Free Bar Code Software

By | August 18, 2006

All products are bar-coded in the present market. Even the smallest retail items like chocolates or pencils have a unique bar code to identify them accurately. Bar codes have specific symbology that is defined in the height and width of the bars, as well as the spacing between the bars. Each of these bars might represent numeric data, alphanumeric data or character data, depending on the type of symbology being used by the user. Each bar code has a start bar and an end bar to allow the scanner to read the data precisely. Some bar codes have another bar before the end bar, known as the checksum bar. After the scanner calculates the sum, the same is verified with the value of the checksum bar code for accuracy. This ensures exact calculation with minimal errors.

Original post by Computers-and-Technology Articles from EzineArticles.com and software by Elliott Back

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