Modified versions of QR codes have since been successively introduced to respond to emerging needs. The space-saving Micro QR code emerged in 1998. It can be printed on an area as small as 1 ...

Google is working on a change to Android Quick Share that makes using the tools with QR codes even more streamlined.

The QR code (short for Quick Response code) was invented in 1994 by Denso Wave, a former subsidiary of Toyota, as a means of efficiently tracking vehicles and parts during the manufacturing process.

Instead of entering your number and getting a six-digit code via SMS, you'll see a QR code that you scan with your phone's camera. Richendrfer said Google is making this switch to "reduce the ...