The acronym "QR" refers to Quick Response, which pertains to a type of two-dimensional barcode. QR codes can store a variety of information, including URLs, contact details, and product information. Designed for quick scanning and decoding by devices such as smartphones, QR codes enhance user engagement by providing instant access to digital content without requiring manual input. Their versatility has led to widespread adoption across industries for marketing, payment processing, and information sharing. As technology evolves, QR codes are increasingly integrated into daily transactions and interactions, simplifying user experiences.