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TCP/IP

Transmission Control Protocol/Internet Protocol. A standard format for 
transferring data in packets from one computer to another. The two parts of 
TCP/IP are TCP, which deals with the construction of data pockets, and IP, 
which routes them from computer to computer.

TestStand

Ready-to-run test executive from National Instruments for organizing, 
controlling, and executing your automated prototype, validation, or 
manufacturing test systems.

thermometer

A control used to input or display numerical data.

UI

User Interface.

uplevel browser

Recent generation Web browser that supports rich client interaction and 
functionality. See also 

vector

1D array.

virtual instrument (VI)

Program in Measurement Studio that models the appearance and function 
of a physical instrument.

VISA

Driver-software architecture developed by National Instruments to unify 
instrumentation software for serial, GPIB, and VXI instruments or 
controllers. It has been accepted as a standard for VXI by the 
VXIplug&play Systems Alliance.

VXI

VME eXtension for Instrumentation. Instrumentation architecture and bus 
based on the VME standard. Used in high-end test applications.

waveform graph

A control that displays two-dimensional data on a Windows Forms or Web 
Forms user interface; displays data that is uniformly spaced in one 
dimension.