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The Job Entry Subsystem (JES) is a component of IBM's MVS (MVS/370 through z/OS) mainframe operating systems that is responsible for managing batch workloads. In modern times, there are two distinct implementations of the Job Entry System called JES2 and JES3. They are designed to provide efficient execution of batch jobs.
CA-7 is a job scheduling / workflow automation software package sold by CA Technologies (formerly CA, Inc. and Computer Associates International, Inc.). [1] It is commonly used by banks [2] and other large enterprises with IBM mainframe IT computing platforms.
A mainframe computer, informally called a mainframe or big iron, [1] is a computer used primarily by large organizations for critical applications like bulk data processing for tasks such as censuses, industry and consumer statistics, enterprise resource planning, and large-scale transaction processing.
Remote job entry, or Remote Batch, is the procedure for sending requests for non-interactive data processing tasks to mainframe computers from remote workstations, and by extension the process of receiving the output from such jobs at a remote workstation.
All modern IBM mainframe operating systems except z/TPF are descendants of those included in the "System/370 Advanced Functions" announcement – z/TPF is a descendant of ACP, the system which IBM initially developed to support high-volume airline reservations applications.
Computerized batch processing is a method of running software programs called jobs in batches automatically. While users are required to submit the jobs, no other interaction by the user is required to process the batch. Batches may automatically be run at scheduled times as well as being run contingent on the availability of computer resources.