While QR has become a staple for "contactless" transactions of information and money, many don't know what the initials stand for, how it works, or who invented it.  What does QR stand for? QR stands ...

Beep. We’ve come a long way since June 26, 1974 when the first bar code was scanned at a grocery store in Troy, Ohio. That legendary pack of Juicy Fruit proved that even the smallest of items… ...

The codes are very resilient–even if partially damaged, the data can still be extracted from the bar code. The best-known 2D matrix code is QR Code. It was created by the Japanese corporation, ...

I t was invented for labelling automobile parts - but now QR codes are used in a much broader context in everyday life. The two-dimensional matrix barcode, created by the Japanese company Denso ...

QR code, short for Quick Response Code, is a kind of matrix barcode that includes information about a product or service. You can find it being used for advertising purposes, where brands put up ...

Assessing Data Matrix code quality. Barcode quality is measured in grades that can be reported as numbers from 0 to 4, or as letters from A to F (Figure 1). Grade A(4) is the best value and grade F(0) ...

Barcodes come in various types, including 1D barcodes such as UPC codes, and 2D barcodes such as QR and Data Matrix codes. A number of apps for different types of smartphones utilize the phone's ...

A 2D barcode appears as a small, square matrix (like the QR code, for example) instead of vertical lines, and requires an optical scanner or camera (like the one in your smartphone) to access ...

Quick response (QR) codes are square-shaped matrices of dark or light pixels that encode and quickly retrieve data using computer devices. An enhancement on traditional barcodes, QR codes can ...

As smartphones have become more and more ubiquitous, so have QR codes. These maze-looking squares are a type of matrix bar code that contains data — usually, QR codes point to a website or open ...