Which inventor is credited with creating and patenting the first self-checkout system in 1992, revolutionizing retail technology?

The retail landscape has been transformed by technological innovations that enhance customer experiences and streamline operations. Self-checkout systems revolutionized how we shop, but do you know their origins? Test your knowledge about this significant retail technology breakthrough that changed the shopping experience forever.

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• Dr. Howard Graham, whose 'AutoShop' system was first installed at Walmart
• David R. Humble, who was inspired after watching customers struggle in a long grocery line
• Margaret Wilson, an IBM engineer who developed the 'QuickPay' terminals
• Toshiba Corporation's R&D team, who pioneered the 'ExpressLane' system in Japan

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