Which invention, first used commercially in 1974 at an Ohio supermarket, revolutionized retail inventory management by allowing automatic electronic product identification?

The retail landscape has been revolutionized by numerous technological innovations throughout history. One particular invention transformed how products are tracked and sold worldwide, creating efficiency that was previously unimaginable. Test your knowledge about this pivotal retail technology advancement that bridges the physical product world with digital inventory systems.

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Universal Product Code (UPC) barcode
Radio-frequency identification (RFID) tag
Electronic shelf label (ESL)
Point-of-sale (POS) touch screen