Microsoft chairman and chief software architect Bill Gates will announce availability of four new 64-bit versions of the Windows operating system at the company's WinHEC conference for hardware ...

At its annual Windows Hardware Engineering Conference (WinHEC) here last week, Microsoft Corp. outlined its latest plans for Longhorn and 64-bit Windows, as well as a proposal designed to help users ...

And when they get Longhorn, they can decide to run that in 32-bit mode or 64-bit mode. Because the 64-bit mode does such a good job running 32-bit applications, there's almost no downside if you have ...