Supermarket Scanners

Shopping is quicker, easier and more accurate

The key to scanning is the universal products code (UPC) which is a bar code found on most items in fact, everything from magazines to food.

Another marvel of computer technology has found its way into our lives through our supermarkets. It's the universal product code (UPC) scanning system, and it's designed to make shopping quicker, easier and more pleasant.

Since the scanning system was introduced in 1974, it has grown rapidly and is now in use in most supermarkets. The UPC consists of an in-store computer linked to a laser scanner and an electronic cash register.

The UPC code on each item is passed over a glass-covered slot in the checkout counter, where a laser scanner reads the code then transmits the information to an in-store computer. The price previously entered into the computer for that item then flashes on the visual display unit of the cash register and is, at the same time, printed on the receipt tape.

Scanners allow speedier service.

The first five numbers of the code designate the manufacturer, and the next five numbers tell what the specific product is. The retailer may also make UPC labels for products not coded by the manufacturer. You benefit from the scanners because you get speedier checkouts and more detailed receipts which state not only the price of each item bought but also the brand name and size. You can use these receipts to make long-term or short-term price comparisons.

The receipts also enable you to compare prices at different stores and prices of different sizes and brands. This is important, because about one fourth of the money spent at grocery stores is spent on items that aren't even food. These scanner receipts can help you see exactly how much you spend on unnecessary items as well as what you spend on products for household operation.

Scanners are more accurate than humans

These scanners also lessen the likelihood of human error and may result in lower prices when retailers pass cost savings on to consumers. The retailer benefits by increased labor productivity, reduced labor costs, accurate inventory control, better tracking of customer and product flow, and fewer cashier errors.

More and more supermarkets will add scanners, so it's important that you learn to use the information you receive on the tapes from these scanners.

For more information on supermarket scanners, contact your local county Extension office.