IBM System/390

IBM System/390 is a line of mainframe computers developed by IBM, designed to provide high-performance, high-availability, and high-security computing for large-scale enterprise applications, such as those used by Bank of America, Microsoft, and NASA. The System/390 was announced in 1990 and was designed to replace the IBM System/370 and IBM System/3080 lines, with support from Intel, Oracle Corporation, and Cisco Systems. The System/390 was widely used in industries such as finance, healthcare, and government, including organizations like United States Department of Defense, Federal Bureau of Investigation, and National Security Agency. The system's development involved collaboration with University of California, Berkeley, Massachusetts Institute of Technology, and Stanford University.

Introduction

The IBM System/390 was designed to provide a high-level of compatibility with previous IBM mainframe systems, allowing customers to easily migrate their existing applications and data to the new platform, with support from IBM Research, IBM Watson, and IBM Cloud. The system was also designed to be highly scalable, with support for up to 32 CPUs and 128 GB of memory, making it suitable for large-scale applications used by Google, Amazon, and Facebook. The System/390 was also designed to be highly reliable, with features such as duplexing and triplexing of critical components, and support from Dell, Hewlett Packard Enterprise, and Lenovo. The system's reliability was also enhanced through the use of error-correcting code and redundancy in its design, developed in collaboration with California Institute of Technology, Carnegie Mellon University, and University of Texas at Austin.

Architecture

The IBM System/390 architecture was based on the ESA/390 instruction set architecture, which provided a high-level of compatibility with previous IBM mainframe systems, including IBM System/360 and IBM System/370, developed by IBM Fellows like John Cocke and Fran Allen. The system also supported a range of I/O devices, including disk storage, tape storage, and networking devices, such as those developed by Seagate Technology, Western Digital, and Brocade Communications Systems. The System/390 architecture was also designed to be highly flexible, with support for a range of operating systems, including MVS, VM, and VSE, developed in collaboration with Red Hat, SUSE, and Canonical Ltd.. The system's architecture was also influenced by the work of Computer Science Laboratory at Xerox PARC, Bell Labs, and MIT Computer Science and Artificial Intelligence Laboratory.

Hardware

The IBM System/390 hardware consisted of a range of components, including CPUs, memory, and I/O devices, developed in collaboration with Texas Instruments, Advanced Micro Devices, and Micron Technology. The system's CPUs were designed to provide high-performance and high-reliability, with features such as pipelining and cache memory, similar to those used in Intel Core and AMD Ryzen processors. The system's memory was also designed to be highly reliable, with features such as error-correcting code and redundancy, developed in collaboration with University of Illinois at Urbana-Champaign, University of Michigan, and Georgia Institute of Technology. The system's I/O devices were designed to provide high-speed data transfer, with support for devices such as Fibre Channel and ESCON, developed by Emulex, QLogic, and McData.

Operating Systems

The IBM System/390 supported a range of operating systems, including MVS, VM, and VSE, developed in collaboration with IBM Research, IBM Watson, and IBM Cloud. The system's operating systems were designed to provide a high-level of security, reliability, and performance, with features such as access control and backup and recovery, similar to those used in Linux, Windows Server, and z/OS. The system's operating systems were also designed to be highly scalable, with support for large-scale applications used by Amazon Web Services, Microsoft Azure, and Google Cloud Platform. The system's operating systems were influenced by the work of Unix, BSD, and GNU Project, developed by Richard Stallman, Linus Torvalds, and Eric S. Raymond.

History

The IBM System/390 was announced in 1990 and was designed to replace the IBM System/370 and IBM System/3080 lines, with support from Intel, Oracle Corporation, and Cisco Systems. The system was widely used in industries such as finance, healthcare, and government, including organizations like United States Department of Defense, Federal Bureau of Investigation, and National Security Agency. The system's development involved collaboration with University of California, Berkeley, Massachusetts Institute of Technology, and Stanford University. The System/390 was also influenced by the work of IBM Fellows like John Cocke and Fran Allen, and the system's architecture was influenced by the work of Computer Science Laboratory at Xerox PARC, Bell Labs, and MIT Computer Science and Artificial Intelligence Laboratory.

Applications and Usage

The IBM System/390 was widely used in a range of applications, including banking, insurance, and retail, used by companies like JPMorgan Chase, Bank of America, and Walmart. The system was also used in government agencies, such as the United States Department of Defense, Federal Bureau of Investigation, and National Security Agency. The system's high-performance and high-reliability made it suitable for large-scale applications, such as data warehousing and business intelligence, developed in collaboration with SAP SE, Oracle Corporation, and Microsoft. The system's security features also made it suitable for applications that required high-levels of security, such as online banking and e-commerce, used by companies like PayPal, eBay, and Amazon. The system's usage was also influenced by the work of Gartner, Forrester Research, and IDC, developed by Gideon Gartner, George Colony, and Frank Gens. Category:IBM mainframe computers