BarCode Scanner

BarCode Scanner

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A barcode reader (or barcode scanner) is an electronic device for reading printed barcodes. Like a flatbed scanner, it consists of a light source, a lens and a light sensor translating optical impulses into electrical ones. Additionally, nearly all barcode readers contain decoder circuitry analyzing the barcode's image data provided by the sensor and sending the barcode's content to the scanner's output port.

Many phones are able to decode barcodes using their built-in camera, as well. However, these devices are not designed specifically for the capturing of barcodes. As a result, they do not decode nearly as quickly or accurately as a dedicated barcode scanner or PDT.

Barcodes became commercially successful when they were used to automate supermarket checkout systems, a task for which they have become almost universal.

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