Characteristics of a QR Code
A QR code is very versatile and is found useful in a number of places owing to its unique features. These include:
- Alphanumeric, Kanji, as well as Kana Data Storage: Unlike a barcode, a QR code can contain information in not just alphanumeric data, but also in the Kanji and Kana characters. This makes them hold more data than any other 2-Dimesional symbol can hold.
- 360 Degrees Readability: The 3 square eyes that are present on a QR code, work as a position detection system. This makes them readable from any direction at all 360 degrees at high speed.
- High Data Storage Capacity: A QR code can hold much more data than conventional bar codes, that is, many hundred times more than the 20 digits that barcodes can store. Moreover, not just characters, it can also hold other things like binary digits, codes, and web links.
- Appending Data within One QR Code: A QR code can store a variety of data as it allows the division of area within itself. Thus, one area can be used for printing purposes when the area of printing is not much.
- Error Correction: A QR code can be read efficiently even if it is damaged in some area or if it is covered in dirt.
- Small print Size: Since the barcodes were only horizontal, they took more space than what a QR code can easily fit. Moreover, for even smaller spaces, micro QR codes are available.
qr code full form
Ever opened WhatsApp on your PC or Laptop by scanning a black square box that seems to be colored unevenly in pixels? Well, that square box is nothing but a QR code. QR code is a 2-Dimensional bar code in the form of a matrix. It is like a label that can be read by machines to fetch the needed information they contain. Just like a barcode, which is 1-dimensional, is read using a scanner, a QR code can be scanned using our phones.