My hardware is Dell PowerEdge R710 64-bit, but the operating system is 32-bit Windows 2008. Please comment on the pros and cons of the following OS and hardware combination.
Q#1. 32-bit OS on 32-bit hardware
Q#2. 32-bit OS on 64-bit hardware
Q#3. 64-bit OS on 32-bit hardware
Q#4. 64-bit OS on 64-bit hardware