"overclocking" meant "no video"
and when was the last time you'd seen a
paper tape reader or teletypewriter hooked up to a CoCo3? ;-)
When I rotate my heand left by about $\pi$/6 radians :-)
I built a paper tape interface catridge for the CoCos. Links to a Trend
reader and a Facit 4070 punch. It's not currenyly cabled up, but it
certainly could be again.
Amd as for a teletype, when I built by tripple serial port for the CoCo
(what's the point of OS-9 without serial ports ;-)), I specifically
included a 1760Hz clock so I could us an ASR33 with it.
However, you are right about the expanded I/O: I was
about to say "Add an
A/D converter" but then I remembered the audio in on a PC sound card. Done.
Hmm.. I wasn't aware that the response of most soundcards went down to
DC. A lot of the things I use an ADC for are very slowly changing signals.
And how many PCs have a 'user port'? That's one thing I would certainly
want to hack in somehow.
-tony