Did you ever wonder how a scanner reads a barcode? There’s a lot of science and engineering behind that red beam of light. The basic principle of a scanner is to analyze an image and process it in some way. Image and text capture (optical character recognition or OCR) allow you to save information to a file on your computer.
But how is all of that done with a laser beam. Watch this 3 minute Science Channel video that explains what goes on inside a scanner to make tracking data so easy for you.
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