BARCODE READER
A barcode reader (or bar code scanner) is an electronic device for reading printed barcodes.It consists of a light source, a lens and a light sensor translating optical impulses into electrical ones.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.It is used in super markets for scanning products.
Courtesy : http://www.slideshare.net/popberrypinky/input-devices-2837492
A barcode reader (or bar code scanner) is an electronic device for reading printed barcodes.It consists of a light source, a lens and a light sensor translating optical impulses into electrical ones.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.It is used in super markets for scanning products.
Courtesy : http://www.slideshare.net/popberrypinky/input-devices-2837492