Welcome to TNW Basics, a collection of tips, guides, and advice on how to easily get the most out of your gadgets, apps, and other stuff. QR codes are a handy tool to bridge the offline with the ...

Originally developed in the mid-1990s for manufacturing and inventory control, QR codes most often appear as a small graphic that looks like randomly placed small black squares arranged in a ...

QR codes are a type of barcode, or scannable pattern, that contain various forms of data, like website links, account information, phone numbers, or even coupons. QR codes are found everywhere from ...