User`s guide

QNA
Q22–bus Ethernet controller module.
RAM
Random access memory. A read/write memory device.
RAP
Register address port.
RIP
Restart In Progress flag in CPMBX<3>.
ROM
Read-only memory. A memory device that cannot be altered during the normal
use of the computer.
RPB
Restart parameter block.
SCB
System Control Block. A data structure pointed to by PR$_SCBB. It contains a
list of longword exception and interrupt vectors.
SCSI
Small computer system interface. An interface designed for connecting disks
and other peripheral devices to computer systems. SCSI is defined by an
American National Standards Institute (ANSI) standard.
SDD
Symptom-Directed Diagnosis. Online analysis of nonfatal system errors in
order to locate potential system fatal errors before they occur.
SGEC
Second Generation Ethernet Chip.
SHAC
Single Host Adapter Chip.
Glossary–7