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Ever wonder what those weird black-and-white square codes are? Here's how to read them with an iPhone, a BlackBerry, or an Android smartphone.
QR codes can house a whole lot of data, from the URL of a webpage or service, to where to directly download an app. Here's how to scan them.
Tá torthaí a d'fhéadfadh a bheith dorochtana agat á dtaispeáint faoi láthair.
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