Technology terms starting with P

1,398 terms

Pern What you get when you do Perl++ twice. Doing it only once will curl your hair. You have to increment it eight times to shampoo your hair.
Pershing II OBSOLETE. US intermediate-range missile deployed in Europe.
persistence Ability of an organism to remain in a particular setting for a period of time after it is introduced.
Persistent Chemicals with a long inactivation or degradation time, such as some pesticides.
persistent connection A connection between two networked devices that remains opened after the initial request is complete, to handle additional requests.
persistent data Information that endures beyond a single instance of use, e.g., longer than one call attempt. [T1.667-1999]
Persistent Disk All disk writes issued by software running inside a virtual machine are immediately and permanently written to a persistent virtual disk.
persistent field A virtual field of an entity bean that has container-managed persistence; it is stored in a database.
persistent format A data type, which may be simple or complex, that is independent of specific hardware or software, such that an object in this data type can be…
persistent lock A long-term database lock required when users wish to maintain a consistent view of their data while doing modifications over a long transaction.
persistent storage A long-term data storage solution. Options within AWS are: Amazon S3, Amazon EBS.
Personal Address Book A directory database that is stored on an IBM® Lotus® Notes® client and contains the names and addresses of users and groups added by Notes users.
personal agent Synonym droid. See bot.
personal authenticating information (PAI) Information such as a secret password, a badge, or biometric data-or any combination of these-used to authenticate a user's identity. [After X9.26]
Personal Communications Service See PCS.
Personal Communications Service (PCS) Any of several types of wireless, voice and/or data communications systems, typically incorporating digital technology.
personal de-registration The process by which end users cancel a previous registration to a terminal. [T1.702-1995] [T1.Rpt34-1994]
personal file Material belonging to an individual that was not created or received in the conduct of business while in the employ of an organization
personal identification device (PID) A physical device possessed by a user for authentication purposes [CESG].
personal identification number A unique and secret identification code similar to a password that is assigned to an authorized user and used to gain access to personal information or…
Personal Identification Number (PIN) Generally a four-character number or word, the PIN is the secret code given to credit or debit cardholders enabling them to access their accounts.
Personal Identity Verification Authorizing Official An individual who can act on behalf of an agency to authorize the issuance of a credential to an applicant.
Personal Identity Verification Card (PIV Card) Physical artifact (e.g., identity card, smart card) issued to an individual that contains stored identity credentials (e.g.
Personal Identity Verification Issuance Authority An authorized identity card creator that procures FIPS approved blank identity cards, initializes them with appropriate software and data elements for the…
Personal Identity Verification Registration Authority An entity that establishes and vouches for the identity of an applicant to a PIV Issuing Authority.
Personal Identity Verification Requesting Official An individual who can act on behalf of an agency to request a credential for an applicant.
personal mobility In universal personal telecommunications (UPT), (a) the ability of a user to access telecommunication services at any UPT terminal on the basis of a…
personal mobility controller In UPT (universal personal telecommunications), a facility that provides the control logic for user authentication, service request validation, location…
personal mobility management In PCS (personal communication service), the capability that (a) provides authentication of user identification and maintains user location information in…
personal number A number that uniquely identifies a PCS or UPT user (universal personal telecommunications service user) and is used to place, or forward, a call to that…
personal papers the records or archives of a private individual or family.
Personal Profile The Personal Profile is a Java ME profile specification. Layered on the Foundation Profile and CDC, the Personal Profile will be the next generation of…
personal registration In universal personal telecommunications, the process of associating a UPT user with a specific terminal.
personal station A light-weight, pocket-sized FPLMTS terminal (Future Public Land Mobile Telecommunication Systems terminal). [CCITT (ITU-T) Rec. F.115]
personal terminal In personal communications service, a lightweight, small, portable terminal that provides the capability for the user to be either stationary or in motion…
personal view A view of a list, SharePoint document library, or Web Part Page that is available only to a particular user.
Personal Web Navigator A feature that retrieves, displays, searches for, and stores Web pages in a local Personal Web Navigator database. This database is stored locally.
Personalization Altering the search results based on a person's location, search history, content they recently viewed, or other factors relevant to them on a personal…
personalized Web Part A shared Web Part that has been modified by a user in personal view. The changes made to a Web Part personalized in this way are visible only to the user…
PersonalJava PersonalJava is a Java environment based on the Java virtual machine (JVM) and a set of APIs similar to a JDK 1.1 environment.
PERT Program Evaluation and Review Technique. 223
PERT Chart A graphic portrayal of milestones, activities, and their dependency upon other activities for completion, and depiction of the critical path.
pervasive computing the ability to perform computing tasks from any location using a variety of devices, being brought about by the convergence of miniaturized electronics…
PESHE Programmatic Environmental Safety and Health Evaluation.
PET A NPC controlled by a player such as a Wolf, Infernal, and so on.
Petabyte A measure of data size. One petabyte is equivalent to 1,000 terabytes.
PFC Prototype Flight Cryocooler .
PFCA (Public folder connection agreement) A connection agreement in the Active Directory Connector (ADC) that is responsible for replicating Public Folder proxy objects between the Exchange 5.
PFD A personal flotation device or life jacket.
PFIAB Presidents Foreign Intelligence Advisory Board.
PFRD Protected Forest Root Domain
PFS Pre-Feasibility Study (UKMOD).
PGG Patrol Gunboat, Guided missile (Naval term).
PGGH Patrol Gunboat Guided Missile Hydro-foil (Naval term).
PGM Precision Guided Munition .
PGP Abbreviation for pretty good privacy. A publicly available implementation of a public-key encryption system using no trusted third party.
PGU Power Generation Unit.
PH&S Packaging, Handling and Storage (see PHST) (ILS term).
phantom circuit A third circuit derived from two suitably arranged pairs of wires, called side circuits, with each pair of wires being a circuit in itself and at the same…
phantom facility A transmission facility derived with repeating coils from two or more pairs of wires. [T1.238-1994/97] Synonyms phantom circuit, phantom pair.
phantom group Three circuits that are derived from simplexing two physical circuits to form a phantom circuit.
phantom pair Synonyms [loosely] phantom circuit, phantom facility.
Pharming A method of capturing sensitive information (such as Social Security numbers and passwords) by fooling a user into entering such information on a fake Web…
Phase Alternating current is carried by conductors and a ground to residential, commercial, or industrial consumers.
phase angle Of a periodic wave, the number of suitable units of angular measure between a point on the wave and a reference point.
phase bandwidth Of a network or device, the width of the continuous frequency range over which the phase-vs.
phase coherence The state in which two signals maintain a fixed phase relationship with each other or with a third signal that can serve as a reference for each.
phase coherent See phase coherence.
phase constant The imaginary part of the axial propagation constant for a particular mode, usually expressed in radians per unit length.
phase delay In the transmission of a single-frequency wave from one point to another, the delay of an arbitrary point in the wave that identifies its phase.
phase departure A phase deviation from a specified value. 2. An unintentional deviation from the nominal phase value.
phase detector A circuit or instrument that detects the difference in phase between corresponding points on two signals.
phase deviation In phase modulation, the maximum difference between the instantaneous phase angle of the modulated wave and the phase angle of the unmodulated carrier.
phase diagram A graphic representation of the phase relationships between two or more waveforms.
phase difference The time interval or phase angle by which one wave leads or lags another. Synonym phase offset.
phase distortion Distortion that occurs when (a) the phase-frequency characteristic is not linear over the frequency range of interest, i.e.
phase equalizer See delay equalizer.
phase flux reversal In phase-encoded recording, a magnetic flux reversal written at the nominal midpoint between successive "1" bits, or between successive "0" bits, to…
phase hit See yyhit.
phase instability The fluctuation of the phase of a wave, relative to a reference. Note: The fluctuation is often from unknown causes.
phase interference fading The variation in signal amplitude produced by the interaction of two or more signal elements with different relative phases.
phase inversion Introduction of a phase difference of 180°. Note: Phase inversion may occur with a random or periodic, symmetrical or non-symmetrical waveform, although…
phase jitter Rapid, repeated phase perturbations that result in the intermittent shortening or lengthening of signal elements.
phase jump A sudden phase change in a signal.
phase linearity Direct proportionality of phase shift to frequency over the frequency range of interest.
phase measurement tolerance The maximum allowable difference between a phase measurement and the actual phase value.
phase modulation (PM) Angle modulation in which the phase angle of a carrier is caused to depart from its reference value by an amount proportional to the instantaneous value…
phase noise In an oscillator, rapid, short-term, random fluctuations in the phase of a wave, caused by time-domain instabilities.
phase nonlinearity Lack of direct proportionality of phase shift to frequency over the frequency range of interest.
phase offset Synonym phase difference.
Phase One Engineering Team (POET) OBSOLETE. An FFRDC providing technical support to the Phase I Program Office. Now referred to as POET.
phase perturbation Any shifting (often quite rapid), from whatever cause, in the phase of a signal. Note 1: The shifting in phase may appear to be random, cyclic, or both.
phase quadrature See quadrature.
phase shift The change in phase of a periodic signal with respect to a reference.
phase term In the propagation of an electromagnetic wave in a uniform waveguide, such as an optical fiber or metal waveguide, the parameter that indicates the phase…
phase transients Perturbations in phase of limited duration seen at synchronization interfaces. Typical duration is several time constants of the slave clock which…
phase velocity The velocity of propagation of a uniform plane wave, given by (a) the product of the wavelength and the frequency divided by (b) the refractive index of…
phase-encoded (PE) recording Binary recording on magnetic media, such as magnetic disks, tapes, and cards, in which a "1" is represented by a magnetic flux reversal to the polarity of…
phase-frequency characteristic A Cartesian-coordinate plot of phase shift as the dependent variable, versus frequency as the independent variable.
phase-frequency distortion Synonym phase distortion.