$145
The Complete Mainframe Professional Course : JCL -
Volume 2: JCL Statements, Utilities, Procedures, SDSF, JES, JOB Pro...
Job Entry Subsystem (JES)
A subsystem of the OS/390 and MVS mainframe operating systems that manages jobs (units of work) that the system does. Each job is described to the operating system by system administrators or other users in job control language (JCL).
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