Software built into the cameras on iPhones and Android phones makes quick work of decoding QR codes. How do you do that on a laptop or desktop computer? I have a friend who calls me occasionally to ...

Add Yahoo as a preferred source to see more of our stories on Google. You don't need your phone to open a QR code. You probably already know how to scan a QR code with your phone. It's simple enough: ...

At one time or another, every business owner has wished they could have spotted an issue before it happened: Two kids colliding on a trampoline, a shoplifter taking flight or employees socializing ...