"Like dinosaurs in their time, the monolithic, commercial
operating systems (OSes) have ruled their world for an age. Server
virtualization has heralded a new era, however, and OSes as we have
known them probably won't thrive in it.
"As its uses continue to grow, server virtualization will pose a
major threat to the strategic position that the general-purpose
operating system has long held in the x86 software stack. In this
situation, Microsoft in particular has a lot to lose. So do Linux
and Unix vendors, but these OSes do have advantages in a
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