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jimray

NASA successfully debugged a 46-year-old computer that has a latency of nearly two full days. That is truly awesome.

blogs.nasa.gov/voyager/2024/04

37 comments
Peter Wood

@jimray

I think you have to upgrade to the Professional Edition for natively supported remote debugging.

Rémy

@jimray I like how you didnt say where the debugged computer is. A small detail I guess 😅

Risotto

@rusty @jimray

Right Ascension: 17h 16m 04.8s
Declination: 12° 20' 30.1"
24,417,733,820 km [16.9 km/s]

would you like to lock this device? y/n

Joe

@jimray having programmed computers of that era, I got oddly tense reading the article. I imagined the process of updating calls and jumps to the new addresses. Back then updates could easily "brick" a computer. Sometimes with perfect code that somehow didn't load right.

What an amazing achievement.

Sean Boyer 🇵🇸 FREE PALESTINE

@jimray
Voyager is one of my favourite human stories, and it's a story that keeps on giving.

zvhxxl

@jimray What do we need new computers for if the 46 year old ones still work?

Kevin Russell

@zvhxxl @jimray

Microsoft has announced the computers running last version, the present version of "Windows" are all garbage that should be thrown out, they wont provide an ounce, a litre, a milometer of support for the virus attractors.

Not suggesting, or even offering a better solution, because feelings, but Linux, like the Mars Rover. And they keep running for millions of miles, and years over years.

enoch_exe_inc

@zvhxxl @jimray Well, computers have gotten much faster, cheaper, and more efficient over the years. However, it seems that we, the programmers, have been wasting all that extra computational power on making everything look pretty rather than optimise and make every byte of memory count.

enoch_exe_inc

@zvhxxl @jimray Here’s a random interesting fact: Voyager’s onboard computers were constructed from 7400-series transistor-transistor logic circuits, which I have actually used to design my own CPU. Virtually. I designed a fully functional 16-bit CPU inside my computer using circuit design software (and later ported it to #Minecraft). That’s how much faster computers have gotten since 1977.

Aaron

@zvhxxl @jimray Because software is like a catfish: it grows until it fills all available space in it's environment.

Build a faster CPU, and the next version of the software will gleefully get bigger and slower and use up gains in speed.

Deb4+ aka Deborah DT 🏳️‍🌈🏳️‍⚧️

@jimray

But science isn't real so.... Blah blah blah

/ s. great work!

Kevin Russell

@jimray

Really good magnifying spectacles, biceps thirty miles long, forearms 3 million miles long, and those fingers!!!!

Jens Christian

@jimray @hypebot these engineers would probably make 10x the salary if they went to San Francisco...

... but they don't, and I love them for it.

Yoshimatsu ✅🇺🇸 🇺🇦

@jimray This is amazingly mind blowing. I'm sure it was a purpose built computer but I like to believe the work we did at Digital Equipment Corp (DEC) contributed to this spectacular achievement.

Stefan Fendt

@jimray

That makes up for a really bad round trip time... 👍

Timo

@jimray That sounds like the latency on my VPN provider 😅

Nilla Prynn (ThirdEarGames)

@jimray i knew they had brilliant engineers at NASA. i did not know they had legitimate miracle workers.

MaxiPalle

@jimray This made mx day! Congrats to the NASA team.

Nicolas Ward

@jimray @joelhousman I'm pretty sure my team at work is tired of me posting these stories as examples of how to do ops.

StarkRG

@jimray Using tab complete would be truly painful.

Dаn̈ıel Раršlow 🥧

@jimray
Pretty sure what really happened was the credit card on record for the Voyager SaaS subscription expired and they just entered a new one.

xs4me2

@jimray

Just a matter of patience and latency…

4everpushingaboulder

@jimray Godspeed Voyager! #nasa #nasajpl y’all are some steely-eyed misslefolks!

HTPC NZ

@jimray ah that must be why weird nerds think move fast break things model adopted by likes of SpaceX will be far more successful in space exploration compared to this dinosaur ways...

Conley Edwards

@jimray imagine seeing a 44 hour ping time on speed test!!! Latency looking pretty bad on this one boss! 🤣🤣🤣🤣

Gordus Elkor

@jimray almost as difficult as walking an elderly parent through setting up a new app on their phone.

selje 🇺🇸 🇺🇦

@jimray
Wonder if they used Jovial for that computer or if it was done in assembly or binary? Surely not ADA! 🤔 😉 😜

Paul

@jimray such an amazing team of passionate individuals.

Paul

@jimray and to think they did this amid a budget crisis, losing 500 colleagues, and just general uncertainty that the thing they've worked so hard on for decades could be revived. So inspiring.

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