On this day in 1974, the technology debuted that now tracks inventory and buying habits _ while still ringing up merchandise. It was only a pack of chewing gum. But its sale 25 years ago marked the ...
This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. DENVER (KDVR) — Self-checkout registers at ...
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