Re: Latest mac that supported 800k ProDos disks

[Michael Black <et472@ncf.ca>]

On Mon, 3 Sep 2012, J. Vernet wrote:


> No USB Floppy drive will read 800k floppy.
I thought that was the primary issue, hardware.

INitially the Mac drives were single-sided, 400K.  Then double-sided, 
800K. Then a period where they could deal with 800K disks, and 1.44K 
disks, ie "IBM compatible".  Then a period where the drives had the 
hardare for the 800K disks, but apparently failed at the task (though 
perhaps that was sofware issue?  I don't know.)  And then no more ability 
to read 800K.

The ISB floppy drives came too late.  There was no reason to support the 
older format by then, especially not when floppy drives were seen as so 
obsolete that they'd not be included in the Macs.

  Michael