What is a barcode


What is a barcode
Credit: Victor Cristian Mitroi CC-BY 2.0

There are two main types of barcodes namely: the 1-Dimensional and 2-Dimensional versions. Most 1-Dimensional barcodes can record only numbers and keyboard characters. However, 2-Dimensional bar codes arrange information vertically and horizontally to maximize storage space. A 1-Dimensional scanner requires a typical barcode reader to read and interpret the codes, while the 2-Dimensional version requires an image scanner.

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