What is a Barcode Scanner?
A barcode scanner is a POS device that reads the barcode on a product and sends the number to the POS software, which adds the item and price to the bill. Most USB scanners act as a keyboard: they “type” the barcode number and press Enter, so they work with any POS software without drivers.
Shop products in Pakistan carry 1D barcodes such as EAN-13 and UPC. QR codes and some labels use 2D codes.