Computer Science for IGCSE & O level - Boolean Logic (Section 10 - No. 7)

Which of the following statements correctly describes a NOR gate?

Outputs HIGH only if all inputs are HIGH

Outputs LOW only if all inputs are LOW

Outputs HIGH only if all inputs are LOW.

Outputs HIGH if at least one input is HIGH

The output of a NOR gate is HIGH (1) only when all inputs are LOW (0).