Data Set Resources: To execute a program, you must request the data sets needed to supply data to the program and to receive output records from the program.

Sysout Data Set Resources: A sysout data set is a system-handled output data set. This data set is placed temporarily on direct access storage. Later, at the convenience of the system, the system prints it, punches it, or sends it to a specified location. Because sysout data sets are processed by the system, the programmer can specify many parameters to control that processing.