You walk through a grocery store. Every product has a small rectangular striped pattern on it. Black and white bars of different widths arranged in a line. At checkout, a laser scans the pattern. A beep sounds. The product appears on the receipt with the price. That striped pattern is a barcode. A barcode generator created it. Barcodes are one of the most powerful inventory management tools in retail and logistics. They allow businesses to track millions of products instantly, automatically. Without barcodes, modern retail would be impossible. But barcodes are more than just grocery store tools. They are used in warehouses, libraries, hospitals, manufacturing, and countless other industries. In this comprehensive guide, we will explore what barcodes are, how they work, how generators create them, and when to use them. 1. What is a Barcode? A barcode is a machine-readable code made of vertical bars and spaces of varying widths. The Basic Concept Input: A number (product code, serial num...