Which major retailer first implemented and patented the concept of IoT-enabled 'smart shelves' that could automatically track inventory and alert staff when products needed restocking?

The Internet of Things has transformed modern retail in countless ways. One of the most innovative implementations has been smart shelf technology, which can track inventory in real-time, adjust pricing dynamically, and even interact with customer smartphones. This technology represents a fascinating intersection of retail analytics, inventory management, and customer experience enhancement. Test your knowledge about the origins of this game-changing retail technology!

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Amazon with its Amazon Go stores in 2016
Kroger with its EDGE (Enhanced Display for Grocery Environment) system in 2018
Walmart with its RFID-based Inventory Intelligence system in 2013
Intel and Kroger's joint venture introducing RFID-enabled smart shelves in 2001