Which invention, first used commercially in 1974, revolutionized retail by allowing automated scanning of product information without manual price entry?

The retail landscape has been transformed by numerous technological innovations over the decades. From manual cash registers to sophisticated automated systems, these advancements have revolutionized how consumers shop and how retailers operate. This trivia question focuses on a groundbreaking invention that fundamentally changed product identification in retail environments worldwide, leading to faster checkouts and improved inventory management.

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• The UPC barcode system
• The magnetic stripe card reader
• The touchscreen POS terminal
• The electronic price tag system

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