Microsoft has released their Exchange Server 2010 component architecture poster. From the Microsoft Exchange Team blog:
The poster helps you understand how the major components of Exchange 2010 work and serves as a quick reminder and a learning tool. The printed version also looks really impressive on your wall!
![Exchange Server 2010 Component Architecture Poster Exchange Server 2010 Component Architecture Poster](https://www.practical365.com/wp-content/uploads/2010/10/exchange-2010-architecture.jpg)
You can download the poster in PDF format for free from the Download Center.