(Job Control Language) A command language for mini and mainframe operating systems that launches applications. It specifies priority, program size and running sequence as well as the files and databases used.
 | Reproduced with permission from Computer Desktop Encyclopedia. Copyright (c) 1981-2008 The Computer Language Company Inc. All rights reserved. |
Additional Resources
- From Chapter one: Data Processing and the IBM Mainframe
- From Chapter one: Data Processing and the IBM MainframeWhen everyone is somebody, then no one's anybody.W.S. Gilbert, Gondoliers.So many managers. An employee without a management title will feel overlooked.Murph, you outline the functional groups for your organization based on the leader. That means the effectiveness of each one...
- Discussion threads 2008-08-15
- From Chapter one: Data Processing and the IBM Mainframe
- From Chapter one: Data Processing and the IBM Mainframeumm, good pointI'll change it to electro-mechanical.Thanks!possible error?[i]It was the first successful system designed “from the ground up” to advance automated data processing by replacing the physical cards and associated electro-mechanical gear with purely digital processing and magnetic tape or disk storage,...
- Discussion threads 2008-06-13
- BIt: From Chapter one: Data Processing and the IBM Mainframe
- BIt: From Chapter one: Data Processing and the IBM MainframeReading this gives me the shakes......by bringing back my days at the Chubb Institute in 1991, learning BASIC, OS JCL & COBOL. MANY hours of flow charting...WITH PENCIL & PAPER...and many more hours at a terminal trying to get what I...
- Discussion threads 2008-06-06
- BIt: From Chapter one: Data Processing and the IBM Mainframe
- From Chapter one: Data Processing and the IBM Mainframe This is the 4th excerpt from the second book in the Defen series: BIT: Business Information Technology: Foundations, Infrastructure, and Culture Note that the section this is taken from, on the evolution of...
- Blog posts 2008-06-06
- From BIT Chapter one: Data Processing and the IBM Mainframe
- From Chapter one: Data Processing and the IBM Mainframe This is the 2nd excerpt from the second book in the Defen series: T Business Information Technology: Foundations, Infrastructure, and Culture Introduction The IBM mainframe or data...
- Blog posts 2008-05-23
- SlickEdit 2008 (msi)
- SlickEdit is a cross-platform programming editor that runs on Windows, Linux/Unix, Mac OS X, Solaris, AIX, Solaris x86, and HP-UX. The SlickEdit code editor provides support for more than 40 programming languages including: Ada, C, C++, C#, dBASE, HTML, Java, JavaScript, JCL, Perl, PHP, Python, SAS, VBScript, XML, YACC. SlickEdit...
- Software downloads 2008-04-23
- z/Scope Workbench (exe)
- z/Scope Workbench is an essential set of integrated tools for accessing IBM Mainframes, IBM AS/400 and Unix servers. It includes a multi-host terminal emulator, a remote Code Editor for Windows all and a full FTP client, all in one solution. This is ideal to suite the daily needs of Systems...
- Software downloads 2008-01-10
- Is software a form of applied mathematics?
- Last week's licensing discussions sprouted an interesting, if off topic, thread on a number of computer language related issues. One of the issues raised strikes me as fairly fundamental: is software a form of applied mathematics?Here's how occasional contributor b3timmons stated one side of this argument in response to...
- Blog posts 2007-06-04
- Cheerfully spreading paranoia
- Â A couple of weeks ago Cringley used his PBS pulpit to announce that IBM planned to lay off 150,000 people in the United States. Since IBM Global Services doesn't employ that many people, the report was quickly discredited; whereupon Cringley tried to argue that, regardless of the number, something evil...
- Blog posts 2007-05-20
- Annotated SAS/GRAPH Plot of z/OS Goal Mode Performance Indexes Using Macros and MXG Software
- This paper displays an annotated SAS/GRAPH plot of IBM z/OS Goal Mode workload service class performance indexes by using macros and MXG software. The graph is generated via a batch job using the SAS JCL procedure on an IBM mainframe server or Central Electronic Complex CEC using the z/OS platform....
- White papers 2007-05-14
- BEA to run Java sans operating system
- BEA to run Java sans operating system"Liquid VM"?That has to be the least sexy tech name I've seen in quite awhile. I won't even say what it sounds very similar to...Groundhog day?I think that all this does is make clear that Java and JEE even more so is losing...
- Discussion threads 2006-12-11
- Introducing the zPMT (z/OS Profile Management Tool)
- "zPMT" stands for "z/OS Profile Management Tool." It is a workstation-based tool used to generate the customized JCL batch jobs that ultimately create the WebSphere Application Server for z/OS cell up on the z/OS system. zPMT is a function of the "Application Server Toolkit" AST that is provided with WebSphere...
- White papers 2006-12-07
- IBM aims for user-friendly mainframes
- IBM aims for user-friendly mainframesThere is no hope.The writing is on the wall. The end of the mainframe is coming.IBM quit the PC businessIBM will soon find that its mainframe business is coming to and endreally...I think MF's are still viable. We have one large MF and a ton of...
- Discussion threads 2006-10-04
- Using Dependent Variables in Tivoli Workload Scheduler for z/OS
- Tivoli Workload Schedule for z/OS TWSz provides variable support. This support allows TWSz predefined and user defined variables to be used in jobs scheduled by TWSz. TWSz will translate these variables prior to submitting the JCL to JES. This allows numerous possibilities to enhance the job scheduling environment and can...
- White papers 2006-08-08
- The meaning of 'relational'
- A lot of talkback contributors and others have muttered about the general failure of most application developers to make full and effective use of relational technology in their work. My guess, however, is that not too many of these people would agree to the same set of assertions either about...
- Blog posts 2006-06-06
- Reviewing the mainframe
- Reviewing the mainframeThanksI think you have shown that you have done your homework on this article unlike many of your blogger peers.The mainframe cash cow is IBMs bread and butter. People run their 30 year old COBOL code on multi-million dollar mainframes - all the while with other machines gaining...
- Discussion threads 2006-05-15
- IT Commandment: Thou shalt honor and empower thy (Unix) sysadmins
- In data processing your machine operators are nobodies - essentially semi-skilled labour invisible to anyone outside the glass room. In science based computing (i.e. Unix), however, your sysadmins are the people who work with the user community to make and implement the day to day tactical decisions characterizing successful systems...
- Blog posts 2006-03-21
- Moore's Law - and Murphy's corollary
- I have a cynical corollary on Moore's law as commonly understood to predict rapid, evolutionary, change in microprocessors. It goes like this: "in computing, as elsewhere, expertise decays in the presence of technical change, leaving only out-dated reflexes and organizational position in its place." I've worked, for example, for a...
- Blog posts 2005-08-11
- Worm spells double trouble for PCs
- Worm spells double trouble for PCsWould this affect my new iMac?see subjectShould the head line read...Worm spells double trouble for idiots or companies who rely on moronic admins who don't know how to properly configure a firewall and still haven't patched workstations despite the fact that the patch has been...
- Discussion threads 2005-07-15
- Customizing the IBM Tivoli Workload Scheduler for z/OS (TWSz) Job-Library Read (Fetch) User Exit
- IBM Tivoli Workload Scheduler for z/OS TWSz is a very versatile workload scheduling system that has been enhanced to meet a variety of Customer requirements over the years. The selection of customization options available has become almost overwhelming, but even so there can be specific needs that require extensions to...
- White papers 2005-06-23
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