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In which decade was the first solid state integrated circuit demonstrated?

  • A.1950s
  • B.1960s
  • C.1970s
  • D.1980s

Answer: A

It was demonstrated in the 1950s.

Jack Kilby at Texas Instruments built the first working integrated circuit in September 1958, on a sliver of germanium. Robert Noyce at Fairchild produced a silicon version months later, and it was his planar design that the industry adopted.

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