How do barcodes in items found in shops work? And how are they registered?
In: 5
Barcode scanners have a laser. Since dark surfaces absorbs more light than the brighter gaps. The machine can “see” the line of stripes after all more light gets absorbed at the dark spots. This line isnt stupid it is made with logic behind it.. after all its a form of language..just how Morse code is a thing too. so a barcode scanner can make sense out of it.
Technically you can decode Barcodes and qr codes without the scanner per hand just by looking at it maybe a piece of paper to write along… you just gotta know how its set up and its quite the chore.
Latest Answers