Another interesting mechanical computer, the Zuse Z1, apparently ran at 1 Hz. "The first freely programmable computer in the world which used Boolean logic and

Another interesting mechanical computer, the Zuse Z1, apparently ran at 1 Hz. "The first freely programmable computer in the world which used Boolean logic and binary floating-point numbers" https://en.m.wikipedia.org/wiki/Z1_(computer) https://en.m.wikipedia.org/wiki/Z1_(computer)