Does a CPU work on AC or DC?

CPU always work on DC supply. CPU supply is connected with SMPS, which converted the AC to stabilize DC and then give it to CPU mains to start functioning. read more

Computer use AC current as it s power source but it convert to DC before entering it. Adapter is during the process. Typical HP adapter I am using is 100-240V, 1.7A, 50-60hz (giving hz means AC) input with 18.5V, 3.5A, 65W output. read more

In contrast, a DC solenoid does not have to have the pole pieces come in contact during each cycle. Rather, if the pole pieces do not make contact, life of the solenoid is extended. Life of an AC solenoid is typically lower than that of a similar DC counterpart. read more