[Coco] Max number of floppy drives with DOS

Robert Gault robert.gault at att.net
Mon May 17 08:51:47 EDT 2021


Unless you modify your disk ROM, the CoCo3 can only work with 4 single sided drives. What normally is done is that the drive table is changed so that D0 and D2 are the front and back sides of your first drive and D1 and D3 are front and back for the second drive.
What you should think about is to get a 5.25 and 3.5 drive. They can be set for 4 singles with Basic and 2 double sided with NitrOS9. For more drives, use emulated drives via Drivewire on your PC. Or use an emulated hard drive on you CoCo3 via a CoCoSDC or similar hardware. Then you can have the equivalent of 256 35track single sided drives plus a very large NitrOS9 drive.

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  On Mon, May 17, 2021 at 8:37 AM, rietveld rietveld<rietveldh at hotmail.com> wrote:   i have 4 single sided drives connected to my coco3 .
If I buy 4 double sided drives instead will HDB DOS see them as DRIVE 0-7 ?
Dont want to spend the money on the drives if i can only use DRIVEs 0-3 with them


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