Glossary
©NationalInstruments Corporation G-5 NI5620 User Manual
input bias current the current that flowsin to the inputs of a circuit
input impedance the measured resistance and capacitance between the input terminals of a
circuit
instrument driver a set of high-level software functions that controls a specific plug-in DAQ
board.I nstrument driversare available in several forms, ranging from a
function callable language to a virtual instrument (VI) in LabVIEW.
interrupt aco mputer signal indicating that the CPU should suspend its current task
to service adesignated activity
interrupt level the relativepriority at which a device can interrupt
ISA industry standard architecture
L
LabVIEW ag raphical programming language
LSB leastsignificant bit
M
m meters
M (1) Mega,the standard metric pr efixfor 1 million or 10 6,whenusedwith
unitsof measure such as volts and hertz; (2) mega, the prefix for 1,048,576,
or 220, when used with B to quantify data or computer memory
MB megabytes of memory
MITE MXIInterface to Everything—a custom ASIC designed by NI that
implements the PCI businterface. The MITE supports bus mastering for
high-speeddata transfers over the PCI bus.
multiple-record
acquisition
multiple, distinct chunks (or records) of data