Which technological innovation did military exchanges (PX/BX) pioneer in the 1990s, years before mainstream civilian retailers widely adopted it?

Military Post Exchanges (PX) and Base Exchanges (BX) have evolved significantly since their inception, becoming sophisticated retail operations that serve military personnel worldwide. These stores represent a unique intersection of military history and retail innovation, adapting technologies and customer loyalty programs specifically for service members and their families. Test your knowledge about this distinctive retail system that has supported troops from battlefield canteens to modern shopping complexes.

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RFID inventory tracking systems
Unified global point-of-sale systems that worked across all military installations
Self-checkout kiosks
Military-exclusive digital shopping apps