urgently requried! how can i made a barcode reader?

urgently requried! how can i made a barcode reader?
I have to make a barcode reader that can scan and retrive data.

Best answer:

Here is a link to a Website that shows how to make a barcode scanner:

inchlab.net/barcode_scanner.htm

And a link to how the technology works:

taltech.com/Bar_Code/bckb/howabar.htm

Tags: Barcode, made, reader, requried, urgently

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