PC-based IBM mainframe-compatible systems: Difference between revisions

Revision as of 14:19, 31 December 2007

Revision as of 06:46, 3 March 2008

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==Background==

Up until the mid 1990's, mainframes were very large machines that often occupied entire rooms. The rooms were often air conditioned and had special power arrangements to accommodate the [[3three-phase electric power]] required by the machines. Modern mainframes are now physically comparatively small and require little or no special building arrangements.

==System/370==