Which WWII military logistics innovation directly led to the development of modern point-of-sale barcode systems?

During World War II, military logistics transformed retail strategies forever. The massive scale of supplying millions of troops across global theaters required innovations that would later revolutionize civilian retail. From inventory tracking systems to distribution networks, many modern retail logistics concepts have roots in military supply chains. Test your knowledge about this fascinating intersection of military history and retail logistics evolution!

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The Army's Quartermaster Corps' punch card system for tracking equipment distribution
The Navy's ship-to-shore supply notification flags used in Pacific operations
The RAF's color-coded inventory management system for aircraft parts
The Marine Corps' field manual procurement system using carbon-copy requisition forms