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What is a barcode and QR code?​

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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.



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