文件名称:7-things-you-should-know-about-qrcode
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QR codes are two-dimensional bar codes that can contain any
alphanumeric text and often feature URLs that direct users to sites
where they can learn about an object or place (a practice known
as “mobile tagging”). Decoding software on tools such as camera
phones interprets the codes, which represent considerably more
information than a one-dimensional code of similar size.
QR codes are two-dimensional bar codes that can contain any
alphanumeric text and often feature URLs that direct users to sites
where they can learn about an object or place (a practice known
as “mobile tagging”). Decoding software on tools such as camera
phones interprets the codes, which represent considerably more
information than a one-dimensional code of similar size.
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7 things you should know about qrcode.pdf