They are so common around the world today that we rarely even notice the barcodes that appear all around us. Not only used for retail goods when you do your grocery or clothing shopping, barcodes are also utilised by business and government, and widely in the postage and logistics industries amongst countless other fields. 

What barcodes are used for and why they work: Barcodes can be used to track everything from mail, to assets within a bank or large corporation, and even employees and vehicles. Barcodes are essentially a visual version of Morse code – where the dots have been extended upwards so that a barcode scanner can pick them up within milliseconds and speed up the data capture process, whilst at the same time drastically reducing the chance of error...