Technology — page 174 of 206

Technology terms

17301. SPINE Cite The bones, muscles, tendons, and other tissues that reach from the base of the skull to the tailbone.
17302. SPINS Cite Special Instructions (JFACC term).
17303. Spiral Development Cite An iterative process for developing a defined set of capabilities within one increment.
17304. spiral track Cite A track with a spiral shape written on a diskette, as part of a method of copy protection. [2382-pt.8]
17305. spiral wrap Cite A molded, insulated plastic product in the form of a helix, used to contain or dress electrical wiring, e.g.
17306. spiral-four cable Cite A quadded cable with four conductors. Synonym star quadded cable.
17307. SPIRE Cite Space Performance in Radiation Environments.
17308. SPIRIT Cite As opposed to a ghost (see above), a spirit is normally the soul of the deceased that has crossed over, and exists in a spiritual or metaphysical plane.
17309. Splash page Cite Similar to a gateway page but provides an initial display which must be viewed before a visitor reaches the main page.
17310. splice Cite To join, permanently, physical media that conduct or transmit power or a communication signal. 2. A device that so joins conducting or transmitting media.
17311. splice closure Cite A usually weatherproof encasement, commonly made of tough plastic, that envelops the exposed area between spliced cables, i.e.
17312. splice loss Cite In fiber optic systems, any loss of optical power at a splice. Note: A practical splice, of physically realizable fibers, has losses attributable to a…
17313. splice organizer Cite In optical communication, a device that facilitates the splicing or breaking out of fiber optic cables.
17314. spline Cite A mathematical curve used to smoothly represent spatial variation. A spline operation inserts vertices to create a curve in an arc.
17315. split Cite 1. With respect to a signal, to divert a portion of it, or divide it, into usually predetermined or specified proportions. 2.
17316. split access token Cite A combination of full access token and filtered access token linked together by the local security authority (LSA) component of the operating system.
17317. split brain syndrome Cite Split brain syndrome occurs when all networks designated to carry internal cluster communications fail, and nodes cannot receive heartbeat signals from…
17318. split homing Cite The connection of a terminal facility to more than one switching center by separate access lines, each of which has a separate directory number.
17319. Split Knowledge Cite A procedure whereby a cryptographic key is handled as multiple key components from the time that the key or the separate key components are generated…
17320. split screen Cite On a display device, display space that has been divided into two or more areas, so that each area can display different portions of the same file or…
17321. splitter Cite See directional coupler, T-coupler, tee coupler.
17322. Splog Cite Spam blog, typically consisting of stolen or automated low quality content.
17323. SPM Cite Software Programmers Manual.
17324. SPO Cite See System Program Office. (Air Force)
17325. SPOCK Cite Security Proof of Concept Keystone.
17326. SPOD Cite Seaport of Debarkation.
17327. SPOE Cite Seaport of Embarkation.
17328. SPOF (Single Point of Failure) Cite A component of a cluster or node that, if it fails, affects access to applications or services. See also multiple points of failure.
17329. Spoliation Cite Generally, the intentional or negligent destruction or alteration of evidence when there is current litigation or an investigation or there is reasonable…
17330. Sponsor Cite An individual or business establishment that financially supports a race driver, team, race or series of races in return for advertising and marketing…
17331. sponsor certificate Cite A certificate that indicates the restrictions on those documents and transactions that an entity may authorize. [After X9.45]
17332. spontaneous emission Cite Radiation emitted when the internal energy of a quantum mechanical system drops from an excited level to a lower level without regard to the simultaneous…
17333. spoofed mail Cite An e-mail message whose sending address has been modified to appear as though it originates from a sender other than the actual sender of the message.
17334. Spoofing Cite Some market analysts maintain that the increased volatility in stock markets may be the result of an illegal practice known as spoofing, or phantom bids.
17335. Spool/Queue Cite A directory on the mail server that holds emails before they are viewed or downloaded from a client.
17336. spooling Cite The use of auxiliary storage as buffer storage to reduce processing delays when transferring data between peripheral equipment and the processors of a…
17337. Sporadic E Cite In solar-terrestrial terms, a phenomenon occurring in the E region of the ionosphere, which significantly affects HF radiowave propagation.
17338. sporadic E propagation Cite Synonym sporadic E.
17339. SPOT Cite Systeme Probatoire dObservation de la Terre - French observation satellite
17340. spot beam Cite In satellite communications systems, a narrow beam from a satellite station antenna that illuminates, with high irradiance, a limited area of the Earth by…
17341. Spot Instance Cite A purchase option available to AWS users. In essense, users can bid on spare Amazon EC2 instances and purchase them if their bid exceeds the current Spot…
17342. spot jamming Cite The jamming of a specific channel or frequency. [JP 1-02]
17343. spot projection Cite In facsimile systems, optical scanning in which a scanning spot is moved across the object and the scanning spot size is determined by the illuminated…
17344. spot size Cite The size of the electron spot on the face of a cathode ray tube. Note: The spot size is larger than the diameter of the electron beam because of the…
17345. spot speed Cite In facsimile systems, the speed of the scanning or recording spot along the available line.
17346. SPP Cite System Performance Parameters.
17347. SPR Cite (1) Secretarial Program Review (AF). (2) Secretarial Performance Review (OSD). (3) Sponsors Program Review (Navy).
17348. spread spectrum Cite Telecommunications techniques in which a signal is transmitted in a bandwidth considerably greater than the frequency content of the original information.
17349. Sprint Cite Nuclear-armed, short-range interceptor used in SAFEGUARD/Sentinel systems.
17350. SPRM Cite Solid Propellant Rocket Motor.
17351. SPRN Cite (Former) Soviet system for missile attack warning.
17352. SPS Cite Severe Weather Potential Statement
17353. SPT Cite Support.
17354. spur Cite A secondary route having a junction to the primary route in a network.
17355. spurious emission Cite Emission on a frequency or frequencies which are outside the necessary bandwidth and the level of which may be reduced without affecting the corresponding…
17356. spurious noise Cite Circuit noise or interference that is like a signal. [T1.401-1988]
17357. spurious radiation Cite Any unintentional emission.
17358. spurious response Cite In radio reception, a response in the receiver intermediate frequency (IF) stage produced by an undesired emission in which the fundamental frequency (or…
17359. spurious tones Cite Any tone that (a) is other than a fundamental tone or its harmonics, and (b) is generated within the back-to-back connected transmit and receive terminal…
17360. SPY-1 Cite AEGIS radar.
17361. Spyware Cite Software programs which spy on web users, often used to collect consumer research and to behaviorally targeted ads.
17362. SQA Cite Software Quality Assurance.
17363. SQL Cite Structured Query Language (Computer term).
17364. SQL Server computer Cite A computer with an installed configuration of Microsoft SQL Server with a configured database.
17365. SQL/J Cite A set of standards that includes specifications for embedding SQL statements in methods in the Java programming language and specifications for calling…
17366. SQL/MM Cite An international standards effort, sponsored by ISO to extend SQL to support multimedia applications, including access and manipulation of geographic data.
17367. sqrt Cite Square foot.
17368. Square Cite A unit of land defined by the DC Surveyor that normally consists of a single city block and contains record and tax lots.
17369. square pixel Cite A pixel of equal width and height; i.e., having an aspect ratio of 1:1 Note: Pixels created by computer graphics usually have an aspect ratio of 1:1.
17370. square wave Cite A wave that has two significant conditions, i.e., two levels of amplitude, that change from one condition to the other in a relatively short time compared…
17371. squatting Cite See cybersquatting.
17372. squelch Cite A circuit function that acts to suppress the audio output of a receiver. [NTIA] Note: The squelch function is activated in the absence of a sufficiently…
17373. Squidoo Cite Topical lens site created by Seth Godin. See also: Squidoo.com
17374. SR Cite AFSPC Regulation.
17375. SRA Cite System Requirements Analysis. 275
17376. SRAM Cite Short-Range Attack Missile.
17377. SRAT (System Resource Allocation Table) Cite table that keeps track of memory allocated to a virtual machine.
17378. SRB Cite Solid Rocket Booster.
17379. SRBM Cite See Short Range Ballistic Missile.
17380. SRD Cite Systems Requirement Document.
17381. SRDF (Symmetrix Remote Data Facility) Cite A level 1-3 protocol used for physical data replication between EMC Symmetrix disk arrays.
17382. SREMP Cite Source Region Electromagnetic Pulse.
17383. SRF Cite (Surf Zone Forecast) - A National Weather Service routine or event driven forecast product geared toward non-boating marine users issued for an area…
17384. SRHIT Cite OBSOLETE. Small Radar Homing Intercept Technology. Predecessor program to Flexible Lightweight Agile Guided Experiment (FLAGE).
17385. SRIM Cite Short-Range Intercept Missile.
17386. SRINF Cite Short Range Intermediate Nuclear Force.
17387. SRL Cite (1) Site Readiness Level. (2) System Readiness Level. (3) Super Radiant Laser.
17388. SRM Cite Service Reference Model - also known as a Service Component Reference Model -- a business and performance-driven, functional framework that classifies…
17389. SRM (Storage Resource Management) Cite the industry term for software that manages storage.
17390. SRMP Cite Sounding Rocket Measurement Program.
17391. SRMSC Cite Stanley R. Mickelsen SAFEGUARD Complex site.
17392. SRMU Cite Solid Rocket Motor Upgrade.
17393. SRO Cite System Readiness Objective.
17394. SRR Cite System Requirements Review.
17395. SRS Cite A type of radionuclide scan used to find carcinoid and other types of tumors. Radioactive octreotide, a drug similar to somatostatin, is injected into a…
17396. SRS (Site Replication Service) Cite A directory service (similar to the directory used in Exchange Server 5.5) implemented in Exchange 2000 to allow the integration with downstream Exchange…
17397. SRT Cite Strategic Red Team.
17398. SRTBM Cite Short range theater ballistic missile.
17399. SRU Cite Shop Replaceable Unit.
17400. SRV Cite Single Reentry Vehicle.