What is a QR Code?

So, you might have heard about QR code and it is set to become the “next big thing”, yet still wondering to yourself that, what is a QR code? QR codes come from Japan where they are so common. A QR code is a two-dimensional (2D) barcode which is readable by smart phones. QR codes allow to encode more than 4000 characters in a two dimensional barcode. They might be used to display text to the user, to open a website address (URL), save a contact to the address book or to compose text message. In fact, “QR Code” is a registered trademark of a DENSO WAVE INCORPORATED.

The QR code system has become popular outside the automotive industry because its fast readability and greater storage capacity in compared with standard UPC barcodes.

There are many applications using QR code, such as document management, time tracking, product tracking, item identification, general marketing, and so on. A QR code contains black modules – square dots – arranged in the square grid on a white background that could be ready by an imagining device like a camera of your smart phone. Source: http://qrcodegenerator.wikiyeah.com/what-is-a-qr-code.php

 

QR code (abbreviated from Quick Response Code) is the trademark for a type of matrix barcode (or two-dimensional barcode) first designed for the automotive industry in Japan. A barcode 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) to efficiently store data; extensions may also be used.^[1]

The QR Code system has become popular outside the automotive industry due to its fast readability and greater storage capacity compared to standard UPC barcodes. Applications include product tracking, item identification, time tracking, document management, general marketing, and much more.^[2]

A QR code consists of black modules (square dots) 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. The required data are then extracted from patterns present in both horizontal and vertical components of the image. Source: http://en.wikipedia.org/wiki/QR_code

 

They come to us from Japan where they are very common. QR is short for Quick Response (they can be read quickly by a cell phone). They are used to take a piece of information from a transitory media and put it in to your cell phone. You may soon see QR Codes in a magazine advert, on a billboard, a web page or even on someone’s t-shirt. Once it is in your cell phone, it may give you details about that business (allowing users to search for nearby locations), or details about the person wearing the t-shirt, show you a URL which you can click to see a trailer for a movie, or it may give you a coupon which you can use in a local outlet. http://searchengineland.com/what-is-a-qr-code-and-why-do-you-need-one-27588