On Thu, Feb 12, 2015 at 4:18 PM, Rich Alderson
<RichA at livingcomputermuseum.org> wrote:
  I don't believe that Stewart ever did anything
with SCSI disks.  When I
 spoke to some of the CompuServe alumni last year, they mentioned that
 they had created the SCSI interface for their SC-40 boxes, and did all
 the monitor development work for it. 
Thanks for the explanation. I had been under the misimpression that
SCSI disks were standard on the SC-40, and that the microcode emulated
Massbus drives.
Eric