![]() ![]() Subsequently the POS system was developed, in which the price of an item of merchandise was displayed on the cash register automatically when the barcode on the item was scanned by an optical sensor, and information on the item was sent to a computer at the same time.Īs the use of barcodes spread, however, their limitations became apparent as well. The invention of barcodes provided a solution to this problem. "Cashiers desperately longed for some way to lighten their burden." Because of this, many cashiers suffered from numbness in the wrist and carpal tunnel syndrome. In the 1960s when Japan entered its high economic growth period, supermarkets selling a wide range of commodities from foodstuff to clothing began to spring up in many neighborhoods.Ĭash registers that were then used at checkout counters in these stores required the price to be keyed in manually. QR Code as a response to the needs of the times
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