A Barcode reader or Barcode scanner is an electronic input device which is able to scan and decode barcodes. These devices use optical technology such as infrared light. Some readers use an integrated decoder, others have one unit for reading the barcode, and another one to decode the barcode.
Barcode reader - Simple English Wikipedia, the free encyclopedia
simple.wikipedia.org > wiki > Barcode_reader
A barcode scanner (also referred to as a barcode reader) is a device that captures and decodes the information contained by a barcode. Traditional barcode scanners consist of the following four components: Light source: This helps the barcode read and accurately decode the information contained in a barcode.
How do Barcodes Work? Your Questions, Answered | Lightspeed
www.lightspeedhq.com > blog > how-do-barcodes-work