Everyone has seen them before and knows them: The square cube codes that are now popping up everywhere. Everyone knows what a barcode is for, for example. But why do you need the so-called QR codes?
The so-called QR codes are those codes that are built up in the form of a square. These squares, or rather cubes, contain data. Incidentally, the name QR comes from English and means “Quick-Response”, which simply means “quick response”.
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