Before revision: Parametron is a logic circuit element invented by Eiichi Goto in 1954.Information Processing Society of Japan - Parametron The parametron is essentially a resonant circuit with a nonlinear reactive element which oscillates at half the driving frequency.
After revision: 300px|A Fujitsu FACOM 201 parametron computer in the Science Museum of the Tokyo University of ScienceParametron is a logic circuit element invented by Eiichi Goto in 1954.Information Processing Society of Japan - Parametron The parametron is essentially a resonant circuit with a nonlinear reactive element which oscillates at half the driving frequency.