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Electronics
R
Raster (Laser) Plotters
RAM: Random Access Memory
ROM:
Read Only Memory
Read Only Memory (ROM) is a permanent form of memory that is written to
during manufacture. The CPU can read information from a ROM location, but
cannot write information into it. ROM information is non-volatile in that
it does not change when power is removed.
RTC:
Real-Time Clock
The real-time clock (RTC) mechanism is similar to the RTI although with
some software it can easily be used to keep time in hours, minutes, days,
etc.
RTI:
Real-Time Interrupt
The real-time interrupt (RTI) mechanism is useful for generating a
periodic interrupt automatically every x (programmable) amount of time.
This can be useful for executing diagnostics, maintenance routines, and
polling i/o or events.