Optical Path
The path that the light emitted by the CRT follows through the filter
wheel and lens to the film.
Peripheral Device
A peripheral that can be attached to a SCSI device (e.g., magnetic disk,
printer, optical-disk, or magnetic tape).
Pixel
Abbreviation for picture element. The smallest defined element into
which an image resolves. The term refers to both the smallest defined
segment of a scan line (a unit of width) and to a two dimensional screen
area one pixel wide and one line high.
Power-up Sequence
The series of operations the PCR II goes through when the user turns
the
power
on.
During
this
time,
the
film
recorder:
• Tests its internal systems
• Sets all SCSI functions to the idle state
• Performs memory diagnostics
• Loads default LUT values, brightness tables and brightness levels
• Resets the film recorder
Reset Sequence
A sequence of operations the film recorder goes through when the user
presses the Reset switch.
SCSI
Small Computer System Interface. A standard data communications
interface that allows high-speed transmission of data from one device
to another.
SCSI Device
A host computer adapter or a peripheral controller or an intelligent pe-
ripheral that can be attached to the SCSI bus.
Appendix • A-11
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