Which retail technology innovation from the 1970s first allowed stores to scan product information automatically and is still fundamental to modern shopping?

The evolution of point-of-sale systems has dramatically transformed how businesses conduct transactions throughout history. From manual cash registers to sophisticated digital platforms, these systems reflect changing consumer expectations and technological capabilities. This poll tests your knowledge about a pivotal moment in retail technology history that forever changed how we shop.

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• The UPC barcode system, first used commercially at Marsh Supermarket in 1974 on a pack of Wrigley's gum
• The magnetic stripe card reader, allowing credit card transactions without paper imprints
• The electronic cash register with digital display and thermal receipt printing
• The automated inventory management system using mainframe computers

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