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QR Codes

QR Codes Unit

QuestionAnswer
What is a QR Code? It is the trademark for a type of matrix barcode (or two-dimensional bar code). It features fast readability and greater storage capacity compared to standard UPC barcodes
What are they made up of? The code consists of black modules (square dots) arranged in a square grid on a white background.
How are they detected? QR code is detected as a 2-dimensional digital image by a semiconductor image sensor and is then digitally analyzed by a programmed processor.
What does the processor have to locate to scan the code properly? The processor locates the three distinctive squares at the corners of the image, and uses a smaller square near the fourth corner to normalize the image for size, orientation, and angle of viewing
What does a QR code link to? A URL
What does the QR in QR code stand for? Quick Response
Who is the best ICT teacher EVer Mrs. B
Created by: Ms.Steph
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