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Time Sharing Option (TSO) is an interactive time-sharing environment for IBM mainframe operating systems, including OS/360 MVT, OS/VS2 (SVS), MVS, OS/390, and z/OS. == Use == Time-sharing means that many persons can access the operating system concurrently, while unaware that others are also accessing the operating system. It appears to each TSO user that they are the only user on the system. TSO is most commonly used by mainframe system administrators and programmers. It provides: * A text editor * Batch job support, including completion notification * Debuggers for some programming languages used on System/360 and later IBM mainframes * Support for other vendors' end-user applications, for example for querying IMS and DB2 databases TSO interacts with users in either a line-by-line mode or in a full screen, menu-driven mode. In the line-by-line mode, the user enters commands by typing them in at the keyboard; in turn, the system interprets the commands, and then displays responses on the terminal screen. But most mainframe interaction is actually via ISPF, which allows for customized menu-driven interaction. This combination is called ''TSO/ISPF''. TSO can also provide a Unix-style environment on OS/390 and z/OS via the UNIX System Services command shell, with or without ISPF. TSO commands can be embedded in REXX execs or CLISTs, which can run interactively or in batch. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Time Sharing Option」の詳細全文を読む スポンサード リンク
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