Technology terms starting with D

1,369 terms

  1. Database integrator (DBI) ARC/INFO software's link to relational database management systems (RDBMS). DBI enables ARC/INFO users to access existing commercial databases and take…
  2. Database layer An architectural layer of Active Directory that isolates the upper layers of the directory service from the underlying database system by exposing…
  3. database library See application library.
  4. database lock Locking is a mechanism by which database systems can prevent conflicting access to data when multiple users are making requests to the data.
  5. database management system (DBMS) A software system used to access and retrieve data stored in a database.
  6. database manager See application manager.
  7. database name The name of a database hosted in a DB instance. A DB instance can host multiple databases, but databases hosted by the same DB instance must each have a…
  8. database replica See replica.
  9. database replication A software-based logical data replication scheme that is offered by most database vendors.
  10. Database-driven As in "database-driven web site." Means that the website is connected to a database and web page content is based in part on information extracted from…
  11. Database-generated As in "database-generated web page." Means that a web page is created dynamically 'on-the-fly' from a database, in contrast with a static HTML page.
  12. DataFabric A suite of products that allow for the clean separation of the data and the service and application layers by enabling IT staff to create a storage…
  13. datagram A packet of information passed between two communicating processes across a network.
  14. Datalink (1) The means of connecting one location to another for the purpose of transmitting and receiving data.
  15. DataTypeProperty Relationship between instance of classes and literal values such as string, number, and date.
  16. date An instant in the passage of time, identified with desired precision by a clock and a calendar.
  17. Date range A search engine may provide an option to search for documents modified on a specific date, before a date, after a date, or between two dates.
  18. date-time group (DTG) In a message, a set of characters, usually in a prescribed format, used to express the day of the month, the hour of the day, the minute of the hour, the…
  19. dating format The format used to express the time of an event. Note: The time of an event on the UTC time scale is given in the following sequence: hour, day, month…
  20. datum Any level surface taken as a plane of reference from which to measure elevations.
  21. DAU Defense Acquisition University, Ft. Belvoir, VA.
  22. Daughter Window An ad that runs in a separate window associated with a concurrently displayed banner.
  23. DAV See definition for: Distributed Authoring and Versioning
  24. DAV (Distributed Authoring and Versioning) (aka HTTP-DAV and Web-DAV) An extension to the Hypertext Transfer Protocol 1.1 (HTTP/1.1) that allows for the manipulation (reading and writing) of objects and attributes on a Web…
  25. DAVID Development of Advanced Very long wavelength Infrared Detector (USAF Phillips Lab term).
  26. DAWS Defense Automated Warning System.
  27. Dayparting Turning ad campaigns on or off, changing ad bid price, or budget constraints based on bidding more when your target audience is available and less when…
  28. Dazzling The temporary blinding of a sensor by overloading it with an intense signal of electromagnetic radiation (e.g., from a laser or a nuclear explosion).
  29. DB Bata Base
  30. DB compute class Size of the database compute platform used to run the instance.
  31. DB instance An isolated database environment running in the cloud. A DB instance can contain multiple user-created databases.
  32. DB instance identifier User-supplied identifier for the DB instance. The identifier must be unique for that user in an AWS region.
  33. DB parameter group A container for database engine parameter values that apply to one or more DB instances.
  34. DB security group A method that controls access to the DB instance. By default, network access is turned off to DB instances.
  35. DB snapshot A user-initiated point backup of a DB instance.
  36. dBµ Abbreviation. dB referenced to 1 microvolt. Used for receiver sensitivity measurement.
  37. dBa Abbreviation for decibels adjusted. Weighted absolute noise power, calculated in dB referenced to 3.16 picowatts (-85 dBm), which is 0 dBa.
  38. dBa(F1A) Weighted absolute noise power in dBa, measured by a noise measuring set with F1A-line weighting.
  39. dBa(HA1) Weighted noise power in dBa, measured across the receiver of a 302-type or similar subscriber set, by a noise measuring set with HA1-receiver weighting.
  40. dBa0 Noise power in dBa referenced to or measured at zero transmission level point (0TLP), also called a point of zero relative transmission level (0 dBr).
  41. dBc Abbreviation. dB relative to the carrier power.
  42. dBi Abbreviation. In the expression of antenna gain, the number of decibels of gain of an antenna referenced to the zero dB gain of a free-space isotropic…
  43. DBID (database ID) The time stamp that is located in the database header and that indicates when a database was first created or when the Fixup task last ran on it.
  44. DBIID (database instance ID) A value that is located in the database header and that associates the database with specific entries in the transaction log.
  45. DBM Stands for "Data Base Management" routines, a set of routines that emulate an "associative array" using disk files.
  46. dBm(psoph) Noise power in dBm, measured with psophometric weighting where where pWp is power in picowatts psophometrically weighted and dBa is the weighted noise…
  47. dBm0 Power in dBm referred to or measured at a zero transmission level point (0TLP).
  48. dBm0p Noise power in dBm0, measured by a psophometer or noise measuring set having psophometric weighting.
  49. DBME Database Management Environment (Computer term).
  50. DBMS Database Management System.
  51. DBMS (database management system) Software that controls the storage, modification, and retrieval of data stored in a database
  52. dBmV Abbreviation. dB referenced to one millivolt across 75 ohms. Note: This reference is not equivalent to dBm; it is, in fact, 1.33 × 10-5 milliwatts.
  53. DBN Disk Block Number. A number that identifies a block of data on a disk.
  54. DBOF Defense Business Operations Fund.
  55. dBr Abbreviation. The power ratio, expressed in dB, between any point and a reference point selected as the zero relative transmission level point.
  56. dBrn Abbreviation. dB above reference noise. Note 1: Weighted noise power in dB is referred to 1.0 picowatt. Thus, 0dBrn = -90 dBm.
  57. dBrn adjusted Synonym dBa.
  58. dBrn(144-line) Weighted noise power in dBrn, measured by a noise measuring set with 144-line weighting.
  59. dBrn(f1-f2) Flat noise power in dBrn, measured over the frequency band between frequencies f1 and f2.
  60. dBrnC Weighted noise power in dBrn, measured by a noise measuring set with C-message weighting.
  61. dBrnC0 Noise power in dBrnC referred to or measured at a zero transmission level point (0TLP).
  62. DBS Direct Broadcast Satellite. 73
  63. DBSM Database System Management.
  64. dBu Abbreviation. dB in reference to 1 mW at 600 ohms, equal to 0.775 V, mainly used in audio systems (e.g.
  65. dBv Abbreviation. dB relative to 1 volt peak-to-peak. Note: The dBv is usually used for television video signal level measurements. [From Weik '89]
  66. dBW Abbreviation. dB referenced to one watt.
  67. dBx Abbreviation. dB above reference coupling. Note: dBx is used to express the amount of crosstalk coupling in telephone circuits.
  68. DC See Direct current
  69. DC GIS Refers to all the hardware, software, and databases that provide the central GIS functionality for the District of Columbia government.
  70. dc patch bay A patch bay in which dc circuits are grouped.
  71. DC-X Delta Clipper Experiment.
  72. DCA (1) Defensive Counter Air. (2) OBSOLETE. Defense Communications Agency. (Now known as Defense Information Systems Agency (DISA)).
  73. DCAA Defense Contract Audit Agency.
  74. DCAS Defense Contract Administrative Services.
  75. DCCO Defense Commercial Communications Office (of DISA).
  76. DCDS Distributed Computer Design/Development System.
  77. DCE (1) Data Communications Equipment ( TelComm /Computer term). (2) Distributed Computer Environment.
  78. DCE clear signal A call control signal transmitted by data circuit-terminating equipment (DCE) to indicate that it is clearing the associated circuit after a call is…
  79. DCE waiting signal A call control signal at the data-circuit-terminating-equipment/data-terminal-equipment (DCE/DTE) interface that indicates that the DCE is ready for…
  80. DCEC Defense Communications Electronics Command.
  81. DCI (1) Director of Central Intelligence. (2) Dual Channel Interchange.
  82. DCINC Deputy Commander-in-Chief.
  83. DCM Defensive Counter Measures.
  84. DCMC Defense Contract Management Command
  85. DCN Document Change Notice.
  86. DCO Director of Combat Operations (JFACC term).
  87. DCOM Abbreviation for distributed component object model. A model for developing objects in a language-independent format so that those objects can be…
  88. DCP (Data Collection Platform) In hydrologic terms, an electronic device that connects to a river or rainfall gage that records data from the gage and at…
  89. DCPG Digital Clock Pulse Generator.
  90. DCR (Data Connection Resource) A design element you can use to define a connection between a Notes form and an enterprise database for exchanging data.
  91. DCS Deputy Chief of Staff.
  92. DCSOPS Deputy Chief of Staff for Operations and Plans (Army).
  93. DCT Digital Communications Terminal
  94. DCTN Defense Commercial Telecommunications Network.
  95. DD Direct Damage. This is a spell that does all of its damage in one hit rather than spreading its damage over time.
  96. DDCI Deputy Director of Central Intelligence.
  97. DDD Abbreviation for direct distance dialing.
  98. DDDR&E Deputy Director, Defense Research and Engineering.
  99. DDE (Dynamic Data Exchange) DDE is a method for displaying data created with other Windows and Presentation Manager applications, such as graphics or spreadsheet ranges, within Notes…
  100. DDEL Dwight David Eisenhower Library, Abilene, KN (army term).