In the old days, everything is on a manual mode, like for example, when buyingan item in a grocery store, the cashier person will look into the price of an item, let’s say a bag of chips, then type the price to the computer or worst is list the price then computete it with a calculator. Now, since the introduction of a barcode scanner, things changed dramatically. This utilizes urgency, time management and price accuracy. Most of the groceries we shop use this kind of system where every product will be labeled according to their prices and a barcode that will be read by the scanner so that every time the scanner is used, the price will pop out the screen and do the compting though the computer. There are a wide range of barcode scanners according to their capability, there are aggressive scanners and heavy duty scanners to scan the most delicate barcodes out there. Now if you in someway own a store and still doesn’t use a barcode scanner, better think and buy now. Your profit will rise and the processing time will be cut into a fracture of a second. Your gain!