A computer that processes analog data is known as an analog computer. Analog computers store information in physical quantities in a continuous format and use measurements to perform computation.

Very well researched and educational article - just by reading and watching the embedded clips I now know how a mechanical computer works and also a bit about fire control. I visited the HMS Belfast ...

It's worth mentioning that naval gun fire accuracy massively improved with the invention of radar. Until about 1938, all range finding used optical coincidence range finders and estimates of target ...