Which of these revolutionary retail technologies was invented first and fundamentally transformed how consumers shop?

Throughout history, technological innovations have revolutionized how we shop and interact with products. From barcode scanners to digital payment systems, retail technology has continuously evolved to enhance the consumer experience. This poll tests your knowledge about a pivotal invention that changed retail forever and shaped consumer behavior worldwide. Can you identify which groundbreaking retail technology was invented first and fundamentally altered shopping patterns?

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The barcode scanner, first used commercially at Marsh Supermarket in 1974 on a pack of Wrigley's gum
The electronic point-of-sale system (EPOS), first implemented by McDonald's in 1978 to track sales data
The RFID tag for retail inventory, first deployed by Walmart in 1983 to revolutionize stock management
The touchscreen self-checkout kiosk, first introduced by NCR Corporation in 1986 at select grocery stores