Self-checkout is a system that allows customers to scan and pay for their items without the assistance of a cashier. Typically found in grocery stores and retail shops, these machines enable shoppers to manage their purchases independently. Users scan barcodes on products, place them in bags, and complete the transaction using a payment method like cash, credit, or debit cards. This technology aims to reduce wait times and improve efficiency in stores. Self-checkout stations often include touch screens for easy navigation and may have weight sensors to ensure that items are correctly scanned and bagged.