Re: Hardened Pentiums no motherboard of HP 100 8186 + 10 megs

From: Charles Buckley (rijrunner_at_frii.com)
Date: 08/07/04 

Date: Sat, 07 Aug 2004 14:35:21 -0600

boblpetersen wrote:

> I had worked on other systems for course calculation, vehicle
> information, etc. But long term exposure to radiation is to be
> considered a problem. On solution was the reed switch
> electro-mechanical really just a binary calculator just for that
> purpose. Even with a modern system this would still be a good back
> up.
>
> The choice though in the 1990s was the motherboards of a HP 100. I had
> one with a 5 and a 10 Meg flash card. The screen and the keyboard had
> leads that could be extended, with a transistor etc. The over all
> size than was 3 in. by 6 in. with the card in. The placement had long
> been decided by what was know from the book The Space Environment
> (1969), as many gram/cm for as many cm as possible. The place for the
> computer and for sleeping was where the most shielding was.

Actually, off the shelf items will work if you put your effort
into providing rad hardened cases.

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