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Glossary
NI PXI/PCI-1411 User Manual G-10 ni.com
V
VCO Voltage-controlled oscillator. An oscillator that changes frequency
depending on a control signal; used in a PLL to generate a stable
pixel clock.
VI Virtual Instrument. (1) A combination of hardware and/or software
elements, typically used with a PC, that has the functionality of a classic
stand-alone instrument (2) A LabVIEW software module (VI), which
consists of a front panel user interface and a block diagram program.
VSYNC Vertical synchronization signal. The synchronization pulse generated at the
beginning of each video field that tells the video monitor when to start a
new field.