
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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