By prefixing a partspec with a minus sign (
-),
you can cause all
the files except those that match the partspec to be considered
in
the given command.
.
password
- The optional password associated with a filespec. A
password's first character
is
a period ( . ) and it
is
followed by
one to eight alphanumeric characters, the first of which must be
a letter.
PATCH
- A utility that makes minor alterations to disk files.
*PR - The Line Printer device.
RAM
~
Random Access Memory. This type of memory can be
accessed
in
any order, and any byte can be read or written at
any time.
ROM
- Read Only Memory. This type of memory stores information
that will not change. ROM does not require power to maintain its
data.
sector - A contiguous 256-byte block of disk storage. Each sector
has
an
I.D. field which contains its track and sector number. This
allows the hardware to use the proper area of the disk when
reading or writing
to
the disk.
A sector
is
the smallest amount of data the operating system will
read from or write to a disk. Several sectors make up a track.
One or more tracks make up a cylinder.
*81
- The Standard Input device. Programs that read data from this
device normally receive data from the keyboard. You can change
this
to
have data read from a file or another device by issuing a
ROUTE command. This allows a program to accept input from
any device without the need to modify the program.
*80
- The Standard Output Device. Data that
is
output to this
device by a program
is
normally displayed on the screen. You
can change this to have the data written to a file or another
device by issuing a ROUTE command. This allows a program to
perform output to any device without the need to change the
program.
switch
- A parameter with a definite setting, such as ON/OFF or
YES/NO.
token - A variable used
in
JCL.
utility - A program that provides a service to the user. Utilities differ
from library commands
as
they are usually larger programs and
require memory that
is
usually reserved for the user.
word - A 16-bit value which
is
stored
in
two contiguous 8-bit bytes.
A word may be specified
in
hexadecimal format X'nnnn' or
in
decimal format nnnnn where nnnnn
is
a value from
()
to 65535.
A-89
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