parametron
Sign in to savethumb|300px|A Fujitsu FACOM 201 parametron computer in the Science Museum of the Tokyo University of Science#Museum and other facilities|Tokyo University of Science
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thumb|300px|A Fujitsu FACOM 201 parametron computer in the Science Museum of the Tokyo University of Science#Museum and other facilities|Tokyo University of Science
The parametron is a logic circuit element invented by Eiichi Goto in 1954. The parametron is essentially a resonant circuit with a nonlinear reactive element which oscillates at half the driving frequency. The oscillation can be made to represent a binary digit by the choice between two stationary phases π radians (180 degrees) apart.
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