Silicon Brain


Researchers have built a chip with the equivalent of 200,000 neurons and 50 million synapses in an effort to mimic a human brain in silicon.

Although the chip has a fraction of the number of neurons or connections found in a brain, its design allows it to be scaled up, says Karlheinz Meier, a physicist at Heidelberg University, in Germany, who has coordinated the Fast Analog Computing with Emergent Transient States project, or FACETS. A neuron circuit typically consists of about 100 components, while a synapse requires only about 20. However, because there are so much more of them, the synapses take up most of the space on the wafer, says Karlheinz.

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Dennis said on April 4, 2009 at 7:17 AM

Do we want such a brain to scale up as much as our brain. It will only evolve in causing credit crisis, foreclosures and loss of jobs.
Maybe not being so smart may be to it’s advantage.

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