<ul><li>QR codes are like barcodes on steroids, allowing access to a range of data by scanning with devices like smartphones.</li><li>A single QR code can store up to 7,089 digits or 4,296 alphanumeric characters, providing versatility in encoding different types of data.</li><li>QR codes were invented by Denso Wave in the mid-1990s to track vehicles and parts for Honda, later open-sourced in 1999 for broader adoption.</li><li>In recent years, QR codes have seen a significant surge in popularity, especially in 2020, due to their use in contact tracing, digital payments, and touchless interactions.</li></ul>

An Introduction To QR Codes

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