Technology terms starting with B

783 terms

  1. B Abbreviation used on long-term climate outlooks issued by CPC to indicate areas that are likely to be below normal for a given parameter (temperature…
  2. B channel A communications channel used for the transmission of an aggregate signal generated by multichannel transmitting equipment. 2.
  3. b frame An MPEG video frame type that provides bidirectional interframe compression. Note: A b frame derives its content from the closest 1 or P frame, one in the…
  4. B Spec Development specification.
  5. B-ISDN Abbreviation for broadband ISDN.
  6. b/s Abbreviation for bits per second.
  7. B2B Business-to-business.
  8. B2C2 Brigade and Below Command and Control System (Army term).
  9. B3ZS Abbreviation for bipolar with three-zero substitution. A T-carrier line code in which bipolar violations are deliberately inserted if user data contain a…
  10. B6ZS Abbreviation for bipolar with six-zero substitution. A T-carrier line code in which bipolar violations are deliberately inserted if user data contain a…
  11. B8ZS Abbreviation for bipolar with eight-zero substitution. A T-carrier line code in which bipolar violations are deliberately inserted if user data contains a…
  12. B8ZS (Bipolar with 8-Zero Substitution) A code in which eight consecutive zeros are replaced with the sequence 000+-0-+ if the preceding pulse was + and with the sequence 000-+0+- of the…
  13. BA biological assessment.
  14. BAA Broad Agency Announcement.
  15. babble In transmission systems, the aggregate of crosstalk induced in a given line by all other lines.
  16. BAC Abbreviation for bacterial artificial chromosome.
  17. back door Synonym trapdoor.
  18. Back links Back links are inbound links pointing to a web page. See: Inbound Links Definition
  19. Back pressure A pressure that can cause water to backflow into the water supply when a user's water system is at a higher pressure than the public water system.
  20. back up To duplicate information primarily for protection in case the original is lost or destroyed See also security copy.
  21. back-to-back connection A direct connection between the output of a transmitting device and the input of an associated receiving device.
  22. backbone The bones, muscles, tendons, and other tissues that reach from the base of the skull to the tailbone.
  23. Backbone Network Consists of the space communications network, the ground communications network, and the interconnection between the two.
  24. backfile conversion process of changing legacy documents and records from one format, storage media, application, and/or system to another See also conversion, file…
  25. background In Web pages, an image or color, usually defined in HTML, that serves as the underlying color or imagery for a Web page.
  26. background noise The total system noise in the absence of information transmission.
  27. background processing The execution of lower priority computer programs when higher priority programs are not using the system resources.
  28. Background Rejection (Surveillance) The suppression of background noise for the improvement of an object signal.
  29. backhaul 1. The practice of routing telecommunications traffic beyond its intended destination, and then back to the intended destination, usually for the purpose…
  30. Backing Any type of line used to partially fill a reel before the main fishing line is added; commonly used in fly-fishing or by bass anglers who use many of the…
  31. backing bean A JavaBeans component that corresponds to a JSP page that includes JavaServer Faces components.
  32. backoff In Exchange Server 2007, a mechanism used to deliver messages at an interim hop along the least cost routing path when direct relay fails for any reason…
  33. backreference A substring captured by a subpattern within unadorned parentheses in a "regex". Backslashed decimal numbers (, , etc.
  34. backscattering Radio wave propagation in which the direction of the incident and scattered waves, resolved along a reference direction (usually horizontal) are…
  35. backtracking The practice of saying, "If I had to do it all over, I'd do it differently," and then actually going back and doing it all over differently.
  36. Backup To create a copy of data as a precaution against the loss or damage of the original data.
  37. Backup Domain Controller (BDC) In a Windows 2000 domain, backup domain controllers are not required; all domain controllers are peers, and all can perform maintenance on the directory.
  38. backup file A copy of a file made for purposes of later reconstruction of the file, if necessary.
  39. Backup/Restore A two step process. Information is first copied to non-volatile disk or tape media.
  40. backward channel In data transmission, a secondary channel in which the direction of transmission is constrained to be opposite to that of the primary, i.e.
  41. backward compatibility Means you can still run your old program because we didn't break any of the features or bugs it was relying on.
  42. backward indicator bit (BIB) A signal unit (or sequence of bits) that (by changing its status) is used to request retransmission by the remote end whenever it receives a signal unit…
  43. backward recovery The reconstruction of an earlier version of a file by using a newer version of data recorded in a journal.
  44. backward sequence number (BSN) A field in a signal unit that contains the forward sequence number of a correctly received signal unit being acknowledged in the signal unit that is being…
  45. backward signal A signal sent from the called to the calling station, i.e., from the original data sink to the original data source.
  46. backward supervision The use of supervisory signal sequences from a secondary to a primary station.
  47. Bacterium More than one bacteria.
  48. bad sectoring A technique for copy protection in which bad sectors are intentionally written on a diskette. [2382-pt.8]
  49. BadMail folder The BadMail folder contains messages that cannot be delivered to your organization, and also cannot be returned to the sender.
  50. BAE Battlefield Area Evaluation (USA term).
  51. BAFO Best and Final Offer.
  52. BAI Battlefield Air Interdiction.
  53. Bait and Switch The provision of one page for a search engine or directory and a different page for other user agents at the same URL. Various methods can be used, e.g.
  54. Balance We put each charge on your account, including interest or fees, into a balance category.
  55. balance return loss A measure of the degree of balance between two impedances connected to two conjugate sides of a hybrid set, coil, network, or junction. 2.
  56. balanced Pertaining to electrical symmetry.
  57. balanced code In PCM systems, a code constructed so that the frequency spectrum resulting from the transmission of any code word has no dc component. 2.
  58. balanced line A transmission line consisting of two conductors in the presence of ground, capable of being operated in such a way that when the voltages of the two…
  59. balanced modulator A modulator constructed so that the carrier is suppressed and any associated carrier noise is balanced out.
  60. balanced signal pair Synonym balanced line.
  61. Balanced Technology Initiative (BTI) DoDs program to hasten application of advanced technology to the most critical and urgent operational needs.
  62. balancing network 1. In a hybrid set, hybrid coil, or resistance hybrid, a circuit used to match, i.e., to balance, the impedance of a uniform transmission line, i.e.
  63. Ballistic Coefficient The weight of the object divided by the product of the coefficient of drag and the projected area (W/CDA), in kilograms per square meter.
  64. Ballistic Missile (BM) Any missile that does not rely upon aerodynamic surfaces to produce lift and consequently follows a ballistic trajectory when thrust is terminated.
  65. Ballistic Missile Boost Intercept (BAMBI) OBSOLETE. A 1966 system concept that a Lockheed study group developed in anticipation of possible government interest in the development of an ABM…
  66. Ballistic Missile Defense (BMD) All active and passive measures designed to detect, identify, track, and defeat attacking ballistic missiles (and entities), in both strategic and theater…
  67. Ballistic Missile Defense (BMD) Cell This facility will be located in the USSPACECOM Consolidated Command Center (CCC) and Space Control Center (SPACC) to support the Space Force Application…
  68. Ballistic Missile Defense (BMD) System (1) An integrated system that employs layered defenses to intercept missiles during their boost, midcourse, and terminal flight phases.
  69. Ballistic Missile Defense Battery An Army operations center, which operates and maintains BMD ground-based weapons and sensors. 28
  70. Ballistic Missile Defense Operations Center (BMDOC) OBSOLETE. Initially located at the NTF, and ultimately in the Cheyenne Mountain Complex, this facility supports the BMD Cell-USSPACECOM information…
  71. Ballistic Missile Defense Organization (BMDO) OBSOLETE. The former name of an agency of the Department of Defense whose mission is to manage and direct the conduct of a research program examining the…
  72. Ballistic Missile Defense Organization Cost Position (BCP) The official position of BMDO reflecting a rigorous cost estimate reconciliation between the service program office estimate and the BMDO independent cost…
  73. Ballistic Missile Defense Organization Independent Cost Assessment (BMDOICA) The result of the BMDO cost estimating procedure which identifies the cost of a program described in a CARD or CARD-like document.
  74. Ballistic Missile Defense Program An architecture comprising three objectives: Theater Missile Defense (TMD), National Missile Defense (NMD), and Follow-on Research Programs.
  75. Ballistic Missile Early Warning System (BMEWS) Provides tactical warning of ballistic missile attacks, and is part of Spacetrack system.
  76. Ballistic Trajectory The trajectory traced after the propulsive force is terminated and the body is acted upon only by gravity and aerodynamic drag.
  77. Ballistics branch of physics that deals with the flights of projectiles.
  78. Balloon A spherical inflatable decoy used as a penetration aid to mask the location of reentry vehicles.
  79. balun Abbreviation for balanced to unbalanced. In radio frequency usage, a device used to couple a balanced device or line to an unbalanced device or line.
  80. BAMBI OBSOLETE. See Ballistic Missile Boost Intercept.
  81. band One layer of a multispectral image representing data values for a specific range of the electromagnetic spectrum of reflected light or heat (e.g.
  82. band separate An image format that stores each band of data collected by multispectral satellite scanning instruments in a separate file.
  83. band-elimination filter Synonym band-stop filter.
  84. band-rejection filter Synonym band-stop filter.
  85. band-stop filter A filter that attenuates, usually to very low levels, all frequencies between two non-zero, finite limits and passes all frequencies not within the limits.
  86. band-suppression filter Synonym band-stop filter.
  87. BANDPASS FILTER A filter whose frequencies are between given upper and lower cutoff values, while substantially attenuating all frequencies outside these values (this…
  88. bandpass limiter A device that imposes hard limiting on a signal and contains a filter that suppresses the unwanted products (harmonics) of the limiting process.
  89. Bandwidth The amount of information or data that can be sent over a network connection in a given period of time.
  90. bandwidth (BW) 1. The difference between the limiting frequencies within which performance of a device, in respect to some characteristic, falls within specified limits.
  91. bandwidth (of an optical fiber) The lowest modulation frequency at which the RMS peak-to-valley amplitude (optical power) difference of an intensity-modulated monochromatic signal…
  92. bandwidth balancing mechanism In a distributed-queue dual-bus network, a procedure in which a node occasionally skips the use of empty queued arbitrated slots, and which procedure…
  93. bandwidth compression The reduction of the bandwidth needed to transmit a given amount of data in a given time. 2.
  94. Bandwidth Throttling In Snap EDR, the ability to limit the bandwidth used by replication to maintain bandwidth for business-critical applications.
  95. bandwidth•distance product Of an optical fiber, under specified launching and cabling conditions, at a specified wavelength, a figure of merit equal to the product of the fiber's…
  96. bandwidth•length product Synonym for bandwidth•distance product.
  97. bandwidth-limited operation The condition prevailing when the system bandwidth limits performance. Note: Bandwidth-limited operation occurs when the system distorts the signal…
  98. bang The exclamation point character (!) used in early addressing schemes to separate the names of individual machines.
  99. Banned When a search engine blocks your site from appearing in its search results.
  100. banner An HTML tag that creates scrolling text on a Web page. [Bahorsky] 2. Scrolling or fixed text used as an advertisement on a Web page, e.g.