I guess "they" think by now everyone should know this stuff. Now I do. Thanks, Artie.
The "QR Code" is that box with millions of little black & white squares that you see in a lot of print ads. Scanning it with the app for your particular phone (It doesn't have to be an iPhone.) enables you to d/l something.
It's basic phone knowledge. (I see them all over the subway and had to ask too.) [/quote]