It is to allow your computer to run without having to keep it charging right next to a socket all day
The main purpose of a power supply is to distribute the right amount of power to all the components of a computer.
The PC power supply box's function is to supply the computer with power. Without the PC power supply box, the computer would not be able to turn on and off.
The function of the power supply is to convert wall current to the correct current for the computer and distribute power to all the internal computer components.
If it is a computer power supply it is the box that gives the computer its power from the outlet.
A PSU in a system unit is the power supply unit. It provides well-regulated power for the computer and its peripherals.
The "power supply" supplies power to a computer. A computer's power supply is a "switchmode power supply" responsible for converting the AC voltage from the wall into several DC output voltages.
The job of a computer power supply is to give power to the computer even when it doesn't have any power. It is normally your adapter that comes with the computer.
When your computer will not power on. When the cooling fan of the power supply has failed. When the amount of hardware in use in your case exceeds the power capability of your power supply.
The power supply makes the computer run, without any type of power supply it would be impossible to run a computer. The mains power supply for a laptop and the power supply unit of a desk top, both convert the high AC voltage from the mains power and convert it to low voltage DC, for the electronics of a computer to use.
In order to supply power supply to your computer you would need an outlet plug near your computer. Then you can plug your computer into that and necessarily, use an extension.
computer
Its function is to supply electrical power via a plug that is plugged into it to supply an appliance.
A computer power supply takes the AC power coming from a wall socket, and then converts it into lower-voltage DC to power all the components inside. Almost every component of a computer will connect directly to the power supply, with the exception of smaller parts such as fans, which can pull power through the motherboard.