This old technology can generate new business

You may not recognize them by name, but if you’ve read any magazines recently, you have no doubt seen these curious square symbols whose patchwork of black and white pixels (modules) vaguely resembles a crossword puzzle. QR (Quick Response) Codes, as they are known, are everywhere in print advertising, and if you own a smartphone there’s a good chance you’ve scanned one of these codes with a QR Code reader app. More

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