Which retail technology innovation was first successfully implemented by the Ohio-based Marsh Supermarket in 1974, fundamentally changing how products were tracked and sold?

Test your knowledge about a pivotal moment in retail history that revolutionized how stores track inventory and process sales. This innovation fundamentally changed retail operations worldwide and paved the way for modern data analytics in the industry. The correct answer represents a technological breakthrough that many take for granted today but was once considered revolutionary.

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Universal Product Code (UPC) barcode scanning
Electronic point-of-sale (EPOS) credit card processing
Automated inventory management software
Digital cash registers with sales tracking