How QR Codes Actually Work

QR codes are everywhere now — restaurants, payments, tickets, parking meters, and even product packaging. But how can a tiny black-and-white square instantly open websites, store information, and work even when partially damaged? In this video, we explore the fascinating technology behind QR codes, how your phone reads them so quickly, why they were invented, and the hidden systems that make them so reliable. From factories in Japan to becoming a worldwide everyday tool, this is the story of how QR codes actually work. ⏱️ Timestamps: 0:03 Intro 1:05 Before QR Codes Existed 2:38 What a QR Code Is Made Of 4:04 How Your Phone Reads It 5:26 Why QR Codes Still Work When Damaged 6:08 Why QR Codes Became Everywhere 6:55 Conclusion #qrcode #technology #howitworks #barcode #smartphones #techhistory #digitaltechnology #explained #historyofsimplethingsclassic