Справочник Пользователя для National Instruments 321645c-01

NI-DAQ FRM for PC Compatibles)

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 National Instruments Corporation

Glossary

handle

pointer to a pointer to a block of memory; handles reference arrays and 
strings. An array of strings is a handle to a block of memory containing 
handles to strings.

handshaked digital I/O

a type of digital acquisition/generation where a device or module accepts 
or transfers data after a digital pulse has been received. Also called latched 
digital I/O.

hardware

the physical components of a computer system, such as the circuit boards, 
plug-in boards, chassis, enclosures, peripherals, and cables

hardware triggering

a form of triggering where you set the start time of an acquisition and gather 
data at a known position in time relative to a trigger signal

hex

hexadecimal

Hz

hertz

ID

identification

IDE

integrated development environment

IEEE

Institute of Electrical and Electronics Engineers

instrument driver

a set of high-level software functions that controls a specific GPIB, VXI, 
or RS-232 programmable instrument or a specific plug-in DAQ board. 
Instrument drivers are available in several forms, ranging from a function 
callable language to a virtual instrument (VI) in LabVIEW.

interrupt

a computer signal indicating that the CPU should suspend its current task 
to service a designated activity

interrupt level

the relative priority at which a device can interrupt

I/O

input/output—the transfer of data to/from a computer system involving 
communications channels, operator interface devices, and/or data 
acquisition and control interfaces

IRQ

interrupt request

ISA

Industry Standard Architecture