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 ...

To marvel at the choice and convenience of modern shopping, go visit your grocery-store mustard aisle. My local Whole Foods sells more than 20 different kinds: basic yellow mustard and Grey Poupon, ...

The initiative by the standards organization could bring traditional 1D barcodes into the 2D world of data matrix and QR-codes. After five decades of barcode use at the point of sale, the technology ...