While the first computers were mechanical and famously ... In the 1930s, the Russian scientist Vladimir Lukyanov built an analog computer known as the "Water Integrator" or "Lukyanov's Integrator." ...

This analog computer can multiply ... To multiply a number you set the needles on the first two knobs to the numbers on which you are operating. To find the result turn the third knob until ...

The 1945 creation of the first programmable computer, ENIAC, is a good guess. Or maybe we stretch it back to Charles Babbage and Ada Lovelace’s work on the analog Analytical Engine in the 1830s.

The technology behind this invention His was one of the first analog computers built in the Soviet Union. It worked by careful handling of water through a room full of interconnected pipes and pumps.