
|
UAE
| Unrecoverable application error (Bane of Windows' users!) / User Agent Entity |
|
UAL
| User Agent Layer |
|
UAM
| User Authentication Method |
|
UAOS
| User Alliance for Open Systems |
|
UAPDU
| User Agent Protocol Data Unit |
|
UART
| Universal Asynchronous Receiver-Transmitter |
|
UAS
| UnAvailable Second |
|
UASFE
| UnAvailable Second Far End |
|
UASL
| User Agent SubLayer |
|
UAV
| Unmanned Air Vehicle |
|
UBCIM
| Universal Bibliographic Control / International MARC |
|
UBD
| User Brain Damage |
|
UBR
| Unspecified Bit Rate |
|
UC
| United Couriers |
|
UCAS
| Universities and Colleges Admissions Service |
|
UCC
| Uniform Code Council / Uniform Commercial Codes |
|
UCD
| Uniform Call Distribution |
|
UCE
| Unsolicited Commerical E-mail |
|
UCET
| Universities Council for the Education of Teachers |
|
UCF
| Underground Computing Foundation / Untouchable Cracking Force |
|
UCHG
| Universities and Colleges Hardware Group |
|
UCISA
| Universities and Colleges Information Systems Association (Formerly UCTG) |
|
UCL
| University College London |
|
UCM
| Universal Cable Module |
|
UCMISG
| Universities and Colleges Management Information Services Group |
|
UCNG
| Universities and Colleges Networking Group |
|
UCoSDA
| Universities' and Colleges' Staff Development Agency |
|
UCR
| Under Color Removal |
|
UCS
| Uniform Communication Standard / Universal Component System |
|
UCSG
| Universities and Colleges Software Group |
|
UCTG
| Universities and Colleges Training Group (Now UCISA) |
|
UCTLIG
| Universities and Colleges Teaching |
|
UD
| Unit Data |
|
UDA
| User-Defined Applications |
|
UDC
| Universal Digital Channel / User Defined Command |
|
UDF
| Universal Disk Format / Universal Data Format / User Defined Functions |
|
UDLC
| Universal Data Link Control |
|
UDMA
| Ultra Direct Memory Access |
|
UDP
| User Datagram Protocol |
|
UDT
| User Defined Type |
|
UDVM
| Universal Data Voice Multiplexer |
|
UE
| User Element |
|
UFC
| Universities Funding Council |
|
UFD
| User Friendly Diagnostics |
|
UFS
| Unix File System |
|
UGC
| University Grants Committee |
|
UHF
| Ultra - High Frequency |
|
UHQ
| Ultra High Quality (image technology) |
|
UI
| Unit Interval / UNIX International / Unnumbered Information / Unnumbered Interrupt / User Interface |
|
UIC
| User Identification Code |
|
UID
| User Identification |
|
UIDE
| User Interface Design Environment |
|
UIF
| United Ignorance Front |
|
UIMS
| User Interface Management Systems |
|
UIS
| Universal Information Services |
|
UIST
| User Interface Software and Technology (symposium) |
|
UITP
| Universal Information Transport Plan |
|
UK
| United Kingdom |
|
UKERNA
| United Kingdom Educational and Research Network Association (formerly the JNT) |
|
UKOLN
| The United Kingdom Office for Library and Information Networking |
|
UKRA
| United Kingdom Registration Authority |
|
UL
| Upload |
|
ULA
| Upper Layer Architecture |
|
ULCC
| University of London Computing Centre |
|
ULCT
| Upper Layer Conformance Testing |
|
ULL
| Unix Linkable Library |
|
ULP
| Upper Layer Protocol / Upper Layer Process |
|
ULTRA
| Underground Legion of Terroristic Research Activists |
|
UMA
| Upper Memory Area |
|
UMB
| Upper Memory Block |
|
UMD
| User Manager for Domains |
|
UME
| UNI Management Entity |
|
UML
| Unified Modeling Language |
|
UMPDU
| User Message Protocol Data Unit |
|
UMSLG
| University Medical-School Librarians Group |
|
UN
| United Nations |
|
UNA
| Upstream Neighbors Address |
|
UNC
| Uniform Naming Convention / Universal Naming Convention |
|
UNHIOL
| University of New Hampshire InterOperability Lab |
|
UNI
| User-to-Network Interface / User-to-Network Interface (ATM specification) |
|
UNICODE
| Unique Universal and Uniform character enCoding |
|
UNISTAR
| UNIversal Single call Telecommunications Answering and Repair |
|
UNISTAR
| Universal Single-Call Telecommunications Answering & Repairing |
|
UNITE
| User Network Interface to Everything |
|
UNIVAC
| Universal Automatic Computer |
|
UNIX
| Uniplexed Information and Computer Systems |
|
UNJEDI
| United Nations Joint Electronic Data Interchange |
|
UNMA
| Unified Network Management Architecture |
|
UNN
| Urine Nation News |
|
unPC
| Politically incorrect |
|
UNTDI
| United Nations Trade Data Interchange |
|
UOF
| Unusual Order Form |
|
UP
| Uni-Processor |
|
UPC
| Universal Product Code / Update Protect Checking / Usage Parameter Control / Utility Port Conditioner |
|
UPH
| Units Per Hour |
|
UPI
| United Phreaker's Incorporated / United Press International |
|
UPN
| Universal Product Number |
|
UPS
| Uninterruptable Power Supply/System / United Parcel Service / United Pirate Syndicate |
|
UPT
| Universal Personal Telecommunications |
|
UPU
| Universal Postal Union |
|
URBAN
| Undaground Rap Blastin Asiatic Newsletter |
|
URG
| Urgent (flag) |
|
URI
| Uniform Resource Indicator |
|
URL
| Uniform Resource Locator |
|
URL
| Uniform Resource Locator / Universal Resource Locator |
|
URL
| Universal Resource Locator |
|
URN
| Underground Rip-Off Network |
|
URR
| Urgent reply requested |
|
URSI
| Union Radio Scientifique Internationale |
|
US
| Unit Separator (ASCII) / United States |
|
USA
| Undedicated Switch Access / United Software Association / United States Alliance (Amiga Group) / United States of America |
|
USA/FLT
| United Software Association/Fairlight |
|
USART
| Universal Synchronous Asynchronous Receiver / Transmitter |
|
USB
| Universal Serial Bus / Upper Side Band |
|
USC
| User Steering Committee |
|
USCIC
| U.S. Country Information Center |
|
USDA
| Uncle Sam's Demo Agency |
|
USDN
| United States Digital Network |
|
USENET
| USEr NETwork |
|
USFDC
| U.S. Financial Data Center |
|
USIBC
| U.S. Integrated Business Center |
|
USIPA
| United States Internet Providers Association |
|
USITA
| United States Independent Telephone Association |
|
USL
| Unix System Laboratories |
|
USM
| UnSharp Masking |
|
USMP
| U.S. Manufacturing Planning |
|
USNC
| United States National Committee |
|
USO
| Universal Service Order |
|
USOC
| Universal Service Ordering Code |
|
USP
| Universal Sampling Plan |
|
USPL
| U.S. Price List |
|
USPS
| United States Postal Service |
|
USR
| U.S. Robotics |
|
USRA
| Universities Space Research Association |
|
USRT
| Universal Synchronous Receiver Transmitter |
|
USSS
| United States Secret Service |
|
UST
| Unresolved Sexual Tension [X-Philes (fans)] |
|
USV
| User Services |
|
UT
| Upper Tester |
|
UTAM
| Unlicensed Transition And Management |
|
UTC
| Universal Time Coordinated (usually listed as Universal Coordinated Time) |
|
UTG
| United Traders of Germany |
|
UTMC
| United Technologies Microelectronics Center |
|
UTOPIA
| Universal Test and Operations PHY Interface for ATM |
|
UTP
| Unshielded Twisted-Pair |
|
UTTP
| Unshielded Telephone Twisted Pair |
|
UTX
| Universal Transaction eXchange |
|
UUCICO
| Unix to Unix Copy Incoming Copy Outgoing |
|
UUCP
| UNIX to UNIX copy [an archaic file transfer program] |
|
UUID
| Universal Unique IDentifier |
|
UUS
| User to User Signalling |
|
UUT
| Unit Under Test |
|
UVC
| Universal Voice Channel |
|
UXU
| Underground Experts United |