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Digital ElectronicsShift Registers

Which shift-register configuration is directly suited to transmitting a parallel word over a single serial data line?

  • ASIPO
  • BPISO
  • CDecoder
  • DMagnitude comparator
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Correct Answer: B. PISO
Explanation: A parallel-in serial-out (PISO) register loads a word in parallel and then shifts its bits out serially.
Reference: Standard digital electronics: PISO register
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