UPC Barcodes Vs. QR Codes

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QR codes are similar to UPC barcodes that can be found on every item in the grocery store. The difference between UPC barcodes and QR codes are their storage capacity. QR codes can hold information in both ways the vertical and horizontal directions, while UPC barcodes only hold information only in one way the horizontal direction. This means that QR codes can contain more information than UPC barcodes. It is approximately 350 times more information. This information is held in the black squares on the square grid as white background. There are 40 “versions”. The word version refers to the size of the code symbol in modules. A version one code is 21 modules by 21 modules. A version 40 code is 177 by 177. To go up a version, you need to add
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