QR CODE

Why in news?

• The government has deferred the requirement of printing dynamic Quick Response code on business to consumer invoices by two months till Dec. 1.
• A QR Code help users verify the details in the digitally signed e-invoice

About QR code:

• A QR code (abbreviated from Quick Response code) is a type of matrix barcode (or two-dimensional barcode) first designed in 1994 for the automotive industry in Japan.
• A QR 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 until the image can be appropriately interpreted.
• The required data is then extracted from patterns that are present in both horizontal and vertical components of the image
•  In practice, QR codes often contain data for a locator, identifier, or tracker that points to a website or application.
• The Quick Response system became popular outside the automotive industry due to its fast readability and greater storage capacity compared to standard UPC barcodes.  
• They also have higher error tolerance ie the code remains readable even if significant parts of it is damaged.
• Applications include product tracking, item identification, time tracking, document management, and general marketing.

PRELIMS QUESTION

Consider the following statements regarding QR Codes:
1.It was first developed in India.
2.They have greater storage capacity compared to standard UPC barcodes.  
Which among the above statements is/are correct?
(a)1 only 
(b)2 only 
(c)Both 1 and 2
(d)Neither 1 nor 2

 Answer to Prelims Question