Barcodes

=__**Barcodes**__= A **barcode** is an optical machine-readable representation of data, which shows data about the object to which it attaches and are mainly used on different products in store to identify the item.

Advantages


 * Products can be easily identified.
 * Fast and efficient.

Disadvantages


 * The discounts have to be added on by the employess themmself.
 * It can not be read if the barcode is damaged.
 * It can cost a lot of money to implement the system.