Technology — page 147 of 206

20,531 terms including subtopics (0 terms filed directly here)

Technology terms

  1. PureTLS http://www.rtfm.com/puretls/
  2. Purge To remove information that has no further value from a file, usually according to a records retention schedule
  3. purging Rendering stored information unrecoverable by laboratory attack. [INFOSEC-99]
  4. Push Refers to the player and the dealer having the same total. Usually the player's bet is returned when there is a push.
  5. push-down file See last-in first-out.
  6. push-to-talk (PTT) operation In telephone or two-way radio systems, that method of communication over a speech circuit in which the talker is required to keep a switch operated while…
  7. push-to-type operation In telegraph or data transmission systems, that method of communication in which the operator at a station must keep a switch operated in order to send…
  8. pushbutton dialing Dialing in which (a) pushbuttons or keys are used to actuate and connect audible tone oscillators to a line, (b) each button or key corresponds to a…
  9. pushbutton failover Use of the cmrecovercl command to allow all package recovery groups to start up on the Recovery Cluster following a significant cluster event on the…
  10. PV A "pointer value", which is Perl Internals Talk for a char*.
  11. PV HCT Photovoltaic Mercury Cadmium Telluride.
  12. PV links A method of LVM configuration that allows you to provide redundant disk interfaces and buses to disk arrays, thereby protecting against single points of…
  13. PVB Project Validation Board (MILCON term).
  14. PVC Permanent virtual circuit. A network connection with a static route defined in advance, usually by manual setup.
  15. PVO (PVO Strany ) Russian organization formerly responsible for the air and space defense of their homeland.
  16. PVOL (Primary Volume) A primary volume configured in an XP series disk array that uses Continuous Access.
  17. PVT Payload Verification Test.
  18. pW Precipitable Water - measure of the depth of liquid water at the surface that would result after precipitating all of the water vapor in a vertical column…
  19. PWBS Program Work Breakdown Structure.
  20. PWG Product Working Group.
  21. PWM Abbreviation for pulse-width modulation, which is a deprecated synonym for pulse-duration modulation.
  22. PWP Abbreviation for permanent wilting point.
  23. pWp0 Abbreviation for picowatts, psophometrically weighted, measured at a zero-dBm transmission level point. See dBm(psoph), psophometer.
  24. PWR Pressurized Water Reactor.
  25. pX Abbreviation for peak envelope power (of a radio transmitter).
  26. PY Prior Year.
  27. Pyrotechnic A mixture of chemicals which, when ignited, is capable of reacting exothermically to produce light, heat, smoke, sound, or gas, and may be also used to…
  28. Q Denotes the longer of the two chromosome arms, e.g. human 10q is the long arm of human chromosome 10.
  29. Q&R Qualification and Reliability.
  30. Q/FY (number) Quarter/Fiscal Year (number), e.g., 4Q/FY98
  31. QA Quality Assurance.
  32. QAE Quality Assurance Evaluator.
  33. QAM Abbreviation for quadrature amplitude modulation.
  34. QAMSP Quality Assurance Master Surveillance Plan.
  35. QAS (Quick Arbitration Select) An Ultra320 SCSI feature that improves the control release between SCSI devices, reducing command overhead.
  36. QC Quality Control.
  37. QCIF Abbreviation for quarter common intermediate format.
  38. QDR Quadrennial Defense Review (US Congress/ DoD term).
  39. QFR Question for Record.
  40. QIP Quality Improvement Prototype.
  41. QLD Quick Look Display.
  42. QM (1) Queen Match. (2) Quartermaster.
  43. QM/DX Queen Match/Discrimination Experiment.
  44. QMB Quality Management Board.
  45. QOS Quality of Service. The performance level defined for a data communications system.
  46. QoS (Quality of Service) A term used in a Service Level Agreement (SLA) denoting a guaranteed level of performance (e.g., response times less than 1 second).
  47. QPP Quality Program Plan.
  48. QPR Quality Program Review.
  49. QPSK Abbreviation for quadrature phase-shift keying.
  50. QPSR Quarterly Program Status Review.
  51. QQPRI Qualitative and Quantitative Personnel Requirements Information.
  52. QRA (1) Quartz Resonant Accelerometer (2) Quick Reaction Alert. (3) Quick Reaction Aircraft (US).
  53. QRC Quick Reaction Capability.
  54. QRG Quick Reference Guide.
  55. QRM Quick Response Missile.
  56. QRP Quick Response Program (PATRIOT).
  57. QRP Radar Quick Response Program Radar.
  58. QRS (1) Quartz Resonant Sensor. (2) Quick Reaction Software.
  59. QRSS Abbreviation for quasi-random signal source.
  60. QRTS Abbreviation for quasi-random test signal.
  61. QRW Abbreviation for quasi-random word.
  62. QSR Quadrennial Strategy Review.
  63. qtree A special subdirectory in a volume that acts as a virtual subvolume with special attributes, primarily quotas and permissions.
  64. Qtrly Quarterly.
  65. Quad One quadrillion Btu. (1,000,000,000,000,000 Btu)
  66. Quad-D/ADI Quad-D/Advanced Discriminating Interceptor. 239
  67. quadded cable A cable formed of multiples of quads, paired and separately insulated, and contained under a common jacket.
  68. quadrangle (quad) See topographic map.
  69. QUADRANT The District of Columbia is divided into four quadrants: Northwest, Northeast, Southwest and Southeast.
  70. quadratic profile Synonym parabolic profile.
  71. Quadrature The component of the complex signal that is 90 degrees out of phase with the inphase component.
  72. quadrature amplitude modulation (QAM) Quadrature modulation in which the two carriers are amplitude modulated. 2. In analog communications, the representation (i.e.
  73. quadrature modulation Modulation using two carriers out of phase by 90° and modulated by separate signals.
  74. quadrature phase-shift keying (QPSK) Phase-shift keying in which four different phase angles are used. Note: In QPSK, the four angles are usually out of phase by 90°.
  75. quadriphase Synonym quadrature phase-shift keying.
  76. quadruple diversity In radio communication, diversity transmission and reception in which four independently fading signals are used.
  77. quadruply clad fiber A single-mode optical fiber that has four claddings. Note 1: Each cladding has a refractive index lower than that of the core.
  78. quadtree A spatial index which recursively decomposes a data set (e.g., image) into square cells of different sizes until each cell has a homogeneous value.
  79. Qualification Test This test simulates defined environmental conditions with a predetermined safety factor, the results indicating whether a given design can perform its…
  80. qualified Possessing a complete name. The symbol $Ent::moot is qualified; $moot is unqualified. A fully qualified filename is specified from the top-level directory.
  81. Quality The degree to which a health or social service meets or exceeds established professional standards and user expectations.
  82. Quality Assurance (QA) (QA) The process of identifying problems in service delivery, designing activities to overcome these problems, and following up to ensure that no new problems…
  83. Quality Content Content which is linkworthy in nature. See also: What is Quality Content? When Unique Content is Not "Unique"
  84. quality control (QC) A management function whereby control of the quality of (a) raw materials, assemblies, produced materiel, and components, (b) services related to…
  85. quality factor In a reactive circuit, the ratio of the reactance in ohms divided by the resistance in ohms.
  86. Quality Link Search engines count links votes of trust. Quality links count more than low quality links.
  87. Quality of Service (QoS) The performance level defined for a data communications system.
  88. quantifier A component of a "regular expression" specifying how many times the foregoing "atom" may occur.
  89. Quantization A process in which a continuous signal is converted to a series of points at discrete levels.
  90. quantization error Synonym quantizing distortion.
  91. quantization level In the quantization process, the discrete value assigned to a particular subrange of the analog signal being quantized.
  92. quantization noise Synonym quantizing noise.
  93. quantized feedback In a digital feedback loop, the digital signal that is fed back. Note 1: Several forms of analog-to-digital converters contain a quantized feedback loop…
  94. quantizing distortion Distortion that results from the quantization process. Synonym quantization error.
  95. quantizing levels In digital transmission, the number of discrete signal levels transmitted as the result of signal digitization.
  96. quantizing noise Noise caused by the error of approximation in quantization. Note: Quantizing noise is dependent on the particular quantization process used and the…
  97. quantum See timeslice.
  98. quantum efficiency In an optical source or detector, the ratio of the number of output quanta to the number of input quanta.
  99. quantum noise Noise attributable to the discrete and probabilistic nature of physical phenomena and their interactions.
  100. quantum-limited operation Synonym quantum-noise-limited operation.

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