View Full Version : Hallock Systems (HSC) CO-1686 8086 Co-Processor for Z80 systems

IBM Portable PC
September 2nd, 2013, 05:58 AM
I've recently acquired the main unit, however I'm hoping to locate:

- any documentation
- boot disks
- Z80 piggyback board (taps the hosts Z80 socket: to a 26 pin header.)

Apparently PC/MSDOS boot disks could be ordered in several formats such as for the Kaypro.


IBM Portable PC
September 3rd, 2013, 01:44 PM
Does anyone have any docs on the 68000 version?

Perhaps a spare Z80 socket adaptor...............

April 26th, 2015, 03:29 AM
for reasons unknown I googled "Hallock Systems" this morning, landed on this forum, and joined. Did you get any responses? I worked for Hallock Systems for about a year after college. Rick Hallock was the founder. He wrote a book on identity theft "Evil Shadows" (???) It's a good read. I do not have any hard documentation. Kevin