Shoppers may hear the sound of money escaping from their wallets everytime they hear the boops and beeps from the checkout scanner. But they can take heart, as it's costing the business owners, too.
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 ...
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