TOPS-10 Monitor Calls Manual Volume 2 AA-K039D ... - Trailing-Edge

GLOSSARY
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Variable
Refer to programmed operators (Unimplemented User Operations) .
Any entity that can assume any of a given set of values. When
stored in core, a variable can occupy part of a core location,
exactly one core location, or more than one core location.
Vestigial job data area
The first 10 (octal) locations of the high segment used to
contain data for initializing certain locations in the job data
area. These locations are usually 400000-400007 (octal)
inclusive.
Wildcard construction
Word
A technique used to designate a group of files without
enumerating each file separately. The file name, extension, or
project-programmer number in a file specification can be replaced
totally with an asterisk or partially with a question mark to
represent the group of files desired.
An ordered set of bits which occupies one storage location and is
treated by the computer circuits as a unit. The word length of
the DECsystem-10 is 36 bits. This means that it is possible to
store 36 bits of information at each memory address and to
transfer all 36 bits between memory and the CPU at the same time.
Working set
The collection of pages in physical core immediately accessible
to a job. Pages in core, but with the accessiblity bit 6ff are
also included in the working set.
Zero compression
The technique of compressing a core image by eliminating
consecutive blocks of zeros and replacing them with an indication
of the number of words of zeros that were removed.
Zero length module
A module containing symbol definitions but no instruction or data
words (for example, JOBDAT). Note that the word "length" in this
context refers to the program length of the module after loading.
Gloss-40