https://nalar.dev/tags/technology-basics/ Recent content in Technology Basics on Nalar Hugo en-us Thu, 03 Sep 2026 00:00:00 +0700 https://nalar.dev/tech/how-qr-codes-store-information-and-why-they-still-scan-when-damaged/ Thu, 03 Sep 2026 00:00:00 +0700 https://nalar.dev/tech/how-qr-codes-store-information-and-why-they-still-scan-when-damaged/ <p>QR codes appear on tickets, menus, product packaging, payment screens, Wi-Fi setup cards, and many other everyday objects. A phone can often point its camera at one and recover the information in a fraction of a second.</p> <p>Although a QR code looks like a random grid of black and white squares, its layout is highly structured. Some areas help a scanner locate and orient the symbol, while other areas contain encoded data and information that helps recover from errors.</p>