QR (quick response) codes have been around for nearly 30 years. Developed in 1994 by a Japanese engineer for the purpose of tracking components in car factories, they have evolved into a highly ...

Anyone who has been to a restaurant in the last few months might have scanned a square barcode with their phone to pull up their dinner menu or pay for their meals to limit contact with servers. Now ...

Tile's new QR stickers offer Bluetooth-free tracking for low-tech enthusiasts Tile's techless stickers are designed to reunite users with their lost stuff while keeping sensitive information safe.