TSO is primarily a programmer’s tool that offers an editor, language translators, utility programs for file manipulation, and test facilities. TSO also can execute batch programs in “foreground mode.” The SUBMIT command lets interactive users submit jobs to z/OS for normal batch‑stream processing. For these reasons, terminal users view TSO as the interactive, concurrent use of system resources.
TSO is now a standard feature rather than an option. Communication between TSO and the terminal is generally handled by the virtual telecommunications access method (VTAM).
Use option 2.5 to monitor the time-sharing option.
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