A POS System generally includes the following components: POS software, computer, monitor, credit card reader, cash drawer, barcode scanner, and receipt printer. It performs all of the same functions of a cash register, but doesn’t stop there. What truly stands out about a POS System is the work it does during and after the transaction. After updating inventory changes in real time and capturing customer information, a POS System really shines in its ability to contribute to the overall efficiency of a retail store. The point of sale (POS) system is the place where your customer executes the payment for goods or services bought from your company