Drink machines, also known as vending machines, are automated devices that dispense beverages when a user inserts money or a payment card. They are commonly found in public places like schools, offices, and shopping centers. These machines typically offer a variety of drinks, including soda, water, juice, and sometimes energy drinks. Most drink machines operate using a simple interface, allowing users to select their desired beverage by pressing buttons or touching a screen. Once the payment is made, the machine releases the chosen drink through a slot. Some modern machines also accept mobile payments, making them more convenient for users.