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By its own count, Wal-Mart has 460 terabytes of data stored on Teradata mainframes, made by NCR, at its Bentonville headquarters. To put that in perspective, the Internet has less than half as much data, according to experts.
With 3,600 stores in the United States and roughly 100 million customers walking through the doors each week, Wal-Mart has access to information about a broad slice of America .
Eventually, some experts say, Wal-Mart will use its technology to institute what is called scan-based trading, in which manufacturers own each product until it is sold.
"Wal-Mart will never take those products onto its books," said Bruce Hudson, a retail analyst at the Meta Group, an information technology consulting firm in Stamford, Conn. "If you think of the impact of shedding $50 billion of inventory, that is huge."
via
New York Times
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