Computer Science for IGCSE & O level - Boolean Logic (Section 7 - No. 37)
In a digital circuit, a NOT gate will change the state of a signal. What describes the state of a signal?
The specific color of the signal.
The voltage level of the signal.
The frequency of the signal.
The time duration of the signal.
Giải thích
In digital logic, signal levels are represented by voltage. A NOT gate inverts the voltage state, such as from high to low, or vice versa.