Technology — page 179 of 206

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

Technology terms

substring A portion of a "string", starting at a certain "character" position ("offset") and proceeding for a certain number of characters.
Substring search Searching for parts of a string as with a wildcard search ("*term*"). A word or token (for Asian language documents) is split up in smaller entities, so…
Subsystem A functional grouping of components that combine to perform a major function within an element, such as attitude control and propulsion.
Subtractive Defense First come first engaged as long as weapons last.
subtributary office A class of tributary office which does not have direct access to its toll center, but which is connected to its toll center office by means of circuits…
subtype If type X extends or implements type Y, then X is a subtype of Y. See also supertype.
subvoice-grade channel A channel with a bandwidth narrower than that of a voice-grade channel. Note: A subvoice-grade channel is usually a subchannel of a voice-grade line.
SUCCESS Synthesized UHF Computer Controlled Equipment Subsystem.
successful block delivery The transfer of a nonduplicate user information block between the source user and intended destination user.
successful block transfer The transfer of a correct, nonduplicate, user information block between the source user and intended destination user.
successful disengagement The termination of user information transfer between a source user and a destination user in response to a disengagement request.
Succession of Command The planned or actual sequence in which subordinate commanders, in turn, become de facto commanders of a senior organization.
successor agency an agency that is authorized by law to accept and maintain the legal title, custody, and dominion of records that were created by another agency.
Sudden Ionospheric Disturbance (SID) In solar-terrestrial terms, HF propagation anomalies due to ionospheric changes resulting from solar flares, proton events and geomagnetic storms.
suitability of function An aspect of the assessment of the effectiveness of a Target of Evaluation, namely the suitability of its security enforcing functions and mechanisms to…
Sullivan, Danny Founder and lead editor of SearchEngineWatch.com, who later started SearchEngineLand.com.
SUM Software Users Manual (Computer term).
sum check Synonym summation check.
summarization The process of including sentences in search results to briefly describe the content of a document.
Summary Metadata This is a shorter set of metadata to provide the basic information about a dataset.
summation check 1. A check based on the formation of the sum of the digits of a numeral. Note: The sum of the individual digits is usually compared with a previously…
Sunk Costs The costs of resources already committed or spent. In comparing two alternatives, such costs are "non-additive," and they are not germane to decisions…
sunshine laws See Freedom of Information Act.
Sunspot Dark areas on the Sun created by strong magnetic fields beneath the Sun’s surface.
Sup Pro Supporting Programs (MDA term).
Super Survivable Solar Power Subsystem Demonstrator.
super class A class that is extended by one or more sub classes. All Java classes have the Object class as a super class. See super type.
super high frequency (SHF) See electromagnetic spectrum.
Super Radiance The process used by a super radiant laser to generate or amplify a laser beam in a single pass through a lasant material, or, in the case of a free…
super type A type with a child sub type. The sub-type/super-type relationship is more general than the sub-class/super-class relationship.
superclass A class from which a particular class is derived, perhaps with one or more classes in between. See also subclass, subtype.
superencryption [The] process of encrypting encrypted information. Note: [This process] occurs when a message, encrypted off-line, is transmitted over a secured, on-line…
superframe (SF) In T-carrier, a synchronization frame that delineates 12 DS1 frames. [J. Beaty, FAA] 2.
supergroup See group, multiplex hierarchy.
supergroup distribution frame (SGDF) In frequency-division multiplexing (FDM), the distribution frame that provides terminating and interconnecting facilities for group modulator output…
superhighway See National Information Infrastructure.
Superior Certification Authority (CA) In a hierarchical PKI, a Certification Authority who has certified the certificate signature key of another CA, and who constrains the activities of that…
superluminescent LED A light-emitting diode in which there is stimulated emission with amplification but insufficient feedback for oscillations to build up to achieve lasing…
Superradiance The process used by a superradiant laser to generate or amplify a laser beam in a single pass through a lasant material, or, in the case of a free…
Superradiant Laser (SRL) A laser in which the beam passes through the lasant only once; mirrors are not required for the operation of such a laser, as they are with more…
supersector An oversized sector written on a diskette, as part of a method of copy protection. [2382-pt.8]
supersession [In security,] scheduled or unscheduled replacement of a COMSEC aid with a different edition. [INFOSEC-99]
superthreading See time-slice multithreading.
supertype The supertypes of a type are all the interfaces and classes that are extended or implemented by that type. See also subtype, superclass.
superuser The person whom the "operating system" will let do almost anything. Typically your system administrator or someone pretending to be your system…
superuser do (sudo) Allows a system administrator to give certain users (or groups of users) the ability to run some (or all) commands as root or another user while logging…
Supervised clustering Supervised clustering provides a grouped view based on pre-defined categories, and maps results to pre-determined categories (that is, category…
supervisor Synonym supervisory program.
supervisor state Synonym executive state.
Supervisory control A system used to monitor conditions and operate mechanical features associated with a facility from a location other than at the site.
supervisory program A program, usually part of an operating system, that controls the execution of other routines and regulates work scheduling, input-output operations…
Supervisory Programs Computer programs that have the primary function of scheduling, allocating, and controlling system resources rather than processing data to produce…
supervisory routine Synonym supervisory program.
supervisory signaling Specific electrical conditions (called "on-hook" and "off-hook") at the NI (network interface) that are used to control call states and processes. [T1.
supervisory signals Signals used to indicate, or to indicate and control, the various operating states of the circuits or circuit combinations involved in a particular…
Supplemental Appropriation Budget authority provided in an appropriations act in addition to regular or continuing appropriations already provided.
Supplemental Pages Pages which are indexed in Google but do not exist at this time. But during searching for a particular thing they are shown in the search result pages.
Supplemental Results Documents which generally are trusted less and rank lower than documents in the main search index.
Supply The availability of services or goods at centers. An example of a type of supply is the availability of milk at grocery stores, cars at a car dealer, or…
Support Equipment All system equipment required to support the ground and flight phases of the mission.
Support Personnel Individuals, in addition to operators, trainers, and maintainers, who are directly associated with an operational system(s), and who are critical to its…
Support Software Software that aids in the development or maintenance of other software, for example compilers, loaders, and other utilities.
supported AMI An Amazon Machine Image similar to a paid AMI, except that the owner charges for additional software or a service that customers use with their own AMIs.
supportive security application Specific type of application that provides security services or security management capabilities at application level rather than embedded in the…
suppressed carrier single-sideband emission A single-sideband emission in which the carrier is virtually suppressed and not intended to be used for demodulation. [NTIA] [RR]
suppressed carrier transmission Amplitude modulation (AM) transmission in which the carrier level is reduced below that required for demodulation.
Suppression Temporary or transient degradation of the performance of a weapons system, below the level needed to fulfill its mission objectives, by an opposing force.
suppression measure [An] Action, procedure, modification, or device that reduces the level of, or inhibits the generation of, compromising emanations in an information system…
SUPSHIP Superintendent of Shipbuilding.
SURCOM Surveillance Constellation.
surf Slang. To search the Web, by navigating in a nonlinear and seemingly random way, often without a specific objective.
surface A geographic phenomenon represented as a set of continuous data, such as elevation or air temperature over an area.
surface data Information about variations in the surface of the Earth that are referenced to a known coordinate system and vertical datum.
surface model Digital abstraction or approximation of a surface. Because a surface contains an infinite number of points, some subset of points must be used to…
surface refractivity The refractive index of the Earth's atmosphere, calculated from observations of pressure, temperature, and humidity at the surface of the Earth.
surface wave A wave that is guided along the interface between two different media or by a refractive index gradient.
Surge A rapid increase in the depth of flow.
Surge Production An increased rate of production necessary to meet demands for defense items due to a need for accelerated production to meet a threat or for a wartime or…
surge protective device (SPD) An assembly of one or more components intended to limit or divert surges; the device contains at least one nonlinear component. [T1.
surge suppressor Synonyms arrester, surge protective device, surge protector.
surrogate access See discretionary access control.
Surveillance (ser-VAY-lents) In medicine, the ongoing collection of information about a disease, such as cancer, in a certain group of people.
Surveillance Requirements Requirements are requests for surveillance, including relative priorities for coverage and sensitivity levels, based on operational orders, selected…
Surveillance System Configuration The sensor types and locations and the modes of operation currently activated in the surveillance system. 283
Surveillance, Satellite and Missile The systematic observation of aerospace for the purpose of detecting, tracking, and characterizing objects, events, and phenomena associated with…
Survey A precise measurement of a property by a licensed surveyor, showing legal boundaries of a property and the dimensions and location of improvements.
survivability A property of a system, subsystem, equipment, process, or procedure that provides a defined degree of assurance that the named entity will continue to…
Survivability Operating Modes The operating modes not including but in addition to the self-defense modes that all the elements can use to protect themselves against direct enemy…
Survivable and Enduring Command Center (SECC) The USSTRATCOM mobile C2 facility.
survivable operation See survivability.
survival craft station A mobile station in the maritime mobile service or the aeronautical mobile service intended solely for survival purposes and located on any lifeboat…
SUS Site Utilization Study.
susceptibility In electronic warfare, the degree to which electronic equipment is affected by electromagnetic energy radiated by an enemy's equipment, such as jamming…
susceptibility threshold 1. The amount of undesired signal power required at the input terminals of a receiver to cause barely perceptible interference at the receiver output…
susceptiveness In telephone systems, the extent to which circuits pick up noise and low-frequency energy by induction from power systems.
suspension order See legal hold.
Sustainer Propulsion stage of a missile usually operating after the booster cutoff.
SV Space Vehicle.
SVC Switched Virtual Circuit. An ATM network connection established through signaling. The user defines the endpoints when the call is initiated.
SVM (Secure Virtual Machine) Another name for AMD's version of virtualization assist, included in some 64-bit AMD processors. See AMD Virtualization.