Date   : Thu, 28 Oct 1982 10:27:24 EST (Thursday)
From   : Cal Thixton <tj@Okc-Unix>
Subject: Re: Heath 89 & CP/M

Heath 89 systems run an os from Heath called HDOS. The design
and implementation is very nice. It is not perfect, but cp/m
could learn a few things from them. also, there is not a whole
lot of software available for hdos, so i switched my 89 to
Magnolia's cp/m. This was relatively painless and not very expensive.
no more than for other systems. they send you a small kit with
diagrams and instructions on how to switch your system over. 
it took me about an hour or so and it booted up the first time,
amazingly enough. I have heard of some bad things about Magnolia,
but my experience has been very good. oh, this is standard cp/m
2.2. 
                       cal