The following content has been provided by the University of Erlangen-Nürnberg.

You'll see that my title is 100% German and 70% English.

And I'll try to keep going that way.

My talk begins with a little rise in Spagangenheit.

And then I will talk a little bit, so I'm maybe going to curse,

over what happened today.

And then I'll go further with a future-oriented discussion.

See, I learned a lot yesterday.

So my experience in Germany began in 1973,

where I got a letter from somebody that I think most of you would know.

It came, as far as I was concerned, from somebody named Hirt Matt Wiedekind.

But it contained a sentence that I still remember.

We consider you qualified for a full professorship in operating systems.

And that really surprised me, because I had no particular interest in operating systems.

I was interested really in making software development more of an engineering-like thing.

My own degrees were in engineering.

And as soon as I ended up teaching software, I began to notice something was wrong, something was missing.

Professor Wiedekind hat stand erklärt, that they had two Leerstühle.

I really can't do it anymore.

They had two positions, one for really operating systems and one for the structural aspects.

And then I realized that the issues that interested me were perfectly,

well, operating systems were a perfect case study.

And that's why I think I have looked always at operating systems, but with a broader goal.

Even today, I see this is an operating system, or yesterday was an operating system tagung.

And I saw what was in the program were all of the issues that came up when you try to design an operating system.

And I'll talk a little more over my reaction to yesterday.

I thought the papers were very good.

It surprised me.

What I found really difficult was not the German, but the acronyms.

Akronyms haben mich kaputt gemacht.

But I'll begin with just a little bit of personal history.

Very few people know it, but the first time I ever visited a German university, it was Erlangen.

I was invited by Professor Handler, whom I thought was Handler.

To a conference on man-machine interaction.

And you can see there's a paper, a book he published, and I have a paper in it.

The book was entitled, Display Use for Man-Machine Dialogue.

And I've only written one paper about man-machine interface.

I'll come back to that in a minute.

And it's in that book.

Now the interesting thing is that we've made a lot of progress, and some of the biggest progress is exactly in that area.

User interfaces.

One of the things I remember from that workshop, I remember many things actually,

because it was the first time I tried to read the advertisements for German positions.

But I remember that we were addressed by the burgemeister, or maybe one of the assistant burgemeister.

I didn't understand the difference then.

And he said that he had trouble understanding the title of the Tagung.

He said, man-machine dialogue, what is that, a discussion between man-machine?

I don't understand.

And then he said, then I remembered when I was a little boy, I had a train.

And I loved that train so much that I dreamt of it.