National Instruments PCI-1405 User Manual page 26

Glossary
interlaced
interrupt
L
luma
M
MTBF
N
NI-IMAQ
NTSC
NVRAM
P
PAL
PCI
pixel
NI PCI-1405 User Manual
A video frame composed of two interleaved fields. The number of lines in
a field are half the number of lines in an interlaced frame.
A computer signal indicating that the CPU should suspend its current task
to service a designated activity.
The brightness information in the video picture. The luma signal amplitude
varies in proportion to the brightness of the video signal and corresponds
exactly to the monochrome picture.
Mean time between failure.
Driver software for National Instruments hardware.
National Television Standards Committee. The committee that developed
the color video standard used primarily in North America, which uses
525 lines per frame. See also PAL.
Nonvolatile RAM. RAM that is not erased when a device loses power or is
turned off.
Phase Alternation Line. One of the European video color standards; uses
625 lines per frame. See also NTSC.
Peripheral Component Interconnect. A high-performance expansion bus
architecture originally developed by Intel to replace ISA and EISA. PCI
offers a theoretical maximum transfer rate of 132 Mbytes/s.
Picture element. The smallest division that makes up the video scan line;
for display on a computer monitor, a pixel's optimum dimension is square
(aspect ratio of 1:1, or the width equal to the height).
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