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National Instruments Corporation G-3 NI-DAQ FRM for PC Compatibles)
Glossary
buffer temporary storage for acquired or generated data (software)
burst-mode a high-speed data transfer in which the address of the data is sent followed
by back-to-back data words while a physical signal is asserted
bus the group of conductors that interconnect individual circuitry in a computer.
Typically, a bus is the expansion vehicle to which I/O or other devices are
connected. Examples of PC buses are the ISA and PCI bus.
C
CCelsius
CalDAC calibrat ion DAC
cascading process of extending the counting range of a counter chip by connecting to
the next higher counter
channel pin or wire lead to which you apply or from which you read the analog or
digital signal. Analog signals can be single-ended or differential. For digital
signals, you group channels to form ports. Ports usually consist of either
four or eight digital channels.
channel clock the clock controlling the time interval between individual cha nnel sampling
within a scan. Boards with simultaneous sampling do not have this clock.
CI computing index
clock hardware component that controls timing for reading from or writing to
groups
counter/timer a circuit that counts external pulses or clock pulses (timing)
CPU central processing unit
D
D/A digital-to-analog
DAC D/A converter