Which inventory management technology was originally developed for military supply tracking during the Vietnam War before revolutionizing retail inventory systems globally?

Throughout military history, innovations in supply chain and inventory management have been crucial for battlefield success. From Napoleon's famous quote that 'an army marches on its stomach' to modern logistics systems, the management of military supplies has often determined the outcome of conflicts. This trivia question explores a revolutionary retail inventory management system that was first developed for military use before transforming civilian retail operations worldwide.

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Barcode scanning system
RFID (Radio-Frequency Identification)
QR code technology
Electronic Data Interchange (EDI)