IBM System/370 Operator's Reference Manual page 242

Ouiesc:e
Mode: A mode of operation that requires the foreground partition to be
stopped by the operator. The operator does this on the console by issuing the PAUSE
EOJ and STOP commands when requested by Ol TEP.
aT AM Trace: A program that records certain supervisor and 110 activities on tape or
in core·wrap mode.
r
reader: 1. A device that converts information in one form of storage to information in
another form of storage.
2.
A part of the scheduler that reads an input stream into
the system.
ready condition: The condition of a task that is ready to be performed by the central
processing unit.
real address: In VS, the address of a location in real storage.
real address area: The area of virtual storage where virtual addresses are equal
to
real
addresses.
real mode: In DOS/vS, the mode of a program that may not be paged.
real storage: The storage of a System/370 computing system from which the central
processing unit can directly obtain instructions and data, and to which it can directly
return results. Synonymous with processor storage.
real partition: In DOS/VS, a division of the real address area of virtual storage that
may be allocated for programs that are not to be paged, or programs that
contai~
pages that are to be fixed.
nICOrd:
A unit of data.
I1IC<MIfY management support: The facilities that gather information about hardware
reliability and allow retry of operations that fail because of CPU, 1/0 device, or
channel errors. Abbreviated to RMS.
reenterable: The attribute of a set of code
that
allowco
thf?'
~!'!'!e
o:cpy cf the xt v f
code to
be
used concurrently by two or more tasks.
reliability data extractor (ROE): A function that provides hardware reliability data that
is analyzed by IBM.
reIocatabie library: A library of relocatable object modules and lOGS modules required
by various compilers. It allows the user to keep frequently used modules available for
combination with other modules without recompilation.
resource: Any facility of the computing system or operating system required by a job
or task, and including main storage, input/output devices, the central processing unit,
data files, and control and processing programs.
resource manager: Any control program routine responsible for the handling of a
resource.
*
routine: An ordered set of instructions that may have some general or frequent use.
s
scheduler: (See master scheduler and job scheduler.)
Second level Directory (SlD): The table, located in the Supervisor and containing the
highest phase-names found on the corresponding directory tracks of the system core
image.
secondary storage: Auxiliary storage.
_k: Position the access mechanism of a direct-access device at a specified location.
segment: A continuous 64K area of virtual storage, which is allocated to a job or
system task.
Page 7·10