DEC 3000 500 Owner's Manual page 288

read-only memory (ROM)
Memory that cannot be modified. The system can use (read) the
data contained in ROM but cannot change it.
Reduced Instruction Set Computer (RISC)
A computer with an instruction set that is reduced in complexity,
but not necessarily in the number of instructions. RISC
architectures typically require more instructions than Complex
Instruction Set Computer (CISC) architectures to perform given
operations, because an individual RISC instruction performs less
work than a CISC instruction.
register
A temporary storage location in hardware logic other than main
memory.
remote
Physically distant from a computer, but linked to a computer by
communication lines. Compare with local.
remote console port
The port that connects a remote access device to a system.
removable-media drive
A drive such as the RRD42, TZK10, TZ30, TLZ06, or RX26 from
which the storage medium is removable.
restore
In software, to recover files or software that were backed up,
copying the material from the backup medium (such as a tape or
diskette) to the medium you normally use.
In hardware, to return the system to an operating condition.
RISC
See Reduced Instruction Set Computer.
ROM
See read-only memory.
Glossary–24