24 Aug
2012
24 Aug
'12
9:50 p.m.
On 8/24/12 6:18 PM, Robert Stek wrote:
In particular I would point out the Morrow Decision 1.
It's
DJ-DMA floppy controller could handle 8" SSSD thru DSDD, and both
soft-sectored and hard-sectored (NorthStar) 5.25" formats and a separate
hard drive controller was also available of course. Later variations even
had a switching power supply.
The Morrow Disk controllers are quite clever designs. I've tried to collect
as much information on them as I could find in the stuff that was donated to
CHM by his sons, and from the stuff Dave had and put it up on bitsavers. One
of the reasons the hard disk Microdecision was so inexpensive at the time was
because of the low cost of the combination hard and floppy disk controller.