Computer Science for IGCSE & O level - Hardware (Section 16 - No. 27)
In the street lighting example, what does the ADC do?
Converts digital signals to analog signals.
Controls the brightness of the lights.
Converts analog signals from the sensor to digital signals.
Stores data permanently.
Explanation
ADC (Analog-to-Digital Converter) converts the analog signal from the sensor to a digital signal that the microprocessor can understand.