The barcode scanner is that electronic equipment that can output and read the ‘printed barcodes’ to a computer. It consists of a light source, lens and lens sensor for translating ‘optical impulses’ into the electrical ones. The barcode scanners comprise of the ‘decoder circuitry’ which analyse image data of barcode offered by the sensor as well as by transmitting barcode content to the scanner’s output port. Various Kinds of Barcode Scanners There are various types of barcode readers or scanners from the single line barcode scanners, 2d barcode scanners to the iPhone and Android scanners. o Cordless Barcode Scanner: The battery-operated cordless barcode scanner has no connection to electricity mains and it transfers data like the PC. o Handheld Barcode Scanner: The handheld barcode scanners are equipped with the trigger button and handle for turning on the ‘light source’. o Camera-Based Scanners: These camera-based readers are the 2d barcode scanners. These make use o
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