How Does a QR Code Work?

A QR code looks like a square with black and white squares inside. When you scan it, your phone reads the pattern of these squares to find out what message or link was hidden in there. It's like a secret language that your phone knows how to decode.

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Examples

A QR code on a restaurant menu lets you scan for more details about each dish
You can scan a QR code on your phone to log in to a Wi-Fi network
QR codes are used at concerts to show people where they need to be

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Categories: Technology · QR code· technology· coding