Time Sharing Option/Extensions (TSO/E) allows users to create an interactive session with the z/OS® system. TSO provides a single-user logon capability and a basic command prompt interface to z/OS. Most users work with TSO through its menu-driven interface, Interactive System Productivity Facility (ISPF).

This chapter describes the functions and syntax of TSO/E commands and their subcommands. It includes: The general format and syntax rules for the commands; A description of each command. The commands are described in alphabetical order. Examples of how to use commands and subcommands. The commands are presented in alphabetical order.

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. In computing, time-sharing is a design technique that allows many people to use a computer system concurrently and independently—without interfering with each other. [1] .

TSO/ISPF serves as both a system management interface and a development interface for traditional z/OS programming. What is TSO? Time Sharing Option/Extensions (TSO/E) allows users to create an interactive session with the z/OS system.

What is TSO? Time Sharing Option/Extensions (TSO/E) allows users to create an interactive session with the z/OS system. TSO provides a single-user logon capability and a basic command prompt interface to z/OS. What is ISPF? ISPF is a full panel application navigated by keyboard.

TSO-ISPF Tutorial. A Complete Reference for Mainframe Programmer. Get Started Audience: This TSO-ISPF tutorial is specifically aimed at entry level mainframe programmer and who are having their first experience in Mainframe computer.

Interactive System Productivity Facility (ISPF) is a menu-driven interface to most of TSO functions. Using ISPF, TSO functions can be invoked using menu options and answering system prompt. For example: TSO is similar to DOS approach, ISPF similar to windows menu approach.

to use TSO/E to compile, assemble, bind or link-edit and execute a program. It also explains how to use the TSO/E TEST and TESTAUTH commands to test a program. How to use this document If you have never used this document, read Chapter 1, “Programming Using TSO/E,” on page 3 to become familiar with the types of programs that you can

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. The tutorial is for anyone who can be a student, a fresher, or a software engineer, a mainframe developer, an expert trying to learn how to login to the mainframe system.

TSO is the short form of Time Sharing Option in which multiple users can access the MVS (M ultiple V irtual S torage) concurrently and to each user, it will appear that he or she is the only user in the system. Each user in the system has an Address Space and a unique user id which is 8 character maximum.