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NASA still using DOS!
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As tragic as the Columbia disaster was, I couldn't believe this when I read it:
Data recovered from Columbia disaster - CNN.com
A 340 MB hard drive being used in 2003 running DOS!
Makes me wonder how we'll ever get back to the moon or ever get to Mars.
Steve
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C:\>_
Ohhhhhh yeahhhhhhhh
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I'd trust DOS over windows.
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I'd trust *nix over DOS or Windows!
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Originally Posted by ibook_steve
I'd trust *nix over DOS or Windows!
I'd trust OSX over *nix , DOS or Windows!
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If it's not broken, why fix it?
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Did you know those early liquid crystal watches? They were as powerful as the Apollo computers.
Read it somewhere years ago.
So DOS doesn't sound too bad.
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Heck, isn't an iPod more powerful than anything that ever went into space ?
-t
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Originally Posted by Atomic Rooster
Did you know those early liquid crystal watches? They were as .
I don't that is 100% correct. I read that the modern day calculators are more powerful then the Apollo computers but I never heard that the old 80's style watches were more powerful those the Apollo computers.
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Originally Posted by goMac
If it's not broken, why fix it?
qft
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Originally Posted by goMac
If it's not broken, why fix it?
I hate to find myself on the side of DOS but I agree.
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Here's the thing:
Technology that goes into space will always be behind the times. It has to be certified for ruggedness, and hold up against higher radiation. that's why there are 486 in space, but not the latest pentium c2d.
Additionally, we're placing this stuff in a key role in billions of dollars and people's lives. NASA is going to use that which has been tested repeatedly.
Programming for NASA means peer review and hand-reading of code repeatedly, because you can't allow for bugs when it comes down to navigation of reentry, or something as silly as, I don't know, breathing.
DOS? sure. Although, you must know - in the early 80s when they were still using Apollo era computers, six macintoshes networked matched the total power of all the other machines. Additionally, the Beowulf cluster for linux? Developed by Don Becker while at Nasa. Using 16 486dx16mhz machines.
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You'd be surprised how many public safety organizations still run their computer aided dispatch systems on 1980's era DEC VAX servers.
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an ancient operating system, DOS
which basically 90% of computers in the world still run.
I'll take DOS over windows any day. I do all my shiz in command line on windows
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I'm not sure 90% of the computers in the world still run DOS, but this is the ultimate example of using only the 'stable' releases. Upgrading causes problems, so critical elements stay with old systems for years. A lot of the shuttle is custom systems, so re-writing everything for an OS upgrade just doesn't make any sense.
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Originally Posted by scaught
which basically 90% of computers in the world still run.
Links, please.
-t
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Originally Posted by scaught
which basically 90% of computers in the world still run.
I'll take DOS over windows any day. I do all my shiz in command line on windows
NT, not DOS. Wasn't the last DOS-based OS Windows ME? (Ignoring FreeDOS when I say that.)
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Originally Posted by C.A.T.S. CEO
NT, not DOS. Wasn't the last DOS-based OS Windows ME? (Ignoring FreeDOS when I say that.)
I hope he didn't try to convince us of a bullsh!t statistic by including any Windows that had DOS under the hood.
It's like me claiming that 99.9% of all computers today use 512kB of RAM.
Statistically, this holds true for any computer that has RAM > 512kB, but it's still total BS because it sounds like the total opposite.
-t
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here's a little reading that'll make it clear to all.
HSF - The Shuttle
yep, it's 70's technology we use on the shuttles. that's what they came with. and vmarks is correct about the 486 micro processors on the ISS. NASA tests and retests and test again and then till failure and then determines why it failed. and that's what they require to be used. meanwhile the rest of the world is using generation whatever? version of the software/hardware. that's life at NASA.
as for customization of the wiring. the only wiring that gets changed for each mission is the midbody (payload) to flight deck configuration. and sometimes that involves re-pinning connectors. different electrical and sometime cooling attach points.
I'm still working on the shuttles so I don't know what the constellation (ares and orion) is using. but I hopefully will be working on that program. hopefully.
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There is also a radiation-hardened version of the G3, running at 166 MHz or so. AFAIK it's quite popular and used a lot in satellites and probes.
I'm not surprised that NASA uses DOS. When I was a student, many lab were using 286 for some primitive data retrieval. Very often, they contained a handwired ISA card to gather data from some instrument and DOS allowed you pretty much direct access to the hardware.
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Originally Posted by OreoCookie
There is also a radiation-hardened version of the G3, running at 166 MHz or so. AFAIK it's quite popular and used a lot in satellites and probes.
That's what's used in the Mars rovers.
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Remember too, it had been used to store data from a scientific experiment on the properties of liquid xenon. So it was a data dump, not like they needed 35 different fonts in 24 bit color with alpha channels.
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Lots of NASA folks use Mac laptops at work though.
When it comes to the other stuff, it is what ever gets the job done.
-Owl
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You'd still think they would have used a Unix flavor over DOS.
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Originally Posted by Big Mac
You'd still think they would have used a Unix flavor over DOS.
DOS is more simplistic, and the simpler, the smaller chance of there being bugs.
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No kidding, but there is a CAMERA.EXE and AUTOEXEC.BAT in the firmware of a Canon 300D, a dslr from what, 2003?
Dpreview forum link
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I think CNN needs to do their homework better. The shuttle computers use the same hardware as the B-52, the B-1B and the F-15. They do run a disk operating system, but it has really nothing in common with Microsoft's DOS. It uses an embedded instruction set developed by IBM and Rockwell for avionics. It is a custom, hybrid OS, made up of assembler and high level language (HAL/S) and is actually called "Flight Computer Operating System", not "DOS".
Oh, and it was developed nearly a decade before MS-DOS 1.0 was ever even released.
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Sure, and that's what's on the flight craft.
What's on the ground?
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Oops, I read the CNN piece quickly - missed that it was a payload experiment package, nothing to do with the Shuttle itself.
The experiment is this one - Preliminary results from CVX-2
It sounds like the drive was just used for caching data for transmission back to earth. I'd guess DOS was used in order to keep the computer as simple, and as low power draw as possible.
P.S. They were also using basically the same equipment as the 1997 shuttle experiment, CVX-1, so the OS was very likely a hold-over from that.
(
Last edited by Kvasir; May 12, 2008 at 02:20 PM.
)
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Originally Posted by vmarks
Here's the thing:
Technology that goes into space will always be behind the times. It has to be certified for ruggedness, and hold up against higher radiation. that's why there are 486 in space, but not the latest pentium c2d.
If you go onto eBay you can occasionally find those CPUs. They're pretty cool. It's all gold and shiny.
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Originally Posted by goMac
If it's not broken, why fix it?
Talk about progress. Just because it can do it's limited little job doesn't mean it should stick to it forever.
Imagine the scientific data they could come up with with better technology.
Not to mention playing it safe didn't work out so well.
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The reason they use DOS is because it's so old.
Software, no mater how new it is, is just riddled with junk code and and just plain corrupt crap. They have to go into space with perfect code and by now they have DOS perfected. To change now would be dangerous. I'm sure they test other stuffs. I read this somewhere.
All the crap that's happened has not happened because of computer problems but because of ice and lose tiles.
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Originally Posted by Atomic Rooster
The reason they use DOS is because it's so old.
Software, no mater how new it is, is just riddled with junk code and and just plain corrupt crap. They have to go into space with perfect code and by now they have DOS perfected. To change now would be dangerous. I'm sure they test other stuffs. I read this somewhere.
All the crap that's happened has not happened because of computer problems but because of ice and lose tiles.
AKA, Vista.
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Clippy
"You appear to be attempting a radical re-entry vector - would you like help with that?
/Clippy
Windows for SpaceShuttles has encountered a fatal error and must exit. To reboot your orbiter, press control alt delete....
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So is it metric DOS or imperial DOS?
Edit: damn it, zombie thread.
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The fact that you felt the need to bump this thread? I agree.
Edit: Post-jacking motha****er
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How the HELL did this get through the "you can't post to a thread older than a year" filter?? That rule was put into place SPECIFICALLY to stop this kind of stuff.
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Nemo me impune lacesset
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Originally Posted by Person Man
How the HELL did this get through the "you can't post to a thread older than a year" filter?? That rule was put into place SPECIFICALLY to stop this kind of stuff.
Lounge threads zombie-lock at two years; it was a relatively quiet change many months ago. There were some seasonal or annual threads that members liked to bump but the 1-year lock was preventing that. In the Lounge I'd rather err on the side of leniency so long as the 2-year timeframe isn't abused.
edit: anyway, that's an answer to your question, and we've reopened the thread, but a three-word generic bump is generally unconvincing.
(
Last edited by Cold Warrior; Mar 4, 2010 at 08:12 PM.
Reason: updates)
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The evidence is piling up.
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