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Glossary
T
TIO
TTL
two's complement
U
unipolar
V
V
VAC
V
CC
VDC
VI
V
IH
V
IL
V
in
V
OH
V
OL
W
WRT
DAQCard-1200 User Manual
timing input/output
transistor-transistor logic
given a number x expressed in base 2 with n digits to the left of the radix
point, the (base 2) number 2n – x
a signal range that is always positive (for example, 0 to +10 V)
volts
volts, alternating current
positive supply voltage from the PCMCIA bus (usually +5V)
volts, direct current
virtual instrument—(1) a combination of hardware and/or software
elements, typically used with a PC, that has the functionality of a classic
stand-alone instrument (2) a LabVIEW software module (VI), which
consists of a front panel user interface and a block diagram program
volts, input high
volts, input low
volts in
volts, output high
volts, output low
Write—the write signal generated from the parallel port interface circuitry
G-8
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