QR Codes

If you missed it, QR codes were discussed at the January 10th meeting. Here is more information.

What are QR codes?

QR code (abbreviated from Quick Response Code) is the trademark for a type of matrix barcode (or two-dimensional barcode) first designed for the automotive industry in Japan. A barcode is a machine-readable optical label that contains information. The matrix barcode can be reconstructed if up to 30 percent of it has been destroyed.

The encoded text and data is presented in a two dimensional quadrant with black and white dots. A 2-D barcode is able to store approximately 100 times more data than a common 1-D, linear barcode. The maximum capacity of the encoded characters is over 4,200 alphanumeric characters (numbers, letters and symbols).

QR codes are used to present URLs, telephone numbers and whole contact data e.g. business cards on websites, brochures, and in online and print advertisements. They are used to save users from having to copy or type in the information.

How do I use them?

The easiest way to use these codes is to scan them with a smartphone. Two free smartphone apps are NeoReader and i-nigma. You can also do a search for ‘qr code reader’.

After you install and open the reader, point your phone’s camera at the barcode. If it is a URL, the reader can open the web page for you. If it is a product code, you can comparison shop. You can also add calendar items, or copy and paste text.

How can I make my own QR code?

Do a search for ‘qr code generator‘. There are free sites that will allow you to create a static QR code without having to register or pay any fees. Some sites that does this include goqr, qrstuff, qr-code generator, kaywa, qr-code-generator.

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