Can I purchase a Mac computer and install an operating system that is not developed by Apple?

Yes it is possible. There are two popular software packages that make it possible. Parallels and VMware fusion.

After installing one of these software packages you can then install other operating systems on your Mac. I've got Windows installed on my Mac via VMware and it actually works better on a Mac then it does on a PC. You can also run both operating systems (Mac OS and Windows) seamlessly at the same time.

http://www.parallels.com/products/desktop/ http://www.vmware.com/products/fusion.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.