Switch

The words for the switch are interpreted as on and off. It also refers to an electronic component that can open a circuit, interrupt current, or make it flow to other circuits. The most common switch is an electromechanical device operated by a human, which has one or several electronic contacts. The "closed" of the contact means that the electronic contact is conductive and current is allowed to flow; the "open" of the switch means that the electronic contact is not conductive and forms an open circuit, and current is not allowed to flow.