FPGA: non-sequential programming Lightmatter: matrix multiply via optical interferometers Parametron: coupled oscillator phase logic rapid single flux quantu

FPGA: non-sequential programming Lightmatter: matrix multiply via optical interferometers Parametron: coupled oscillator phase logic rapid single flux quantum logic: high-speed pulse logic asynchronous logic https://en.wikipedia.org/wiki/Unconventional_computing https://en.wikipedia.org/wiki/Unconventional_computing