Additional Questions About Barcode Scanners

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1D barcodes usually encode a string of numeric such as product number, production date, type, size, and so on. The modern-day one-dimensional barcode is read using a scanner. This scanner sends out a laser that detects the pattern. When the laser of a particular frequency sweeps across the barcode, some light is absorbed while the

1D codes are the most familiar. The common UPC code found on grocery and consumer items is a linear code that uses variable-width lines and spaces to encode the data. These codes hold a limited number of characters; in order to add more numbers, the barcode itself has to be longer. 2D barcodes use a