I wanted to give it to our new sysprogs.  They are younger people, recently 
promoted from operations.  
I thought they would get a chuckle out of it too.

-----Original Message-----
From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> On Behalf Of 
Michael A. Shaw
Sent: Saturday, April 24, 2021 4:21 PM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Re: Diagram of MVS Control Blocks

[External Email. Exercise caution when clicking links or opening attachments.]

On 4/23/2021 3:43 PM, PINION, RICHARD W. wrote:
> Many years ago, 1982, I took my first MVS class, MVS Structure and 
> Logic.  One of the first handouts our class was given was a spaghetti diagram 
> of MVS control blocks.
> Unfortunately, I threw mine away in 2016, when I thought my system 
> programming days were over.

I took that same two-week class in Chicago in 1980. The diagram in question (as 
I remember it) was a joke, right? It was impossibly complicated with curved 
lines and arrows and flowchart symbols all over it. It was made to generate a 
chuckle, not teach actual logic flow.

I too had a copy once, but it's long gone.

Mike

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