Which retail invention, first used commercially in 1974 at an Ohio supermarket, fundamentally transformed inventory management by allowing automated product identification?

The retail landscape was forever changed by a revolutionary invention in the 1970s that transformed how products are tracked and sold. Before this technology, inventory management was largely manual, prone to errors, and time-consuming. This innovation not only streamlined operations but also gave birth to the modern checkout experience we take for granted today. Test your knowledge about this pivotal retail invention that bridged physical products with digital information systems.

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Universal Product Code (UPC) barcode
Electronic article surveillance (EAS) tags
Electronic shelf labels (ESL)
Point-of-sale (POS) touchscreen terminals