Question

what is a barcode and QR code?​

Answer 1

Answer:

Explanation: Short for quick response code, a QR code is a type of two-dimensional (2D) barcode that can be read using a QR barcode reader or camera-enabled smartphone with QR reader software. A QR code is able to carry information in both the vertical and the horizontal direction, which is why it is called a 2D barcode.

Answer 2

Answer:

Bar Code:

A machine-readable code in the form of numbers and a pattern of parallel lines of varying widths, printed on a commodity and used especially for stock control.

QR Code:

A machine-readable code consisting of an array of black and white squares, typically used for storing URLs or other information for reading by the camera on a smartphone.

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