On May 1, 9:52*am, DerbyDad03 wrote:
On May 1, 10:05*am, Tegger wrote:

" wrote :

Do you know what a UPC is? *These square thingys are 2-D UPCs.

The ones the OP is referring to are bar codes, but they're /not/ UPCs.

--
Tegger

No, the ones the OP are refering to are /not/ bar codes. They are QR
codes.

First, note his description: "square boxes that are filled with a
bunch of dots and three of the corners have small boxes in them"

Now do a Google image search on "QR codes" to see what the OP is
asking about.

They ARE UPC codes, but not bar codes per se. They're actually called
2D or Matrix Codes. QR is a marketing term. They're used because they
hold LOTs more data than the 13 digits a "bar code" can hold. The UPC
organization is involved in their evolution. In 2014, they'll start
replacing "bar codes".

The bar code/matrix code technology is old. very old. It's the ability
of a smartphoen to read it that is recent.