Which technological innovation from the 1970s first enabled retailers to systematically collect and analyze consumer purchasing data on a large scale?

The world of retail has been transformed by technological innovations that changed how businesses understand customer behavior. Before the era of digital analytics, one groundbreaking invention revolutionized how retailers collected and analyzed shopping data, setting the foundation for today's sophisticated retail analytics systems. Test your knowledge about this pivotal moment in retail history!

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Universal Product Code (UPC) barcode scanning systems
Electronic cash registers with digital receipts
Magnetic stripe loyalty cards
Computerized inventory management systems