QR codes (or quick response codes) are a type of 2D bar code technology that can be decoded using a smartphone (and some mobile phones) with a QR code reader installed.
QR codes began their life in Japan as a method to track auto parts. Today QR codes can be seen on marketing materials such as movie posters, bus ads, billboards, newspaper ads, business cards, flyers and other everyday things.
There are two main things that you have to have when you deal with QR codes:
- A mobile phone with a camera and Internet connectivity
- A QR code reader application
Where do I get a QR code reader?
Many smartphones coming out nowadays have a QR code reader already installed or you can easily download and install a reader from your phone’s app store. Try searching for ‘QR code reader’ or ‘QR code scanner’.

Continue reading What are QR Codes?