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Introduction to the New Mainframe: z/OS Basics by Bill Ogden, Wayne O'Brien, Mike Ebbers, John Kettner

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A brief look at IBM mainframe history
This appendix discusses the development of the IBM mainframe from 1964 to the present, as shown in Figure A-1.
Figure A-1 IBM mainframe time line
On April 7, 1964, IBM introduced System/360 (S/360), a family of five increasingly powerful computers that ran the same operating system and could use the same 44 peripheral ...

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