A "Push Button" is a simple mechanical or electronic device that activates a function when pressed. It is commonly found in various applications, such as elevators, remote controls, and computers. When the button is pushed, it completes an electrical circuit, sending a signal to perform a specific action, like turning on a light or starting a machine. Push buttons can vary in design, from basic round shapes to more complex touch-sensitive surfaces. They are often used for their ease of use, allowing users to operate devices quickly and efficiently. This functionality makes them a staple in everyday technology and machinery.