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  2. MVS - Wikipedia

    en.wikipedia.org/wiki/MVS

    Multiple Virtual Storage, more commonly called MVS, is the most commonly used operating system on the System/370, System/390 and IBM Z IBM mainframe computers. IBM developed MVS, along with OS/VS1 and SVS , as a successor to OS/360 .

  3. Data Facility Storage Management Subsystem (MVS) - Wikipedia

    en.wikipedia.org/wiki/Data_Facility_Storage...

    DFSMS/MVS R1 included the optional Removeable Media Manager (DFSMSrmm), which supports both manual tape libraries and the 3495 [11] Tape Library Dataserver. On March 1, 1994, IBM announced [12] DFSMS/MVS Release 2. On March 1, 1994, IBM announced [13] DFSMS/MVS Release 3. On March 1, 1994, IBM announced [14] DFSMS/MVS Release 4.

  4. IBM mainframe - Wikipedia

    en.wikipedia.org/wiki/IBM_mainframe

    IBM 704 mainframe at NACA in 1957. From 1952 into the late 1960s, IBM manufactured and marketed several large computer models, known as the IBM 700/7000 series. The first-generation 700s were based on vacuum tubes, while the later, second-generation 7000s used transistors. These machines established IBM's dominance in electronic data processing ...

  5. OS/360 and successors - Wikipedia

    en.wikipedia.org/wiki/OS/360_and_successors

    OS/360, officially known as IBM System/360 Operating System, [1] [2] is a discontinued batch processing operating system developed by IBM for their then-new System/360 mainframe computer, announced in 1964; it was influenced by the earlier IBSYS/IBJOB and Input/Output Control System (IOCS) packages for the IBM 7090/7094 [citation needed] and even more so by the PR155 Operating System for the ...

  6. OS/390 - Wikipedia

    en.wikipedia.org/wiki/OS/390

    IBM Communications Server – Provides Virtual Telecommunications Access Method (VTAM) and TCP/IP communications protocols An additional benefit of the OS/390 packaging concept was to improve reliability, availability and serviceability (RAS) for the operating system, as the number of different combinations of elements that a customer could ...

  7. Time Sharing Option - Wikipedia

    en.wikipedia.org/wiki/Time_Sharing_Option

    When it was introduced in 1971, [3] IBM considered time-sharing an "optional feature", as compared to standard batch processing, and hence offered TSO as an option for OS/360 MVT. With the introduction of MVS in 1974, IBM made it a standard component of their top-end mainframe operating system.