National Instruments Image Acquisition Software User Manual page 63

Glossary
syntax
system RAM
T
transfer rate
TRIG
trigger
trigger control and
mapping circuitry
TTL
U
UV plane
V
V
VCO
VI
video line
NI-IMAQ User Manual
the set of rules to which statements must conform in a particular
programming language
RAM installed on a personal computer and used by the operating system,
as contrasted with onboard RAM
the rate, measured in bytes/s, at which data is moved from source to
destination after software initialization and set up operations; the maximum
rate at which the hardware can operate
trigger signal
any event that causes or starts some form of data capture
circuitry that routes, monitors, and drives the external and RTSI bus trigger
lines; you can configure each of these lines to start or stop acquisition on a
rising or falling edge.
transistor-transistor logic
See YUV.
volts
voltage-controlled oscillator—an oscillator that changes frequency
depending on a control signal; used in a PLL to generate a stable pixel clock
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
a video line consists of a HSYNC, back porch, active pixel region, and a
front porch
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