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READING AND DECODING OF CODE 128 SET B BARCODE: Code 128 Set B barcode is scanned using a scanner that emits a beam of light, which illuminates barcode and reflects it back to scanner. Reflected light is converted into an electrical signal, decoded into a digital signal representing encoded information. Digital signal is interpreted to determine characters encoded in barcode. Decoded information is then output to a computer for managing inventory and tracking purposes. ADVANTAGES OF CODE 128 SET B BARCODE: -*It offers high-density encoding, enabling more data to be encoded in a smaller space, making it ideal for limited space applications. *They consist of three subsets (A, B, C) for encoding various data types, with Subset B being the most commonly used. *Software features an error detection system, enabling accurate decoding of information even in the event of damage or partial obscurement. LIMITATIONS OF CODE 128 SET B BARCODE:-*Code 128 SET B barcode has limited data capacity, encoding only ASCII characters, numbers, and special characters, making it unsuitable for large data amounts, preferring Data Matrix or QR Code. *Readability of Code 128 SET B barcode relies on its print quality, which is crucial for its proper readability, requiring high-quality printers, and materials. *It is a linear barcode, suitable for straight line printing, but not for complex 2D or QR codes, unlike QR codes that can be printed in various shapes. COST IMPLEMENT OF CODE 128 SET B BARCODE:Cost of barcode scanner varies based on its type, features, and brand. Cost of printer also depends on its type, features, and brand. Thermal printers are used, inkjet and laser printers are less common. Barcode software costs vary, with free software offering basic features and paid software offering advanced features. Implementation costs depend on scale of project.