Digital Equipment DECpc AXP 150 User Information page 112

read-only memory (ROM)
See ROM.
RISC
Reduced instruction set computer. A computer with an
instruction set that is reduced in complexity.
ROM
Read-only memory. A memory whose contents cannot be
modified during the normal use of the system. The system can
use the data contained in a ROM but cannot change it. Compare
with RAM.
SCSI
Small computer system interface. An ANSI-standard interface
for connecting disks and other peripheral devices to computer
systems. See also fast SCSI.
serial port
An external port for serial devices such as terminals and
printers. There are two serial ports on the system, one of which
is the console serial port.
system
A combination of system hardware, software, and peripheral
devices that perform specific processing operations.
system disk
The device on which operating system software resides.
tape drive
A device that contains mechanical components and holds, turns,
reads, and writes on magnetic tape.
terminal
An input/output device that lets you communicate with the
system. Terminals are divided into two categories: video and
hardcopy.
Glossary–10