A: Microsoft has released an updated poster showing all the Windows Server 2012 (formerly code-named Windows Server 8) Hyper-V components.
It's available at the Microsoft download page and has a great level of detail, as you can see in this screen shot.

Windows Server 2012 Hyper-V poster
Other posters are available for earlier versions:
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Windows Server 2008 Hyper-v Component Architecture SP1
- Hyper-v Component Architecture
- Windows Server 2008 R2 Component Posters
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Windows Server 2008 Component Posters
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