QR Code

  • QR code (Quick Response code) is a two-dimensional (matrix) machine-readable bar code made up of black and white square.
  • This code can be read by the camera of a smartphone.
  • It is used for storing URLs or other information that link directly to text, emails, websites, phone numbers.
  • It is capable of 360 degrees (omni-directional), high speed reading.
  • QR Code can store up to 7089 digits as compared to conventional bar codes which can store max 20 digits.
  • It encodes same amount of data in one-tenth the space of a traditional bar code.
  • It carries information both horizontally and vertically.
  • It has error correction capability and data stored in it can be restored even if it is partially damaged or dirty.