| Term | Description |
|---|
| UA | User Agent + User Area
|
| UAE | Unrecoverable Application Error
|
| UAM | User Authentication Method
|
| UART | Universal Asynchronous Receiver/Transmitter
|
| UAS | User Application Software
|
| UBR | Unspecified Bit Rate
|
| UCE | Unsolicited Commercial Email
|
| UCL | Universal Communications Language
|
| UCS | Unicode Character System + Unicode Conversion Support +
Universal Character Set + User Coordinate System
|
| UCT | Universal Coordinated Time
|
| UD-DVD | Ultra-Definition Digital Video Disk
|
| UDA | Universal Data Access [Microsoft]
|
| UDB | Universal Data Base
|
| UDC | Universal Decimal Classification + User Defined Commands
|
| UDD | User Data Document
|
| UDDI | Universal Description, Discovery and Integration
|
| UDE | Universal Data Exchange
|
| UDEC | Universal Digital Electronic Computer [Burroughs]
|
| UDF | Universal Disk Format + User Defined Functions
|
| UDG | User Defined Gateway
|
| UDMA | Ultra Direct Memory Access
|
| UDP | User Datagram Protocol
|
| UDT | Uniform Data Transfer + User-Defined Type
|
| UFS | Universal\Unix File System
|
| UG | User Group
|
| UHCI | Universal Host Controller Interface
|
| UHF | Ultra-High Frequency
|
| UHL | Universal Hypertext Link
|
| UI | Unix International + User Interface
|
| UIC | User Identification Code
|
| UID | User Identifier
|
| UIMS | User Interface Management System
|
| UL | Underwriters Laboratories +
Unordered List + Upload
|
| ULA | Uncommitted Logic Array
|
| ULN | Universal Link Negotiation
|
| ULSI | Ultra Large Scale Integration
|
| UMA | Unified Memory Architecture
|
| UMB | Upper Memory Block [LIM/AST]
|
| UML | Unified Modeling Language
|
| UMS | User Mode Scheduler
|
| UMTS | Universal Mobile Telecommunications System
|
| UNC | Universal Naming Convention +
Uuencoded Netnews Collator [Unix]
|
| UNCOL | Universal Computed Oriented Language
|
| UNEP | Unbundled Network Platform
|
| UNI | User-Network Interface
|
| Unicode | The Unicode character set is a superset of the ASCII character set with provisions made for handling international symbols and characters from other languages. Unicode is sixteen bit, so takes up roughly twice the space as simple ASCII, but is correspondingly more flexible. |
| UNICOM | Universal Integrated Communication (System)
|
| UNICOS | Universal Compiler FORTRAN compatible
|
| UNII | Unlicensed National Information Infrastructure
|
| UNIVAC | Universal Automatic Computer
|
| UNIX | (AT&T Bell Laboratories Operating System)
|
| UNMA | Unified Network Management Architecture
|
| UNSPSC | Universal Standard Products and Services Classification
|
| UP | Uniprocessor
|
| UPC | Universal Product/Program Code + User Parameter Control
|
| UPG | Upgrade
|
| UPL | User Program Language
|
| upload | To upload a file is to copy it from your computer to a remote computer. The opposite is download. |
| UPM | Unix Programmer's Manual +
User Profile Management [IBM]
|
| UPNP | Universal Plug and Play
|
| Upper Memory Area | On IBM PCand compatible computers. The 384K area of address space adjacent to the640K of conventionalmemory (these two total 1 Megabyte). This area is usually reserved forrunning your system's hardware, such as your monitor, and is not considered partof total memory because applications cannot store information in this area. In386 enhanced mode, Windowscan access unused portions of this area. Some memory managers also allowapplications access to unused portions of this area. |
| Upper Memory Blocks | On IBM PCand compatible computers. Areas of the upper memory area that containgeneral-purpose memory and that can be used to hold devicedrivers or other memory-resident programs in order to leave more conventionalmemory available for applications. |
| UPS | Uninterruptible Power Supply/System
|
| URC | Uniform Resource Characteristics +
Uniform Resource Citation
|
| UREP | Unix RSCS Emulation Protocol (protocol)
|
| URI | Uniform Resource Identifier
|
| URL | Uniform Resource Locator
|
| URN | Uniform Resource Name/Number
|
| US | Unit Separator
|
| USART | Universal Synchronous-Asynchronous Receiver/Transmitter
|
| USB | Universal Serial Bus [Intel]
|
| USENET | User's Network [Internet]
|
| user | The operator of a computer. |
| User Interface | The aspect of acomputer or program that is visible to the user, giving and acceptinginformation from him or her. User interfaces are, broadly, CLIsand GUIs. |
| USERID | User Identification
|
| USOC | Universal Service Ordering Code
|
| USQ | Unsqueezed (files)
|
| USR | US Robotics (corporation)
|
| USRT | Universal Synchronous Receiver/Transmitter
|
| USSA | User Supported Software Association (United Kingdom)
|
| UT | User Terminal
|
| UTC | Coordinated Universal Time
|
| UTF | Unicode Transformation Format
|
| UTI | Universal Text Interchange/Interface
|
| Utility | A program intended to make the use of a computer orof an application program easier. |
| UTP | Unshielded Twisted-Pair (cable)
|
| UU | Uuencode/Uudecode
|
| uucode | The point of uucode is to allow 8-bit binary data to be transferred through the more common 7-bit ASCII channels (most especially e-mail). The facilities for dealing with uucoded files exist for many different machine types, and the most common programs are called "uuencode" for encoding the original binary file into a 7-bit file and "uudecode" for restoring the original binary file from the encoded one. Sometimes different uuencode and uudecode programs will work in subtly different manners causing annoying compatibility problems. Bcode was invented to provide the same service as uucode but to maintain a tighter standard. |
| UUCP | Unix-To-Unix Copy Protocol
|
| UUD | UUDecoding [Unix]
|
| UUDECODE | Unix-To-Unix Decoding
|
| UUE | UUEncoding [Unix]
|
| UUENCODE | Unix-To-Unix Encoding
|
| UUencode/UUdecode | A system for encoding binaryfiles as asciifiles for easy transfer between computer systems. Widely used on Unixsystems. |
| UUI | User-To-User Information [AT&T]
|
| UUID | Universal Unique Identifier
|
| UV | Ultraviolet
|
| UWR | Ultra Wideband Radio
|
| UXGA | Ultra Extended Graphics Array
|
