Computer Science for IGCSE & O level - Hardware (Section 11 - No. 23)
In a central heating system, what does the microprocessor do with the temperature data it receives?
Sends it to the pump.
Compares it to a pre-set value.
Sends it to the gas valve.
Ignores it.
คำอธิบาย
The microprocessor compares the temperature with a pre-set value.