The first six digits of all Campbell products are the same. The next five digits are different for each Campbell product, such as chicken soup, tomato soup, and so on. As a result, the bar code for each product in a store is unique.
HOW BAR CODES HELP
Many kinds of businesses use bar codes. However, a bar code system is
especially useful in supermarkets. One reason is that most customers
purchase a large number of items. Bar codes make the checkout process
fast and easy. Also, supermarkets sell a wide variety of items. Most of these