Non-interlaced: Describes an image refresh method in which the
complete image is generated as a single field without skipping lines.
A non-interlaced image (most computer monitors) flickers much less
than an interlaced image (most TVs).
NTSC: National Television Standards Committee, and the color TV
standard created by them in 1953. NTSC video has 525 lines per
frame and 60 image fields per second. It is used in North and Central
America, Japan and other countries. PAL, SECAM
PAL: “Phase Alternation Line”, a color TV standard developed in
Germany and used throughout most of Europe. PAL video has 625
lines per frame and 50 image fields per second. NTSC, SECAM
Parallel port: Parallel port data is transmitted via an 8-bit data line.
This means that eight bits (one byte) can be transmitted at
once. This kind of transmission is much faster than serial
transmission, but is not appropriate for long-distance connections.
Parallel ports are often named “LPTn”, where n is a number (e.g.
“LPT1”). Serial port
Pixel: The smallest element of a monitor image. The word is an ab-
breviation of “picture element”.
Port: Electrical transfer point for the transmission of audio, video,
control or other data between two devices. Serial port, Parallel
port
Primary colors: The colors that are the basis of the RGB color
model: red, green, and blue. It is possible to create most other colors
on a computer screen by varying the blend of these primaries.
QSIF: Quarter Standard Image Format. An MPEG-1 format
specifying a resolution of 176 x 144 under PAL and 176 x 120 under
NTSC. MPEG, SIF
Quantization: One part of the JPEG image data compression
strategy. Relevant details are represented precisely, while details that
are less relevant for the human eye are represented with less
precision.
