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What are Mainframes?

Mainframes solutions mindshare

As of March 2025, in the Mainframes category, the mindshare of Fujitsu Server GS21 is 28.2%, up from 23.5% compared to the previous year. The mindshare of Unisys ClearPath Dorado is 13.6%, up from 12.5% compared to the previous year. The mindshare of IBM Z Systems is 39.1%, down from 41.6% compared to the previous year. It is calculated based on PeerSpot user engagement data.
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