
208 Introduction to the New Mainframe: z/VSE Basics
emulators running on personal computers, rather than actual 3270 terminals.
Emulators can provide developers with auxiliary functions, such as multiple
sessions, and uploading and downloading code and data from the PC.
Program development on z/VSE typically involves the use of a line editor to
manipulate source code files, the use of batch jobs for compilation, and a variety
of mechanisms for testing the code. Interactive debuggers, based on 3270
terminal functions, are available for common languages. This chapter introduces
the tools and utilities for developing a simple program to run on ...