Which invention, first implemented commercially in 1974 at a Marsh Supermarket in Ohio, revolutionized retail by allowing automatic electronic product identification at checkout?

The world of retail has been transformed by countless innovations and inventions throughout history. Some product launches fundamentally changed how we shop and interact with stores. This trivia question focuses on a pivotal technological invention that revolutionized retail inventory management and checkout processes worldwide. Test your knowledge about this game-changing retail technology that was first commercially implemented in the early 1970s and has since become ubiquitous in stores around the globe.

This is a live public trivia poll on AIPolls.Net. Vote and see real-time results.

Universal Product Code (UPC) barcode system
Electronic cash register with digital display
RFID (Radio-frequency identification) product tags
Self-checkout kiosk technology