National Instruments IMAQ PCI-1409, Руководство пользователя

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Glossary
© National Instruments Corporation G-7 IMAQ PCI/PXI-1409 User Manual
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
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 Lookup 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 lookup table.
M
m Meters.
M (1) Mega, the standard metric prefix for 1 million or 10
6
, when used with
units of measure such as volts and hertz (2) Mega, the prefix for 1,048,576,
or 2
20
, when used with B to quantify data or computer memory.