What is Big Data?

With the hype on big data, It is hard to read a technology article today without encountering “Big Data”.  A number of technologies and terms get mentioned in the context of Big Data, with Hadoop chief among them, “data scientist” often not far behind and sometimes NoSQL thrown in for good measure.

But what is really Big Data?

Big Data is about the technologies and practice of handling data sets so large that conventional database management systems cannot handle them efficiently, and sometimes cannot handle them at all.

Is this a good definition?  Is there a better definition?

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