Which company introduced the first modern computerized Point of Sale (POS) system that revolutionized retail transactions in the 1970s?

The evolution of retail technology has dramatically changed how merchants conduct business throughout history. Point of Sale (POS) systems represent one of the most significant technological advancements in retail, transforming how transactions are processed and inventory is managed. This trivia question explores the historical origins of modern computerized POS systems that laid the foundation for today's sophisticated retail technology ecosystem.

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IBM with their IBM 3650 Retail Store System
NCR with their NCR 280 Electronic Cash Register
Casio with their Casio Electronic Register
Digital Equipment Corporation with their DECsystem-10