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Back to : GC28-6764-1_TSO_Guide_to_ | Home File No. 8360-36 Order No. GC28-6764-1 osTime Sharing OptionGuide to Writing aTerminal Monitor ProgramDr a Command ProcessorOS Release 21This publication describes features of TSO thatcan be replaced, modified, or added to by eachinstallation of TSO, to adapt the command systemto the installation's particular needs. Themanual is intended for programmers whoseresponsibility is to modify the portions of TSOthat communicate directly with the user at theterminal. The publication discusses the TerminalMonitor Program and the Command Processors fromthe viewpoint of their replaceability, anddescribes the programming features providedwithin TSO for user-written Terminal MonitorPrograms, Command Processors, and applicationsprograms. These features include: Service Routines Macro Instructions SVCs The Dynamic Allocation Interface Routine (DAIR) The TEST Command Processorsecond Edition (March, 1972)This is a major revision of, and obsoletes, GC28-6764-0 andTechnical Newsletter GN28-2484. Changes are listed in thesummary of Amendments. Changes or additions to the text andillustrations are indicated by a vertical line to the left ofthe change. This edition applies to release 21 of the IBM System/360Operating System, and to all subsequent releases untilotherwise indicated in new editions or Technical Newsletters.Changes are continually made to the information herein.Before using this publication in connection with theoperation of IBM systems, consult the latest IBM System/360and System/370 SRL Newsletter, Order No. GN20-0360, for theeditions that are applicable and current. Requests for copies of IBM publications should be made toyour IBM repesentative or to the IBM branch office servingyour locality. A form for readers' comments is provided at the back ofthis publication. If the form has been removed, comments maybe addressed to IBM Corporation, Programming SystemsPublications, Department D58, PO Box 390" Poughkeepsie,N.Y. 12602. Comments become the property of IBM.