Qr Code Kab Bana | Birth of QR Code

The Japanese firm Denso Wave created the QR code, also known as a matrix barcode or two-dimensional barcode, in 1994. QR stands for "rapid response code."

 A barcode is an optical label that can be read by a computer and contains data about the object to which it is attached.

Numeric, alphanumeric, byte/binary, and kanji are the four standardized encoding types used by QR codes to store data effectively.

Due to the quick reading and larger storage capacity of the quick response system compared to normal UPC barcodes, it gained popularity outside of the automobile industry. Applications include document management, general marketing, product tracking, item identification, and time monitoring.

Qr Code Features:

Comparing QR Code to traditional bar codes, the following characteristics are offered.

High Capacity Encoding of Data The greatest number of digits that can be stored in a normal bar code is around 20, whereas a QR Code can handle dozens to hundreds of times more data. All data types, including numeric and alphabetic letters, Kanji, Kana, Hiragana, symbols, binary, and control codes, can be handled by QR Code. Each symbol has the capacity to encode up to 7,089 characters. 2. Small Printout Size Since a Birth of  QR Code can encode the same amount of data in around one-tenth the space of a conventional bar code, this is possible because a QR Code may carry information both horizontally and vertically. (Micro QR Code is provided for printouts that are smaller in size.) 3.Kanji and Kana Capability The JIS Level 1 and Level 2 kanji character sets can be encoded using the Japanese-developed symbology known as the QR Code. One full-width Kana or Kanji character may be effectively encoded in 13 bits for Japanese, allowing QR Code to contain more than 20% more data than other 2D symbologies. 4. Dirt and Damage Resistant Error rectification is possible with QR codes. Even if the symbol is partially soiled or damaged, data can still be recovered. Codewords can only be restored to a maximum of 30%*1*2. Adoption Nowadays, the usage of QR codes is considerably more widespread, encompassing both commercial tracking apps and user-friendly mobile applications (termed mobile tagging). To show text to the user, opening a webpage on the user's device, adding a vCard contact, opening a Uniform Resource Identifier (URI), connecting to a wireless network, or creating an email or text message are all possible uses for QR codes. One of the most popular two-dimensional code forms is the QR code. Uses The use of QR codes in consumer advertising has increased. Typically, a smartphone is used to read QR codes, display them, and transform them into usable forms (such as a standard URL for a website, thereby obviating the need for a user to type it into a web browser). Since it makes it possible to access a brand's website more quickly than by manually entering a URL, QR codes have become a focus of advertising strategy. Beyond simply being convenient for the consumer, this feature is important because it raises the conversion rate or the likelihood that contact with the advertisement will result in a sale. 1. Mobile operating systems On a variety of mobile device operating systems, QR codes may be utilized. Without installing external software, some Android devices and iPhones running iOS 11 and higher[30] can natively read QR codes. The camera app on iPhones can scan QR codes and display the kind of code and the link (both on Android and iPhone). Because these devices enable URL redirection, QR codes can convey information to already installed applications. There are several premium and unpaid programs that can scan the codes and create a hard link to an external URL. 2. Virtual stores In "virtual shops," a gallery of product details and QR codes are offered to the client, for example, on the wall of a train station. The items are delivered to the clients' houses when they scan the QR codes. The concept of the Virtual Store has already been embraced by Walmart, Procter & Gamble, and Woolworths. This application first emerged in South Korea and Argentina. 3. QR code payment Bank account or credit card numbers can be stored in QR codes, or they can be created expressly to function with a given payment provider's application. Around the world, there are several trials used for QR code payments. Payment via QR code is a highly common and practical payment option in developing nations like Bangladesh, China, and India. Mobile payment has been widely used in China since Alipay created a QR code payment system in 2011. Around 83% of all payments were made via mobile devices as of 2018. The Monetary Authority of Singapore and the Infocomm Media Development Authority were part of the task force Singapore established in 2017 to lead the development of a system for electronic payments utilising standardised QR code specifications. These particular measurements are tailored for the Singaporean market. Singapore Quick Response Code (SGQR), an electronic payment system, effectively combines several QR codes into a single label that can be used by both parties in the payment system. This enables different banking applications to make it easier for clients to make payments to a business that displays the same QR code. 4. Website Login QR codes may be used to log onto websites. When a registered user scans a QR code with a confirmed smartphone on the login page of a computer, they are immediately logged in. The smartphone contacts the server to authenticate itself. In January 2012, Google tested this kind of login procedure   5. Mobile ticket  A QR code may be shown on a device, such as a smartphone, and used as an entrance ticket through a system. It is frequently used in Japan for tickets to the J1 League and Nippon Professional Baseball. In rare circumstances, rights can be transferred online. 6. Ordering in a restaurant Restaurants can place a QR code at the entrance or on the menu to drive customers to an online ordering website or app where they can place their order and perhaps pay for their meal without needing a cashier or waiter. Additionally, daily or weekly specials that are not shown on the conventional menus may be accessed through QR codes, allowing the restaurant to update the whole menu without having to print duplicates. With the use of QR codes, diners at table-service restaurants may place orders and pay for their meals without the assistance of a waiter because the codes include the table number. This application has become more popular, especially after the 2020 COVID-19 pandemic required social distancing, which resulted in fewer interactions between service personnel and consumers.

QR Code Data capacity
Numeric Only	Max. 7,089 characters
Alphanumeric	Max. 4,296 characters
Binary (8 bits)	Max. 2,953 bytes
Kanji, full-width Kana	Max. 1,817 characters