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More on QR codes

By 
Lee Hart

Published: January 6, 2022

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Most Canadian farmers are certainly familiar with QR codes these days — the QR stands for quick response. First, they’ve been around for nearly 30 years — it’s a square with a maze of black symbols and markings inside its border, often found on the labels of various products. 

The QR code is described as a type of matrix barcode invented in 1994 by the Japanese automotive company Denso Wave. A barcode is a machine-readable optical label that contains information about the item to which it is attached. In a lot of cases, you can open the QR code information by capturing the code with the camera on your smartphone. 

And in the past year or so of the COVID-19 pandemic, the QR code has become the tool federal and provincial governments have developed for people to show proof they have been vaccinated against the virus.

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About the author

Lee Hart

Lee Hart

Farm Writer

Lee Hart is a longtime agricultural writer and a former field editor at Grainews.

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