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Glossary
DAQCard-DIO-24 User Manual
G-2
©
National Instruments Corporation
A
A
amperes
AC
alternating current
ACK
acknowledge input signal
ACKA
acknowledge input signal for port A
ACKB
acknowledge input signal for port B
A/D
analog-to-digital
ADC
analog-to-digital converter—an electronic device, often an integrated
circuit, that converts an analog voltage to a digital number
address
character code that identifies a specific location (or series of locations)
in memory
AI
analog input
AO
analog output
B
b
bit—one binary digit, either 0 or 1
B
byte—eight related bits of data, an eight-bit binary number. Also used
to denote the amount of memory required to store one byte of data
base address
a memory address that serves as the starting address for programmable
registers. All other addresses are located by adding to the base address
BCD
binary-coded decimal
bidirectional
the port can be configured for input or output
bidirectional bus
the port can input and output data without being reconfigured
binary
a number system with a base of 2
Содержание DAQCard-DIO-24
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