Universal Product Codes (also known as GTIN-12) appear as lines (bars) of varying widths representing the series of numbers commonly shown below the bars. Barcode scanners, as you will know them from your favorite retailers, read the bars and convert them back to the 12-digit UPC number that they represent. This number is then looked up within the retailer's inventory system to find the corresponding product name and price that you provided them with when you signed your agreement for them to carry your product.
In short, the UPC is a 12-digit unique code for your product represented by scannable bars.
1st. You purchase a UPC code(s). There is NO information other than the official UPC barcode number stored or encrypted into your barcode symbol.
2nd. You print the UPC barcode image directly on your product or order pre-printed barcode labels from Simply Barcodes.
3rd. You place your product with a retailer/distributor.
4th. Each retailer/distributor asks you to provide information about you and your product.
5th. The retailer/distributor enters the information in their sales/inventory management system and associates it with your product's UPC number.
6th. When your product is scanned at the register, the scanner reads the UPC number from the barcode, looks up your product's price and description in the retailer's database, and your sale is recorded.
The Universal Product Code (UPC) is a barcode symbology that is widely used in the United States, Canada, United Kingdom, Australia and in other countries for tracking trade items in stores. I have been using http://officialupccodes.com for a very long time for Amazon and Sears and I haven't had any problems and fast service.
I see you got all answered about what UPC barcodes are here.
Here is another one for general knowledge of UPC-A:
As for how to obtain those barcodes, there are a couple of ways too:
1. use UPC font(http://www.keepautomation.com/products/barcode_fonts/barcodes/upca.html)
2. UPC barcode generator
3.Web-based online UPC generator
commonly used for retail check out to automatically stream the price to "cash register"; it's truly a product identifier, which streams into price paid.
key is "scanability" so that the code is optically readable
UPC barcodes is an abbreviated term for Universal Product Code. It's used by companies to track products used in trade.
Each UPC-A barcode consists of a scannable strip of black bars and white spaces, above a sequence of 12 numerical digits. No letters, characters, or other content of any kind may appear on a standard UPC-A barcode. The digits and bars maintain a one-to-one correspondence - in other words, there is only one way to represent each 12-digit number visually, and there is only one way to represent each visual barcode numerically.
The scannable area of every UPC-A barcode follows the pattern SLLLLLLMRRRRRRE, where the S (start), M (middle), and E (end) guard bars are represented exactly the same on every UPC and the L (left) and R (right) sections collectively represent the 12 numerical digits that make each UPC unique. The first digit L indicates a particular number system to be used by the following digits. The last digit R is an error detecting check digit that allows some errors in scanning or manual entry to be detected. The non-numerical identifiers, the guard bars, separate the two groups of six digits and establish the timing.
Standard UPC-A Standard UPC-E*
1 23456 78999 9
Note: UPC-A 123456789999 corresponds with UPC-E 234569 (with the EOOEOE parity pattern). Equivalent UPC-A and UPC-E barcodes share the same check digit, which is 9 in this case.
Sorry if the 2 bar code pics didn't come, but it looks like ya TV screens gone black & white vertical stripes.
Cheers & catch ya later.
The Universal Product Code (UPC) is a barcode symbology (i.e., a specific type of barcode) that is widely used in the United States, Canada, the United Kingdom, Australia, New Zealand and in other countries for tracking trade items in stores. Its most common form, the UPC-A, consists of 12 numerical digits, which are uniquely assigned to each trade item. Along with the related EAN barcode, the UPC is the barcode mainly used for scanning of trade items at the point of sale, per GS1 specifications. UPC data structures are a component of GTINs (Global Trade Item Numbers). All of these data structures follow the global GS1 specification which bases on international standards. Some retailers (clothing, furniture) do not use the GS1 System (other bar code symbologies, other article number systems). Other retailers use the EAN/UPC bar code symbology but without using a GTIN (for products brands sold at such retailers only).
I found this site that helps you create your own UPC bar codes:
Check out http://www.ask.com/wiki/Universal_Product_Code?o=2801&qsrc=999 for a pretty good set of answers to your question.
when you swipe the barcodes over the scanner the price of the otem comes up. it also tracks inventory and cost of goods sold.( ithink!!)