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vidya.p · Beginner Joined: 24 Jun 2005 Posts: 3 Topics: 2

Hi

I would like to know what exactly is a control card and the purpose of it in realtime.I mean few different scenarios where we would use a control card.

Thanks and Regards
Vidya

kolusu · Posted: Tue Jun 28, 2005 5:55 am Post subject:

vidya.p,

Any sysin statements are considered as control cards for the utility. Take for ex: the sort utitlity.

vidya.p · Beginner Joined: 24 Jun 2005 Posts: 3 Topics: 2

Hi Kolusu,

Thanks for the information.

I have heard saying that information can be passed through control cards to a jcl. Can u please elaborate on the same.

Regards
Vidya

kolusu · Posted: Wed Jun 29, 2005 5:30 am Post subject:

Kathi · Posted: Wed Jun 29, 2005 5:34 pm Post subject:

In the "good ole days" when things were actually put on punched cards, then any card which was used to control the executing program was called a control card. The information in the card might be a date, a switch setting, or a parameter such as sort statements.

Now days we don't use cards, but the term still is used. Typically the input is 80 bytes if used instream in jcl, but it can be most any length. I have used control statements that ranged from 15 bytes to almost 200 bytes.

vak255 · Intermediate Joined: 10 Sep 2004 Posts: 384 Topics: 79

good to know that, all these days I wonder why they r called cntl 'cards', now got. Anybody wondering why mainframes are called as 'MAINFRAMES'.

A "mainframe" originally meant the cabinet containing the central processor unit of a very large "Main"-computer.The central processing unit of a large main-computer, usually receiving input from a number of terminals.The whole system got lot of "frames" built in it. Thats the name " Main-Frames".

raam_narayan · Beginner Joined: 28 Apr 2006 Posts: 12 Topics: 2

The Control Cards are basically used for controlling the JCL may be any action or in case if you are using any kind of Instream Proc.. For example let's take a JCL which does the Sort through the ICETOOL Utility.. We can define how many ever Control Cards we want for that Sort to take place according to our desire.. Let me give you an example SORT JCL which is done through ICETOOL..

Mervyn · Posted: Fri Apr 28, 2006 9:27 am Post subject:

He probably got the idea 9 months ago. Wink

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kolusu · Posted: Fri Apr 28, 2006 9:52 am Post subject: