Written on 1/11/2010 02:27:00 PM by poison_ivy
If you've been using the Internet for some time now, you might have noticed that there are barcodes either in people's avatars or signatures in forums, some have them on their blogs and webpages. These barcode-like icons you have seen which are square and have have smallers squares inside them are called QR codes or 2D barcodes. QR codes have information such as text, a website URL, or a phone number.
You can scan QR codes using your mobile phone's camera but you need a software to do so. To search for QR code scanner for your mobile phone, just do a google search for "qr code scanner
You can also easily generate a 2D barcode for yourself using any of the free QR codes generator on the Internet. In my case, I use http://qrcode.kaywa.com/.