Khodi ya QR, dzina lonse la Quick Response Code, yomwe imadziwikanso kuti "Quick Response Code", ndi kachidindo kakang'ono kawiri, komwe kudapangidwa ndi kampani yamagalimoto yaku Japan ya Denso Wave mu 1994, komanso woyambitsa wamkulu wa QR code Yuan Changhong. chifukwa chake amadziwika kuti...
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