Apple Mac OS developers glossary letter P

What is Pid Definition Process identifier. A number that uniquely identifies a process. Also called a process ID compare
What is Preemption Explain The act of interrupting a currently running program in order to give time to another task why
What is Premultiplied What is In image processing, said of a pixel that already has its intensity levels appropriately multiplied by the alpha value how better
What is Probe Meaning candidate driver communicates with a device and verifies whether it can drive it. The driver’s probe member function is invoked to kick off when
What is Modulation Pitch Abbreviation The maximum amount by which the actual frequency of speech may deviate from the speech pitch determines
What is Property How to store a value. Properties can specify characteristics of objects. (2) In KVC, any of the three kinds of object values that KVC can access comparing to
What is Configuration Project Help In Xcode, the set of development features, project attributes, and project and target build settings used in a project depends on
What is Pool Crossword See buffer pool which
What is Postscript Examples appearance (text and graphics) of a printed page. PostScript is an industry standard for printing and imaging. Many printers contain or can difference
What is Searching Prefix Encyclopedia A prefix search involves matching a term in a query string to indexed terms, with an explicit wildcard character at the end of the query when
What is Page Information about of information that the virtual memory system can transfer between physical memory and backing store. (2) (v.) To transfer pages between pros and cons
What is Pthreads Tutorial The POSIX threads implementation. See also WebObjects Builder , thread similarities
What is Coding Perceptual Error of limitations in human perception. In perceptual coding, audio data is selectively removed based on how unlikely it is that a listener how much
What is Mechanizm Based Policy Answer A system that requires authorization to perform a privileged operations how many
What is Size Point Means what from the baseline of one line of text to the baseline of the next line of single-spaced text. In the United States, point size is measured compare
What is Plane Description in the I/O Registry that have a certain type of provider/client relationship connecting them. The most general plane is the Service plane why
What is Priority Definition how likely a thread is to run. The higher the thread’s priority, the more likely the thread is to run. See also scheduling policy how better
What is Function Polynomial Explain commonly used for transforming pixel intensities in an image that is a summation of n factors and coefficients in the form of ax n + bx n when
What is Path What is Quartz paints as a unit. A path can consist of straight lines, curves, or both. It can be open or closed. (2) For documentation sets, the determines
What is Gid Process Meaning three group IDs: the real group ID (RGID), effective group ID (EGID), and saved group ID (SGID). The RGID is always inherited from the user comparing to
What is Pbuffer Abbreviation See simple search depends on
What is Portal Program How to A restricted-access area of the iOS Dev Center that allows you to configure devices to test your iOS applications which
What is Psychoacoustics Help The study of the perception of sound. The development of perceptual coding techniques relies on psychoacoustics difference
What is Root Project Crossword control operations are rooted and that serves as the origin of a project hierarchy. By default, a project root is the project directory when
What is Variable Parameter Examples handler definition that represents the actual value of a parameter when the handler is called. Also called a formal parameter pros and cons
What is Poster Encyclopedia A frame shot from a movie, used to represent its content to the user similarities
What is Format Pixel Information about memory. The format describes the pixel components (that is, red, blue, green, alpha), the number and order of components, and other how much
What is Formatting Page Tutorial A description of how the pages of a document should be printed; page formatting includes such information as page and paper sizes how many
What is Window Info Project Error and editing information kept at the project level, such as general information, project build settings, project build configurations, and compare
What is Password Answer Data, usually a character string, used to authenticate a user for a service or application why
What is Palette Means what document windows and that provides items to be used when other windows are open, such as a palette that provides drawing tools how better
What is Pacing Description The distribution of the interpolated values of an animation across the duration of the animation when
What is Pen Definition See stylus determines
What is Schemat S Painter Explain In Quartz, a drawing model in which each successive drawing operation applies a layer of paint to a page comparing to
What is Right Port What is In Mach , a specification of which task can send to or receive from a particular port depends on
What is File Pkg Meaning An OS X Installer file. .pkg files can be combined into a metapackage (.mpkg which
What is Event Pen Abbreviation In the Ink Services technology, a mouse event that contains tablet data difference
What is Parent Power How to In the power plane, an object that provides power for a device. Compare power child . See also plane when
What is Presets Printing Help settings for the Print dialog. Printing presets are provided by Apple or printer vendors to reduce the need for users to navigate to pros and cons
What is Atom Profile Crossword An atom of type 'prfl', which summarizes the features of a movie or track similarities
What is Manager Printing Examples routines that can be used by a Classic application to print from the Macintosh computer to any type of connected printer. This has been how much
What is Space Pattern Encyclopedia to the default user space by the transformation matrix (the pattern matrix) you specify when you create the pattern. Pattern space is how many
What is Pdf Information about created by Adobe Systems to represent documents in a manner independent of the software, hardware, and operating system. The format became compare
What is Line Alternation Phase Tutorial See unidirectional text why
What is Package Product Error all the components of a product. Product packages with multicomponent products contain or reference component packages. See also how better
What is O I Programmed Answer transfer with explicit load and store instructions to device registers, rather than DMA, and without the use of interrupts. This data when
What is Pmap Means what abstract way to set and fetch virtual-to-physical mappings from hardware. The pmap system is the machine-dependent layer of the VM system determines
What is Panorama Description A structure of QuickTime VR data that forms a virtual-world environment within which the user can navigate comparing to
What is Queue Printer Definition A temporary holding area for print jobs waiting to be printed depends on
What is Profile Provisioning Explain development to be installed on an iOS-based device. It contains one or more development certificates, an application ID, and one or more which
What is Pkinit What is A protocol that defines the use of public key cryptography for initial authentication in Kerberos difference
What is Preauthorization Meaning performing the actual authorization. Preauthorization is used to determine if a user has the possibility of authorizing later when
What is Center Print Abbreviation An application that allows users to locate and select printers, and control and obtain status for print jobs pros and cons
What is Database Policy How to A database containing the set of rules the Security Server uses to determine authorization similarities
What is Handler Protocol Help from input packets (giving the data to interested programs) and inserts data into output packets (giving the output packet to the how much
What is Searching Phrase Crossword terms, with the query string considered as a complete phrase. A match occurs when the exact query phrase appears in a document. Search Kit how many
What is Scrap Mlte Private Examples Scrap used exclusively by MLTE compare
What is Stack Protocol Encyclopedia A layer of the kernel network architecture containing the core functionality for a protocol family such as TCP/IP why
What is Certificate Key Public Information about See digital certificate how better
What is Rectangle Page Tutorial the printable area on a page. The upper-left corner of the page rectangle always has the coordinates (0,0). The coordinates of the lower when
What is Painting Error For the Quartz equivalent of the QuickDraw painting operation (such as that used for the QuickDraw function PaintOval), see filling determines
What is Pcm Answer encoding technique widely used for working with audio, invented by Alec H. Reeves in 1937. Sometimes called LPCM for linear pulse-code comparing to
What is Filter Socket Programmatic Means what A socket filter that is enabled only under program control by calling setsockopt on a specific socket depends on
What is Dialog Print Description application in response to the user choosing the Print command—that solicits printing information from the user, such as the number of which
What is Quality Playback Definition track in a QuickTime movie. You can control the playback quality of a movie during movie playback. QuickTime chooses tracks from alternate difference
What is Menu Up Pop Explain current choice and can be opened to present a list of mutually exclusive choices in a dialog or window. Pop-up menus have a double triangle when
What is Peek What is To examine an event in an event queue (obtaining its class, kind, parameters and so on) without removing it from the queue. Compare pull pros and cons
What is In Plug Meaning separate from a host (such as an application, operating system, or other plug-in) that, by conforming to an interface defined by the host similarities
What is List Package Abbreviation that lists the packages the project defines. This list is divided in two parts: the installation-package file (which contains all the how much
What is Browser Printer How to A module used to discover specific types of printers, such as USB or LPR printers how many
What is Frame Priming Help A webpage template of audio data used for priming compare
What is Package Crossword the user so that it appears to be a single file, and whose contents are ordinarily inaccessible for browsing by the user. Compare folder why
What is Provider Examples services of some kind to its client. In a driver stack, the provider in a provider/client relationship is closer to the Platform Expert how better
What is Uid Process Encyclopedia three user IDs: the real user ID (RUID), effective user ID (EUID), and saved user ID (SUID). The RUID is always inherited from the user or when
What is Memory Physical Information about random-access memory (RAM) chips, used to temporarily hold information at execution time. Addresses in a process’s virtual memory are determines
What is Pki Tutorial by the X.509 standard, the set of hardware, software, people, policies, and procedures needed to create, manage, store, distribute, and comparing to
What is Comment Picture Error processing by output devices, such as printer drivers. Picture comments are usually stored in the definition of a picture or are included depends on
What is Form Reference Property Answer In AppleScript, a reference form that specifies a property of an application , record , or script object which
What is Preview Means what representation of the contents of a file. Previews in file dialog boxes give the user a visual cue about a file’s contents. See also file difference
What is Patch Description unit in a composition, which executes and produces a result. Patches are similar to routines in traditional programming languages. See when
What is Key Public Definition A cryptographic key that can be shared or made public without compromising the cryptographic method. See also public key cryptography pros and cons
What is parent document URL object Explain the location of the enclosing folder for a document or for another parent document URL object. Search Kit manages documents using parent similarities
What is Window Palette What is provides a number of palettes (or panes), each of which contains object instances you can add to an application how much
What is Requirement Package Meaning package can be installed on the computer. A package requirement can be optional; such requirements display a warning to the user but allows how many
What is Key Private Abbreviation secret. Whereas a pair of identical private keys can be used as symmetric keys , asymmetric keys consist of one private key and one public compare
What is Extension Dialog Printing How to A printing plug-in that implements one or more panes in a printing dialog why
What is Indicator Progress Help A control that lets the user know that a task is in progress how better
What is Dialog Setup Page Crossword application in response to the user choosing the Page Setup command—that allows the user to specify the printing options (such as the paper when
What is Port Examples channel for communication between tasks running on a single system. (2) In IP transport protocols, an integer identifier used to select a determines
What is Number Pseudorandom Encyclopedia produces a series of numbers with no discernible pattern. It should be impossible or nearly impossible to deduce the algorithm from such a comparing to
What is Settings Print Information about of a print job on a specific printer; print settings include such information as the number of copies, number of pages per sheet, and depends on
What is Packagemaker Tutorial A tool that builds an installable software package from the files you provide which
What is Properties Package Error Installer details about the package itself, such as its identifier, version number, and resource fork processing difference
What is Table Packet Answer stream, metadata consisting of a table of packet descriptions. See also simple message , packet description when
What is Window Project Means what A window that displays and organizes the files that make up an Xcode project pros and cons
What is Modifier Phoneme Description A symbol defined to adjust the pronunciation of an individual phoneme. Phoneme modifiers are also called prosodic control symbols similarities
What is Phoneme Definition A distinct unit that serves to distinguish between meanings of words how much
What is Prefetching Explain allows you to suppress fault creation for an entity’s relationships. Instead of creating faults, the relationship data is fetched when the how many
What is Plist What is See property list compare
What is Pull Meaning audio data, typically from a buffer . Data typically moves through an audio processing graph by way of a cascade of pull requests initiated why
What is Posix Abbreviation Portable Operating System Interface. An operating-system interface standardization effort supported by ISO/IEC, IEEE, and The Open Group how better
What is Searching String Partial How to to indexed terms, with implied wildcard characters at the start and end of each query term. Each term is matched separately. Search Kit when
What is Dialog Printing Help A window provided by the printing system to elicit a response from the user. See also Page Setup dialog , Print dialog determines
What is Matrix Projection Crossword A matrix that OpenGL uses to transform points, lines, polygons, and positions from eye coordinates to clip coordinates comparing to
What is Module Printer Examples graphics content in a print job for output to a specific model or family of printers. Printer modules are created by printer vendors to depends on
What is Operation Privileged Encyclopedia An operation that requires special rights or permissions; for example, changing a locked system preference which
What is Primitives Information about The simplest elements in OpenGL—points, lines, polygons, bitmaps, and images difference
What is Parameter Tutorial defines an adjustable attribute such as volume, pitch, or filter cutoff frequency. Each audio unit parameter has a name, a unit (such as when
What is Znak Control Prosodic Error See phoneme modifier pros and cons
What is Atom Parent Answer A QT atom that contains other QT atoms, which are its child atoms. See also child atom similarities
What is Direction Line Primary Means what left or left-to-right) of the current text. The primary line direction is typically specified by the value of the global system direction how much
What is Packet Description of information sent on a network. (2) In Core Audio, an encoding-defined unit of audio data comprising one or more frames. For PCM audio how many
What is Structure Protosw Definition A data structure containing function pointers and data associated with a protocol family compare
What is Prosody Explain The rhythm, intonation, and lexical stress in speech why
What is Payload What is The product or product components contained in an installation package. See also installation package how better
What is Address Physical Meaning such as a memory chip, can directly respond. Programs, including the Mach kernel, use virtual addresses that are translated to physical when
What is Pager Abbreviation A module responsible for providing the data for the pages of a memory object. See also default pager , vnode pager determines
What is Identifier Provider How to responsible for the contents of an installation package; for example,com.apple . PackageMaker uses this identifier to generate default comparing to
What is Track Panorama Help A track in a QuickTime VR movie that contains a panorama depends on
What is Pane Feed Paper Crossword A pane in the Print dialog that lets the user specify the printer trays from which a print job should be printed which
What is File Project Examples A file created by Xcode that organizes source code, resources, and settings used to build a product difference
What is Format Image Planar Encyclopedia for images. Planar images tend to be faster to operate on than nonplanar images because operations do not need to be repeated for each when
What is Pointer Information about value actually serves as a reference to a value stored in a specific location. (2) In a human interface, a cursor pros and cons
What is Permissions Tutorial who can read, write, and execute resources in the file system. The output of the ls -l command represents permissions as a nine-position similarities
What is Icon Proxy Error window that users can manipulate as if they were manipulating the corresponding file-system object. Users can Command-click the proxy icon how much
What is Infrastructure Key Public Answer See PKI how many
What is Polyphonic Means what Describes an instrument capable of playing more than one note simultaneously. Compare monophonic . See also monotimbral , multitimbral compare
What is Depth Pixel Description The number of bits per pixel in a pixel image why
What is Job Print Definition document and the settings that control printing the document and keep track of it once the job has been added to a printer’s queue how better
What is Priming Explain frames to a set of audio data to support format conversion or SRC (sample rate conversion). If a converter requires priming and no leading when
What is Editor Package Product What is that specifies packaging and installation information about a product. This pane is displayed when the product package is selected in the determines
What is In Plug Printing Meaning A stand-alone code module—packaged as a Core Foundation plug-in—that adds functionality to the OS X printing system comparing to
What is Plumber Protocol Abbreviation A network kernel extension that routes data between an interface and a network protocol stack depends on
What is Pal How to encoding system used widely in Europe, in which one of the subcarrier phases derived from the color burst is inverted in phase from one which
What is Container Product Help A file that contains a packaged or unpackaged product. The two container types are disk image and ZIP archive difference
What is Set Port Crossword ports. A thread can receive messages sent to any of the ports contained in a port set by specifying the port set as a parameter to msg when
What is Driver Passive Examples basic power-management tasks, such as joining the power plane and changing the device’s power state. See also active driver pros and cons
What is Modulation Code Pulse Encyclopedia See PCM similarities
What is Loop Print Information about The sequence of function calls that set up and execute the printing of a document in an application how much
What is Number Version Package Tutorial iteration of a single-component product package, or an iteration of a component package within a product package. This version number how many
What is Queue Audio Playback Error See audio queue compare
What is Panel Answer windows and provides tools or controls that users can work with while documents are open. Panel is not a user term; the equivalent term is why
What is File Ppd Means what text file, created by a printer vendor, that contains keywords and other information to specify features, options, and settings for a how better
What is Buffer Pixel Description information in main memory. In OpenGL, a type of drawable object that allows the use of offscreen buffers as sources for texturing. Pixel when
What is Pef Definition of executable files used for applications and shared libraries in Mac OS 9; supported in OS X. The preferred format for OS X is Mach-O determines
What is Object Settings Print Explain printing system to store information from the Print dialog, such as number of copies, number of pages per sheet, and print quality comparing to
What is per-file compiler flags What is A flag that you can use to customize the build process of source files of a particular type depends on
What is Pane Features Printer Meaning contains any user interface feature specified in a PostScript printer description (PPD) file that isn’t already a feature in Apple-provided which
What is Child Power Abbreviation In the power plane, a driver for a device that relies on another object for its power. Compare power parent . See also plane difference
What is Parser How to program that works with a tokenizer to interpret a sequence of tokens. In Audio File Stream Services, a software object of type when
What is Rectangle Paper Help of a piece of paper on which a page is printed. This rectangle is defined in the same coordinate system as the page rectangle . Thus, the pros and cons
What is Hierarchy Patch Crossword In Quartz Composer, the levels in a composition created when macro patches are used. See also macro patch similarities
What is Application Preferred Examples Services in which to open a given document or URL, either through an explicit binding preference set by the user or, in the absence of such how much
What is Manipulation Pixel Encyclopedia Quartz does not provide functions that operate on a pixel-by-pixel basis. Core Image provides support for image processing on a per-pixel how many
What is List Property Information about data, commonly stored in Extensible Markup Language (XML) format. Elements of a property list represent data of certain types, such as compare
What is Button Push Tutorial on it, which the user clicks to perform an instantaneous action, such as saving a document, completing operations defined by a dialog, or why
What is Atom Preview Error An atom of type 'pnot', which can appear in a QuickTime file to contain a movie’s file preview how better
What is Player Answer See music player when
What is Memory Protected Means what See memory protection determines
What is Process Description or program. A process has its own virtual memory space and system resources (including port rights) that are independent of those assigned comparing to
What is Mode Through Pass Definition respect to keyboard-entry, pass-through mode allows users to enter ASCII characters in the context of a 2-byte script, without changing the depends on
What is Expert Platform Explain motherboard that knows the type of platform the system is running on. The Platform Expert serves as the root of the I/O Registry tree which
What is Mode Rendering Profile What is displays an analysis of each rendered frame in a composition; the analysis can help you to optimize performance difference
What is Processor Meaning In Quartz Composer, a patch that processes data at specified intervals or in response to changing input values when
What is Pane Attributes Page Abbreviation A pane in the Page Setup dialog that allows the user to set page format options—paper size, paper orientation, and scaling pros and cons
What is Pixel How to that the graphics hardware can display on the screen. In OpenGL, pixel is made up of all the bits at the location x, y, in all the similarities
What is Panic Help An unrecoverable system failure explicitly triggered by the kernel with a call to panic. Compare kernel crash how much
What is Object Format Page Crossword An opaque data type used by the printing system to store information from the Page Setup dialog, such as paper size and orientation how many
What is Pattern Examples A sequence of drawing operations that Quartz can repeatedly paint to a graphics context compare
What is Identifier Process Encyclopedia See simple statement why
What is Separator Pathname Information about The “/” character that separates folder names in a raw pathname. A raw pathname should be displayed only to expert users or in a help tag how better
What is Source Dispatch Process Tutorial process-related events. A process source calls your custom event handler in response to changes to the process you specify when
What is Alpha Premultiplied Error already multiplied by an alpha value. Premultiplying speeds up the rendering of an image by eliminating an extra multiplication operation determines
What is Termination Phrase Answer Defines when Ink input should be processed by the recognizer comparing to
What is Unit Panner Means what 039;aupn' that distributes a set of input channels, using a spatialization algorithm, to a set of output channels. In the simplest depends on
What is Key Primary Description in an entity that uniquely identifies rows of that entity. For example, the Employee entity can contain an empID attribute that uniquely which
What is Pasteboard Definition data within applications or between applications. The most familiar use for pasteboards is handling copy and paste operations. The difference
What is Panel Taker Picture Explain IKPictureTaker ) that allows users to choose images by browsing the file system or by taking a snapshot with an iSight or other digital when
What is Parameter Positional What is that is identified by the order in which it is listed. In a handler call, positional parameters are enclosed in parentheses and separated pros and cons
What is Identifier Package Meaning Identifies the package within the Installer package database. See also Installer package database similarities
What is Object Parent Abbreviation another script object, called the child, inherits properties and handlers. A parent object may be any object, such as a list or an how much
What is State Play How to One of four states that a DVD can be in during playback: playing at a normal rate, paused, scanning forward, or scanning backward how many
What is Volume Preferred Help The default sound volume for a QuickTime movie compare
What is Name Right Port Crossword port right . Each process has a port right namespace, which maps port right names to their corresponding port rights. A port right name is why
What is Program Examples that can be run to perform some task. Programs need not have a graphical user interface, although graphical applications are also how better
What is Cryptography Key Public Encyclopedia keys in which one key is made public while the other (the private key) is kept secure. Data encrypted with one key must be decrypted with when
What is Plaintext Information about Ordinary, unencrypted data. Compare ciphertext determines
What is Personality Tutorial kinds of devices a driver can support. This information is stored in an XML matching dictionary defined in the information property list comparing to
What is Preset Error A predefined set of parameter values for an audio unit depends on
What is Multitasking Preemptive Answer operating system can interrupt a currently running program in order to run another program, as needed. Compare cooperative multitasking which
What is Product Means what An application or framework produced by Xcode difference
What is Pitch Description attribute that is roughly correlated with frequency. In general, pitch increases as the perceptually-dominant sound frequency increases when
What is Store Pet Definition A sample J2EE application from Sun Microsystems, which showcases the power and flexibility of the J2EE platform pros and cons
What is Packing Explain Converting pixel color components from a buffer into the format needed by an application similarities
What is Description Packet What is stream, metadata that specifies where a packet of audio data starts as well as its size. In Core Audio, a data structure used to represent how much
What is Object Proxy Meaning an object that is specified at runtime. Proxy objects act as stand-ins for objects that are not available at design time. Instead, such how many
What is Rate Preferred Abbreviation The default playback rate for a QuickTime movie compare
What is Panning How to of a monaural signal within a stereo or multichannel (such as surround sound ) sound field. Variations include stereo, SoundField why
What is Directory Product Help The file-system directory that contains a project file, the project’s source code and resources, and the build directory how better
What is Prebinding Crossword program is built, by which the static linker replaces references to external symbols with the addresses of the symbols in the referenced when
What is Attribute Prototype Examples A special type of attribute available in EOModeler to provide a template for creating attributes determines
What is Action Postcompensation Encyclopedia such as addition of kashidas and ligature decomposition, that occurs after glyphs have been repositioned during justification comparing to
What is Pane Information about dialog or other window. Panes usually change as the result of the user clicking a button or choosing an item from a pop-up menu. In some depends on
What is Component Product Tutorial product can have one or more components. The OS X file system contains special locations for several types of components. For example which
What is Name Port Error In Mach, an integer index into a port namespace; a port right is specified with respect to its port name. See also port right difference
What is Placard Answer Typically placards are used in document windows as a way to quickly modify the view of the contents—for example, to change the current page when
What is Reference Product Means what reference that refers to the build system output for a particular target. A product reference lets you view your target’s products in the pros and cons
What is Pio Description data between a device and system memory in which each byte is transferred under control of the host processor. See also DMA similarities
What is View Pages Definition In Xcode, one of the three views provided by the all-in-one layout how much
What is Object Session Printing Explain printing system to store information that’s needed by the page format and print settings objects, such as default page format and print how many

Definitions for Mac OS developers

Apple library, Mac for software engineers.

Apple Printing session object definition pages view explain PIO what is product reference meaning placard abbreviation port name how to product component help pane. OS Mac.

What is PID definition preemption explain premultiplied what is probe meaning for developers.