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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: 0s | 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

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anticodon ◴[07 Sep 25 07:59 UTC] No.45156310[source]▶
ClearCase is the worst VCS software that I ever used in my life. Maybe in the beginning of 90s it was better than existing alternatives, but I was using it well in 2000s, and it was horrible experience compared to already existing Git, Mercurial and even Subversion.

And if you add the cost (around $5000 per workplace), it becomes even less understandable.

It also required a designated CC admin or several admins.

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1. phkamp ◴[07 Sep 25 16:14 UTC] No.45159493[source]▶
I'm personally no fan of ClearCase myself, it's far to rigid for my taste.

But if I were the pilot in an F-22 or the Space Shuttle, I probably would want it to be even more rigid :-)

It's important to keep in mind the context of this machine and the software it was used to develop.