Can your mobile read the adjacent code? The collection of small dots in the code is 94 words long and it can tell a whole story:
A QR Code is a specific matrix barcode (or two-dimensional code), readable by dedicated QR barcode readers and camera phones. The code consists of black modules arranged in a square pattern on a white background. The information encoded can be text, URL or other data.
Common in Japan, where it was created by Toyota subsidiary Denso-Wave in 1994, the QR code is one of the most popular types of two-dimensional barcodes. QR is the abbreviation for Quick Response, as the creator intended the code to allow its contents to be decoded at high speed.
My mobile phone reads a short text instantly. It took a little while to read the long text. In contrast to the bar code, that can contain up to 20 characters, this small square can contain up to 7,089 characters.
"xnepali.com" looks like the code posted on the right. The difference between the densities of the dots in the two codes is clear to indicate how long the text it contains.
You can generate a code for "I like xnepali.com" by clicking in the link.