The Core Memory Project



Memory Dumps

‘All I can say, it is a wonderful site, and very professional!’

Patrick Jankowiak

‘The site looks great. You must have great perseverance to have tracked down all that information. Some great memories there’.

David MacGregor

‘Very nice site. The pictures bring back a lot of memories’.

Rick Wetzel

‘Thank you for sharing this. Your site looks very clean and crisp, I like that (personally)’.

Cornelis Robat

‘Your website is fantastic! Very well done’.

Bill Maddox

‘It is very nice already and brings back Memories of the good old times, when one knew exactly what the Computer was doing, or why not’.

Patrick Steinbrenner

‘Your site brought back many memories. The NCR 315, 390, and 500. NEAT, BEST, and stop wrenches. (I was at NCR '66-'68.) I'll love around the basement for pictures. Great site’.

Jay Cross

‘Very nice site & it DOES bring back memories’.

Kim Colwell

‘I have visited your site today (again) and I'm really impressed of all your work you’ve done. GREAT!!!’.

Peter Blaessing

‘I have been thinking of recording my memories of life with a 4120 and seeing your web site may just persuade me to do so now’.

Peter Dick

‘This site really brought back some memorys. I went through NCR 315 School (Dayton) back in the early 60's when every Friday was "bet your job day". My first trip to Dayton was 42 weeks long. When I got back to my Branch I remember making "big money" $135 a week! So many interesting & frustrating service calls. Thanks for your site...’

Ed Creter

‘Thank you for this site!! I am VERY impressed with what you've done and look forward to more NCR nostalgia from your Club Members.’

Dave Morton

Thanks for your site, it's a valuable addition to computer history!

Mark Medin

Interesting site.  I started out in the computing business from a vendor (not customer) standpoint in 1968 when I joined NCR in Dayton. Software QA. Testing software for the Century Series. Programmed in NEAT/3. Transferred to Rancho Bernardo where I eventually became the Software QA Manager.

Don Harkness

As an old time NCR Mainframes Field Engineer - Century Series, Criterion, 9800, and all related peripherals - I have been greatly impressed by your work to record the NCR History, and I was filled with nostalgia. I have also been happy, while reading your pages to remember an old colleague, Peter Blaessing, with whom I've had the opportunity to work in Athens many years ago.

Emmanuel Georgantas

The images on the site brought back a few memories for me. I worked in NCR, Dundee factory, as a technician from 1967. My first experience was on a 299, followed by a 399, later graduating to the electronic testing side of Century's before becoming involved in PCBs associated with the electronics in the NCR ATMs. All in all I enjoyed my working life with NCR

A great bit of nostalgia.

Alex Beattie

What a great site. I hope it serves as a magnet for those like me who occasionally search for history of NCR computers

J.W. O’Connor

Just discovered this site and felt, as a former NCR-315 expert, I should join this community. I'm from The Netherlands and started as a programmer with NCR's Data Processing Center at The Hague.

Jan Heek

Memory Dumps 

COBOL Course in Leningrad
Heinz Groetsch, Copyright © 2006

The story I’m now going to tell you deals with my visit as a teacher to Leningrad and the impressions I could gain there.

My manager told me in April 1978 to hold a COBOL course in LeningradHeinz and Herta. That was something special to me for the very reason already that in those days Communism was still reigning in Leningrad while I had grown up in West Germany with another ideology. I’d already often had students in my Augsburg courses from Poland, Yugoslavia and CSSR, but teaching a class in the USSR itself was something new. I prepared myself very carefully for this course.

As to the experience itself, teaching such a course was certainly no challenge. I’d been active at NCR in EDP since 1968. I started my career as a programmer on the 315 system with the program generator BEST; after that, I was trained on the Century system with the operating system B1 and the programming language NEAT/3. I participated in Level 2 training and in courses on the operating systems B2, B3, B4 and VRX for the respective computer systems. I also thought some problem-solving courses in Germany, Switzerland and Austria. And I got to know the 8200 system with the IMOS operating system in different courses in Wichita. Of course I also learned the COBOL language. I felt therefore that I was experienced class.

On Monday the 7th of May I flew to Leningrad. Since the 9th of May in the Soviet Book, presented to HeinzUnion was the day commemorating the victory over the Nazi system from Germany, the course had to start at the 10th of May. When at this morning, I was picked up at the hotel with a cab to the Education Center of the Commercial Seaport of Leningrad, I confess I was terribly excited. Sasha was a great help from the very beginning. If there were any difficulties, be it translating from German into Russian – we had yet another translator from Riga – be it the subject matter itself, Sasha masters every problem. It was he who created a good course atmosphere. All students worked together well, and I think every participant was able to draw a benefit for himself from this course.

Technically there were no problems. Sasha went out of his way to show me Leningrad and his sights. I noticed for example with great interest Sasha and the other fellow students viewed coffee or tea cups of various ages and rulers showcased in a room in the Pushkin Palace. Impressive! In addition, Sasha showed me Peterhof, Pavlovsk and the famous boulevard Nevsky Prospect. We often sat together long hours at the hotel beginning Book, presented to Heinzwith technical details of the course and than talking about things that interested us about our countries.

Time flew very quickly and I was convinced to have the best job in a company most ideal to me.

I would also like to tell about a small mishap. On the way through the customs Sasha had brought me to the airfield. When I showed my passport and my luggage in the control area I was suddenly sent by the customs officer in a delimited area. There the customs officer asked me, what I have done in Leningrad because I had so many specialized books thereby. I told that I have teached a COBOL class and showed him full of pictures book of the Winter Palace silver treasure cherished by me. The students had given me this book as a parting present dedicated to “the best teacher we ever had”. From this moment on nobody spoke a word with me for a while. In my visa “TOURISM” had been noted as the purpose of the trip. Sometime later, this difficulty too was solved. They wished me a good trip, and off I jetted to Germany.


The Story of My Instructor
Aleksandrs Guba, Copyright © 2006

I have had my COBOL 74 NCR 8250 IMOS III Course in Leningrad from 10th of May, 1978 till 26th of May 1978. Fourteen of us, students from Leningrad and Riga, and Heinz COBOL 74 NCR 8250 IMOS III Course in LeningradGroetsch – an instructor from Augsburg, West Germany. Classes took place at the Educational Center of the Commercial Seaport of Leningrad. All the instructors, who taught our staff in the former USSR were from West Germany, perhaps because the NCR computers, that we had, were produced at the NCR factory in Augsburg.

The course was an easy one for me, as we already were quite familiar with NCR 8250 IMOS III Operating System and COBOL 74 programming language, because our Computer Center obtained our very own NCR 8250 computer in 1977. From other side it was very interesting to have a second pass of COBOL 74 with instructor to clarify certain nuances, as we studied the language ourselves using NCR IMOS COBOL Student Text, arrived with the computer.

I was just a little bit over 25 years old at that time, successful young programmer, having the full World beneath his knees, knowing everything about computers and especially COBOL, and, of course, from time to time tried to help the instructor to teach the Course. Thanks to God, the instructor was clever guy and looked at my attempts to help him politely.

In a few days we became friends and begun to call each other by names, Aleksandrs and LudmilaHeinz and Sascha (the short form of my full name Aleksandr). I was very proud showing to Heinz the city of Leningrad and its famous suburbs: Pushkin, Pavlovsk and Petergof. Generally after returning from the excursions we were sitting in a bar of the hotel, where Heinz stayed, discussing various themes, starting from computers and ending with how the life goes on in our countries.

At the end of the Course we obtained Diplomas and made common photo: instructor and students. I was very pleased and surprised when after several weeks I and my colleagues were presented with computer print-out list, having the photo and our names printed on it, made by Heinz. This print-out survived over the passed years and I still have it among my NCR artifacts. We never met each other since those times.

Some things just turn up when you least expect them. One calm February evening of the year 2005 I saw ’Enigma’ movie on TV and liked it very much. In a week I’ve bought a book on which the said movie was based. After reading it I decided to find some more facts about Enigma on the Net. One link - Dayton Codebreakers - lead me to the site of Montgomery County Historical Society where I found that the NCR - The National Cash Register Company - has been involved in the very special project during WWII - Enigma - which played a central role in the Battle of the Atlantic.

Surfing further I discovered that in August 1, 1998 the National Cash Register Corporation and the Montgomery County Historical Society joined in an innovative partnership committed to preserving the NCR Archive. The ends met: NCR, Computers, Leningrad... It was like a greeting from the old friend. Of course I decided to refresh my memory and find something about NCR computers on the Net. Poor me! I’ve spent a lot of time, trying to find that something, but it gave me too little. So, finally, I decided to apply to the Net audience for help.

I wrote: ‘Unbelievable, - no chance to find anything about my first computers on the Net! I started my programming experience in 1976 with NCR 299 and NCR 399. Later there was NCR Century 8250 - an outstanding computer of its time... Because next year there will be 30 years since I became familiar with programming and NCR computers, I decided to collect materials (pictures, technical data) regarding old (2nd half of 20th century) NCR Systems, having in mind to create personal site about them. All my attempts to find the above mentioned materials were unsuccessful. Can you please help me with the materials I am looking for?’

It cost me some weeks to take the right course and one of the first contributors to The Core Memory Project, I named it so, was Peter Blaessing.

On February 21, 2005 I received an email from him, in which he wrote:


You finally reached one of those old dinosaurs that are still working for NCR and who is knowing what you are talking of.

Actually I started with 644 (a system that was available just before the 299/399), then the NCR Century series and also with the 8200 (B-Series and IMOS OS). Then I went to the Criterions (85xx, 86xx and 88xx) and finally stopped my pure customer support with the 9800 back in 2001. So a long way along with those so called NCR "Legacy" systems.

I've investigated a little and found some pics you might be interested. Please note that all pics are under copyright of myself, so if you want to use them, please include my name in the description. These are the pics I found so far. Maybe I'll send you more if I stumble over any…

Best regards

We started exchange messages and Peter provided me with a lot of very interesting photos of NCR computers. On September 20, 2005 I wrote to Peter:

Hi, Peter.

Thank you for the kind and informative letter and a significant contribution to the site's Gallery! The pictures are already placed there.

I've never been to Augsburg, but I have heard about the city from my instructors of NCR Germany (they are mentioned on 'My NCR Computers' page). Last month I wrote an email to Augsburg's Magistrate asking them whether they may help me to find any of the instructors who taught me almost 30 years ago. They answered that they will try to do something to it. Absolutely crazy idea of mine, isn't it?...

Kind regards,

The answer, which arrived two days later was a real surprise for me:


Hi, Aleksandrs.

Great! I may help you with the instructors, as I personally know two of them:

a) Heinz Groetsch, this is his email address: ....

b) Rolf Ruf, this is his email address: ...

Please note that they both have retired, but they read their emails once in a while. So you might get in contact with them.

Best regards

I replied with following:


Hi, Peter!

Thank you very much ... especially for the addresses of my former instructors. Wow! Unbelievable! That's GREAT! I've already sent them short messages and now awaiting replies...

Thanks once again.


Too many years passed since the year 1978, so I was very careful and a little bit official while writing to Heinz:


Dear Mr. Groetsch,

I have this possibility to write to you thanks to the kind help of Peter Blaessing.

Quite a long time ago, in 1978, you was an instructor for the programmer's team in Leningrad, former USSR, teaching them NCR COBOL 74. My name is Aleksandrs Guba and I am one of those programmers. At that time I was working for the Computer Centre of the Container Terminal of the Sea Port of Leningrad…

Because next year there will be 30 years since I became familiar with programming and NCR computers, some month ago I decided to collect materials (pictures, technical data) regarding old (2nd half of 20th century) NCR Systems, having in mind to create personal site about them.

Now it is possible to see the very first version of the site and you are welcome to this unofficial opening: where you can find my Diploma signed by you as well as your photo where you are also present with some of your students, including me (My NCR Computers page).

In case you wish to send me some words or have any pictures or texts regarding NCR computers and want to share them with other people, please let me know.

Aleksandrs Guba

The answer came in a few days:


Hello Mr. A Guba 

I myself was very pleased over your e-mail from 23.9.2005.

I am remembering still of our time in Leningrad and knows, that we have addressed ourselves then with Sascha and Heinz. I think we should remain at this.

Therefore dear Sascha, with large delight have I studied your Internet project “thecorememory”. Congratulations to this idea.

I am, like you heard from Peter Blaessing, since 10 years in the retirement. Because at the 19. September 1995, on the way from the NCR to my home, I had a heavy accident. I crashed with my Vespa scooter in a small transport vehicle. Since this moment is paralysed my right body side. I sit thus now the most time in my wheelchair.

Since the 22. August 1978 I am married. We have however no children. I send you in the appendix a photo it is a year old, and shows me with my wife, who helps me always and so is my life also after my accident still pleasant.

Dear Sascha I would be happy, if we would write ourselves furthermore e-mails .


We started exchange emails, - it was a real pleasure to find the old friend but at the same time it was a great pity to know that life changed dramatically to him. Some times ago I wrote to Heinz, asking if I may write a short story about us and put it on my site. Heinz answered:


Dear Sascha,

Please excuse me for not answering so long. Unfortunately I now need more time to do my job than formerly.

Now to your questions you asked me in your last e-mail. I have no stuff which remained from our common work in the NCR. That is, because I was never more in the company. My stay in different clinics took 9 month in totally and meanwhile my colleges put in order my desk.

I am personally yet not able to write a report about our time in St. Petersburg. But I promise I will do it a little time later.

But it would be my pleasure if you would like to put a short story to the site about how we found each other…


So did I.




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