What does 'big data' really mean?

Big data is an IT buzzword nowadays, but what does it really mean? When does data become big?

At a recent Big Data and High Performance Computing Summit in Boston hosted by Amazon Web Services (AWS), data scientist John Rauser mentioned a simple definition: Any amount of data that's too big to be handled by one computer.

Source: http://www.infoworld.com/d/business-intelligence/what-does-big-data-really-mean-192868?source=rss_business_intelligence

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