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Module 1: Functional Block of computer and Data representaion

20232m

Which of the following has no practical usage?
(i) SISD
(ii) SIMD
(iii) MISD
(iv) MIMD

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Answer: (iii) MISD

Explanation (Flynn's taxonomy):

  • SISD - Single Instruction Single Data - standard uni-processor.
  • SIMD - Single Instruction Multiple Data - GPUs, vector processors.
  • MIMD - Multiple Instruction Multiple Data - multicore/multiprocessor.
  • MISD - Multiple Instruction Single Data - several instructions on single data stream - theoretically defined but has no practical/commercial realization; hence considered useless category.

Duplicate of Q31_2.

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