When the barcode scanner reads the bar code, it translates the bars into numbers or letters. It then sends that information into the computer, or terminal or whatever device it is attached to. In the case of a supermarket it would send the numbers to the central computer in the back office, and ask the computer to send back the price and description information that corresponds to the UPC number. There is no price in the UPC number. The price and description, weight, etc are stored somewhere else.
If you have a product that you intend to sell through retail or distribution channels, you will need a unique barcode for that product. Click here for information on How to get a barcode.
If you would like to create your own barcode, we have free utility on our website to do that. Click here to Create your own barcode.
Was this article useful? Subscribe to our weekly(ish) email newsletter to receive more great articles about bar code technology.
Follow us on Twitter to get daily updates: Barcode.com on Twitter
Other articles that may interest you:
YouTube Video's that illustrate how to make labels and bar codes:
Get The Bar Code News once a month, once a week or once a day. Subscribe here.This is an example of a Code 128 barcode that contains letters.