Which retail technology invention, first used commercially in 1974, represented encoded product data as a series of parallel lines and revolutionized inventory tracking and checkout processes?

The retail landscape has been transformed by numerous technological innovations throughout history. One particular invention revolutionized inventory management and checkout processes worldwide, becoming ubiquitous in stores across the globe. Test your knowledge about this groundbreaking retail technology that bridged physical products with digital data systems, forever changing supply chain management and shopping experiences.

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Universal Product Code (UPC) barcode
Radio-frequency identification (RFID) tag
Near-field communication (NFC) chip
QR (Quick Response) code