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A QR code ( quick-response code) is a type of two-dimensional matrix barcode, invented in 1994, by Japanese company Denso Wave for labelling automobile parts.
A barcode reader or barcode scanner is an optical scanner that can read printed barcodes and send the data they contain to computer. [1] Like a flatbed scanner, it consists of a light source, a lens, and a light sensor for translating optical impulses into electrical signals.
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.
Here's how to scan almost anything with an iPhone, including documents, QR codes and more.
Google Chrome gets its own QR code & barcode scanner. Here’s one more app you can delete from your iPhone: that QR code and barcode scanner you only occasionally use. With an update...
You often needed a special QR code reader app which might fail to recognize the little robot tattoos on the first try. By the time you found your QR app and got a code scanned, you probably could ...