A POS terminal, or Point of Sale terminal, is a device used by businesses to process customer transactions. It typically includes hardware like a card reader and a touchscreen, allowing customers to pay using credit or debit cards, mobile wallets, or cash. The terminal connects to a payment processor to securely handle the transaction. In addition to processing payments, a POS terminal can also manage inventory, track sales, and generate reports. This makes it a valuable tool for retailers, restaurants, and other businesses, helping them streamline operations and improve customer service.