A code reader is a machine that reads barcode information. It utilizes an infrared light source that is emitted, and then based on the reflected results, a chip is used to decode the code, and then finally return the correct characters represented by the barcode. It is a machine that reads barcode information, utilizing an infrared light source that is emitted, and then based on the reflected results, a chip is used to decode and finally return the correct characters represented by the barcode.