I've been having fun thinking about computing in the post-apocalypse. The CPU itself isn't so bad. Heck a relay CPU is should be quite doable to build, as evid

I've been having fun thinking about computing in the post-apocalypse. The CPU itself isn't so bad. Heck a relay CPU is should be quite doable to build, as evidenced by the various people that have built them. It's mostly just laborious. The problem is memory. There's a reason for all the seemingly whacky ideas to implement memory back in the early days, like the torsion wire[1] delay line[2] which is pretty much like banging on a taut rope and recording the pulses that arrive at the other end. But it's quite tough to get any real density from what I can tell, without advanced manufacturing. [1]: https://nzeldes.com/HOC/DelayLine.htm https://nzeldes.com/HOC/DelayLine.htm [2]: https://en.wikipedia.org/wiki/Delay-line_memory https://en.wikipedia.org/wiki/Delay-line_memory