This wave utilizes a range of technologies, from older tools like bar codes to newer technologies like QR (Quick Response) codes.

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In the age of the QR (Quick Response) code, information from sources like mobile devices and social media, as well as all kinds of new specialized applications, is growing faster in the cloud.

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People waiting for trains in the subway were presented with a wall of products from the store, each with a QR code (Quick Response code) next to it.

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When scanned, a 1.5in (4cm) Quick Response (QR) code on the memorial launches a biography web page of the deceased on a smartphone or computer.

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As well as free wi-fi, it said the money would also fund signs with Quick Response (QR) codes which visitors would be able to scan on their smart phone to be directed to events and offers in the area.

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Quick Response, or QR, codes are a type of barcode loaded with information that, when scanned with a phone or other device, can open a web page, social media site or video (users first need to download an app, available for iPhone, iPad and Android).

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Especially when it comes to security breaches done through fake quick response codes, or QR codes (crossword puzzle looking bar code scan-able by some smart phones), the iPhone is a lot safer, he says.

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