J - Definitions

  • J

    JCL (job control language)

    JCL (job control language) is a language for describing jobs (units of work) to the MVS, OS/390, and VSE operating systems, which run on IBM's S/390 large server (mainframe) computers.

  • job

    In certain computer operating systems, a job is the unit of work that a computer operator gives to the operating system.

  • Job Entry Subsystem (JES)

    Job Entry Subsystem (JES) is 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 job control language (JCL).

  • job scheduler

    A job scheduler is a program that enables an enterprise to schedule and, in some cases, monitor computer 'batch' jobs (units of work, such as the running of a payroll program).

  • job step

    In certain computer operating systems, a job step is part of a job, a unit of work that a computer operator (or a program called a job scheduler) gives to the operating system.

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