And I'm also thinking more of a "repository of knowledge" use, not just simple controllers.
TI calculators, microcontrollers, and more:
> I think it's much easier to scavenge parts for PCs. Plus, laptops are way more fixable than you seem to think, with simple soldering. Fans can be kept going for years with grease.
Collapse OS is talking about timelines of a century or more. Non-mechanical computers are the only ones that will last that long without the supporting infrastructure.