• In the context of IBM mainframe computers in the S/360 line, a data set (IBM preferred) or dataset is a computer file having a record organization. Use...
    14 KB (1,572 words) - 07:58, 29 July 2025
  • 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...
    16 KB (1,805 words) - 13:50, 1 May 2025
  • Thumbnail for Mainframe computer
    mid-1990s, when CMOS mainframe designs replaced the older bipolar technology. IBM claimed that its newer mainframes reduced data center energy costs for...
    36 KB (3,833 words) - 03:11, 3 August 2025
  • its IBM System/360 and still being emulated on IBM mainframes. It is a self-defining format with each data record represented by a Count Area that identifies...
    34 KB (3,928 words) - 16:27, 28 May 2025
  • Thumbnail for IBM System z9
    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...
    15 KB (1,811 words) - 05:46, 8 December 2022
  • indicates a line on the page where a footer can be printed. Print data sets on IBM mainframe operating systems may have either of two variants of printer control...
    11 KB (1,176 words) - 22:14, 11 March 2024
  • the 1980s, IBM and other vendors have created PC-based IBM mainframe-compatible systems which are compatible with the larger IBM mainframe computers....
    24 KB (3,074 words) - 19:48, 27 January 2025
  • Thumbnail for IBM Telum
    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...
    6 KB (449 words) - 11:21, 8 April 2025
  • (ESAME), is IBM's 64-bit complex instruction set computer (CISC) instruction set architecture, implemented by its mainframe computers. IBM introduced its...
    110 KB (3,790 words) - 03:20, 29 July 2025
  • Thumbnail for IBM 3270
    in 1971 and normally used to communicate with IBM mainframes. The 3270 was the successor to the IBM 2260 display terminal. Due to the text color on the...
    89 KB (9,000 words) - 17:30, 16 February 2025
  • announced as part of the IBM 9340 channel-attached, count key data (CKD) DASD subsystem family which attached to IBM mainframes including the ES/9000 processor...
    75 KB (9,527 words) - 09:33, 2 June 2025
  • Thumbnail for IBM System/360
    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...
    84 KB (8,970 words) - 02:37, 2 August 2025
  • all IBM mainframe operating systems included sort/merge utilities. With the announcement of virtual storage operating systems, DOS/VS and OS/VS, IBM unbundled...
    8 KB (1,043 words) - 13:20, 27 February 2024
  • DSN may refer to: Data set (IBM mainframe) Name, the name of a computer file having a record organization Data source name, a data structure used to describe...
    2 KB (246 words) - 20:34, 7 June 2025
  • is available on a large number of platforms (both IBM and non-IBM), including z/OS (mainframe), IBM i, Transaction Processing Facility, UNIX (AIX, HP-UX...
    20 KB (2,491 words) - 21:03, 24 November 2024
  • The history of IBM mainframe operating systems is significant within the history of mainframe operating systems, because of IBM's long-standing position...
    51 KB (5,935 words) - 20:24, 25 May 2025
  • Thumbnail for IBM 3270 PC
    and as a terminal to a mainframe. IBM later released the 3270 AT (IBM System Unit 5273), which is a similar design based on the IBM PC AT. They also released...
    13 KB (1,647 words) - 01:51, 18 July 2025
  • Thumbnail for IBM System/390
    The IBM System/390 is a discontinued mainframe product family implementing ESA/390, the fifth generation of the System/360 instruction set architecture...
    46 KB (3,685 words) - 12:28, 20 July 2025
  • in the 1960s with the introduction of the System/360 family of mainframe computers. IBM provided a comprehensive spectrum of hardware, software, and service...
    218 KB (24,583 words) - 22:18, 14 July 2025
  • 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...
    3 KB (194 words) - 07:39, 18 July 2025
  • Thumbnail for IBM 704
    The IBM 704 is the model name of a large digital mainframe computer introduced by IBM in 1954. Designed by John Backus and Gene Amdahl, it was the first...
    20 KB (1,888 words) - 22:38, 21 July 2025
  • Thumbnail for IBM AIX
    platforms, including the IBM RS/6000 series and later Power and PowerPC-based systems, IBM System i, System/370 mainframes, PS/2 personal computers,...
    57 KB (5,321 words) - 21:27, 22 July 2025
  • Thumbnail for IBM 700/7000 series
    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...
    32 KB (2,656 words) - 23:22, 17 May 2025
  • 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...
    23 KB (2,236 words) - 07:31, 18 July 2025
  • 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...
    39 KB (4,381 words) - 16:02, 23 July 2025
  • Job Control Language (redirect from IBM JCL)
    for job control; not just the IBM mainframe technology with the same name. JCL-specific terminology includes: Data set A file; either temporary or permanent;...
    52 KB (6,345 words) - 12:53, 2 August 2025
  • ISPF (category IBM mainframe operating systems)
    them execute modules of IBM mainframe utility programs to do the actual work. ISPF is frequently used to manipulate z/OS data sets via its Program Development...
    13 KB (1,566 words) - 14:06, 12 May 2025
  • Thumbnail for Z/OS
    Z/OS (redirect from IBM z/OS)
    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...
    21 KB (2,262 words) - 15:17, 10 July 2025
  • The z13 is a microprocessor made by IBM for their z13 mainframe computers, announced on January 14, 2015. Manufactured at GlobalFoundries' East Fishkill...
    7 KB (722 words) - 00:52, 1 August 2025
  • Thumbnail for IBM System z10
    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...
    15 KB (1,483 words) - 20:16, 25 August 2024