[Locke1689]

Actually, this is mostly wrong.

While Windows and Office are still major components, what was formerly called Server Tools & Business (STB) makes a large amount of money (sometimes more than Windows) and has exhibited the most growth of any division over the past couple years.

In addition, what you refer to as Office is really the Business division, which includes Dynamics (a billion dollar business) so Office really doesn't hold all of the sway you lend it.

[astrodust]

Windows includes Windows Server, and Office is their sprawling business suite. It's hard to say where one stops and one begins, as SQL Server is sort of in both camps.

[mynameisvlad]

Windows does not include Windows Server, in Microsoft-land. Windows Server is definitely in the Server and Tools Business (now Enterprise and Cloud). SQL Server is also in Enterprise and Cloud.

[astrodust]

Is there a chart or diagram which breaks down what's what?

[mynameisvlad]

That chart would probably be pretty big. Here's a description of the pre-reorg divisions.

http://www.microsoft.com/about/companyinformation/ourbusines...

And an incredibly brief and vague description of the new Engineering Groups:

http://www.microsoft.com/en-us/news/press/2013/jul13/07-11on...