Service Manuals, User Guides, Schematic Diagrams or docs for : IBM 360 os R21.0_Mar72 GC28-6534-4_IBM_System_360_Operating_System_Rel_21_Introduction_Nov72

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                                                     File No. 8360-20
                                                     Order No. GC28-6534-4   OS



o
    Systems Reference Library




    IBM System/360 Operating System
    Introduction

    This publication describes operating systems in
    general and introduces the IBM System/360
    Operating System. The publication is intended for
    anyone interested in the system/360 Operating


o
    System, whether or not he is familiar with other
    operating systems.   It describes the purpose,
    design objectives, organization, function, and
    application of the System/360 Operating System,
    and how it was influenced by previous systems; i t
    also describes System/360 compatibility with
    System/370.

       The operating system consists of programming
    aids and a control program that schedules and
    supervises the processing of data. The system is
    designed for a broad range of applications,
    including teleprocessing and multiprocessing. It
    helps a System/360 data processing installation
    increase productivity by using its resources more
    effectively.
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Fifth Edition (November, 1972)

This is a reprint of GC28-6534-3 incorporating changes
released in the following Technical Newsletter:
           GN28-2512 (dated January 15, 1972)

   This edition applies to release 21 of IBM System/360
Operating System, and to all subsequent releases until
otherwise indicated in new editions or Technical Newsletters.
Changes are continually made to the information herein~
before using this publication in.connection with the
operation of IBM systems, consult the latest IBM System/360
and system/370Bibliograph
                          a,   Order No. GA22-6822, and the
current SRL NeWs'I'etter, Or er No. GN20-0360, for the
editions that are applicable and current.

   Requests for copies of IBM publications should be made to
your IBM representative or to the IBM branch office serving
your locality.

   A form for readers' comments is provided at the back of
this publication. If the form has been removed, comments may
                                                                                   (C-'~
be addressed to IBM Corporation, Publications Development,                         I'
Department D58, Building 706-2, PO Box 390, Poughkeepsie, N.Y.
12602. Comments become the property of IBM.

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