Date   : Wed, 16 Jan 1991 21:38:57 GMT
From   : hpcc05!col!hpldola!hp-lsd!howardr@hplabs.hpl.hp.com (Howard Rebel)
Subject: Help with Zenith system

       My guess is that what you have are what is known as Heath/Zenith
89 computers.  Two five inch drives are mounted vert. to the right of the
screen.  There should be a fan mounted in the top-right-rear of the case.
This is a 2 MHZ computer but can be modified to run at 4.

This machine was built/designed by Heathkit.  Heathkit  was purchased by 
Zenith which started calling Heath's computers 'Zenith Data Systems.'

These computers ran both CPM and HDOS (Heath-DOS).  The problem you
now face is to determine what type of disk drives you have.  Heath
used one hard sector format and at least two soft sectored formats.

Howard Rebel.