[vcf-midatlantic] PEP Modular Computer

Neil Cherry ncherry at linuxha.com
Tue Feb 9 13:48:45 UTC 2021

On 2/9/21 2:30 AM, Dave McGuire via vcf-midatlantic wrote:
> On 2/6/21 5:52 PM, Neil Cherry wrote:

>> I definitely want this up and running as it's a good example of an industrial micro-
>> computer before the IBM PC became popular. I know it runs OS9 as that's what I had
>> on it and the ROMs also say so. :-) Microware's OS-9 for the 68K became OSK which
>> later became OSK. Microware OS-9 still exists and supports a large number of
>> processors including the one for the Raspberry Pi.
>    Yup, definitely very interesting hardware.  I'll have to keep my eyes open for that stuff.
>    I have no experience with OS-9, but have taken an interest in it over the past few months.  I'm slowly putting together a 
> 6809-based system to run it on.

Please share what you build. Microware's OS-9 was a very interesting OS.
Also Nitros9 Level I & II is available for the 6809 (CoCo, ST2900, SWTPC).

Level I OS-9  (for the 6809, multi-user, multi-process, all sharing 64k)
Level II OS-9 (for the 6809, multi-user, multi-process. each process could have up to 64k, w/MMU)
OS-9 (for the 68k, multi-user/tasking, written in assembly)
OSK (for the 68K, multi-user/tasking, written in C)
OS-9000 (different processors 68K, x86, etc.)

Modern OS9 (different processors 68K, x86, etc.), Still being sold and supported.
They're working on a Raspberry Pi version now.

There was an RTX or RTS for the 6800. I've not seen this and only found out about
it in the last year.

BTW< I think we lost Peter Stark's Star-K stuff. I think I have the HUMBUG source
for the 6801, 6809 and 68K. I wish I had grabbed the rest when I had a chance.

Linux Home Automation         Neil Cherry       ncherry at linuxha.com
http://www.linuxha.com/                         Main site
http://linuxha.blogspot.com/                    My HA Blog
Author of:    	Linux Smart Homes For Dummies

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