Computer Science for IGCSE & O level - Boolean Logic (Section 5 - No. 30)
Which of the following statements correctly describes the behavior of a NAND gate?
The output is 1 only when all inputs are 1
The output is 0 only when all inputs are 0
The output is 0 only when all inputs are 1
The output is 1 only when one input is 1
Explication
A NAND gate's output is 0 only when all inputs are 1.