Why Do We Use QR Codes Everywhere Now?

Imagine a secret message hidden in a square that you can read with your phone. That's what a QR code is, like a magic sticker that tells your phone exactly what to do when you point it at the code. It uses black and white squares to show information, like a website or a phone number, so you don't have to type it out.

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Examples

A restaurant uses a QR code on its menu so you can scan it and view the full menu online without needing to print out hundreds of pages.
You point your phone at a QR code on a bus stop, and it shows you when the next bus arrives.
A product box has a QR code that takes you straight to the company’s website for more information.

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Categories: Technology · QR code· technology· mobile apps· scanning· data encoding