National Instruments IMAQ PCI-1409, Руководство пользователя

Страница: 47 / 55

Glossary
IMAQ PCI/PXI-1409 User Manual G-8 ni.com
MB Megabyte of memory.
Mbytes/s A unit for data transfer that means 1 million or 10
6
bytes/s.
memory buffer See buffer .
memory window Continuous blocks of memory that can be accessed quickly by changing
addresses on the local processor.
MSB Most significant bit.
MTBF Mean time between failure.
mux Multiplexer. A switching device with multiple inputs that selectively
connects one of its inputs to its output.
N
NI-IMAQ Driver software for National Instruments IMAQ hardware.
noninterlaced A video frame where all the lines are scanned sequentially, instead of
divided into two frames as in an interlaced video frame.
NTSC 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 .
number of planes
(in an image) The number of arrays of pixels that compose the image. A gray-level or
pseudo-color image is composed of one plane, while an RGB image is
composed of three planes (one for the red component, one for the blue,
and one for the green).
NVRAM Nonvolatile RAM. RAM that is not erased when a device loses power or is
turned off.
O
operating system Base-level software that controls a computer, runs programs, interacts with
users, and communicates with installed hardware or peripheral devices.