Define computer? Before plotters or oscilloscopes, there were harmonic oscillators which could perform Fourier transforms and the reverse operation and print t

Define computer? Before plotters or oscilloscopes, there were harmonic oscillators which could perform Fourier transforms and the reverse operation and print the result on a piece of paper. It's a vector device too, albeit a mechanical one, not digital or even electronic. https://www.youtube.com/playlist?list=PL0INsTTU1k2UYO9Mck-i5HNqGNW5AeEwq https://www.youtube.com/playlist?list=PL0INsTTU1k2UYO9Mck-i5...