Technology terms starting with E

895 terms

  1. ERCS Emergency Rocket Communications System (US).
  2. ERD Element Requirements Document.
  3. erect position In frequency-division multiplexing, a position of a translated channel in which an increase signal frequency in the untranslated channel causes an…
  4. ERG A unit of work done by the force of one dyne acting through a distance of one centimeter.
  5. ERINT OBSOLETE. Extended Range Interceptor. Now referred to as PAC-3.
  6. ERIS OBSOLETE. Exoatmospheric Reentry Vehicle Interceptor Subsystem. (Predecessor to Ground-Based Interceptor (GBI).)
  7. ERIS(F) OBSOLETE. ERIS Farm.
  8. erlang A dimensionless unit of the average traffic intensity (occupancy) of a facility during a period of time, usually a busy hour.
  9. ERM See electronic records management (ERM) and enterprise report management (ERM).
  10. ERM (electronic records management) The application of records management principles to electronic records The management of records using electronic systems to apply records management…
  11. ERM (enterprise report management) A system that transforms reports into documents and data that can be searched, accessed, and leveraged in business processes Also referred to as…
  12. ERP Emitted Radiative Power.
  13. ERR (1) Element Requirements Review. (2) Engineering Release Record.
  14. errno The error number returned by a "syscall" when it fails. Perl refers to the error by the name $! (or $OS_ERROR if you use the English module).
  15. erroneous block A block in which there are one or more erroneous bits.
  16. error Error The difference between a measured value of a quantity and its true value. Different types of errors are inherent to observations.
  17. error blocks In video, a form of block distortion where one or more blocks in the image bear no resemblance to the current or previous scene and often contrast greatly…
  18. error budget The bit-error-ratio requirement allocated to the respective segments of a communications system, such as trunking, switching, access, and terminal…
  19. error burst A contiguous sequence of symbols, received over a data transmission channel, such that the first and last symbols are in error and there exists no…
  20. Error Code Lookup A tool that can help to determine error values from decimal and hexadecimal error codes in Microsoft Windows operating systems.
  21. error concealment In the receipt and processing of digitized television transmissions, a method of covering up errors from dropouts by using the redundancy in most…
  22. error control Any technique that will detect or correct errors.
  23. error correction In the reception or processing of digital data, the use of overhead bits and appropriate algorithms to detect, and within certain constraints, restore a…
  24. Error Detection Code A code computed from data and comprised of redundant bits of information designed to detect, but not correct, unintentional changes in the data.
  25. error message In a computer or communications system, a message that indicates that an error has been made and, sometimes, the nature or type of error. [From Weik '89]
  26. Error page A web page stating an error message such as "File Not Found"
  27. Error Rate the frequency at which one deviates or strays from a correct standard.
  28. error ratio The ratio of the number of bits, elements, characters, or blocks incorrectly received to the total number of bits, elements, characters, or blocks sent…
  29. error signal In computer and communications systems, an audio or visual signal that indicates that an error has been made by the system or its operator.
  30. error-correcting code A code in which each telegraph or data signal conforms to specific rules of construction so that departures from this construction in the received signal…
  31. Error-Correcting Code (ECC) Memory A type of memory that includes special circuitry for testing the accuracy of data as it passes in and out of memory.
  32. error-correcting system In digital data transmission, a system employing either forward error correction (FEC) or automatic repeat-request (ARQ) techniques such that most…
  33. error-detecting code A code in which each telegraph or data signal conforms to specific rules of construction, so that departures from this construction in the received signal…
  34. error-detecting system A system employing an error-detecting code and so arranged that any signal detected as being in error is either deleted from the data delivered to the…
  35. error-detecting-and-feedback system Synonym ARQ.
  36. error-free second (EFS) A 1-yysecond interval in which no errored blocks are received. Note: In general, measurement is over time and is stated as a percentage, i.e., % EFS. [T1.
  37. errored second (ES) A 1-yysecond period with one or more errored blocks. 2. A 1-second interval with one or more bit errors.
  38. errored unit of time A specified period of time, during which bits are transferred from a source to a destination, that contains at least one bit in error.
  39. ERS (1) Early Release of Submunitions . (2) Emergency Response System.
  40. ES Abbreviation for end system, expert system.
  41. ESA See Endangered Species Act of 1973
  42. ESAD Electronic Safe and Arm Device.
  43. ESAR Extended Subsequent Application Review.
  44. ESC Electronic System Center (AFMC), Hanscom AFB, MA.
  45. escape character A character that suppresses or selects a special meaning for one or more characters that follow.
  46. escape character (ESC) In alphabet coding schemes, a specially designated character, the occurrence of which in the data signifies that one or more of the characters to follow…
  47. escape code An indicator consisting of one or more digits which is defined in a given numbering plan and is used to indicate that the digits that follow are from a…
  48. escape sequence See "metasymbol".
  49. ESCN Existing Systems and Center Notebook.
  50. Escon Mainframe channel devised by IBM that supports data rates of 200 Mbit/s over fiber.
  51. ESCON (Enterprise Storage Connect) A type of fiber-optic channel used for inter-frame communication between EMC Symmetrix frames using EMC SRDF or between HP StorageWorks E XP series disk…
  52. ESCON (Enterprise Systems Connection) IBM's fiber-optic technology for connecting mainframes using IBM channels. ESCON architecture provides fast access to disk arrays and tape. See FICON.
  53. Escrow A financial instrument held by a third party on behalf of the other two parties in a transaction.
  54. ESD Examination Support Document -- see Guidelines for Examination Support Document (ESD) under § 1.265 [PDF]
  55. ESE See definition for: Extensible Storage Engine (ESE)
  56. ESE (Extensible Storage Engine) (fka JET) Formerly known as Joint Engine Technologies (JET), the ESE is a method that defines a very low-level Application Programming Interface (API) to the…
  57. ESF Abbreviation for extended superframe.
  58. ESH Environmental, Safety and Health
  59. ESI Electronically stored information.
  60. ESI ICD External Systems Integration Interface Control Document.
  61. ESM (1) Electronic Warfare Support Measures. (2) Electronic Support Measures.
  62. ESMC Eastern Space and Missile Center, Patrick AFB, FL.
  63. ESNet Energy Sciences Network.
  64. ESPRIT European Strategic Program of Research in Information Technology.
  65. ESQD Explosive Safety Quantity Distance.
  66. ESS Abbreviation for electronic switching system.
  67. essential characteristics Those properties/characteristics of electronic records that must remain unchanged through transfer, ingest, storage, and presentation or output of records.
  68. essential record any public record necessary to resumption or continuation of operations of state or local government, to re-creation of the legal and financial status of…
  69. essential records See vital records.
  70. essential service A network-provided service feature in which a priority dial tone is furnished. Note 1: Essential service is typically provided to fewer than 10 % of…
  71. ESSM Evolved (Enhanced) Sea Sparrow Missile.
  72. ET&C Extended Tracking and Control.
  73. ETA 1. The Eta Model, now referred to as North Amercian Meso (NAM) an 84-hour numerical model of the atmosphere run four times daily by NCEP.
  74. ETB Abbreviation for end-of-transmission-block character.
  75. ETC Emerging Technology Center
  76. ETD Enterprise Training Division
  77. ETERTS End-to-End Real Time Simulator.
  78. ETESD End-to-End Sensor Demonstration.
  79. Ethernet A common way of networking PCs to create a LAN.
  80. Ethical SEO Search engines like to paint SEO services which manipulate their relevancy algorithms as being unethical.
  81. ethical wall A zone of non-communication between distinct departments of a business or organization to prevent conflicts of interest that might result in the…
  82. ETI Estimated Time of Intercept.
  83. ETIC Estimated Time for Completion.
  84. ETL-type tools Extract, transform, and load (ETL) is a data-integration function that involves extracting data from outside sources, transforming it to fit business…
  85. ETM Engineering Test Model
  86. ETR (1) Extended Test Range (Pacific Test Bed) (2) See Eastern Test Range. (3) Environmental Test Round. (4) Estimated Time to Repair.
  87. ETS Smoke that comes from the burning of a tobacco product and smoke that is exhaled by smokers. Inhaling ETS is called involuntary or passive smoking.
  88. ETSI (European Telecommunications Standards Institute) The European Telecommunications Standards Institute (ETSI) is a non-profit organization that establishes telecommunications standards for Europe.
  89. ETX Abbreviation for end-of-text character.
  90. EU European Union
  91. EUCOM European Command. See USEUCOM.
  92. Eudora Popular email client by Qualcomm available for Windows and Macintosh. Its name was inspired by the short story "Why I live at the P.O." by Eudora Welty.
  93. EUDPD (European Union Data Protection Directive) This directive standardizes the protection of data privacy for citizens throughout the European Union (EU) by providing baseline requirements that all…
  94. EURATOM European Atomic Energy Agency.
  95. EUREKA European Research and Coordinating Agency.
  96. EUT Early User Test.
  97. EV Experimental Version
  98. EVA Extravehicular Activity.
  99. evaluation See appraisal.
  100. evaluation assurance level (EAL) One of seven increasingly rigorous packages of assurance requirements from CC (Common Criteria) Part 3.