IBM mainframes are large computer systems produced by IBM since 1952. During the 1960s and 1970s, IBM dominated the computer market with the 7000 series...

IBM Z is a family name used by IBM for all of its z/Architecture mainframe computers. In July 2017, with another generation of products, the official family...

Linux on IBM Z, Linux on zSystems, or zLinux is the collective term for the Linux operating system compiled to run on IBM mainframes, especially IBM Z, zSystems...

during the mid-1990s, when CMOS mainframe designs replaced the older bipolar technology. IBM claimed that its newer mainframes reduced data center energy costs...

The IBM System/390 is a discontinued mainframe product family implementing ESA/390, the fifth generation of the System/360 instruction set architecture...

the 1980s, IBM and other vendors have created PC-based IBM mainframe-compatible systems which are compatible with the larger IBM mainframe computers....

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

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...

(ESAME), is IBM's 64-bit complex instruction set computer (CISC) instruction set architecture, implemented by its mainframe computers. IBM introduced its...

capacity is stated as 112 MB. The 2302 attaches to IBM mainframes via a IBM 2841 Storage Control Unit. The IBM 2305 fixed head storage (a fixed-head disk drive...

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

Watson's lieutenants, John R. Opel, who managed the launch of IBM's System/360 mainframe family in 1964. The slowest System/360 model announced in 1964...

The IBM Basic assembly language and successors is a series of assembly languages and assemblers made for the IBM System/360 mainframe system and its successors...

by IBM for the IBM z16 series mainframe computers. The processor was announced at the Hot Chips 2021 conference on 23 August 2021. Telum is IBM's first...

The IBM System/370 (S/370) is a range of computers, from entry-level to mainframes, announced as the successors to the System/360 family on June 30, 1970...

In the context of IBM mainframe computers in the IBM System/360 line and its successors, a data set (IBM preferred) or dataset is a computer file having...

The z15 is a microprocessor made by IBM for their z15 mainframe computers, announced on September 12, 2019. The processor unit chip (PU chip) has 12 cores...

IBM System z10 is a line of IBM mainframes. The z10 Enterprise Class (EC) was announced on February 26, 2008. On October 21, 2008, IBM announced the z10...

and IBM Z IBM mainframe computers. IBM developed MVS, along with OS/VS1 and SVS, as a successor to OS/360. It is unrelated to IBM's other mainframe operating...

VSEn (Virtual Storage Extended) is an operating system for IBM mainframe computers, the latest one in the DOS/360 lineage, which originated in 1965. It...

The IBM 700/7000 series is a series of large-scale (mainframe) computer systems that were made by IBM through the 1950s and early 1960s. The series includes...

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...

of IBM non-programmable communications controllers used with System/360 and System/370 computers. The family consisted of the following devices: IBM 2701...

stores, subsidiaries, etc., and to be connected to the central host mainframe, using IBM Systems Network Architecture (SNA). Although its successor's role...

Sharing Option (TSO) is an interactive time-sharing environment for IBM mainframe operating systems, including OS/360 MVT, OS/VS2 (SVS), MVS, OS/390,...

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...

z/OS is a 64-bit operating system for IBM z/Architecture mainframes, introduced by IBM in October 2000. It derives from and is the successor to OS/390...

IBM Power Systems. Multiple operating systems are compatible with LPARs, including z/OS, z/VM, z/VSE, and z/TPF on mainframes, AIX and IBM i on IBM Power...

withdrawn in 2005. List of IBM products IBM mainframe History of IBM Emerson W. Pugh; Lyle R. Johnson; John H. Palmer (1991). IBM's 360 and early 370 systems...

floating-point was added to IBM System z9 GA2 in 2007 using millicode and in 2008 to the IBM System z10 in hardware. Modern IBM mainframes support three floating-point...