Which invention, first patented in 1952, revolutionized retail supply chain management and is considered the precursor to modern inventory tracking systems?

The retail landscape has been transformed by numerous groundbreaking inventions throughout history. From humble beginnings to technological revolutions, these innovations have shaped how businesses operate and consumers shop. This poll tests your knowledge about a key invention that revolutionized retail operations and created entirely new business models. Do you know which pioneering technology sparked a fundamental shift in how products reach consumers?

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The barcode (created by Norman Joseph Woodland and Bernard Silver)
The electronic cash register (created by James Ritty)
The shopping cart (created by Sylvan Goldman)
The credit card imprinter (created by Frank McNamara)