The design and operation of a cash machine operating system are the subjects of this project. Meals are mostly found in hotels, where transportation and storage are stored, where retail machines serve food. Accepting and assessing the value of a coin entered into a trading machine is a crucial component of the machine. When entering coins or tokens, a series of tests identify the size, weight, electrical properties, and magnetic properties of the coin, and any coin or token that fails any of the tests is rejected. The value of a coin or token is calculated based on the information provided. An electromechanical system is used.