Which retail technology, first used at an Ohio supermarket in 1974, revolutionized checkout processes and is considered one of the most important retail innovations of the 20th century?

Test your knowledge about a pivotal moment in retail history that forever changed how consumers shop. The invention and implementation of this technology marked a significant turning point in retail efficiency and customer experience, setting the foundation for many modern checkout systems we use today.

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UPC barcode scanner
Electronic cash register (ECR)
Credit card magnetic stripe reader
Automated inventory management system