When was the world's first self-checkout system invented, and what was it called?

Self-checkout technology revolutionized the retail industry by reducing wait times and operational costs. Though commonplace today, this invention was once groundbreaking and faced significant skepticism. Test your knowledge about this pivotal retail innovation that changed how we shop forever!

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• 1992, 'ShopperTrak' by NCR Corporation
• 1986, 'CheckRobot' by David R. Humble
• 1967, 'Automated Checkout System' by IBM (never commercialized)
• 1984, 'ServiceRobot' by David R. Humble

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