Which revolutionary retail technology was first widely implemented in military Post Exchanges (PX) during the 1970s, years before becoming standard in civilian retail?

Post Exchanges (PX) and Base Exchanges (BX) have been crucial retail operations supporting military personnel and their families for generations. These specialized retail environments have evolved from simple commissaries to sophisticated omnichannel operations. This trivia tests your knowledge of how military retail operations have transformed to serve those who serve their country, blending military history with retail innovation.

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Universal Product Code (UPC) barcode scanning systems
Self-service checkout kiosks
Digital inventory management systems
Loyalty card programs