Snow Leopard's across-the-board leap to 64-bits, from the kernel to all of its bundled apps, will do more than just make more memory available. It will also have a significant positive impact on ...

At last year's WWDC, Steve Jobs announced that Leopard would support 64-bit computing across the board: not only on the Unix command line as in Tiger, but also in Carbon and Cocoa. But… During ...

Address Translation Services (ATS) is a mechanism in PCIe that allows devices to request address translations from the Input/Output Memory Management Unit (IOMMU). This is particularly important where ...

Remember the early 90's when we were transitioning from 16-bit to 32-bit operating systems? Some people were unimpressed, but I think most of us could see that 32-bit systems were going to solve an ...

Q: I’ve seen much news about 64-bit systems lately. Vendors claim 64 bits are faster than 32 bits, and it seems the fastest CPUs have 64-bit capability. Can I take advantage of 64-bit operations to ...

I've waited quite some time to take a look at x86-64, because I wasn't too enthused about it when it was first announced. But the more I've read about it, the more I've come around, and at this point ...

Ken wrote in saying he loves PCWorld, natch, and that he wants to know the difference between 32-bit and 64-bit operating systems. I have to admit this isn’t something I’ve thought about in a long ...