If only it were as simple as that. Did you read post 20?hatsoff said:Isn't Windows Vista 64-bit?
Windows Vista supports 64-bit extensions, yes. It is fully functional, however, with older 32-bit limited CPUs.
Here are a couple of articles that recommend that most home users run the 32-bit version of Vista because of all the headaches involved with the 64-bit version:
Vista: Should I Install 64-bit or 32-bit Version? (x64 vs x86)
32-bit Vs. 64-bit Systems: What's The Difference?
32-bit Vs. 64-bit Systems: What's The Difference?
But the 32-bit version won't even be able to play next-gen DVDs, an appealing feature to most home users.
Users who don't like the major tradeoffs involved in choosing a Vista platform ought to consider buying a Mac instead:
64-bit Leopard knocks spots off Vista
...
Windows Vista will come in a multitude of flavours: six at the last count. And it's said that all of these, bar the starter edition, will come with the added 64-bit support needed for modern CPUs - but the 64-bit versions will be completely different installable builds.
The 64-bit installation will come with a 32-bit emulation layer called WOW (Window on Windows, and nothing to do with orcs and elves) which will, as you can probably guess, allow you to run your old 32-bit apps on your shiny new 64-bit Vista, via emulation. 32-bit hardware drivers will not work.
...
There will be just one version of workstation-based Leopard (plus an accompanying server edition), and it will come with 64-bit and full non-emulated 32-bit support.
Starting with Xcode 2.4, the OSX Universal binary format has been extended to support 32-bit and 64-bit for both PPC and Intel processors inside the same file, giving OSX quad universal binaries. Users don't have to choose between processor architectures nor 32-bit or 64-bit processors, either at the OS or application layers, it's all abstracted away from them - as it should be.
Note that the non-emulated support in OSX is for applications and drivers. 32-bit programs on Vista 64 need to work on WOW emulation to run in Vista, and 32-bit drivers are a no-no. Lack of driver support is the main reason Windows XP x64 hasn't been widely adopted, and why the Vista fudge will ensure hardware incompatibilities between the two Windows versions remain for sometime to come.
This is quite a boon for OSX, and one that should be highlighted frequently and often.
...
Windows Vista will come in a multitude of flavours: six at the last count. And it's said that all of these, bar the starter edition, will come with the added 64-bit support needed for modern CPUs - but the 64-bit versions will be completely different installable builds.
The 64-bit installation will come with a 32-bit emulation layer called WOW (Window on Windows, and nothing to do with orcs and elves) which will, as you can probably guess, allow you to run your old 32-bit apps on your shiny new 64-bit Vista, via emulation. 32-bit hardware drivers will not work.
...
There will be just one version of workstation-based Leopard (plus an accompanying server edition), and it will come with 64-bit and full non-emulated 32-bit support.
Starting with Xcode 2.4, the OSX Universal binary format has been extended to support 32-bit and 64-bit for both PPC and Intel processors inside the same file, giving OSX quad universal binaries. Users don't have to choose between processor architectures nor 32-bit or 64-bit processors, either at the OS or application layers, it's all abstracted away from them - as it should be.
Note that the non-emulated support in OSX is for applications and drivers. 32-bit programs on Vista 64 need to work on WOW emulation to run in Vista, and 32-bit drivers are a no-no. Lack of driver support is the main reason Windows XP x64 hasn't been widely adopted, and why the Vista fudge will ensure hardware incompatibilities between the two Windows versions remain for sometime to come.
This is quite a boon for OSX, and one that should be highlighted frequently and often.
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