What Is QR code? How Is It Revolutionary In Information Technology?


New Delhi: Since the entire world is digitalized, if you are not updated with information about new technologies, you are surely living in the outdated world. ‘QR code’ is a new technology that enables a Smartphone user to get information, download or watch videos and provides access to particular page.

What is exactly QR code?

QR code, abbreviated from Quick Response Code, is the trademark for a type of matrix barcode or two-dimensional barcode. It was first designed in 1994 for the automotive industry in Japan. It is a machine-readable optical label that contains information about the item to which it is attached.

A QR code uses four standardized encoding modes- numeric, alphanumeric, byte/binary, and kanji.

Nowadays, it became very popular in almost all industries due to its fast readability and greater storage capacity compared to standard UPC barcodes.

The code consists of black squares arranged in a square grid on a white background, which can be read by an imaging device such as a camera, and processed using Reed–Solomon error correction until the image can be appropriately interpreted.

How to use a QR Code

  • Users need to install QR Code reader on the Smartphone and scan your QR Code.
  • Hold your device over a QR Code so that it can be visible on the phone screen.
  • In some cases, the user needs to press a button to snap a picture
  • After reading the QR Code, your phone will be navigated to the desired destination.

Once you land on the desired page, you would be able to get programmed information or download the data. The technology is also used for commercial purposes. A company can upload all product information in a QR Code and millions of customers can download the information after scanning the code.


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