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Glossary
DAQCard-DIO-24 User Manual
G-4
©
National Instruments Corporation
current sourcing
the ability of a DAQ board to supply current for analog or digital output
signals
D
DAQ
data acquisition—(1) collecting and measuring electrical signals from
sensors, transducers, and test probes or fixtures and inputting them to a
computer for processing; (2) collecting and measuring the same kinds
of electrical signals with A/D and/or DIO boards plugged into a
computer, and possibly generating control signals with D/A and/or DIO
boards in the same computer
DATA
data lines
DC
direct current
device
a plug-in data acquisition board, card, or pad that can contain multiple
channels and conversion devices. Plug-in boards, PCMCIA cards, and
devices such as the DAQPad-1200, which connects to your computer
parallel port, are all examples of DAQ devices. SCXI modules are
distinct from devices, with the exception of the SCXI-1200, which is a
hybrid
DGND
digital ground
differential input
an analog input consisting of two terminals, both of which are isolated
from computer ground, whose difference is measured
DIG
digital
digital port
See port
DIO
digital input/output
drivers
software that controls a specific hardware device such as a DAQ board
or a GPIB interface board
E
EEPROM
electrically erasable programmable read-only memory—ROM that can
be erased with an electrical signal and reprogrammed
EISA
extended industry standard architecture
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