Which retail innovation first introduced in 1974 revolutionized inventory management by allowing products to be scanned electronically at checkout?

Before computerized systems transformed retail operations, inventory management was a labor-intensive process. This poll explores a pivotal moment in retail history when a technological innovation revolutionized how stores tracked their products. Test your knowledge about this transformative development that laid the foundation for today's sophisticated inventory management systems and forever changed the retail landscape.

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Universal Product Code (UPC) barcode system
Radio-frequency identification (RFID) tags
Electronic shelf labels (ESL)
Point of Sale (POS) touchscreen terminals