Barcodes

Barcodes are used extensively in many applications around the world, including on tags and labels. Barcoded eartags are available for individual animal identification.

Information is stored in the barcode by making parallel lines with certain thickness and gaps. When a barcode is scanned using a barcode reader, the reader decodes the barcode to reveal it's unique identifying number. The barcode scanner can be linked to a to a computer to record these unique numbers.