QR codes have now become a common feature in our daily lives and are appearing on almost everything from product packaging to tickets and restaurant menus. Scanning these codes usually provides quick ...

Ever since Meta introduced a QR code-based feature to share Instagram profiles, users no longer had to spell out their account name to a new friend or type it out. The simple ‘Share Profile’ button ...

QR codes have become an essential part of modern life, from scanning restaurant menus and making digital payments to sharing contact details and promoting businesses. These black-and-white squares are ...

Jeff Werner is a software engineer and has been writing this column since 2007. Question: I’m another one of your older readers, who watches in quiet wonder as technology advances and the world ...