Which revolutionary retail technology was first widely implemented in military exchanges (PX/BX) before becoming standard in civilian retail?

Post Exchanges (PX) and Base Exchanges (BX) have been essential retail institutions for military personnel and their families for generations. These specialized retail chains have evolved from simple supply points to sophisticated retail operations with unique logistics challenges and brand collaborations. Test your knowledge about this distinctive military retail sector that blends military history with retail innovation.

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Universal Product Code (UPC) barcode scanning systems
Self-checkout kiosks
RFID inventory tracking
Contactless payment systems