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From: antispam@fricas.org (Waldek Hebisch)
Newsgroups: sci.electronics.design
Subject: Re: OT: Linix goes politics
Date: Sun, 27 Oct 2024 12:08:29 -0000 (UTC)
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Don Y <blockedofcourse@foo.invalid> wrote:
> On 10/26/2024 3:58 PM, Waldek Hebisch wrote:
>> Pi Pico is more powerful than the onboard computer.  But there were
>> also mainframes in ground support center.  Pico can perform more integer
>> instructions per second than those mainframes, but has less memory.
>> And mainframes had fast mass storage (drums and a disk farm).
>> Raspberry PI version 1 has more memory and SD-card has more bandwidth
>> than several mainframe disks.  OTOH I would avoid SD-card in mission
>> critical operations, so probably two Raspberries (two for reliablilty,
>> ground support mainframes also run in redundant configuration) with
>> external USB SSD discs...
> 
> How long do you think any of that would RELIABLY operate in a
> supraterrestrial environment?

I do not know.  Standard commercial MCU-s are used in many small
experimental low-orbit statelites, and seem to work, so they may
be enough.  Certainly before lanching people into space one needs
to spend time to test and select stuff that will work well there.

-- 
                              Waldek Hebisch