Seems as if one memristor can do it: http://spectrum.ieee.org/semiconductors/memory/sixstate-memristor-opens-door-to-weird-computing http://spectrum.ieee.org/s

Seems as if one memristor can do it: http://spectrum.ieee.org/semiconductors/memory/sixstate-memristor-opens-door-to-weird-computing http://spectrum.ieee.org/semiconductors/memory/sixstate-memr...