Cool. I've been reading about analog computers recently, and here's a little history:

1936: Water integrator, used in USSR until the '80s: https://en.wikipedia.org/wiki/Water_integrator

1940s: Torpedo Data Computer: https://en.wikipedia.org/wiki/Torpedo_Data_Computer

1949: MONIAC, another water integrator: https://en.wikipedia.org/wiki/Phillips_Machine

1960s: Scanimate, of which there are still a couple in use: https://en.wikipedia.org/wiki/Scanimate

Modern day: Slime molds, other biocomputers, and domino computer: https://youtu.be/OpLU__bhu2w

And of course, quantum computers.