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"The science fiction method is dissection and reconstruction. You look at the world around you, and take it apart into its components. Then you take some of those components, throw them away, and plug in different ones, start it up and see what happens."
- Frederik Pohl

Positronic Brain  
  A computer CPU with the capacity to rival a human brain.  

By exact count, there are seventy-five thousand, two hundred and thirty-four operations necessary for the manufacture of a single positronic brain.
From Reason, by Isaac Asimov.
Published by Astounding S-F in 1941
Additional resources -

Here's another quote:

All that had been done in the mid 20th century on "calculating machines" had been upset by Robertson and his positronic brain paths. The miles of relays and photocells had given way to the spongy globe of platinum iridium about the size of the human brain.

Thanks to Alex Mair for contributing this item.

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Additional resources:
  More Ideas and Technology from Reason
  More Ideas and Technology by Isaac Asimov
  Tech news articles related to Reason
  Tech news articles related to works by Isaac Asimov

Positronic Brain-related news articles:
  - Brain Chip Hardware Neurons And Synapses
  - First Transistor That Mimics Brain Synapse
  - Carbon Nanotube Synapse Circuit Like Human Neuron
  - Human-like Brain For Robots?
  - IBM's Neurosynaptic Computing Chips

Articles related to Artificial Intelligence
DeepMind AI Baffled By Homer Simpson, Needs Human Help
Deep Learning Creates New Faces
Xiaoice AI Now A Poet
Artificial Intelligence Software Predicts Lifespan

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