IBM zSeries ==>
IBM 370ESA
<computer, IBM> (Enterprise System Architecture) An IBM mainframe
computer introduced in 1988. Successor to the IBM 370XA had enhanced access
registers that allowed access to other forms of virtual memory. This enhancement
allowed more data storage in main and virtual memory, reducing I/O operating and
improving speed and efficiency. The IBM 370ESA was rebranded as the IBM390, and
later as the zSeries.
(2004-06-06)
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