What's a 1D or linear barcode? Exactly what is a second barcode? A 1D or linear barcode is a mix of vertical bars. For some of them you are able to encode only numbers for other you may encode letters also. The vast majority of barcode scanners can read through https://juliushzqft.get-blogging.com/26570324/the-5-second-trick-for-sap-barcode-scanning