non-inplace

non-inplace

Describes an operation that does not occur directly on input data, but instead requires an additional buffer for temporary storage. Opposite of inplace.

noninterlaced

The method of scanning all lines on a display from top to bottom in sequential order at a specific rate per second. Unlike television, which uses an interlaced scanning method, computers typically use noninterlaced monitors.

nonpaged pool

See pool memory.

nonpresent device

A device that was previously installed on a system, but is currently not configured in the system. A nonpresent device does not have a devnode in the device tree and is hidden by default by the Device Manager (see Viewing Hidden Devices).

Also called phantom device.

notional space

A coordinate system font designers use when they design fonts. For example, PostScript fonts are designed in 1000x1000 unit character cells. Before a glyph in a particular font can be rendered on an output device, its notional space coordinates must be first be transformed into device space coordinates. These coordinates must then be transformed into coordinates suitable for the physical device.

Most of the metrics returned in the IFIMETRICS structure are given in terms of notional space coordinates.

Also called design space.

NtDetect

See Advanced RISC Computing.

NTF files

Binary files used for describing the device fonts of Postscript-compatible printers. In Windows 2000 and later, Adobe Font Metrics (AFM) files must be converted to NTF files.

NTFS

A file system, native to NT-based operating systems, that supports file system and file data recovery, extremely large storage media, file-granular compression, and various other features.

NTSC

National Television System Committee of the Electronics Industries Association (EIA). The standards-setting body for television and video in the United States.

NTSC format

A color-television format having 525 scan lines, a field frequency of 60 Hz, a broadcast bandwidth of 4 MHz, a line frequency of 15.75 KHz, a frame frequency of 1/30 of a second, and a color subcarrier frequency of 3.58 MHz.

See also PAL format and SECAM.

NTVDM

The NT-based operating system virtual DOS machine. Also called VDM.

NtXxx Routines

A set of routines used by user-mode components of the operating system to interact with kernel mode. Drivers must not call these routines; instead, drivers can perform the same operations by calling the ZwXxx routines.

null driver

A nonexistent driver. Setup sometimes installs a null driver for a device. For more information, see the topic, Installing a Null Driver.