A vending machine is a self-service device that dispenses snacks, beverages, or other products when a customer inserts money or uses a payment card. These machines are commonly found in public places like schools, offices, and shopping centers, providing quick access to food and drinks without the need for a cashier. Vending machines come in various sizes and types, offering items such as chips, soda, and candy. Some modern machines even sell fresh food or electronics. They are designed for convenience, allowing users to make purchases at any time, day or night, with minimal effort.