Which invention, first used commercially in 1974 at a supermarket in Ohio, revolutionized retail by allowing automated product identification and inventory tracking?

The retail landscape has been transformed by numerous groundbreaking inventions and discoveries throughout history. This poll tests your knowledge about a significant technological innovation that revolutionized how retailers track inventory and process transactions. This invention fundamentally changed retail operations worldwide and continues to evolve with new applications in the Internet of Things (IoT) and modern commerce systems.

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

Universal Product Code (UPC) barcode system
Electronic point-of-sale (EPOS) touchscreen terminal
Radio-frequency identification (RFID) tags
Electronic article surveillance (EAS) security tags