Which retailer first implemented a viable self-checkout system for customer use in their stores?

Self-checkout systems have transformed the retail landscape, changing how consumers interact with stores while addressing operational challenges for retailers. This technology has evolved significantly since its inception, becoming a standard feature in many retail environments worldwide. Test your knowledge about the origins of this revolutionary retail innovation that has fundamentally altered the shopping experience and retail operations.

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Price Chopper (New York-based supermarket chain)
Kroger (Cincinnati-based grocery retailer)
Albertsons (Boise-based food and drug retailer)
Price Check (later acquired by IBM and rebranded as 'IBM Self Checkout')