Which technological innovation did Army & Air Force Exchange Service (AAFES) pioneer in 1979, revolutionizing military retail point-of-sale systems worldwide?

The Post Exchange (PX) system has been a crucial element of military life for generations of service members. These retail establishments have evolved from simple sutler wagons following troops in the 1800s to modern department store-like facilities on bases worldwide. Beyond providing everyday essentials, they've shaped military culture and offered a touch of home to deployed personnel. Test your knowledge about this unique military retail institution that has served the armed forces for over a century.

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• The first electronic barcode scanning system in any military retail environment
• The first credit card payment system for military personnel
• The first computerized inventory management system for overseas bases
• The first satellite-based transaction processing network for combat zones

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