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Module 2: x86 Architecture, CPU Control, I/O, Memory System Design

20242m

Which of the following is NOT a type of parallel processor architecture?
a) SIMD
b) MIMD
c) SISO
d) Multi-core

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Answer: c) SISO

Explanation:
Standard Flynn + modern parallel architectures:

  • SIMD - Single Instruction Multiple Data - vector/GPU - valid parallel architecture.
  • MIMD - Multiple Instruction Multiple Data - multicore/multiprocessor - valid.
  • Multi-core - multiple cores on one chip - valid parallel processor.
  • SISO - Single Instruction Single Operand is not a standard taxonomy term (Flynn uses SISD - Single Instruction Single Data); SISO is distracter/incorrect.

Hence NOT a parallel processor architecture = SISO.

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