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Barcodes are used for product identification which helps improve inventory management. Stock Keeping Unit is used by vendors to maintain product inventory based on Units' relevant attributes. *Working method of Barcode Scanner-Barcode scanner is used to scan the product code. If the product is available in the warehouse your software reads the product code and begins product tracking with a specific barcode. If any person scans the product code, then your software denotes the product detail and inventory stock. Barcode Scanner Software helps to speed up and save the time in your business. *Comparison between Stock Keeping Unit and Barcodes- Barcode provides product information through reading the product code. Stock Keeping Unit refers to the unique name of numbers assigned to a product to define the Identify the price and other product information. *There are 9 facts to know about barcodes for retailers. Numbers meaning in barcodes- A unique number in the item is represented by the numbers found below the vertical or bar, lines, of a 1D barcode. These numbers are visually represented by the barcode. Barcode are different sets of black and white colures is assigned to each number from 0 to 9. Many products use the Universal Product Code (UPC) system. Barcodes match to a Global Trade Item Number and use a defined barcode symbol (GTIN). UPC barcodes have 12-digit numbers that represent a set of formatting criteria. The first number of UPC barcodes represents which category a product is put under. If the barcode starts with the number 3 it means the product is healthcare-related. if the barcode starts with the number 2 its mean product is related to weight like meat. Next 10 digits of barcodes refer to company information like manufacturing code and product code. Last digit of the barcode refers to check digit which is scanned by a computer to ensure all of the other numbers in the code are correct.