What is Qr code?

A QR code, short for Quick Response code, is a two-dimensional barcode that can be scanned using a smartphone or QR code reader to quickly access information or perform specific actions. It consists of black squares arranged on a white background, and can store various types of data such as website URLs, contact information, text, or even Wi-Fi network credentials. When scanned, the QR code can instantly direct the user to a website, display text, initiate a phone call, send an email, or perform other functions based on the encoded data. QR codes are widely used in marketing, advertising, ticketing, product packaging, and many other applications.