Virtualization at Home
For that very reason, the ability to run multiple virtual machines might one day be an important feature of the home PC. Running multiple operating systems simultaneously may seem extravagant even to the PC enthusiast. But to the user with one foot in the Windows and one in the Linux or Mac OS camp, it promises a major change for the better: Virtualization technology doesn't care whether its multiple kernels belong to the same OS, so it'll be possible to switch operating environments as easily as Windows users today switch among applications, making dual-booting a thing of the past.
It's also possible that PC operating systems will become less crash-prone in the process: Virtual machines can offer application environments with resource limits and guarantees, providing fault- and error-containment.
Earlier this month, Bohart says, an exec at Intel's Developer Forum in San Francisco showed how at-home virtualization might work. "What he had was a very simple system, it looked like a normal system, and he downloaded Kazaa. Now if you download Kazaa, your system becomes infected with adware and spyware. And instantly after he hit that 'Install' button, it began flooding with pop-ups. But when he opened the [Internet Explorer] window, it was actually running in its own separate partition, and all that adware was contained in that partition."When he closed the IE, he used the Windows Restore feature to roll it back to a clean state," Bohart adds. "And none of the adware or spyware made it into the main partition, which would be where your Quicken or Outlook is."
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