Here's a site that may have more info for your reading pleasure, 
http://www.punchcardreader.com/
I have used this service to decode several hundred punched cards several years 
ago.
The historical society that I'm a member of has thousands of punched cards with 
no real way to read them anymore.  To compound not being able to read the 
punches these cards also contain handwritten data on each card.
We have cards that contain train crew records, static data like employee name, 
employee number, employee phone number and other stuff.  Handwritten data 
appears to be a months' worth of dates for when they worked that month/day.
We also have cards that contain train movements.  The punched data would be for 
a symbolled train and it starting location with time of call and a destination 
location.  Handwritten info would include employees name for (Engineer, 
Fireman, Conductor, Flagman, Brakeman).
All of these cards are from 1972-1975.

My point is that punched cards were used for many different reasons and many 
different ways.
If I remember correctly the Western Maryland Railway was one of the first if 
not the first railroad to incorporate the use of IBM computers and punched card.

Ken Mazer
Former President, WMRHS

-----Original Message-----
From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> On Behalf Of R.S.
Sent: Tuesday, June 02, 2020 10:20 AM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Punched cards and character set

I have never used punched cards, so forgive me my questions.

As far as I know, a character set on punched cards was somehow limited, so it 
is not EBCDIC or similar set of 256 characters.
Of course that means some limitations for DD * datasets - if coded on real 
punched cards.
Nowadays I'm pretty sure DD * accept every possible character, as any other 
dataset (with some exception for delimiter). Note, it is program independent - 
this is a change within system (JES2, Interpreter, whatever).

Q1: how it was in the past? I mean, were the DD * limited to "punched card" 
character set? Or it was always full EBCDIC if the job was read from DASD?

Q2: What about character set on the cards? Was it always one and the same 
within S/360 family? I noted there were several character sets, but as far as I 
understand those set was for other machines (Remington,
pre-S360 IBM machines, etc.)
Was there any name for card character set? I mean something like "CP 037" or so.


And another question, or rather kind request: Does anynone have JCL statements 
on punched cards? I would like to get/download some images of JOB, EXEC, and DD 
statements on punched cards. I have a lot of card pictures, but none with JCL.

--
Radoslaw Skorupka
Lodz, Poland





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