According to Wikipedia, big data is a term applied to data sets whose size is beyond the ability of commonly used software tools to capture, manage, and process the data within a tolerable elapsed time. Big data sizes are a constantly moving target currently ranging from a few dozen terabytes to many petabytes of data in a single data set. Big data consists of datasets that grow so large that they become awkward to work with using on-hand database management tools. Difficulties include capture, storage,search, sharing, analytics, and visualizing. This trend continues because of the benefits of working with larger and larger datasets allowing analysts to spot business trends, prevent diseases, combat crime.
Big data is a trend that's always on the forefront of tech investor's minds. Yet, the promise always seems to be slightly ahead of the growth rates many of the industry's largest players are seeing. However, Teradata's first-quarter earnings show that the future might be now for big data plays. Teradata has long been a leader in data analytics, one important part of big data. Data analytics is increasingly used by companies to mine a mass influx of information accumulating via the Internet and other computer networks. Teradata provides tools to analyze this data, including software applications and data warehouses.
For more detail about big data analytics, may see a good article "Big Data Analytics – A Rapidly Emerging Market".
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