The point of sale (POS) system is a software application that allows a retail store to complete the cash register process, including the ability to print receipts, track inventory, and manage customer data.

​A POS system can range from an inexpensive single-store solution to an enterprise-level system that can handle multiple locations or be integrated with other back-end systems. The most common features include:

​Centralized reporting tools that allow users to track sales trends and inventory levels.

​Inventory management tools that automate reordering processes and prevent overstocking or understocking of goods.

​The ability to create custom discounts for specific products or groups of customers (i.e., senior citizens).