Real Time Clock; Shadow Ram - Epson ActionPC 5000 User Manual

Pentium OverDrive
A sophisticated CPU which incorporates the latest in Pentium
technology, including a 64-bit data path, one 8KB internal cache
for read-only code, a second 8KB internal cache for read-write
data, and the ability to execute instructions in parallel.
Power-on diagnostics
Tests stored in a computer's ROM that the computer runs to
check its internal circuitry, peripheral device configuration, and
operating status each time you turn it on or reset it.
Random Access Memory. The area of the computer's memory
used to run programs and store data while you work. All data
in RAM is erased when you turn off or reset the computer.

Real Time clock

A battery-powered clock inside the computer that tracks the
time and date, even when the computer is turned off.
ROM
Read Only Memory. Memory that can only be read and cannot
be modified. ROM retains its contents even when you turn off
the computer by using power from a backup battery.
Serial
The type of communication that transmits data from a serial
interface to a serial device over a single wire. See also Parallel.

Shadow RAM

The system's ability to copy the contents of the system, video,
and external BIOS ROMs into RAM to speed up processing.
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