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Learn about the invention, development and applications of barcodes, a method of representing data in a visual, machine-readable form. Find out how barcodes evolved from linear to 2D, and how they are used in supermarkets, railroads and other industries.
QR code is a type of two-dimensional barcode invented in 1994 by a Japanese company for labelling automobile parts. It can store data for various purposes, such as web tracking, product identification, and mobile tagging, and can be scanned by imaging devices like cameras.
Code 128 is a high-density linear barcode that can encode all 128 characters of ASCII and Latin-1. It is used for product identification codes in shipping and packaging industries and has three code sets (A, B, C) and a check symbol.
Code 39 is a variable length, discrete barcode symbology that can encode 43 characters, including uppercase letters, numeric digits and special symbols. Learn how Code 39 works, its history, its advantages and disadvantages, and its encoding table.
Barcode library or Barcode SDK is a software library that can be used to add barcode features to desktop, web, mobile or embedded applications. Barcode library presents sets of subroutines or objects which allow to create barcode images and put them on surfaces or recognize machine-encoded text / data from scanned or captured by camera images with embedded barcodes.
Learn about the history, structure and usage of the UPC barcode, a global symbol for tracking trade items in stores. Find out how the UPC was created, how it differs from other barcode symbologies, and what are its advantages and challenges.
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