If you have a business to run, the last thing you need is a server to manage. That's the fundamental appeal of cloud services, which take away the hassle of paying for expensive hardware, managing licenses, patching software (and worrying about the consequences if you don't), and fielding calls from angry users when something goes wrong.

Office 365 could be the poster child for this new wave of cloud services. Instead of managing your own Exchange and SharePoint servers, you let Microsoft do the hard work in its data centers.

For large enterprises, this is a matter of shifting on-premises servers to the cloud, and Microsoft's o ...

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