Parametron
The parametron is a logic circuit element invented by Eiichi Goto in 1954.[1][2] The parametron is essentially a resonant circuit with a nonlinear reactive element which oscillates at half the driving frequency.[2][3] The oscillation can be made to represent a binary digit by the choice between two stationary phases π radians (180 degrees) apart.[2][4]
Parametrons were used in early Japanese computers from 1954 through the early 1960s. A prototype parametron-based computer, the PC-1, was built at the University of Tokyo in 1958 and later recognized as part of the IEEE Milestone for the parametron.[5] Parametrons were used in early Japanese computers due to being reliable and inexpensive but were ultimately surpassed by transistors due to differences in speed.[6]
See also
- Template:Annotated link
- Template:Annotated link
- Template:Annotated link
- Template:Annotated link
- Template:Annotated link
- Template:Annotated link
References
Page Template:Reflist/styles.css has no content.
- ^ Information Processing Society of Japan - Parametron
- ^ a b c Page Module:Citation/CS1/styles.css has no content.Goto, Eiichi (August 1959). "The Parametron, a Digital Computing Element Which Utilizes Parametric Oscillation". Proceedings of the IRE. 47 (8): 1304–1316. doi:10.1109/JRPROC.1959.287195.
- ^ Page Module:Citation/CS1/styles.css has no content."Parametron". The history of computing project 17 March 2010. Retrieved 15 February 2011.
- ^ U.S. Patent and Trademark Office - Class 307, Electrical Transmission or Interconnection Systems - Subclass 402, Parametrons
- ^ Page Module:Citation/CS1/styles.css has no content."Milestones: Parametron, 1954". Engineering and Technology History Wiki. IEEE. Retrieved 19 April 2026.
- ^ Page Module:Citation/CS1/styles.css has no content.Rojas, Rául; Hashagen, Ulf (2002). The First Computers: History and Architectures. Cambridge, Massachusetts: MIT Press. p. 429. ISBN 0-262-68137-4.
Lua error in package.lua at line 80: module 'Module:Authority control/config' not found.
