Which technology, first used commercially in 1974 at an Ohio supermarket, revolutionized retail inventory management by automating product identification?

Before modern retail inventory systems, merchants faced significant challenges tracking their stock. In the 1970s, a revolutionary technology transformed retail forever by allowing automated inventory tracking and drastically reducing human error. This invention not only changed how stores managed products but fundamentally altered supply chains worldwide. Test your knowledge about this pivotal moment in retail history that bridged traditional commerce with the digital age.

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Universal Product Code (UPC) barcode system
Radio-frequency identification (RFID) tags
Electronic shelf labels (ESL)
Magnetic ink character recognition (MICR)