IBM C28-2003-3 TSS360Concepts free download

File name C28-2003-3_TSS360Concepts.pdf

File No. S360-20 Form C28-2003-3 ------- Systems Reference Library IBM System/360 Time Sharing System Concepts and Facilities Time Sharing System/360 is a comprehensive programming system used in conjunction with IBM System/360 computers that have time-sharing features, TSS/360 comprises a supervisory pro- gram, a group of service programs, and a group ,of user programs. The supervisory program controls operation of the system and provides the time-sharing environment. The service programs perform task- and --lata-management functions in response to user or system reqpests. The user programs perform language processing:' linkage editing, and other work defined by the user's problem programs. The primary purpose of TSS/360 is to provide many users with simultaneous conversational (on-line) access to a computing sys- tem that ma~.' have a single processor, or multiple processors. The combination of' machine and program features gives each user the impression that he has sole possession of the system. He uses the system as if it had a directly accessible main-storage address- ing space equal to the addressing capability of the system, rather than its actual main-storage capacity. While the system is olJerating conversationally, for many si- multaneous users, it can also operate nonconversationally, with batch-tY!Jp processing jobs, in the background. Preface This publication is an introduction to Time Sharing each TSS/360 publication, and outlines the intended System/360, and is directed to managers, administra- reading series for each type of user. tors, operators, system monitors, and all users, in-