What is a quick repsonse (QR) code?

Apr 25, 2011 - 21:25
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What is a quick repsonse (QR) code?

A QR code (short for Quick Response) is a specific matrix barcode (or two-dimensional code), readable by dedicated QR barcode readers and camera phones. The code consists of black modules arranged in a square patte on a white background. The information encoded can be text, URL or other data.

Common in Japan, where it was created by Toyota subsidiary Denso-Wave in 1994, the QR code is one of the most popular types of two-dimensional barcodes. QR is the abbreviation for Quick Response, as the creator intended the code to allow its contents to be decoded at high speed.

The technology has seen a large uptake in Japan and South Korea. However, in the West there has been a far slower adoption of QR codes

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Mike Gallagher Mike Gallagher is a Georgia-based freelance journalist covering local news, community developments, and regional issues that matter most to residents across the state. Writing for Georgianewsday.com since 2016, Mike has built a reputation for clear, balanced reporting and a strong connection to the communities he serves. His work spans city council decisions, school board updates, small business features, public safety reports, and statewide policy changes. In addition to local coverage, Mike occasionally reports on state politics and national headlines, offering readers context on how broader decisions impact Georgia communities. Known for his steady, fact-driven approach, Mike prioritizes accuracy, fairness, and accessibility in every story. Whether covering a town hall meeting or breaking political developments, he aims to inform readers with clarity and integrity. Outside the newsroom, Mike remains actively engaged in Georgia’s civic landscape, always seeking the next story that shapes the state’s future.