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Glossary
© National Instruments Corporation G-3 Measurement Studio User Manual
coercion Automatic conversion that Measurement Studio controls perform to change
the numeric representation of a data element.
COM Component Object Model. Microsoft specification for architecting and
developing reusable software components.
complex graph A control that displays a
ComplexDouble data type; the ComplexDouble
data type represents a complex number of type
Double that is composed of
a real part and an imaginary part.
context-sensitive help Help for dialog boxes, the controls in dialog boxes, and keywords in source
code that you can access with the key or a Help button, or by clicking the
link that appears in the Dynamic Help window in Visual Studio.
control 1. ActiveX control. See ActiveX control.
2. Object for entering, displaying, or manipulating data on a user interface.
counter/timer I/O Reading or writing data based on high-precision timing through a counter
or timer. By combining a counter with a highly accurate clock, you can
create a wide variety of timing and counting applications, such as
monitoring and analyzing digital waveforms and generating complex
square waves.
cursor Flashing rectangle that shows where you may enter text on the screen. If
you have a mouse installed, there is a rectangular mouse cursor, or pointer.
cursor label Text object used to display X and Y coordinates that a cursor crosshair
points to on a graph.
D
DAQ Data acquisition. Process of acquiring data, typically from A/D or digital
input plug-in boards.
DAQ Assistant A graphical interface for configuring measurement tasks, channels, and
scales.
DAQ device A device that acquires or generates data and can contain multiple channels
and conversion devices. DAQ devices include plug-in devices, PCMCIA
cards, and DAQPad devices, which connect to a computer USB or 1394
(FireWire
®
) port. SCXI modules are considered DAQ devices.