Manhattan CCD Contact Barcode Scanners deliver high-quality scanning for a wide range of data collection functions to help improve routine transactions, automate paper-based processes and increase productivity. At a typical supermarket checkout counter, a scanner is used to identify a product through its barcode, and a computer then looks up the item’s price and feeds that number into the cash register, where it becomes part of the bill for the customer’s purchases.Improve speed, accuracy and productivity.
Grocery stores use the codes to obtain price and other data about goods at the point of purchase by the consumer. This is usually the only information contained in a barcode.īarcoding was introduced in the 1970s and is now a ubiquitous part of routine commercial transactions.
In the UPC system, the five digits on the left are assigned to a particular manufacturer or maker, and the five digits on the right are used by that manufacturer to identify a specific type or make of product. The barcodes printed on supermarket and other retail merchandise in the United States are those of the Universal Product Code, or UPC, which assigns each type of food or grocery product a unique code. The computer then stores or immediately processes the data in the barcode.
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A handheld scanner or barcode pen is moved across the code, or the code itself is moved by hand across a scanner built into a checkout counter or other surface. The numbers represented by a barcode are also printed out at its base.īarcode information is read by an optical ( laser) scanner that is part of a computer system. Most such codes use bars of only two different widths (thick and thin), though some codes employ four widths. The presence or absence of a bar of a particular width in a particular position in a sequence is read by the computer as either a 0 or 1. The bars are used to represent the binary digits 0 and 1, sequences of which in turn can represent numbers from 0 to 9 and be processed by a digital computer. The bars are typically black on a white background, and their width and quantity vary according to application.
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