The history of 64-bit computing is quite varied and interesting. Companies like Cray started using 64-bit registers in their systems in the mid-1970s, however pure 64-bit computing didn’t really come ...

If you're a member of this or any other technology-based forum, odds are that you've noticed the several versions of Microsoft's latest offering, Windows Vista. If you haven't, well... please come out ...

Ask Ars was one of the first features of the newly born Ars Technica back in 1998. And now, as then, it's all about your questions and our community's answers. Each week, we'll dig into our bag of ...

Windows on Arm: This is how well 64-bit emulation is working Your email has been sent 64-bit apps on Windows on Arm are a work in progress: some are native, many work well with the new 64-bit ...

Your new computer has a 64-bit processor, but your software probably is still 32-bit. Why haven't software developers done more about it? Why are you using 32-bit software on your 64-bit computer? If ...

This HEXUS.help guide explains what AMD's AMD64 CPU instruction set architecture (ISA) is, shows what CPUs implement it from both AMD and Intel, and explains what software is available to run on those ...

Ten years ago this week, AMD launched the first consumer x86 64-bit processors, the Athlon 64 FX-51 and Athlon 64 3200+. It remains one of the most exciting products that I ever covered -- the ...