QR codes are pixelated black and white squares that perform magic when we point the cameras on our phones at them—but what’s going on that makes this little spell possible? QR codes are akin to the ...

Posts from this topic will be added to your daily email digest and your homepage feed. You don’t need an app for this —your phone can do it already. You don’t need an app for this —your phone can do ...

We often find ourselves in a situation where we have to share the credentials of our Wi-Fi network with other people. Generally, the owner of the Wi-Fi router has to give out the password, which ...

Among the many changes brought about by the pandemic is the widespread use of QR codes, graphical representations of digital data that can be printed and later scanned by a smartphone or other device, ...

QR or Quick Response codes are one of the most popular ways to access information on the go. Invented in 1994 and once considered the wave of the future, part of the QR code revival that started in ...

In a hotel lobby, two QR Codes promote the same thing: a 10% discount on the breakfast buffet. One sits at eye level beside the elevator buttons, right where guests wait with their phones in hand. The ...