National Instruments Measurement Studio D

Glossary

context-sensitive help Help for dialog boxes, the controls in dialog boxes, and keywords in source

code that you can access with the <F1> key or a Help button, or by clicking

the link that appears in the Dynamic Help window in Visual Studio .NET.

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.

DataSocket Technology that simplifies live data exchange between applications and

HTTP, FTP, OPC, logos (Lookout objects) and file servers over the Internet.

It provides one common API to a number of different communication

protocols.

device An instrument or controller you can access as a single entity that controls

or monitors real-world I/O points. A device is often connected to a host

computer through some type of communication network. See also DAQ

device and measurement device.

digital I/O Reading or writing digital representations of data in discrete units

(the binary digits 1 and 0). Digital information is either on or off.