Which retailer holds the Guinness World Record for the largest single-day point of sale (POS) system implementation, deploying over 17,000 terminals across their stores in 2011?

The retail world is constantly pushing boundaries, and that includes technological implementations. Point of sale (POS) systems are the backbone of modern retail operations, but do you know which company holds the world record for the largest simultaneous POS system deployment? This trivia tests your knowledge of retail technology milestones that have made it into the record books.

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Walmart
Carrefour
7-Eleven
Aldi