One-Dimensional Bar Code
This 1-D bar code is widely used as the universal product code (UPC) on millions of consumer items.
Computer Desktop Encyclopedia THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction is strictly prohibited without permission from the publisher.Copyright © 1981-2010 by Computer Language Company Inc. All rights reserved.
PDF417
This 2D PDF417 bar code image developed by Symbol Technologies contains the entire Gettysburg address. It is identified by patterns of vertical lines on each side. (Image courtesy of Symbol Technologies, Inc.)
Computer Desktop Encyclopedia THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction is strictly prohibited without permission from the publisher.Copyright © 1981-2010 by Computer Language Company Inc. All rights reserved.
DataMatrix
The DataMatrix code is used to mark small parts. It is identified by two solid lines and two alternating dark and light lines on its perimeter. (Image courtesy of AIM, Warrendale, PA, www.aimglobal.org)
Computer Desktop Encyclopedia THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction is strictly prohibited without permission from the publisher.Copyright © 1981-2010 by Computer Language Company Inc. All rights reserved.
MaxiCode
The MaxiCode uses hexagonal symbols and is identified by a bulls eye in the center. It is used for high-speed sortation. (Image courtesy of AIM, Warrendale, PA, www.aimglobal.org)
Computer Desktop Encyclopedia THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction is strictly prohibited without permission from the publisher.Copyright © 1981-2010 by Computer Language Company Inc. All rights reserved.

An example of a bar code.
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