IBM System/390
Discontinued fifth generation of the System/360 instruction set architecture.
- IBM System/39096 related topics
IBM System/370
Model range of IBM mainframe computers announced on June 30, 1970 as the successors to the System/360 family.
Model range of IBM mainframe computers announced on June 30, 1970 as the successors to the System/360 family.
In September 1990, the System/370 line was replaced with the System/390.
32-bit computing
32-bit microcomputers are microcomputers that use 32-bit microprocessors.
32-bit microcomputers are microcomputers that use 32-bit microprocessors.
Prominent 32-bit instruction set architectures used in general-purpose computing include the IBM System/360 and IBM System/370 (which had 24-bit addressing) and the System/370-XA, ESA/370, and ESA/390 (which had 31-bit addressing), the DEC VAX, the NS320xx, the Motorola 68000 family (the first two models of which had 24-bit addressing), the Intel IA-32 32-bit version of the x86 architecture, and the 32-bit versions of the ARM, SPARC, MIPS, PowerPC and PA-RISC architectures.
IBM System/360
Family of mainframe computer systems that was announced by IBM on April 7, 1964, and delivered between 1965 and 1978.
Family of mainframe computer systems that was announced by IBM on April 7, 1964, and delivered between 1965 and 1978.
(The idea of a major breakthrough with FS technology was dropped in the mid-1970s for cost-effectiveness and continuity reasons.) Later compatible IBM systems include the 4300 family, the 308x family, the 3090, the ES/9000 and 9672 families (System/390 family), and the IBM Z series.
IBM mainframe
IBM mainframes are large computer systems produced by IBM since 1952.
IBM mainframes are large computer systems produced by IBM since 1952.
The System/360 later evolved into the System/370, the System/390, and the 64-bit zSeries, System z, and zEnterprise machines.
MVS
Multiple Virtual Storage, more commonly called MVS, was the most commonly used operating system on the System/370 and System/390 IBM mainframe computers.
Z/Architecture
z/Architecture, initially and briefly called ESA Modal Extensions (ESAME), is IBM's 64-bit complex instruction set computer (CISC) instruction set architecture, implemented by its mainframe computers.
VM (operating system)
VM (often: VM/CMS) is a family of IBM virtual machine operating systems used on IBM mainframes System/370, System/390, zSeries, System z and compatible systems, including the Hercules emulator for personal computers.
IBM 3090
Family of mainframe computers that was a high-end successor to the IBM System/370 series, and thus indirectly the successor to the IBM System/360 launched 25 years earlier.
Family of mainframe computers that was a high-end successor to the IBM System/370 series, and thus indirectly the successor to the IBM System/360 launched 25 years earlier.
The eight largest of the 18 models of the ES/9000 systems introduced in 1990 were water-cooled; the other ten were air-cooled.
64-bit computing
In computer architecture, 64-bit integers, memory addresses, or other data units are those that are 64 bits wide.
In computer architecture, 64-bit integers, memory addresses, or other data units are those that are 64 bits wide.
2000: IBM ships its first 64-bit z/Architecture mainframe, the zSeries z900. z/Architecture is a 64-bit version of the 32-bit ESA/390 architecture, a descendant of the 32-bit System/360 architecture.
Hypervisor
Computer software, firmware or hardware that allows partitioning the resource of a CPU among multiple operating systems or independent programs.
Computer software, firmware or hardware that allows partitioning the resource of a CPU among multiple operating systems or independent programs.
IBM provides virtualization partition technology known as logical partitioning (LPAR) on System/390, zSeries, pSeries and IBM AS/400 systems.