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What ever happened to Tandem and NonStop OS 2013


It seems she was kind of tied to the mast at DEC when that ship went down; and hasn't taken in what has happened in the computer industry since around 1990, and nothing from outside DEC since long before that. DEC was a very inwards-oriented organizetion, she is far from alone in this "DEC has it all" mindset.

I try to open her eyes on all of this.

As time goes by I see clearly why places like MIT throw things like full-blown LISP at undergraduates. This is one of the few tools that force you to mentally step in and out of the systems you build.

And, "OS writers" nowadays have a few abstraction layers between them and the iron. Most work is done in c-like languages, there is very little bare iron programming. And besides, you program for a reference design anyway. Nearly every computer I have have different CPU designs and have significant differences in behaviour.

What ever happened to Tandem and NonStop OS 2015
Greg Menke Oddly enough the compiler weenies probably get there first too... What do you think happens when a decent compiler + OS combo trips over a FP error ? The decent...

I agree on that, I need to nail down some definitions.

But I see this divide between people daily. The defining part seems to be the semantic abstraction, and wheather the code is "imperative" or "descriptive".

Example :

What ever happened to Tandem and NonStop OS 2016
OTOH, we had a situation where the floating point context switch wasn't complete due to a poorly documented...

I wrote a Q&D X.25 implementation once. It was a hatchet job, but it done with tools that would have seen approval in a CS course. All state and variable driven, but the framing part was a bit ugly. Definate "compiler thinking" behind it. Large semantic distance between the code and the bits on the wire. Totally "descriptive" coding, just describing what is going to happen at event x.

What ever happened to Tandem and NonStop OS 2014
I gave up a long time ago. Her persistent "I refuse to understand anything that's not TOPS-10" certainly drove me to killfile a well-meaning, (mostly...

When I handed off the project I discovered much to my surprise that "comms experts", with lots of X:25 etc experience just didn't get the idea at all, but cs grads normally doing databases and abstract stuff got it at once. They were used to descriptive, non-imperative languages.

-- mrr


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