Why would the power supply on a computer be considered a input device?

Why would the power supply on a computer be considered a input device?

Without the input of power to the computer the computer could not turn on or charge and so it's putting energy into the computer or mobile thus leading to input.
Input devices are mice, keyboards, microphones - something the human inputs near.



The power supply is NOT considered an input device.
Power from the wall comes into the computer via the power supply. Computer doesn't send power out.
it accept an incoming signal(ac wave) and steps it down to DC voltage...a transformer output is then feed to the circuits(CPU, BUS,etc) as Inputs.look at a typical Master/Slave flip/flop...power is an input

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