Category: Uncategorized

  • Invention of QR code

    📱🔍 The QR code wasn’t invented for marketing — it was created because factory workers kept making one simple mistake. In the 1990s, a Japanese company named Denso Wave faced a growing problem in their factories: Workers had to scan hundreds of tiny barcodes on car parts.The barcodes were slow, confusing, and easy to mis-scan. One engineer, Masahiro Hara,…

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