Glossary
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National Instruments Corporation
G-7
interrupt
A computer signal indicating that the CPU should suspend its current task
to service a designated activity.
interrupt level
The relative priority at which a device can interrupt.
IRQ
Interrupt request. See interrupt.
K
k
Kilo. The standard metric prefix for 1,000, or 10
3
, used with units of
measure such as volts, hertz, and meters.
K
Kilo. The prefix for 1,024, or 2
10
, used with B in quantifying data or
computer memory.
kbytes/s
A unit for data transfer that means 1,000 or 10
3
bytes/s.
Kword
1,024 words of memory.
L
library
A file containing compiled object modules, each comprised of one of more
functions, that can be linked to other object modules that make use of these
functions.
line count
The total number of horizontal lines in the picture.
LSB
Least significant bit.
luma
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.
luminance
See luma.
LUT
Look-up table. Table containing values used to transform the gray-level
values of an image. For each gray-level value in the image, the
corresponding new value is obtained from the look-up table.