On Thu, Feb 11, 2010 at 12:04 PM, Jim <mickeyboa@xxxxxxxxxxxxx> wrote: > > Am I wrong or right that this computer will take a FC12 32 or 64bit > install. Core 2 Duos are 64-bit processors, so you can install the 64-bit Fedora. However, all the x86_64 (aka AMD64) CPUs can run in 32-bit mode. So you can install the 32-bit Fedora instead if you choose. My MacBook Pro is a Core Duo, but not a Core 2 Duo. The "Non-Two" Core Duos are 32-bit only, so when I finally get around to Linuxizing my laptop, it will have to be 32-bit only. When one has a choice of either 32-bit or 64-bit, there are certain advantages and disadvantages to each choice. The main advantage of 64-bit is that, if your motherboard supports it, you can install more than 4 GB of memory. That would enable you to run lots of programs simultaneously without any virtual memory paging. I have 16 GB in my F11 Core 2 Quad Xeon box, and I never, ever have to hit the swap file. Even with less then 4 GB of memory, it is possible for software to run faster in 64-bit mode than 32-bit mode, because the x86_64 Instruction Set Architecture adds some general purpose registers that aren't present in 32-bit. Whether that helps your particular situation would depend very much on the software you use. (Tastes Great! Less Filling!) Hope That Helps, Don Quixote -- Don Quixote de la Mancha quixote@xxxxxxxxxxxxxxxx http://www.dulcineatech.com Dulcinea Technologies Corporation: Software of Elegance and Beauty. -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines