The entire online world is run by data centers. If you think about it, Americans spend on average 4 to 5 hours on the Internet per day, if not more -- using sites like Facebook and Google. Behind these mammoth sites is massive computing power, operated out of the world's most secure locations, strategically located around the globe -- optimizing speed and performance across the web. What does it take to run a data center? How big are they? And, where are they located? This infographc from Wikibon explains in greater detail.

NEW YORK—Hewlett-Packard Co. said it plans to spend $1 billion to automate data centers and make other operational changes in its IT services business, resulting in the cutting of 9,000 jobs over several years.