Which technology is NOT typically integrated into modern retail 'smart shelf' systems?

Smart shelves represent one of retail's most promising technological advancements, combining IoT sensors, weight detection, and computer vision to transform inventory management and customer experience. These intelligent fixtures are changing how retailers track stock, prevent theft, analyze shopping patterns, and even interact with consumers. Test your knowledge of this emerging retail technology that's reshaping brick-and-mortar stores in the digital age.

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RFID sensors for real-time inventory tracking
Electronic shelf labels that update prices automatically
Quantum computing processors for in-store calculations
Weight sensors that detect when products are removed