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The world has a running Rational R1000/400 computer again (2019)

(datamuseum.dk)
53 points MaxLeiter | 1 comments | 07 Sep 25 02:46 UTC | HN request time: 0.276s | source
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joshu ◴[07 Sep 25 03:36 UTC] No.45155178[source]▶
https://en.wikipedia.org/wiki/Rational_R1000

Appears to be an ADA-based workstation?

Is this the same Rational as Rational ClearCase etc as acquired by IBM back in the day? Crazy

replies(4): >>45155222 #>>45155739 #>>45156310 #>>45193177 #
1. phkamp ◴[07 Sep 25 05:51 UTC] No.45155739[source]▶
This is not only where ClearCase comes from, this is where "The Booch Method", UML, and the software for the Space Shuttle, The International Space Station, EuroControl (= pan-european air traffic control) and the F-22 fighter jet comes from. (Plus who knows how much other militarg hardware...)

It is a truly astonishing software development environment which with a a single key-press can answer questions like "what other code is affected if I change the default value of a parameter to this function". (Think about that one for a second!)