V1/man/man4/tty.4

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        11/3/71                                                  /DEV/TTY (IV)


NAME              tty -- console typewriter

SYNOPSIS

DESCRIPTION       tty (as distinct from tty0 ..., tty5) refers to the
                  console typewriter hard--wired to the PDP--11. Most of the
                  time it is turned off and so has little general use.

                  Generally, the disciplines involved in dealing with tty
                  are similar to those for tty0 ... and the appropriate
                  section should be consulted. The following differences are
                  salient:

                  The system calls stty and gtty   do not apply to this
                  device. It cannot be placed in   raw mode; on input, upper
                  case letters are always mapped   into lower case letters; a
                  carriage return is echoed when   a line--feed is typed.

                  The quit character is not FS (as with tty0...) but is
                  generated by the key labelled "alt mode".

                  By appropriate console switch settings, it is possible to
                  cause UNIX to come up as a single--user system with I/O on
                  this device.

FILES

SEE ALSO          /dev/tty0, ...; init

DIAGNOSTICS

BUGS

OWNER             ken, dmr