[Coco] Tandy Hard Disk Controller

[Willard Goosey]

>From: "Bruce W. Calkins" <brucecalkins at bellsouth.net>
>Date: Sat, 4 Mar 2006 22:07:05 -0500

>To quote Dr. Goodman, "Old Radio Shack 35- and 15-meg hard drive packages
>have an internal customized WD-1000 controller."
>
>Now, the questions are, is this controller based on a PC-ISA style bus, or a
>SASI/SCSI bus? and what customizations?

The controller is based on the Model III bus. The WD-1000 board was
customized to talk to the 50-pin expansion bus on the Z80-based
TRS-80s, like the Model I, II, III, 4, 12, 16, 6000.

Willard
-- 
Willard Goosey  goosey at sdc.org
Socorro, New Mexico, USA
"I've never been to Contempt!  Isn't that somewhere in New Mexico?"
   --- Yacko