So what is that mess of black and white dots that looks like your printer just threw up? Well, it’s called a QR code, which is short for quick response code. Developed in 1994 by Toyota, it is a new version of a two dimensional barcode. The UPC symbols that you see on most products these days is a one dimensional barcode. QR codes contain more data than UPC symbols. QR codes have been appearing everywhere lately- from webpages to magazines to business cards to billboards.
So now you’re thinking that’s real nice and all, but what does that mean to me and my Droid 2? The Android operating system that your phone uses is able to read these QR codes. Just open any barcode app (like the highly popular Barcode Scanner app), and scan the QR code. The phone will open the appropriate app and take you to the info the QR contains - usually a web page. The QR code at the top of this blog post will take you to the main webpage of the How 2 Droid 2 blog. If you scan a QR code for a cell phone app, it will open the Android App Market so you can download the app with a couple of touches.
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