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页码 179
Glossary
G-8
ni.com
N
NI-488.2
Driver-level software to control and communicate with National 
Instruments GPIB hardware.
NI-DAQ
Driver-level software to control and communicate with DAQ hardware. 
NI-DAQ is an extensive library of VIs and functions you can call from an 
application development environment (ADE) to program all the features of 
an NI measurement device, such as configuring, acquiring and generating 
data from, and sending data to the device.
NI-DAQmx
The latest NI-DAQ driver with new VIs, functions, and development tools 
for controlling measurement devices. The advantages of NI-DAQmx over 
earlier versions of NI-DAQ include the DAQ Assistant for configuring 
channels and measurement tasks for your device for use in LabVIEW, 
LabWindows/CVI, and Measurement Studio; increased performance such 
as faster single-point analog I/O; and a simpler API for creating DAQ 
applications using fewer functions and VIs than earlier versions of 
NI-DAQ.
NI-IMAQ
Driver-level software to control and communicate with National 
Instruments image acquisition hardware.
numeric edit
A control used to display and edit numeric values.
O
OCX
OLE Control eXtension. Another name for ActiveX controls, reflected by 
the 
.ocx
 file extension of ActiveX control files.
OLE
Object Linking and Embedding. See also 
.
OPC
OLE for Process Control. An industry standard based on ActiveX and 
COM technologies that enables you to create a single client application 
that can communicate with disparate devices. Refer to 
www.opcfoundation.org
 for more information.
oscilloscope
Measurement instrument widely used in high-speed testing applications, 
such as telecommunication physical layer testing, video testing, and 
high-speed digital design verification.