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National Instruments NI PCI-5911 User Manual

Page 43

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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