V10/man/adm/man4/console.4

.TH CONSOLE 4 
.CT 1 sa_nonmortals
.SH NAME
console \- VAX console interface
.SH DESCRIPTION
.PP
The console terminal is either in
program mode
(connected to the program running in the VAX)
or in console mode
(connected to the console interpreter,
which prompts with
.LR >>> ).
On most VAXes,
.RB control- p
switches to console mode.
If the VAX CPU is still running,
.L "SET TERM PROG"
returns to program mode.
If the CPU is halted,
.L "C"
restarts it
and connects to the VAX.
Hitting the break key
in either mode
may halt the console processor
and produce an
.L @
prompt;
hit
.L P
to escape.
.PP
On an 11/750,
switching to console mode
always halts the VAX;
only
.L C
will escape.
.RB Control- d
while in console mode
may induce micro-debugging mode,
where the prompt is
.LR RDM> .
Type
.L RET
to return to console mode.
.PP
On a MicroVAX,
the break key (only) halts the VAX and switches to console mode.
.PP
All these modes are implemented by the VAX hardware.
To the operating system,
the console looks like an ordinary terminal
as described in
.IR tty (4),
except that the speed is fixed in the hardware.
.SH FILES
.F /dev/console
.SH "SEE ALSO"
.IR tty (4),
.IR ttyld (4), 
.IR reboot (8)