Technology terms starting with U

395 terms

  1. U Abbreviation for uracil.
  2. U interface For basic-rate access in an Integrated Services Digital Network (ISDN) environment, a user-to-network interface reference point that is characterized by…
  3. U reference point The conceptual reference point at the network side of the network termination 1 (NT1) in a particular ISDN access arrangement. [T1.615-1992] [T1.105-1988]
  4. U&S Unified and Specified [commands] (pre-1996 term).
  5. U. S. (US) United States.
  6. U.K (UK) United Kingdom.
  7. U.S. National Map Accuracy Standards (USNMAS) Accuracy standards for published maps in English units defining measurements for horizontal and vertical accuracy.
  8. U.S. West U.S. West Incorporated.
  9. U.S.S.R. Union of Soviet Socialist Republics.
  10. UA User Assessment (NMD BMC3 term).
  11. UAC A security feature that helps prevent unauthorized changes to a computer, by asking user for permission or administrator credentials before performing…
  12. UAC access token An access token with the least administrative privileges required for the session.
  13. UAC user A user account in the Users group that has a full privilege access token. The standard user is not an administrator and is not a member of any local…
  14. UAE United Arab Emirates.
  15. UAV Unmanned Aerial Vehicle.
  16. UAV BPI Unmanned Aerial Vehicle-based Boost Phase Intercept.
  17. ubiquitous computing See pervasive computing.
  18. UBM (Unified Buffer Manager) The component of the Notes Storage Facility that caches information about open applications .
  19. UCAP UAV Combat Air Patrol.
  20. UCB (Unit Control Block) a control block in storage that describes the characteristics of a particular I/O device on the operating system.
  21. UCC Uniform Commercial Code (US legal term).
  22. UCP (Unit Control Position): The WSR-88D radar operator uses this to control the entire radar system.
  23. UD/ASD United Defense/Armaments Systems Division.
  24. UDDI (Universal Description Discovery and Integration) Universal Description Discovery and Integration is a standard to use Web Services across various systems, including .NET and J2EE-based solutions.
  25. UDMH Unsymmetrical Dimethylhydrazine (a liquid propellant rocket fuel).
  26. UDP User Datagram Protocol, the typical way to send datagrams over the Internet.
  27. UDP (User Datagram Protocol) A connectionless protocol within TCP/IP that corresponds to the transport layer in the International Standard Organization's Open System Interconnect…
  28. UDS Universal Documentation System. A standardized comprehensive tool for stating and coordinating program requirements for testing MRTFB ranges, as well as…
  29. UE Unit Equipment.
  30. UEME Unified Electro-Magnetic Effects.
  31. UEWR Upgrade Early Warning Radar.
  32. UEWRS Upgraded Early Warning Radar System.
  33. UF 4 Uranium tetra fluoride.
  34. UF 6 Uranium hexafluoride. 310
  35. UF4 Uranium tetrafluoride.
  36. UF6 Uranium hexafluoride.
  37. UFG User Focus Group.
  38. UFO UHF Follow-On [Satellite Communications System].
  39. UFP Unit Flyaway Price.
  40. UGF Underground Facility.
  41. UGS Unattended Ground Sensors.
  42. UGT Under Ground Test.
  43. UHF Ultra High Frequency.
  44. UI User interface. Refers to the controls, buttons and on-screen elements by which the player interacts with the game world.
  45. UI Privilege Isolation A window manager subsystem that blocks applications at a lower UI privilege level from sending messages to or hooking threads belonging to processes with…
  46. UI privilege level The integrity level that is stored in the access token of a process and that is used by the UI Privilege Isolation (UIPI) feature to determine if an…
  47. UIA The accessibility model for Microsoft Windows that programmatically gathers information about an application's User Interface (UI) elements and exposes it…
  48. UIAutomation The accessibility model for Microsoft Windows that programmatically gathers information about an application's User Interface (UI) elements and exposes it…
  49. UIC Unit Identification Code.
  50. UID A user ID. Often used in the context of "file" or "process" ownership.
  51. UIMA (Unstructured Information Management Architecture) An IBM® architecture that defines a framework for implementing systems for the analysis of unstructured data.
  52. UIN User Interaction Node.
  53. UIPI A window manager subsystem that blocks applications at a lower UI privilege level from sending messages to or hooking threads belonging to processes with…
  54. UKAS (1) UK Architecture Study (2) UK Associate Studies.
  55. UKEADTB UK Extended Air Defense Test Bed.
  56. UKTB United Kingdom Test Bed.
  57. ULCS Unit Level Circuit Switch (SINCGARS term).
  58. ULF Abbreviation for ultra low frequency. See electromagnetic spectrum.
  59. ULS Unit Level Switch.
  60. ULSA Ultra Low Sidebobe Antenna.
  61. ULTDS Unit Level Tactical Data Switch (SINCGARS term).
  62. Ultra High Frequency (UHF) Those radio frequencies exceeding 300 MHz
  63. ultra low frequency (ULF) Frequencies from 300 Hz to 3000 Hz. See electromagnetic spectrum.
  64. Ultraviolet (UV) Electromagnetic radiation of wavelength between the shortest visible violet (about 3,850 Angstroms) and soft x-rays (about 100 Angstroms).
  65. ultrawideband See UWB.
  66. UM access telephone number A telephone number that points to a hunt group and is the access number for calls that are routed to Unified Messaging servers.
  67. umask A mask of those "permission bits" that should be forced off when creating files or directories, in order to establish a policy of whom you'll ordinarily…
  68. UMD Unit Manning Document.
  69. UMMIPS Uniform Material Movement and Issue Priority System (ILS term).
  70. UMTS (Universal Mobile Telecommunications Service) Developed by Nortel Networks, Universal Mobile Telecommunications Service (UMTS) is a standard that will provide cellular users a consistent set of…
  71. UN United Nations.
  72. UNAAF Unified Action Armed Forces.
  73. unallowable character Synonym illegal character.
  74. unary operator An operator taking a single operand. Java's unary operators are -, +, !, !, ++ and --.
  75. unassigned cell A cell identified by a standardized virtual path identifier (VPI) and virtual channel identifier (VCI) value, which has been generated and does not carry…
  76. unattend.xml A file that automates Windows Setup. This file enables the configuration of Windows settings, the addition and removal of components, and many Windows…
  77. Unauthorized Access A person gains logical or physical access without permission to a network, system, application, data, or other resource.
  78. Unauthorized Disclosure An event involving the exposure of information to entities not authorized access to the information.
  79. unavailability A expression of the degree to which a system, subsystem, or equipment is not operable and not in a committable state at the start of a mission, when the…
  80. unbalanced line A transmission line, such as a coaxial cable, in which the magnitudes of the voltages on the two conductors are not equal with respect to ground.
  81. unbalanced modulator A modulator in which the modulation factor is different for the alternate half-cycles of the carrier. Synonym asymmetrical modulator.
  82. unbalanced wire circuit A circuit in which the two sides are inherently electrically dissimilar.
  83. unbound mode Synonym radiation mode.
  84. unbounded The number of potential occurrences is not limited by a set number. This value is often used when defining a data type that is a list (for example…
  85. unbounded repetition Repetition where the statements within a loop's body are performed an arbitrary number of times, according to the effects of the statements within the…
  86. unbundling In the context of the FCC's Computer III Inquiry, the process of separating individual tariffed offerings and services that are associated with a specific…
  87. UNC United Nations Command.
  88. unchecked exception An exception for which it is not required to provide a local try statement, or to propagate via a throws clause defined in the method header.
  89. unclassified Information that has not been determined pursuant to Executive Order (E.O.) 12958 or any predecessor order to require protection against unauthorized…
  90. Unconditioned space Any space that is not meant to be heated.
  91. Unconventional Warfare A broad spectrum of military and paramilitary operations conducted in enemyheld , enemy-controlled or politically sensitive territory.
  92. Uncooperative User An individual who actively tries to deny the capture of his/her biometric data.
  93. Underflow The movement of groundwater through the soil or a subsurface stratum, or under a structure; specifically, the water flowing beneath the bed of a stream…
  94. underground cable A communication cable designed to be placed under the surface of the Earth in a duct system that isolates it from direct contact with the soil.
  95. underground plant Cable and wire plant, together with closures appropriate for the application, that is placed below ground in structures such as conduit or ducts. [T1.
  96. underlap In facsimile, a defect that occurs when the width of the scanning line is less than the scanning pitch.
  97. undershoot An arc that does not extend far enough to intersect another arc. See also dangling arc.
  98. undesired signal Any signal that tends to produce degradation in the operation of equipment or systems.
  99. undetected error rate Deprecated synonym for undetected error ratio.
  100. undetected error ratio The ratio of the number of bits, unit elements, characters, or blocks incorrectly received and undetected, to the total number of bits, unit elements…