IBM 6360

operator message. A message from the
operating system or a problem program
directing the, operator to perform, ~a
specific function or .informing the
operator of specific conditions within
the system, such as an error function.
p
PDD. Problem D.etermination· Diskette.
problem' determination. The · process
of identifying the source of a problem
for example, a machine failure.
Problem Determination Diskette. The
diskette on which the automated and
semi-automated problem determination
tests are stored.
Problem Determi nation Guide. The
manual used by the customer when exe-
cuting Problem Determination Proce-
dures.
problem determination procedures ~ A
prescribed sequence of steps aimed at
recovery from, or· circumvention of
problem conditions.
process. (ISO) A course
occurring according to an
purpose or effect.
of events
intended
program
which the
stored.
diskette. The
IBM Licensed
diskette
Program
on
is
prompt. Information on the display
screen that indicates a required
action or provides step by step proce-
dures.
Q
queue. A' list· formed, 'by items in: 'a
system waiting for service; for exam-
ple, tasks to be performed or messages
waiting to be transmitted.:
R
RAM. Random Access Memory
Random Access Memory (RAM) • A
portion of the memory card that holds
the customer application program' that
is being executed and • temporarily
stores the data records as they are.
raster. A predetermined pattern of
scanning lines· that provides ' uniform
coverage of a display space.
Resident Non-Automatic Diagnostics
(RNA) • Diagnostics contained in the
system electronics that do not run
during BAT.
reverse video. See VIDEO REVERSED
CHARACTER.
RNA. Resident Non-Automatic Diag-
nostics.
ROS. Read Only Storage.
s
scale line. The line on the display
that shows the margins, temporary left
margin, tabs, center point, and the
cursor position currently in effect.
scroll. To move text
through the display.
vertically
X-4 IBM Displaywriter Product Support Manual