[273,2] experiments in terminal serving with DECUS C RSX11M+.
Looking for various timeout tricknology.

Rational.c is the result of this. It gives unechoed timedout input of
a char from keyboard. I never got the multi-terminal server going.
Note that you get 8 bits from a keystroke - beware strange terminal modes.

SET /RPA=TI: is bloody dangerous - beware of it. ie ^C for MCR will fail.
Try SET /EBC=TI: if you need 8 bits. (which will catch ^C but is nicer).
