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Morrow - Disk Jockey Winchester
Hard Disk Controller
This was a brilliantly designed S-100
Hard disk controller board. Doing on one board what others often took 2 boards
to do.
![Morrow HDCA](Winchester HDC.jpg)
The Disk Jockey Winchester Hard Disk
Controller (HDCA), when combined with a Morrow Designs Winchester-type hard disk
drive and a power supply, provided the user with a complete Morrow Designs
Discus M26, M20 or M10 mass storage system- The Discus M26 drive offered 26 MB
of formatted storage capacity; the M20 drive was a 20MB drive, and the M10 was
a 10MB disk drive. The HDCA controller plugged into any S-100 slot of the
motherboard in an S-100 system, and was connected to the drive through a pair of
flat cables. One of the cables carries clock and data information, and the other
carried control and status information.
The controller could accommodate up to
four drives of the same type, so the M26 system could be expanded to a total
capacity of 104 million bytes, the M20 to over 80 million bytes and the M10 to
over 40 million. Morrow Designs supplied the system with CP/M, but also
configured the HDCA to run Micronix, Morrow Designs' multi-user operating
system.
The DIP switch allowed you to set the
boards base port -- normally 50H-53H.
The manual for this board can be
obtained
here.
Morrow S-100 Boards
24K RAM
64K RAM
Disk Jockey FDC
Multi I/O
SuperRAM
SwitchBoard
Z80 Board
Hard Disk Controller
This page was last modified
on
01/08/2011