Tech Titans Clash in ‘Cloud’

Google Inc., Microsoft Corp. and Amazon.com Inc. have fought each other for dominance in mobile gadgets and Web searches. The latest front in their war is invisible: computing horsepower.Microsoft and Google are increasingly trying to unseat Amazon in the lucrative business of renting out computing storage and number-crunching to thousands of companies.Amazon dominates the market through its Amazon Web Services business, or AWS, which helps companies handle digital tasks, such as streaming Netflix Inc. movies over the Internet, and analyzing auto-accident records at insurance consultant Validus.
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