Which retail technology invention, first used commercially in 1974, was inspired by Morse code and revolutionized inventory tracking?

The retail landscape has been transformed by numerous technological breakthroughs and innovations throughout history. Some of these inventions fundamentally changed how consumers shop and how businesses operate. This trivia question explores a significant technological advancement that revolutionized retail inventory management and product identification worldwide, setting the foundation for modern e-commerce and retail analytics.

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Universal Product Code (UPC) barcode system
RFID (Radio-Frequency Identification) tags
Electronic Article Surveillance (EAS) tags
Point of Sale (POS) touch screen terminals