Apple Mac OS developers glossary letter P

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

Definitions for Mac OS developers

Apple library, Mac for software engineers.

Apple Painting definition Print Center explain policy-based mechanizm what is Paper Feed pane meaning postcompensation action abbreviation proxy icon how to panel. OS Mac.

What is Point size definition premultiplied explain projection matrix what is for developers.