Read the following article https://businesstech.co.za/news/technology/578330/th...
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Read the following article https://businesstech.co.za/news/technology/578330/this-south-african-university-will-start-offering-its-degrees-on-the-blockchain/?fbclid=IwAR2OgQXt5MdI4O4we2MEEDY8Q2Uey2GNkL3Q19NNSaND7U1wwvjf81AMGeUT The article refers to QR codes. Do your own research on QR codes. Visibly, a QR code is a black and white _____.
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