Designed as a high-tech marketing resource, QR (quick response) codes have many useful applications. These (usually) black-and-white algorithmic codes are gateways to a potential multimedia nirvana.

FORT CARSON, Colo. — For quick access to information, QR codes are used by private companies as well as federal, state and local governments. The Fort Carson ID Card and Defense Enrollment Eligibility ...

India is implementing QR codes on LPG cylinders to provide a digital identity, revealing details like filling dates and plant origins. This initiative combats theft, underweight cylinders, and ...