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IBM System/370-XA is an instruction set architecture introduced by IBM in 1983 with the IBM 308X processors. It extends the IBM System/370 architecture...

The IBM System/370 (S/370) is a range of IBM mainframe computers announced as the successors to the System/360 family on June 30, 1970. The series mostly...

a family of IBM virtual machine operating systems used on IBM mainframes System/370, System/390, zSeries, System z and compatible systems, including the...

IBM Enterprise Systems Architecture is an instruction set architecture introduced by IBM as ESA/370 in 1988. It is based on the IBM System/370-XA architecture...

The IBM 3090 family is a family of mainframe computers that was a high-end successor to the IBM System/370 series, and thus indirectly the successor to...

market with the 7000 series and the later System/360, followed by the System/370. Current mainframe computers in IBM's line of business computers are developments...

is the most commonly used operating system on the System/370, System/390 and IBM Z IBM mainframe computers. IBM developed MVS, along with OS/VS1 and...

hardware platforms, including the IBM RS/6000 series and later Power and PowerPC-based systems, IBM System i, System/370 mainframes, PS/2 personal computers...

Aid (VM/XA MA) - Intended for MVS/370 to MVS/XA migration Virtual Machine/Extended Architecture Systems Facility (VM/XA SF) - new release of VM/XA MA with...

1960s, 370 for 1970s. Enterprise System/9000 (ES/9000), as in 360 for 1960s, 370 for 1970s. Enterprise Systems Architecture/390 (ESA/390) was IBM's last...

Operating System/Virtual Storage 1, or OS/VS1, is a discontinued IBM mainframe computer operating system designed to be run on IBM System/370 hardware...

1964, and the System/370 from the 1970s. Many applications written for these systems can still run unmodified on the newest IBM Z system over five decades...

microcode to execute many of the System/370's processor instructions, so that it could run a slightly modified version of IBM's APL mainframe program interpreter...

3084 on September 3, both in 1982. The IBM 308X line introduced the System/370 Extended Architecture (S/370-XA) required by the new MVS/SP V2 and the...

The history of IBM mainframe operating systems is significant within the history of mainframe operating systems, because of IBM's long-standing position...

execute/emulate the System/370 instructions—1983. IBM 5155: IBM Portable—1984 IBM 4860: IBM PCjr—1984 IBM 5170: IBM Personal Computer/AT—1984 IBM 5140: IBM Convertible—1986...

architectures on which they run, including System/360, System/370, System/370-XA, ESA/370, ESA/390, and z/Architecture. The simplicity of machine instructions...

1987) were entry-level machines for the 370-XA architecture. They were positioned between the IBM 9370 and IBM 3090 in performance at the time of announcement...

). IBM. February 1972. GA27-2719-2. S370 IBM System/370 Principles of Operation (PDF) (Eleventh ed.). IBM. September 1987. A22-7000-10. S370-XA IBM System/370...

The IBM System/360 (S/360) is a family of mainframe computer systems that was announced by IBM on April 7, 1964, and delivered between 1965 and 1978. It...