If you know what the image on the left is, you may well scan it using your smartphone to be led to this website's homepage automatically.
It's called a QR code (Quick Response code). These are the modern version of the BAR codes. It can contain information in text, numbers, binary, URL, etc.
To read the information, a scanner is focused on it. It was originally developed by Toyota in 1994 to track vehicle parts in production. Nowadays we can use QR scanner apps on phones to read such codes through the phone's camera.
Numerous applications are possible with QR codes including advertising, website log in, payments and social networking. We will now see what the future holds for QR code and whether NFC will take over?
