IBM GC28-6534-4 OS Introduction Rel 21 Nov72 free download

File name GC28-6534-4_OS_Introduction_Rel_21_Nov72.pdf

File No. S360-20 Order No. GC28-6534-4 OS Systems Reference Library IBM System/360 Operating System IntrDductiDn 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 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_ Fifth Edition (November, 1972) This is a reprint of GC2B-6534-3 incorporating changes released in the following Technical Newsletter: GN2B-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. GA22-6B22, and the current SRL NeWsTe'tter, 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 be addressed to IBM Corporation, Publications Development, Department D5B, Building 706-2, PO Box 390, Poughkeepsie, N.Y. 12602. Comments become the property of IBM. @ Copyright International Business Machines Corporation 1964,1966,1969,1971 Preface This publication introduces you to the IBM