IBM mainframes are large computer systems produced by IBM since 1952. During the 1960s and 1970s, IBM dominated the large computer market. Current mainframe computer in IBM's line of business computers are developments of the basic design of the IBM System/360.
z/OS is a 64-bit operating system for IBM mainframes, produced by IBM. It derives from and is the successor to OS/390, which in turn followed a string of MVS versions. Like OS/390, z/OS combines a number of formerly separate, related products, some of which are still optional. z/OS offers the attributes of modern operating systems but also retains much of the functionality originating in the 1960s and each subsequent decade that is still found in daily use. z/OS was first introduced in October 2000.
An AbEnd is an abnormal termination of software, or a program crash.
A computing platform or digital platform is the environment in which a piece of software is executed. It may be the hardware or the operating system (OS), even a web browser and associated application programming interfaces, or other underlying software, as long as the program code is executed with it. Computing platforms have different abstraction levels, including a computer architecture, an OS, or runtime libraries. A computing platform is the stage on which computer programs can run.
WebSphere Application Server (WAS) is a software product that performs the role of a web application server. More specifically, it is a software framework and middleware that hosts Java-based web applications. It is the flagship product within IBM's WebSphere software suite. It was initially created by Donald F. Ferguson, who later became CTO of Software for Dell. The first version was launched in 1998.
In computing, a Parallel Sysplex is a cluster of IBM mainframes acting together as a single system image with z/OS. Used for disaster recovery, Parallel Sysplex combines data sharing and parallel computing to allow a cluster of up to 32 systems to share a workload for high performance and high availability.
IBM System z9 is a line of IBM mainframe computers. The first models were available on September 16, 2005. The System z9 also marks the end of the previously used eServer zSeries naming convention. It was also the last mainframe computer that NASA ever used.
As of late 2006, IBM's Multiprise 3000, product number 7060, is physically the smallest mainframe, introduced in 1999 and still in common use. Models H50 and H70 were withdrawn from marketing in 2002. It uses a similar case as the S/390 Integrated Server, which was introduced about one year earlier. The Multiprise 3000 is unusual because it contains internal disk storage. Withdrawal of service for all models occurred at the end of 2012.
IBM Z is a family name used by IBM for all of its non-POWER mainframe computers from the Z900 on. In July 2017, with another generation of products, the official family was changed to IBM Z from IBM z Systems; the IBM Z family now includes the newest model the IBM z14, as well as the z13, the IBM zEnterprise models, the IBM System z10 models, the IBM System z9 models and IBM eServer zSeries models.
Emergency Management Services (EMS) provides an RS-232 accessible serial console interface to the bootloader menu on modern versions of Microsoft Windows.
IBM System Management Facility (SMF) is a component of IBM's z/OS for mainframe computers, providing a standardised method for writing out records of activity to a file. SMF provides full "instrumentation" of all baseline activities running on that IBM mainframe operating system, including I/O, network activity, software usage, error conditions, processor utilization, etc.
The IBM 3745 is the latest and last of a 37xx family of communications controllers for the IBM mainframe environment. As of mid-2009 there were an estimated 7,000+ of the larger 3745 models still in active production status, down from 20,000 or more in 2007. The 3745 and associated 3746 models were once heavily used within financial, insurance and retail industries as well as within government agencies globally. However, today most organizations have migrated away from the use of 3745s. IBM's Enterprise Extender and the Communication Controller for Linux on System z (CCL) have largely displaced the older 3745s. IBM announced in September 2002 that it would no longer manufacture new 3745s, but IBM continues to support the hardware by providing worldwide maintenance service, by providing microcode releases and by supporting the associated software including NCP and the virtual telecommunications access method (VTAM). IBM has announced end-of-service dates for Japan, Europe and the Middle East, but has not yet announced end-of-service for the Americas and parts of Asia.
On IBM mainframes running the z/OS operating system, Intelligent Resource Director (IRD) is software that automates the management of CPU resources and certain I/O resources.
Power Systems is a family of server computers from IBM that are based on its POWER processors. Before the Power Systems line was announced on April 2, 2008, IBM had two distinct POWER processor-based lines: the System i running IBM i – and the System p series running AIX or Linux.
In mainframe computing PR/SM is a type-1 Hypervisor that allows multiple logical partitions to share physical resources such as CPUs, I/O channels and LAN interfaces; when sharing channels, the LPARs can share I/O devices such asdirect access storage devices (DASD). PR/SM is integrated with all IBM System z machines. Similar facilities exist on the i and p versions of IBM Power Systems.
Network Installation Manager (NIM) is a object-oriented system management framework on the IBM AIX operating system that installs and manages systems over a network. NIM is analogous to Kickstart in the Linux world. NIM is a client-server system in which a NIM server provides a boot image to client systems via the BOOTP and TFTP protocols. In addition to boot images, NIM can manage software updates and third-party applications. The SUMA command can be integrated with NIM to automate system updates from a central server and subsequent distribution to clients.
BASE24 is a series of applications produced by ACI Worldwide, Inc. that support payment systems used by large financial institutions.
HiperSockets is an IBM technology for high-speed communications between partitions on a server with a hypervisor. The term is most commonly associated with zSeries, System z9 and System z10 mainframes which can provide in-memory TCP/IP connections between and among LPARs running several different operating systems, including z/OS, z/VM, and Linux on z Systems.
Linux on IBM Z is the collective term for the Linux operating system compiled to run on IBM mainframes, especially IBM Z and IBM LinuxONE servers. Similar terms which imply the same meaning are Linux on zEnterprise, Linux on zSeries, Linux/390, Linux/390x, etc. The terms zLinux or z/Linux are also sometimes used, but these terms are discouraged by IBM as they create the implication of an IBM-offered or IBM-distributed version of Linux, which is incorrect.
IBM Enterprise Identity Mapping (EIM) is a framework from IBM that allows the mapping of different identities on various platforms, user repositories and applications to a single identity.
