Which retail innovation, introduced in 1974, fundamentally changed product identification and inventory management, paving the way for modern checkout systems?

Before digital transformation dominated retail, previous centuries saw revolutionary innovations that forever changed how products reached consumers. From the first department stores to early catalog shopping, retail innovation has a fascinating history. Test your knowledge about a groundbreaking product innovation from the past that transformed shopping as we know it today.

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The Universal Product Code (UPC barcode), first scanned on a pack of Wrigley's gum at an Ohio supermarket
The punch card inventory system, pioneered by IBM for Macy's department stores
The electronic price tag, first implemented by Bloomingdale's to enable dynamic pricing
The magnetic stripe reader for credit cards, first used at Sears locations nationwide