System Startup, Configuration, and Shutdown Reference Manual (32650-90907)

Glossary
private volumes
Glossary
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private volumes MPE V/E removable disk volumes
that are not included in the system I/O configuration
table and, therefore, must be brought online with an
explicit LMOUNT command. To access a private
volume, a user’s logon group and account must be
assigned to a specific volume set with the VS
parameter of the ALTGROUP and ALTACCT commands.
Private volumes are nonsystem domain devices.
Equivalent to MPE/iX mountable or nonsystem
volumes.
privileged mode capability (PM capability) A
capability assigned to accounts, groups, or users
allowing unrestricted memory access, access to
privileged CPU instructions, and the ability to call
privileged procedures.
process The unique execution of a program or
procedure by a particular user at a particular time.
If several users execute the same program, each is a
separate process. Similarly, if the same user runs
several programs, each execution is also considered
a distinct process.
process handling capability (PH capability) A
capability optionally assigned to accounts, groups,
and users allowing a currently executing process to
create other processes. PH capability also allows
process suspension, interprocess communication,
and process deletion. Since the proliferation of
processes results in heavy system resource usage,
PH capability is typically restricted to only a few
users.
process identification number (PIN) A number
assigned to a process by MPE when the process is
created. It is used internally by MPE (in the process
control block (PCB) table) and during requests for
system resources at the console (when the operator
responds to requests by referencing the PIN in the
REPLY command).
processor dependent code (PDC) An MPE/iX
hardware routine to read and initialize the I/O paths
used for booting or rebooting the system.
program A sequence of instructions that tells the
computer how to perform a specific task.
programmatic sessions capability (PS
capability) A capability allowing a user to execute
the STARTSESS command and to call the STARTSESS
and ABORTSESS intrinsics.
prompt The character(s) displayed at the terminal
screen indicating that the system is ready for a
command. The default MPE command interpreter’s
prompt is a colon (:). Other subsystems have
different prompts.
PUBgroup A group created when an account is
created whose files are usually accessible to all users
within the account.
PUB.SYS The public group of the system account.
PUB.SYS is the group in which programs and
applications available to all users of the system
reside.
quiet mode A session mode in which messages sent
from other jobs or sessions to a terminal are not
displayed. Users control quiet mode with the SETMSG
command. To determine who is running quietly,
execute the SHOWJOB command. Those sessions not
receiving messages are indicated by the word QUIET
in the third column of the listing. A WARN message
from the system console overrides quiet mode, and
should be used for all critical communication, such
as informing the user of an impending system
shutdown.
remote access Communication with a computer
from a physically separate location.
remote mode A mode in which a terminal
transmits and receives data from a remote (or host)
computer.
remote node A node that is not physically located
where you are and which you communicate with via
data communication.
remote session A session initiated from an area
physically separated from the computer.
remote system A computer system physically
separated from other computer systems.
remote system console A terminal which provides
remote access to the SPU as a system console or
terminal session.
remote terminal A terminal that is indirectly
connected to the computer, using a modem and
telephone hook up.