Barcode Scanner

I went to one of the grocery’s store in our place and it’s very busy store. Lots of customers was lining towards the counter to checkout. But it’s amazing how fast the cashier swipe the barcode of each item. It did not took long for me to pull in line and the rest of the customers too. The barcode scanner makes helps a lot to make it quick for us to checkout. It makes me thinks what will going to happen if there’s no barcode scanner.