Which retail technology invention, first used commercially in 1974 at an Ohio supermarket, revolutionized product identification and is considered the precursor to modern retail IoT systems?

Before smartphones and one-click shopping transformed how we buy products, a revolutionary invention in 1974 changed retail forever. This technology started a chain reaction of innovation that would eventually lead to today's seamless checkout experiences, inventory management systems, and product tracking capabilities. Test your knowledge about this pivotal moment in retail technology history!

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Universal Product Code (UPC) barcode scanner
Electronic Article Surveillance (EAS) anti-theft tag
Point of Sale (POS) computerized cash register
Magnetic stripe card reader