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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.
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 HCCB, a technology developed by Microsoft for encoding data in a 2D barcode using colored triangles. Find out how HCCB works, how it differs from QR codes, and how it is used in Microsoft Tag and other applications.
Rectangular Micro QR Code (also known as rMQR Code) is two-dimensional (2D) matrix barcode invented and standardized in 2022 [1] by Denso Wave as ISO/IEC 23941. [ 2 ] rMQR Code is designed as a rectangular variation of QR code and has the same parameters and applications as original QR code.
Learn about QR code payment, a mobile payment method where payment is performed by scanning a QR code from a mobile app. Find out the history, usage, and integrated QR code payment systems in different countries and regions.
Learn how to generate and use an app password to access your AOL Mail account on third-party email apps that do not use the AOL Mail sign-in page. App passwords are randomly generated codes that remain active even if you change your main account password.
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related to: qr code generatorqr.io has been visited by 100K+ users in the past month
qrcreator.com has been visited by 10K+ users in the past month