Synapse on a Chip

The memristor — the so-called “missing link of electronics” memory technology that can change its resistance in varying levels — has been around on paper for nearly 40 years. However it wasn’t until 2010 that a group at the University of Michigan led by Dr. Wei Lu demonstrated that it can be used to build brain-like computers in a paper just published in Nano Letters.

Webmaster's Commentary: 

All the inaccuracies of an analog computer at the speed of digital circuitry!

Seriously, you can simulate a neuron with present day technology if you realize that a neuron is not a simple wire but a a tiny processor; a "state-machine" with a bus width of however many neurotransmitters it responds to (about 56 for the normal human brain.)

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