Well i dont know that they have direct comparisons, but a good starting place would probably be :
- The home of Redhat Linux
- a usefull resource and forum site.
- home of Apache web servers
- Free software foundation & review site
- always running comparisons
- a good source for microsoft products
- excellent apache resource, news & reviews site
I would have to say, that Linux/Apache would be the way i would choose everytime, firstly stability, it hardly ever crashes.
The need to reboot is low.
Purely from a cost point of view, Linux - Free, Apache - Free, you only have to pay for the hardware.
But you do have to look at the support issues, linux/Unix can be a very specilised role, with alot of people shying away from it, and sticking to the micro$oft products, because the install is easier, the support is easier, all because of the easier GUI interface, rather than being faced with a unix/Linux Shell.
Good luck with the paper, hope you manage to find all the info you need, if i can be of any further help let me know
Regards
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MadAsToast