History of Bar Codes

Product Bar codes were originally invented in 1974 for use only in retail stores in order to streamline their point of sale systems and stock inventory, which can be read about on Encyclopedia but today they are being used in many different ways, as well as many different formats have been created for various uses. Let us look at a few. Bar codes are used in the tracking of illegal actions, such as logging. We may not realise what a serious problem this has become and how authorities are having to keep a very close eye on it, and they are now using them to assist in this regard in the tropical forests. All trees that are cut down legally are tagged with bar codes that have been printed on a plastic tag which is then nailed into the tree and these codes are scanned once the tree is cut down...