Barcodes are numerical codes that contain data or information about a specific product. Bars of varying lengths and widths are used to encode different letters and numbers. These Barcode Scanners are important for inventory management. For example, a barcode seen on an apparel tag in a retail store will have some black and white spaces with a product number, which a computer detects and scans. It is compared to the data representing this barcode in the computer and aids in the billing process. Every customer has seen a handheld scanner in the hands of a cashier at almost every organised retail establishment. In a store, an employee scans the barcode that is attached to a product, and that adds up quickly to a customer’s order.
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