[Coco] J&M/JDOS Manual

[Gene Heskett]

On Saturday 21 September 2013 02:55:04 Mark J. Blair did opine:

> Hmm, supposedly, the JDOS ROM in my controller won't work with the CoCo
> 3, according to p174 in the May, 1987 issue of The Rainbow. My testing
> so far just consisted of typing "DIR", so I'm off to do some more
> experimenting...

That jdos rom wasn't compatible with anything but itself. trashed disks are 
the order of the day. It would be far more useful in the long view to burn 
hdb-dos into it.  That doesn't expand the disk size or rsdos format at all, 
but can put virtually unlimited groups of 256 virtual floppy images on a 
hard drive thats at least 5x faster than a real floppy.

Each such 'group' of virtual floppies occupies only 82,575,360 bytes on a 
hard drive. I haven't used the first group up yet, but with enough hard 
drive its almost unlimited.

Cheers, Gene
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