carrier leakThe carrier remaining after carrier suppression in a suppressed carrier transmission system.
carrier levelThe level of a carrier signal at a specified point in a communications system. Note: The carrier level is usually expressed in dB relative to a specified…
carrier noise levelThe noise level resulting from undesired variations of a carrier in the absence of any intended modulation. Synonym residual modulation.
carrier power (of a radio transmitter)The average power supplied to the antenna transmission line by a transmitter during one radio frequency cycle taken under the condition of no modulation.
carrier selectionA code that identifies whether the caller dialed the elected or chosen carrier and whether the caller presubscribed to the elected or chosen carrier. [T1.
carrier senseIn a local area network, an ongoing activity of a data station to detect whether another station is transmitting.
carrier shiftIn the transmission of binary or teletypewriter signals, keying in which the carrier frequency is shifted in one direction for marking signals and in the…
carrier synchronizationIn a radio receiver, the generation of a reference carrier with a phase closely matching that of a received signal.
Carrier SystemA means of obtaining a number of channels over a single path by modulating each channel upon a different carrier frequency, and demodulating at the…
Carrier Vehicle (CV)A space platform whose principal function is to house the space-based interceptors in a protective environment prior to use.
carrier-to-noise ratio (CNR)In radio receivers, the ratio of the level of the carrier to that of the noise in the intermediate frequency (IF) band before any nonlinear process, such…
Carson bandwidth ruleA rule defining the approximate bandwidth requirements of communications system components for a carrier signal that is frequency modulated by a…
Cartesian Coordinate SystemA two-dimensional, planar coordinate system in which x measures horizontal distance and y measures vertical distance.
cartographic recordsProgram and information motion pictures, still pictures, sound recordings, video recordings, and related documentation.
cartridgeA single-spindled, and usually closed, holder that stores, facilitates access to, and allows the automatic threading and rewinding of a single roll of…
CAS(1) Close Air Support. (2) Computer-Aided Servicing. (3) Crisis Action System. (4) Cost Accounting Standard.
cascade1. A series of reply posts to a message on a bulletin board system. 2. An offset stack of (usually) active windows displayed on a computer screen. 3.
cascade deleteA deletion that triggers another deletion. A cascade delete can be specified for an entity bean that has container-managed persistence.
CascadingCascading is an open-source Java library that provides a query API, a query planner, and a job scheduler for creating and running Hadoop MapReduce…
cascading failoverCascading failover is the ability of an application to fail from a primary to a secondary location, and then to fail to a recovery location on a different…
cascading if-else statementA form of if-else statement in which each else-part (except the last) consists of a further nested if-else statement.
CASEThe last card of a certain rank in the deck. Example: "The flop came J-8-3; I've got pocket jacks, he's got pocket 8's, and then the case eight falls on…
case filethe hard copy case folder which contains all or part of the documentation forming the case record.
case labelThe value used to select a particular case in a switch statement.
case sensitiveA test that is sensitive to whether a character is upper-case (e.g., 'A') or lower-case (e.g., 'a').
Case sensitive/insensitive searchingSearch engines will most often normalize words to lower case. Some search applications, though, may want to use case sensitive search against specific…
case shiftIn data equipment, the change from letters to other characters, or vice versa. 2.
CASE technologyTechnology that makes use of computer assisted software engineering (CASE) to enhance the development of systems design and development.
CASOMConventionally Armed Stand Off Missile (USAF & UK RAF term).
Cassegrain antennaAn antenna in which the feed radiator is mounted at or near the surface of a concave main reflector and is aimed at a convex secondary reflector slightly…
Catastrophe TheoryA special branch of dynamical systems theory that studies and classifies phenomena characterized by sudden shifts in behavior arising from small changes…
catastrophic degradationThe rapid reduction of the ability of a system, subsystem, component, equipment, or software to perform its intended function.
CatchAt a recreational fishery, refers to the number of fish captured, whether they are kept or released.
Catch All ListingA listing used by pay per click search engines to monetize long tail terms that are not yet targeted by marketers.
catch clauseThe part of a try statement responsible for handling a caught exception.
catching exceptionsExceptions are caught within the catch clause of a try statement. Catching an exception gives the program an opportunity to recover from the problem or…
categoriesGroups of related content, organized hierarchically by subject matter.
CategorizationCategorization is the process of organizing pieces of information into topical categories.
categorizerA component of Exchange transport that processes all incoming messages and determines what to do with the messages based on information about the intended…
categoryA word, phrase, or number used to group documents in a view.
Category 3The ANSI/EIA/TIA-568 designation for 100-ohm unshielded twisted-pair cables and associated connecting hardware whose characteristics are specified for…
Category 4The ANSI/EIA/TIA-568 designation for 100-ohm unshielded twisted-pair cables and associated connecting hardware whose characteristics are specified for…
Category 5The ANSI/EIA/TIA-568 designation for 100-ohm unshielded twisted-pair cables and associated connecting hardware whose characteristics are specified for…
Category folderA folder that is used by coordinators to organize categories.
category treeA hierarchy of categories that is displayed in the enterprise search administration console.
CAVAbbreviation for component analog video. A signal in which an analog voltage or current, rather than a set of numbers, represents the value of a pixel.
cavity(KA-vih-tee) A hollow area or hole. It may describe a body cavity (such as the space within the abdomen) or a hole in a tooth caused by decay.
CBCumulonimbus cloud, characterized by strong vertical development in the form of mountains or huge towers topped at least partially by a smooth, flat…