P

A list of colors assigned to various areas on a panel. A user can change the color of these areas.

Physical Device Driver.

PageDirectoryEntry.

Picture element.

In a conceptual schema language, an action conforming to specified rules or constraints that changes a presumably consistent collection of sentences into a consistent one or makes known a consistent one present in the information base or conceptual schema.

Aligning source bits with destination bits. Often required in a Bitblt function move operation where byte blocks are moved on bit boundaries.

A 32-bit byte address giving the actual address in physical storage for a data item.

A system interface that handles hardware interrupts and supports a set of input and output functions.

See named pipe, unnamed pipe.

(1) In computer graphics, the smallest element of a display surface that can be independently assigned color and intensity. (T) . (2) The area of the finest detail that can be reproduced effectively on the recording medium. (3) An element of a raster pattern about which a toned area on a photoconductor can appear.

Programmed I/O.

Picture element.

A curve based on a sequence of lines. The curve is tangential to the end points of the first and last lines, and tangential also to the midpoints of all other lines.

In computer graphics, a sequence of adjoining lines.

To remove an item from the top of a pushdown list. Contrast with push.

To locate and load a quantity of data in anticipation of a request.

A Ring 3 (non-privileged) .EXE program that determines whether a given hardware interface is present on a workstation.

A keyword, interpreted by the DDINSTAL utility, to determine whether to process the device driver profile file, based on the return code from PRESENCECHECK.

A file that describes the physical characteristics of a printer, plotter, or other peripheral device, and is used to convert graphics and text into device-specific data at the time of printing or plotting.

In the Presentation Manager, the part of the spooler that manages the spooling process. It also allows the user to view print queues and to manipulate print jobs.

A method of protection that allows only certain program instructions to be used by certain programs.

Several programs that can be acted upon as a single entity.

A method of program operation that limits or prevents access to certain instructions or areas of storage. Contrast with real mode.

To add an item to the top of a pushdown list. Contrast with pop.