National Instruments IMAQ PCI-1407 User Manual page 43

C
C
cache
CCIR
CMOS
CompactPCI
conversion device
CPU
CSYNC
D
D/A
DAC
DAQ
dB
DC
© National Instruments Corporation
Celsius.
High-speed processor memory that buffers commonly used instructions or
data to increase processing throughput.
Comite Consultatif International des Radiocommunications. A committee
that developed standards for video signals. Also used to describe signals,
boards, and cameras that adhere to the CCIR standards.
Complementary metal-oxide semiconductor.
Refers to the core specification defined by the PCI Industrial Computer
Manufacturer's Group (PICMG).
Device that transforms a signal from one form to another. For example,
analog-to-digital converters (ADCs) for analog input and digital-to-analog
converters (DACs) for analog output.
Central processing unit.
Composite synchronization signal. A combination of the horizontal and
vertical synchronization pulses.
Digital-to-analog.
Digital-to-analog converter. An electronic device, often an integrated
circuit, that converts a digital number into a corresponding analog voltage
or current.
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 or DIO boards plugged into a computer, and
possibly generating control signals with D/A and/or DIO boards in the
same computer.
Decibel. The unit for expressing a logarithmic measure of the ratio of
two signal levels: dB = 20log
Direct current.
V1/V2, for signals in volts.
10
G-3
Glossary
IMAQ PCI/PXI-1407 User Manual