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There's a very lively startup scene in Berlin, but no-one in that scene seems to know that the world's first digital computer was built in Berlin. There's an obscure and easy to miss sign ( https://en.wikipedia.org/wiki/Konrad_Zuse#/media/File:2007-0... ) on the house he lived in while working on it, and another sign at the technical university, but that's about it. No big festivities in his name, no commemorations,…
Deutsches Museum has a great collection of computers, including a Cray 1 and an original Apple 1 kit donated by Steve Jobs. However, most of the exhibitions in Deutsches Musem - including the computer science one - seem to be stuck in the 90's.
Not sure if you would like to see newer machines or older ones. If you are complaining about the missing old ones, then it's not true.
The Deutsches Museum in Munich as a Z3 and a Z4:
https://www.deutsches-museum.de/ausstellungen/kommunikation/...
It also has a "Siemens 2002" from 1960.
https://www.deutsches-museum.de/ausstellungen/kommunikation/...
And a UNIVAC I (IBM) from 1956:
https://www.deutsches-museum.de/typo3temp/pics/c0ba1ee858.jp...
Earlier quoted context omitted.
Many people i know in Berlin know that one of the first mechanical calculators is in the technical museum Berlin, but those people don’t know about concepts like turing-equivalent, so they call it a Computer. Many great inventions have a nationalist folklore surrounding it, often ascribing a development to some national hero, while ignoring the process of development as a whole or parallel developments in other count…
The proof that the Z3 is turing complete is pretty funny: https://news.ycombinator.com/item?id=1945455 http://www.inf.fu-berlin.de/inst/ag-ki/rojas_home/documents/...
For Turing completeness, a fixed, constant-sized program needs to be able to handle arbitrary inputs and use arbitrary amounts of memory. It's important to distinguish the model from the implementation here. Theoretically, a language like Python is Turing complete. (And BTW you don't need infinite precision integers or anything fancy: you can simply simulate the tape with an object graph.) Practically, every Python program running on a real computer will run out of memory eventually.
Anyway, the translated Z3 programs in this paper contain one case statement for every possible memory location. This means that for a given program size, you're limited to run in O(1) space. That's only as powerful as a finite state machine, not a Turing machine.
I see nothing in the paper that convincingly addresses this limitation. There are some arguments to the effect that practical CPUs have limited address space as well. Which is true, but that argument only shows that those aren't Turing complete either, not that the Z3 magically is.
Maybe there's a subtle point that I overlooked, but at the moment, I'm simply not convinced.
Deutsches Museum has a great collection of computers, including a Cray 1 and an original Apple 1 kit donated by Steve Jobs. However, most of the exhibitions in Deutsches Musem - including the computer science one - seem to be stuck in the 90's.
> seem to be stuck in the 90's. Not sure if you would like to see newer machines or older ones. If you are complaining about the missing old ones, then it's not true. The Deutsches Museum in Munich as a Z3 and a Z4: https://www.deutsches-museum.de/ausstellungen/kommunikation/... It also has a "Siemens 2002" from 1960. https://www.deutsches-museum.de/ausstellungen/kommunikation/... And a UNIVAC I (IBM) from 1956: http…
There's a very lively startup scene in Berlin, but no-one in that scene seems to know that the world's first digital computer was built in Berlin. There's an obscure and easy to miss sign ( https://en.wikipedia.org/wiki/Konrad_Zuse#/media/File:2007-0... ) on the house he lived in while working on it, and another sign at the technical university, but that's about it. No big festivities in his name, no commemorations,…
Isn't SUSE Linux named after Konrad Zuse?
It was developed by Germans, so SuSE means: Software und System-Entwicklung (or english: Software and systems development)
Deutsches Museum has a great collection of computers, including a Cray 1 and an original Apple 1 kit donated by Steve Jobs. However, most of the exhibitions in Deutsches Musem - including the computer science one - seem to be stuck in the 90's.
I can but hope it won't change too much. I love the exhibit on nuclear power (with a life-sized cutaway of a containment vessel), the air&space exhibit (which includes a V2, and a piece of the moon) and the Newtonian physics exhibit.
There's a very lively startup scene in Berlin, but no-one in that scene seems to know that the world's first digital computer was built in Berlin. There's an obscure and easy to miss sign ( https://en.wikipedia.org/wiki/Konrad_Zuse#/media/File:2007-0... ) on the house he lived in while working on it, and another sign at the technical university, but that's about it. No big festivities in his name, no commemorations,…
Additionally, Zuse was colaborating and supported from the Nazi-Regime, even though he himself was not a Nazi, nor did he directly supported their crimes. But this stain dimished education about his work for a long time.
Earlier quoted context omitted.
Isn't SUSE Linux named after Konrad Zuse?
As far as I know it's just an abbreviation that, by accident, is close to "Zuse", but has nothing to do with it (someone might want to correct me here if I'm wrong) It was developed by Germans, so SuSE means: Software und System-Entwicklung (or english: Software and systems development)
Earlier quoted context omitted.
As far as I know it's just an abbreviation that, by accident, is close to "Zuse", but has nothing to do with it (someone might want to correct me here if I'm wrong) It was developed by Germans, so SuSE means: Software und System-Entwicklung (or english: Software and systems development)
I always thought that this was not really a coincidence, but a clever pun on Zuse's name.
