The official business definition of PoS (Point of Sale) is a retail system used to process payments for goods and services. It is a combination of hardware and software that allows customers to make payments with a credit card, debit card, or other payment method. PoS systems are typically used in retail stores, restaurants, and other businesses that accept payments from customers. They provide a convenient way for customers to make payments quickly and securely. PoS systems also provide businesses with valuable data and insights into customer behavior, which can be used to improve customer service and increase sales. PoS systems are an essential part of any modern business, and they are becoming increasingly popular as more businesses adopt them.