Preliminary concepts and terminology; An introduction to MVS and TSO; How to use a 3270 Information Display System and access TSO; An introduction to ISPF; The basics of using ISPF; How to set up your ISPF defaults; How to browse a data set; Basic browse operations; Advanced browse operations; How to edit a data set; Basic edit operations; How to control the edit profile; Advanced edit operations; How to perform utility functions; Option 3.4: The DSLIST utility; Other utilities to manage libraries and data sets; The compare and search utilities; How to compile, link-edit, and debug a program in foreground mode; How to compile and link-edit a program; How to debug programs using OS COBOL Interactive Debug; How to debug programs using VS COBOL II Interactive Debug; How to process background jobs; How to use standard ISPF facilities to process background jobs; How to manage background jobs with SDSF; How to use libraries managed by LMF and SCLM; How to use LMF-managed libraries; How to use SCLM-managed libraries.