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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.
Barcode Scanner is an Android app that scans barcodes or 2D barcodes and retrieves the data encoded. It is part of the open-source project ZXing, which also provides a library for barcode recognition and generation.
A barcode reader is an optical scanner that can read printed barcodes and send the data they contain to computer. Learn about different types of barcode readers, such as pen, laser, CCD, camera and omnidirectional scanners, and how they are used in various applications, such as retail, inventory, movies, music and more.
The first line of defense against malicious QR codes is ensuring your phone has the latest operating system. Two-factor authentication software that confirms your identity using your cellphone or ...
Learn how to turn off 2-step verification and receive a verification code to sign into your AOL account. You can use phone verification or authenticator app verification to add an extra security step.
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.
On the other hand, there are several readers which were created to read out non-proprietary code, these 'open source codes' are the most used for Optical Reading with Mobile like the QR Code and the Data Matrix. However, a QR code is always 60% larger than a DataMatrix code and this tends to mean that DM is the primary code used in packaging ...
Aztec Code is a matrix code invented by Andrew Longacre, Jr. and Robert Hussey in 1995. It has a bull's-eye pattern at its centre and can use less space than other barcodes because it does not require a blank "quiet zone".
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