
	Job Entry Subsystem


	Home > Data Center Definitions - Job Entry Subsystem

SearchDataCenter.com Definitions (Powered by WhatIs.com)

EMAIL THIS

LOOK UP TECH TERMS		Powered by:

Browse tech terms alphabetically:

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z #

Job Entry Subsystem

Digg This!

StumbleUpon

Del.icio.us

- 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 system by system administrators or other users in job control language (JCL). The operating system then sends the job to the JES program. The JES program receives the job, performs the job based on priority, and then purges the job from the system.

There are two versions, JES2 and JES3. JES3 allows central control of the processing of jobs using a common work queue. Both OS/390 and MVS provide an interactive menu for initiating and managing jobs.

LAST UPDATED:

03 Nov 2005

Do you have something to add to this definition? Let us know.
Send your comments to techterms@whatis.com

BROWSE BY TAG

Server hardware, Mainframe computers, Information systems management, Configuration and change management, Data center operations management, Mainframe operating systems and management, VIEW ALL TAGS

Digg This!

StumbleUpon

Del.icio.us

RELATED CONTENT

	The mainframe is 45 years old In the early 1960s, IBM took a risk to develop the System/360, the precursor to the modern mainframe. Over 45 years later, IBM can point to unbroken...
	Using CICS dump tables to manage problems in online systems The CICS dump table feature can be useful for diagnosing and managing problems in online systems when the information you need isn't available through...
	High mainframe software costs may lead to platform's demise Are mainframe software costs too high or does software productivity and reduced labor costs lead to lower mainframe total cost of ownership (TCO)?

RELATED GLOSSARY TERMS

Terms from Whatis.com − the technology online dictionary

ACF2 (SearchDataCenter.com)

Calibrated Vectored Cooling (SearchDataCenter.com)

Data Center Decisions: Lights-Out or Managed Data Center?

SEARCH

TechTarget provides technology professionals with the information they need to perform their jobs - from developing strategy, to making cost-effective purchase decisions and managing their organizations' technology projects - with its network of technology-specific websites, events and online magazines.


TechTarget Corporate Web Site \| Media Kits \| Site Map All Rights Reserved, Copyright 2005 - 2009, TechTarget \| Read our Privacy Policy