FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -QR code stands for Quick Response Code. It is the trademark or a type of 2D bar code that contains a matrix of dots. It was first designed or invented in Japan in 1994 by a Japanese automotive company Denso Wave to track vehicles during manufacturing.

Detailed explanation-2: -Three corners of the QR Code contain the finder pattern, a nested series of black and white squares that, when detected by an optical scanner and interpreted by software, allow the scanning device to determine the orientation of the QR Code. Two other patterns are also present.

Detailed explanation-3: -A QR code (an initialism for quick response code) is a type of matrix barcode (or two-dimensional barcode) invented in 1994 by Japanese company Denso Wave. A barcode is a machine-readable optical label that can contain information about the item to which it is attached.

Detailed explanation-4: -QR code and Data Matrix are two-dimensional barcodes (2D). It means that the information is stored horizontally and vertically in the square that represents it using pixels. This type of technology can therefore contain a lot of information!

Detailed explanation-5: -When the background is darker than the QR Code’s foreground, it’s called an inverted Code. These types of Codes typically have a dark background such as black, navy or dark grey. While a few scanners can read an inverted Code, some apps are not able to scan them.