What Does Mainframe TSO Stand For?
What Does Mainframe TSO Stand For? What does mainframe TSO stand for? 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. What is TSO in mainframe? Time Sharing Option/Extensions (TSO/E) allows users to create an interactive session with the z/OS® system.