Electric power payment, scanning of air tickets: why QR codes it is convenient

@Altapress
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On April 3, 1973 the world learned about a new way of storage of information — in Shaped code. Slightly more than 40 years later it the matrix QR code started forcing out. Founders assure — it opens new opportunities and simplifies life. About that as well as why to read out QR codes — in material information portal "Altapress.ru"...