[Coco] coco serial port

[Bruce W. Calkins]

By real serial port are you referring to a parallel printer port?

A: There was a mod that involved adding another 6821 to the CoCo for a 
parallel printer port.
B: The Cooking with CoCo series had a hardware parallel port in an add on 
card.
C: There were a few disk drive controllers that had parallel printer ports.
D: There were a couple serial to parallel converters.
E: There may have been a few other attempts that I missed.

FWIW; the printer port on the CoCo is serial.  The voltages however are not 
RS-232 compliant.

Bruce W.

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----- Original Message ----- 
From: "Douglas Bell"

> One thing led to another and then he told me about a hardware
> mod the made to allow the coco to have a real serial port.
>
> Any response will be forwarded to him till he joins.
>
> Douglas Bell