QR Codes, Explained — What They Are and How to Use Them

QR Codes, Explained — What They Are and How to Use Them

8 September 2025 by Luis Salas

Have you ever been handed a menu or bill and told, “Just scan the QR code”? It’s easy to feel left out or frustrated — especially if no one explains how it works.

The good news? QR codes are actually simple once you know the basics.

1. What Is a QR Code?

A QR code (short for Quick Response code) is a type of square barcode. When you scan it with your phone’s camera, it quickly takes you to a website, form, or document — without typing anything.

📦 Think of it like a shortcut to information.

2. How to Scan a QR Code

On most smartphones, it’s built in:

  • Step 1: Open your Camera app (like you’re about to take a photo)
  • Step 2: Point the camera at the QR code — no need to press a button
  • Step 3: A link will pop up — tap it to open the page

💡 If it doesn’t work, search your app store for a free QR scanner app.

3. Where You Might See Them

QR codes are used in:

  • Restaurant menus
  • Event tickets
  • Wi-Fi login cards
  • Healthcare check-in forms
  • Online payments or donation pages

They save time and reduce paper — especially useful in public places.

4. Stay Safe When Using QR Codes

  • Only scan QR codes from trusted sources (like your doctor’s office or a known business)
  • Always double check the link before tapping — does it look legitimate?
  • Avoid codes left in public (like on flyers or random posters) — they could lead to scam sites

Final Thought

QR codes are meant to make life easier — not more confusing. Once you’ve scanned one or two, you’ll see how helpful they can be.

📬 Want more easy tech tips like this? Subscribe to Una updates or visit our Digital Skills section for guides made just for you.

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