Unformatted text preview: output? Cashier uses Barcode scanner and keyboard to input the product code, quantity and payment method (1) After the system has received the product code, the cashier's computer screen will display the product code, price and discounted value, if any. (2) After receiving the payment (either by cash or by credit card) from the customer, the system will automatically update the sales and inventory data into the POS system. The receipt will be automatically printed and the cashier will give the receipt to the customers for confirmation. When does the system need to receive the input, do the processing and deliver the output? Whenever the customer wants to purchase products. Whenever the cashier inputs the product code to process the sales transaction. Whenever a sales transaction is completed, a receipt will be printed for confirmation. Where does the system obtain the input, do the processing and deliver the output? Cashier counter (Barcode scanner and keyboard)....
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- Spring '10
- Point of sale, Input/output, product code