Linked by Thom Holwerda on Wed 21st Jan 2009 11:30 UTC
We've been able to drop the world of 32bit for a while now, with 64bit processors and support for them being prevalent in all popular, modern operating systems. However, where Mac OS X and Linux seem to make the move to 64bit rather effortlessly, Windows has more problems. Even though 32bit applications should run fine on 64bit Windows, some don't; and to make matters worse, drivers need to be 64bit, as there's no support for 32bit drivers in 64bit versions of Windows. Still, Gizmodo claims that with Windows 7, the time is right to take the plunge. But really, is it so? And why do Linux and Mac OS X seem to handle the transition so much easier?
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Member since:
2006-01-11
32bits OSes are limited to 4GB per application
Since the Pentium Pro (1995), x86 can have at least 36bits (=64GB) of physical address space.
I don't know whether current OSes use it though.