Which retail technology innovation, first commercially implemented in 1974 at an Ohio supermarket, uses parallel lines and spaces to represent data that can be optically scanned?

The retail landscape has been transformed by numerous technological innovations over the decades. From simple cash registers to sophisticated inventory systems, technology has revolutionized how stores operate and how customers shop. One particular invention fundamentally changed retail operations worldwide, creating new possibilities for efficiency and accuracy. Test your knowledge about this pivotal retail technology breakthrough that we now take for granted in almost every store.

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Universal Product Code (UPC) barcode system
Radio Frequency Identification (RFID) tags
Electronic Article Surveillance (EAS) tags
Point of Sale (POS) touchscreen terminals