While the first computers were ... a different kind of computer – one that ran on water. In the 1930s, the Russian scientist Vladimir Lukyanov built an analog computer known as the "Water ...

When I was young the first “computer” I ever owned was an analog computer built from a kit. It had a sloped plastic case which had three knobs with large numerical scales around them and a ...

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 ...