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JES

JES

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**JES**

What is JES?

JES (Job Entry Subsystem) is a component of z/OS operating systems that manages the execution of jobs. It receives jobs into the system, schedules them for processing, and controls their output. JES2 and JES3 are the two primary implementations of JES. JES handles tasks such as spooling, job scheduling, and output management, ensuring efficient utilization of system resources.

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