Big data refers to the volume of digital data being collected around the world. Everyday, nearly 2.5 quintillion bytes of data are created. This data comes from everywhere: sensors used to gather climate information, posts to social media sites, digital pictures and videos, purchase transaction records, cell phone GPS signals to name a few.Lots of companies are making big data their top priority for 2012 and beyond. Venture capitalists are also pouring huge money in tech start-ups trying to get an early edge on this emerging trend. IBM being on the forefront, Warren Buffett made the company one of his three largest stock positions. Other large players in the big data trend like Teradata and Oracle can also be considered for investment.
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