An “elevator” is a device that is used to move people or goods vertically between different floors in a building. It typically consists of a cab or platform that is suspended by cables and is powered by a motor. People use elevators to quickly and conveniently reach their desired floors instead of taking the stairs, especially in tall buildings. For example, in a large office building, employees and visitors use the elevators to get to their respective offices on different floors. In a hotel, guests use elevators to reach their rooms on upper floors. In a shopping mall, elevators help shoppers move between different levels to access various stores.