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  2. Mainframe computer - Wikipedia

    en.wikipedia.org/wiki/Mainframe_computer

    Batch processing, such as billing, became even more important (and larger) with the growth of e-business, and mainframes are particularly adept at large-scale batch computing. Another factor currently increasing mainframe use is the development of the Linux operating system, which arrived on IBM mainframe systems in 1999.

  3. IBM mainframe - Wikipedia

    en.wikipedia.org/wiki/IBM_mainframe

    The primary operating systems in use on current IBM mainframes include z/OS (which followed MVS/ESA and OS/390 in the OS/360 lineage), z/VM (which followed VM/ESA and VM/XA SP in the CP-40 lineage), z/VSE (which is in the DOS/360 lineage), z/TPF (a successor of Transaction Processing Facility in the Airlines Control Program lineage), and Linux ...

  4. Million service units - Wikipedia

    en.wikipedia.org/wiki/Million_service_units

    The term is most commonly associated with IBM mainframes. It reflects how IBM rates the machine in terms of charging capacity. It reflects how IBM rates the machine in terms of charging capacity. The technical measure of processing power on IBM mainframes , however, are Service Units per second (or SU/sec).

  5. IBM Basic assembly language and successors - Wikipedia

    en.wikipedia.org/wiki/IBM_Basic_assembly...

    As it is an assembly language, BAL uses the native instruction set of the IBM mainframe architecture on which it runs, System/360.. The successors to BAL use the native instruction sets of the IBM mainframe architectures on which they run, including System/360, System/370, System/370-XA, ESA/370, ESA/390, and z/Architecture.

  6. History of IBM mainframe operating systems - Wikipedia

    en.wikipedia.org/wiki/History_of_IBM_mainframe...

    IBM mainframes run operating systems supplied by IBM and by third parties. The operating systems on early IBM mainframes have seldom been very innovative, except for TSS/360 and the virtual machine systems beginning with CP-67. But the company's well-known reputation for preferring proven technology has generally given potential users the ...

  7. IBM Z - Wikipedia

    en.wikipedia.org/wiki/IBM_Z

    In 2004, IBM extended the idea of lower-cost restricted processors (first introduced in 2000 in the form of IFL, for use by Linux on IBM Z only) that are not permitted to run the traditional mainframe OSes (z/OS, z/VM, z/VSE, and z/TPF), by the addition of z Application Assist Processor dedicated to Java and XML processing. The IFL and zAAP are ...

  8. z/OS - Wikipedia

    en.wikipedia.org/wiki/Z/OS

    An IBM System Z10 mainframe computer on which z/OS can run. z/OS is a 64-bit operating system for IBM z/Architecture mainframes, introduced by IBM in October 2000. [2] It derives from and is the successor to OS/390, which in turn was preceded by a string of MVS versions.

  9. IBM System/360 - Wikipedia

    en.wikipedia.org/wiki/IBM_System/360

    The IBM System/360 (S/360) is a family of mainframe computer systems announced by IBM on April 7, 1964, [1] and delivered between 1965 and 1978. [2] System/360 was the first family of computers designed to cover both commercial and scientific applications and a complete range of applications from small to large.