Which retail innovation lab creation, first implemented in 1974, fundamentally changed shopping by introducing the first commercial use of computer-driven product identification?

The history of retail has been transformed by technological innovations that have changed how customers shop and how businesses operate. Some of the most significant breakthroughs came from experimental retail innovation labs where companies test new concepts before wider deployment. This trivia question focuses on a groundbreaking retail innovation that revolutionized the shopping experience and set the stage for modern commerce technologies.

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The IBM self-checkout kiosk prototype
Walmart's automated inventory tracking system
The Universal Product Code (UPC) barcode scanner at Marsh Supermarket
Sears' electronic point-of-sale terminal