Prices to pay for old computers...

From: Pete Turnbull <>
Date: Sat May 23 15:24:30 1998

On May 22, 19:52, Russ/Alice Blakeman wrote:
> My understanding of Commode-Ore is that there is a chip within the
> interface that allows the pooter to talk to the cassette drive.

Not quite; the C2N decks have TTL-level in/out and a motor control line,
all on a funny connector. The other three connections are +5V, ground, and
"switch", which is a contact that senses when the PLAY key is pressed.
 They're controlled (at least in a PET) by part of a standard 6520 PIA
(Commodore's copy of a 6820).

Pete						Peter Turnbull
						Dept. of Computer Science
						University of York
Received on Sat May 23 1998 - 15:24:30 BST

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