20,531 terms including subtopics (0 terms filed directly here)
Technology terms
PortabilityPortability is a provision of the INA intended to preserve the legal status of an H-1B worker who is already in the U.S.
portablePortability is the quality of a program that makes it possible to run it on different types of computers.
Portable Batch System (PBS)A job scheduler mechanism supported by GRAM. For more information, see http://www.openpbs.org.
portable station1. A station capable of being carried by one or more persons. Note: A portable station usually has a self-contained power source and can be operated while…
Portal SiteA generic term for any site which provides an entry point to the internet for a significant number of users.
porterSomeone who "carries" software from one "platform" to another. Porting programs written in platform-dependent languages such as C can be difficult work…
Portrait ModeA display where the height exceeds the width.
PoseidonClass of US nuclear ballistic submarines (USN term).
positioned channelIn integrated services digital networks (ISDN), a channel that occupies dedicated bit positions in the framed data stream.
positioned interface structureWithin a framed interface, a structure in which positioned channels provide all services and signaling.
PositioningThe process of ordering web sites or web pages by a search engine or a directory so that the most relevant sites appear first in the search results for a…
Positioning TechniqueA method of modifying a web page so that search engines (or a particular search engine) treat the page as more relevant to a particular query (or a set of…
positive control material[A] generic term referring to a sealed authenticator system, permissive action link, coded switch system, positive enable system, or nuclear command and…
positive feedbackthe process in which an initial change will bring about an additional change in the same direction.
POSIX 1003.1AA revision to the POSIX 1003.1 standard that defines a set of standard operating system interfaces and an environment for application programs written in…
POSIX 1003.4aDefines thread support to facilitate writing multitasking operations, particularly server applications.
POSIX character setPOSIX character sets support languages which only require 7-bit characters (such as US English). See also extended character set.
POSIX Open System Environment (POSIX OSE)The Open System Environment in which the standards included are not in conflict with ISO/IEC 9945 and are: - International Standards and Profiles…
POSIX Standardized Profile (POSIX SP)A standardized Profile that specifies the application of certain POSIX base standards in support of a class of applications and does not require any…
possible ownerA node in a failover cluster or server cluster that can run a specific resource.
Post-AttackThe period following the attack, prior to the next wave.
Post-Attack PeriodIn nuclear warfare, that period which extends from the termination of the final attack until political authorities agree to terminate hostilities.
Post-Boost Phase (PBP)That portion of the trajectory of a ballistic missile between the end of powered flight and release of the last RV.
Post-Boost Vehicle (PBV)The portion of a rocket payload that carries multiple warheads and which has the maneuvering capability to independently target each warhead on a final…
post-production processingIn broadband ISDN (B-ISDN), applications, the processing of audio and video information after contribution and prior to final use.
postalizeIn communications, to structure rates or prices so that they are not distance sensitive, but depend on other factors, such as call duration, type of…
postfixAn "operator" that follows its "operand", as in $x++.
postingA message in a computerized messaging system, and which can be retrieved by multiple entities on multiple occasions. Synonym article.
PostmasterThe person to contact at a particular server/site to get help, or information about that server/site.
Potential ImpactThe loss of confidentiality, integrity, or availability could be expected to have: a limited adverse effect (FIPS 199 low); a serious adverse effect (FIPS…
PowerAuthority to do. One has the power to do something if he is of legal age. Also, used as "powers," the term refers to authority granted by one person to…
power budgetThe allocation, within a system, of available electrical power, among the various functions that need to be performed.
power circuit breaker (PCB)1. The primary switch used to apply and remove power from equipment. 2. A circuit breaker used on ac circuits rated in excess of 1500V.
Power DensityThe amount of power per unit area of a free windstream.
power downWith respect to an electrical and especially an electronic device, to turn off or otherwise disconnect its primary source of electric power.
power entrance facility (PEF)A space in a building where commercial ac power, standby ac power, or both, enter the building.
Power factorThe ratio of real to total power. In alternating-current power transmission and distribution, the cosine of the phase angle between the voltage and…
power failure transfer1. The switching of primary utilities to their secondary backup whenever the primary source operates outside its design parameters. 2.
power marginThe difference between available signal power and the minimum signal power needed to overcome system losses and still satisfy the minimum input…
power upWith respect to an electrical and especially an electronic device, to turn on or otherwise connect its primary source of electric power.
power-law index profileFor optical fibers, a class of graded-index profiles characterized by where n(r) is the nominal refractive index as a function of distance from the fiber…
PowerPathA host-based software product from Symmetrix that delivers intelligent I/O path management.
Poynting vectorThe vector obtained in the direction of a right-hand screw from the cross-product (vector product) of the electric field vector rotated into the magnetic…
PP(1) Parallel Processing. (2) Principal Polarization. (3) Post Processing. (4) Program Plan.
PPBES(1) Planning, Programming, Budgeting, and Execution System. (2) Program Planning and Budgeting System.
Practice StatementA formal statement of the practices followed by an authentication entity (e.g., RA, CSP, or verifier); typically the specific steps taken to register and…
pragmaA standard module whose practical hints and suggestions are received (and possibly ignored) at compile time. Pragmas are named in all lowercase.
PRB(1) Planning and Resources Board. (2) Program Review Board.
Pre Launch SurvivabilityThe probability that a delivery and/or launch vehicle will survive an enemy attack under an established condition of warning.
Pre-Allocated DefenseA preplanned decision to designate a specific number of defensive assets to be used against a specific target or set of targets or to defend a specified…
pre-arbitrated slotA slot dedicated by the head-of-bus function for transferring isochronous service octets.
Pre-AttackA period of time immediately prior to an attack, usually hours to minutes to tip-off.
Pre-Authorized Engagement Criteria (PEC)Pre-specified quantitative operational parameter thresholds which when surpassed cause automated engagements to be enabled.
Pre-Commit StrategyA tactic in which defense weapons are fired without being individually committed to specific targets.
pre-staged clientA computer account object that is created within Active Directory Domain Services (AD DS) before the operating system of the computer is installed.
Preallocated DiskA type of virtual disk in which all the host disk space for the virtual machine is allocated at the time the virtual disk is created.