IBM RT PC Problem Determination Manual page 185

A small user input device
mouse.
externally attached to the system unit.
A printing device externally
plotter.
attached with cables to the system unit,
used to print two-dimensional graphs and
charts.
A device that connects the wires of
plug.
an electrical circuit to an electrical
source. The plug is designed to be
inserted into a jack.
A part of the system unit or remote
port.
controller to which cables for external
devices (display stations, terminals,
printers) are attached. The port is an
access point for data entry or exit.
See
POST. power-on self-test.
A light on the operator
power-on light.
panel that indicates that the DC power in
the system unit is okay.
power-on self-test (POST).
diagnostic program activated each time
the system is turned on.
A device externally attached to
printer.
the system unit, used to print system
output on paper.
problem determination.
identifying why the system is not working.
Often this process identifies programs,
equipment, data communications facilities,
or user errors as the source of the
problem.
problem determination procedure. A
prescribed sequence of steps aimed at
recovery from, or circumvention of,
problem conditions.
prompt (n.).
information or operator action.
recovery procedure. (1)
performed by the operator when an error
message appears on the display screen.
Usually, this action permits the program
to continue or permits the operator to run
the next job. (2) The method of returning
the system to the point where a major
system error occurred and running the
recent critical jobs again.
routine.
program causing the system to perform an
operation or a series of related operations.
run.
other machine function to be performed.
service request number.
numbers used by service technicians to
determine the failing area of the system.
An internal
software.
SRN. Service request number.
system.
devices and programs.
The process of
system unit.
contains the processing unit, the disk
drives, and the diskette drives.
system user.
computer system.
A displayed request for
An action
A set of statements in a
To cause a program, utility, or
A group of
Programs.
The computer and its associated
The part of the system that
A person who uses a
Glossary
X-3