办公桌上的电源线 What is the purpose of the power line?

The power line is a wire that connects the power source to the electrical equipment in a room. It provides power to the computer, monitor, keyboard, and other devices that are plugged into the outlet.

The purpose of the power line is to provide a consistent source of power to the electrical equipment in a room. This ensures that the equipment can operate properly and that data can be transferred between devices.