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Glossary
©
National Instruments Corporation
G-9
PCI/PXI-1408 and NI-IMAQ for Win95/NT
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
MB
megabytes 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.
NVRAM
nonvolatile RAM—RAM that is not erased when a device loses
power or is turned off