POS or Point Of Sale is the most important area of the Retail business. The point of sale (POS) is the site where a retail deal is accomplished. It is the situation at which a customer makes a payment to the merchant in exchange for goods or after provision of a service. At the point of sale, the merchant would make an invoice for the customer (which may be a cash register printout) or otherwise calculate the amount owed by the customer and provide options for the customer to make payment. After receiving payment, the merchant will also normally issue a receipt for the transaction. Usually the receipt is printed, but it is increasingly being dispensed electronically.
The POS transaction is captured using a variety of devices which include computers, cash registers, optical and bar code scanners, magnetic card readers, or any combination of these devices. Increasingly, POS terminals are also Web-enabled, which makes remote training and operation possible, as well as inventory tracking across geographically-dispersed locations
Here we will see how it is done through GINESYS.