National Instruments PCI-5911, User Manual, Page: 43 / 51

Glossary
© National Instruments Corporation G-5 NI PCI-5911 User Manual
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. Instrument drivers are available in several forms, ranging from a
function callable language to a virtual instrument (VI) in LabVIEW.
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
ISA industry standard architecture
K
k kilo—the standard metric prefix for 1,000, or 10
3
, used with units of
measure such as volts, hertz, and meters
kS 1,000 samples
L
LabVIEW
laboratory virtual instrument engineering workbench—a graphical
programming ADE developed by National Instruments
LSB least significant bit
M
m meters
MB megabytes of memory
memory buffer See buffer .
MS million samples
MSB most significant bit