pushing a digital system to be more precise than the physical quantization or to work faster than an analog computer is very difficult. A few resistors and op-amps are cheap and simple.

A thermometer is a simple analog computer. As the temperature varies, the mercury moves correspondingly. A slide rule is another example. Although special-purpose, complex analog computers are ...

Although the tides in the ocean are caused by the motion of the Sun and the Moon, both of which are easy to observe ... that some of the earliest analog computers were built specifically to ...

In the 1930s, the Russian scientist Vladimir Lukyanov built an analog computer known as the "Water Integrator" or "Lukyanov's Integrator." This computer was built to solve partial differential ...