Which of these retail technology innovations was first invented by Norman Joseph Woodland and Bernard Silver in 1952, but wasn't widely adopted in retail until the 1970s?

The world of retail has been transformed by technological innovations throughout history. Some inventions have completely revolutionized how consumers shop and how retailers operate. This poll tests your knowledge about a groundbreaking retail technology that changed the industry forever and paved the way for modern shopping experiences we take for granted today.

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The barcode scanner/UPC system
The electronic cash register (ECR)
Self-checkout kiosks
Electronic anti-theft tags