Danger! Acronym overload!!!
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I guess they didn't look at redundancy or reliability in their cost equation..."So we marched down the road of the Windows platform. We don't have any Unix; we don't have an AS/400; we don't have any mainframes — we don't have anything outside of Windows. There has been tremendous cost savings.
...everything's Windows. Every technician that works on a server works on a Windows server. Every technician working on a desktop works on a Windows desktop. That's quite a bit easier than other flavors of desktops or OS/2 or whatever else is out there.