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2D Barcodes Evolution and Revolution

In the mid nineties, Symbol Technologies' PDF417 2D symbology emerged as a printable reliable data carrier. 1D symbologies usually store a reference number (record ID/key) which requires a scan to the computer system to get the related record's data. 2D barcodes, on the other hand, can store the record itself within the printed symbology. As a simple example, older travel...

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