We are all familiar with the system of having your bag of fruit or vegetables weighed by a sales assistant, or selecting your package of meat or cheese by the weight related barcode attached to the differing packages.
So how can a barcode created and printed instantly on the spot identify both the item and its correct pricing?
A normal UPC or EAN barcode which is appended to non-weighted items will be unique to its specific product. This barcode therefore, when scanned at the checkout till, will call up the product data and pricing directly from the shop’s inventory system where the data was originally captured. But what if the shop sells the same type of product in a range of weights, such as cheeses, biltong and fruit and vegetables? Naturally you can’t use the same barcode number on a 500g item and its 1kg counterpart! So...
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