Bull Micral 500

Pour tout ce qui touche au PC d'IBM et ses nombreux descendants. Attention tout de même, au delà de quelques MHz la discussion devient vite hors sujet.

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schimmi
Messages : 2
Inscription : 22 juin 2022 23:00

Bull Micral 500

Message par schimmi »

Hey there,

I'm a proud owner of a Bull Micral 500 - a MCA (Microchannel) PC, built in France.
Tomáš already documented it on the one and only Microchannel-Platform :)
https://ardent-tool.com/Bull/Micral_500.html

What we're missing is a Setup Disk or a so called "Reference Disc", to configure that thing. It's quite similar to the IBM PS/2 Reference Disks.

Maybe someone here has this Floppy laying around? That would be great. And yes, i already asked the Bull Society, archive.org, zenith (a subsidary of bull back then) archives - to no avail.

And now i'm a bit lost :(

Regards,
Stefan
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fneck
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Inscription : 01 avr. 2007 12:03
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Re: Bull Micral 500

Message par fneck »

Hello Schimi,

The Bull Micral 500 is rather rare computer. Although of French origin, we don't have much information about him.

The subject is close to this one viewtopic.php?f=3&t=12145 (about Micral 200, 500 or 600)
or this other viewtopic.php?t=9769
or this other viewtopic.php?t=12313
whaka
Messages : 49
Inscription : 01 sept. 2021 14:25

Re: Bull Micral 500

Message par whaka »

hello,
you got the one from ebay ? i guess yes as they not appear everyday.

i saw one for a moment, i hesited and even make an offer to the seller but i let down due to what you are facing...
nice machine, but also a nice brick without this unobtainium floppy.

good luck, maybe it'll pop up. who knows :)

i don't know if it's doable, but modifiying a model 70 reference disk is maybe a way ?
as the 500 is mostly a clone of the 70.
schimmi
Messages : 2
Inscription : 22 juin 2022 23:00

Re: Bull Micral 500

Message par schimmi »

Hi there,

you're right, the IBM PS/2 Model 70 is the closest match to the Micral 500, however it's based around a headland chipset and different slot arragngement - and as some (way more technical advanced) people around the ps/2 newsgroup stated - there might be a board ID you have to address.

From what I can tell, someone from the feb-society mentioned, this computer was built in france, however never distributed in the western part of the EU. This might be the reason we cannot find anything about it :(

Yes, it originates from ebay UK. I never thought it's such a problem getting information/configuration files for it, since it is no problem getting setup files or even documentation for older Micrals - so I gave it a try. And yes, it's a brick in it's current state - however a pretty one.

@fneck
Sorry to hear that. I already grazed the forum, but you never get past a point it's mentioned or shown - at least it's mentioned here and thatswhy I thought I ask here :)
Regards,
Stefan
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fneck
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Re: Bull Micral 500

Message par fneck »

@Stefan, if you find other information, or the diskettes for this computer, come back to us to share them.
I would be very happy to have them even if I don't own the machine.
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