ComputerWeekly: IBM Says Linux is Cheaper to Run

“IBM has sponsored its own independent research into the total
cost of ownership of Linux-based server systems, when compared with
Microsoft Windows and Sun’s Solaris operating systems.

“The research, conducted by the Robert Frances Group, found that
the TCO of Linux was 40% less expensive than a comparable x86-based
Windows solution, and 54% less than a comparable SPARC-based
Solaris solution…”

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