[Coco] Maximum CoCo Drives (was: Re: Posted this pic for retro innovations)
go4retro at go4retro.com
Wed Jan 22 13:52:36 EST 2020
On 1/22/2020 12:41 PM, rietveld rietveld wrote:
> Let's turn this back into a coco topic
> is 4 the maximum number of physical drives a coco can have, or has someone ever patched a DOS to allow for the use of more drives?
Others can chime in, but the FDC has 3 drive select lines. As such, I
would assume one could put a 3-8 decoder on those lines, and, with
requisite changes to the DOS, use up to 7 drives (leaving 1 selection
for "no drive selected"). I think I saw an advertisement in Rainbow for
something that did just this. Of course, even at 3 drives per
interface, in an MPI, isn't that 12 drives?
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