ISRO Electronics & Communication (ECE) 2006 - Question 34

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Topic: Digital Circuits

The function shown in the figure when simplified will yield a result with (A 4-variable K-map showing an irregular checkerboard pattern with 8 ones)

  • A. 2 terms
  • B. 4 terms
  • C. 7 terms
  • D. 16 terms

Answer: C. 7 terms

Explanation: Looking at the K-map provided in the paper, the placement of the 1s does not allow for heavy grouping (most terms cannot be combined into large blocks). Based on standard simplification for the given configuration, the optimal sum-of-products yields a 7-term expression.

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