Unix, Linux, mainframes and Windows oh, my

Interesting article over at Network Computing about "User Friendly Linux". What struck me as noteworthy was a chart - with stats attributed to Gartner - that they had titled: "What is the makeup of your major enterprise data center?"

• 40% of respondents have Mainframe, Unix, Linux and Windows
• 24% have Unix, Linux and Windows
• 14% have mainframe, Unix and Linux
• 10% have Unix and Windows
• 4% have Mainframe and Windows
• 3% have Linux and Windows
• 1% have Mainframe and Unix
• 0% have Unix servers only

Now if I cut the numbers a different way...

• 95% of respondents have mainframe, Unix, Linux with Windows
• 58% of respondents have a mainframe with Windows
• 37% of respondents have Linux or Unix with Windows - no mainframe

Message: Clearly, the mainframe is still alive and I am willing to bet there are a lot of identities out there that are mainframe-based...

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identity management, Active Directory