Which groundbreaking point-of-sale invention was first demonstrated at a Marsh Supermarket in Troy, Ohio in 1974, fundamentally changing retail checkout systems worldwide?

The way we process retail transactions has transformed dramatically over the decades. From manual cash registers to sophisticated digital systems, point-of-sale technology represents one of retail's most significant innovations. This trivia question explores a pivotal moment in retail history that changed how businesses process transactions and gather customer data. Test your knowledge about this revolutionary invention that bridged traditional commerce with the digital age.

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• The Universal Product Code (UPC) barcode scanner
• The electronic cash register with digital display (NCR 255)
• The magnetic stripe credit card reader
• The touchscreen self-checkout kiosk

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