Most everyone has seen a point of sale scanner at some point in their life. They can vary in size and technology. The most common may be the small hand-held scanner, which works well for small retailers. Larger stores with heavy check-out activity may want to install an embedded scanner like the ones seen in supermarkets. The way a barcode scanner works is, the scanner reads a series of numbers and lines (the barcode), deciphers the information, and sends that information to the computer. Not only are barcode scanners accurate, time-saving devices when ringing up multiple products for a customer, they also serve as a handy tool to add inventory to the POS softwares database.
