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Not exactly the same, but I recently gave myself a challenge of making an electrically activated switch using nothing but crap I could find around the house. In my mind I was thinking "how could I make a transistor?" It proved challenging.
Yeah, a computer is very difficult, even with transistors there's a mountain of tech. However, when I was a kid I made a tiny crystal radio with a quartz crystal, wire, and a toilet paper roll. I think that was it. Oh a speaker, that'd be hard without magnets.
The switch/transistor project was actually kind of cool. Don't use Google. Just fool around and try to figure out how you might do it from a few basic physics principles (building an electromagnet was part of it). But maybe I need to get out more.
So a 1 bit computer? I guess the question then is, how many would you need and how much juice to power them. That's the killer I think. Old transistor computers were massive power hogs.
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