cvs commit: src/sys/kern subr_param.c

Mark Linimon linimon at
Mon Nov 8 14:18:26 PST 2004

Indeed, in 1972 I was running demos on a PDP-11/20 where we 'played
the core' via timing loops.  You needed a handy AM radio on top of
the CPU to demonstrate this.  IIRC that one played the intro to
"Light My Fire".  (Of course, since core was non-volatile, it was
fun to start the thing and turn off the power and let the next
user be surprised ...)

A different demo ran the output of the D/A converters for our "advanced"
graphical display into a stereo preamp.  That one played one of the
Bach 2-part inventions.  And yes indeed folks, both of the above
programs were initially written by their creator _by toggling them
in from the front panel_, music data and all.


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