A Point of Sale (POS) system is a combination of hardware and software that allows businesses to complete sales transactions. It typically includes a cash register, a computer, and a payment processing device. When a customer makes a purchase, the POS system calculates the total amount, processes payments, and generates receipts. In addition to handling sales, a POS system can also track inventory, manage customer data, and provide sales reports. This helps businesses streamline operations and make informed decisions. Common examples of POS systems include those used in retail stores, restaurants, and service providers.