Aspire Faculty ID #15209 · Topic: JAMIA MCA 2017 · Just now
JAMIA MCA 2017

Minimum number of two-input NAND gates used to perform the function of two-input OR gate is

Solution

$A + B = \text{NAND}(\text{NAND}(A,A), \text{NAND}(B,B))$. Hence, $3$ NAND gates required. $\boxed{3}$
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