TSO (time-sharing option) is an interactive command line interpreter for IBM large computer operating systems z/OS. Time sharing permitted that the computer use several users at the same time. They receive the CCU for a certain time assigned, while the other users with their transactions are located in waiting position.

TSO for OS/360 appeared 1971 and on typewriter terminals was originally used. With the break-through of the screen terminals of the type IBM 3270 it became possible to develop Fullscreenanwendungen which displaced the command line nearly completely (ISPF, RPF).

The TSO instructions can be used in a simple Script language CLIST, which is replaced however ever more by the substantially more flexible REXX.

TSO is the main tool for system administrators and program developers on large computers, which run under z/OS.

Related links

• German-language introduction (easily become outdated)
• The manuals IBM

Articles in category "Time-sharing option"

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• Time Sharing Option - Wikipedia, the free encyclopedia
  Time Sharing Option (TSO) is an interactive command line interpreter for IBM ... time-sharing was considered an "optional feature", and hence TSO was ...


• Time Sharing Option @ Computer-Dictionary-Online.org
  Time Sharing Option @ Computer Dictionary Online. Computer terminology definitions including hardware, software, equipment, devices, jargon abbreviations ...


• Time Sharing Option Definition
  Time Sharing Option Definition. ... Definition of: Time Sharing Option See TSO . RELATED TERMS:. TSO. Search: Browse the index. Copyright


• Time Sharing Option: Information From Answers.com
  TSO ( T ime S haring O ption) Software that provides interactive communications for IBM's MVS operating system.


• TSO - Time Sharing Option
  Time Sharing Option. A subsystem of an IBM MVS operating system. TSO allows multiple users to concurrently use the mainframe facilities and services. ...