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  1. The first operating system used for real work was GM-NAA I/O, produced in 1956 by General Motors' Research division for its IBM 7041. Here are some of the major generations of operating systems23:
    • First-generation of Operating System: UNIX Operating System
    • Limitations of First-generation Operating System
    • The second generation of Operating System: OS/360
    • Third generation of Operating System: MS-DOS
    • The fourth generation of Operating System: Windows
    了解详细信息:

    The broader categories of systems and application software are discussed in the computer software article. The first operating system used for real work was GM-NAA I/O, produced in 1956 by General Motors ' Research...

    en.wikipedia.org/wiki/History_of_operating_systems

    History of the Operating System

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      History of Operating System (OS)

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        History of operating systems - Wikipedia

        Computer operating systems (OSes) provide a set of functions needed and used by most application programs on a computer, and the links needed to control and synchronize computer hardware. On the first computers, with no operating system, every program needed the full hardware specification to run correctly … 展开

        The earliest computers were mainframes that lacked any form of operating system. Each user had sole use of the machine for a scheduled period of time and would arrive at the computer with … 展开

        Digital Equipment Corporation created several operating systems for its 16-bit PDP-11 machines, including the simple RT-11 system, the time-sharing RSTS operating systems, and the 展开

        Operating systems originally ran directly on the hardware itself and provided services to applications, but with virtualization, the operating system itself runs under the control of a 展开

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        The first operating system used for real work was GM-NAA I/O, produced in 1956 by General Motors' Research division for its IBM 704. Most other early operating systems for IBM … 展开

        Beginning in the mid-1970s, a new class of small computers came onto the marketplace. Featuring 8-bit processors, typically the MOS Technology 6502, Intel 8080, Motorola 6800 or the Zilog Z80, along with rudimentary input and output interfaces and as much 展开

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