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4:13
YouTube
In One Lesson
How BARCODES Work
Barcodes In One Lesson. Barcodes have revolutionized modern life. Discover what happens every time you hear a beep at the checkout. I was inspired to make this video based upon an explanation of barcodes I found in a great book called Code: The Hidden Language of Computer Hardware and Software http://amzn.to/pR9MwK . I highly recommend it. (As ...
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