These were field deployed systems, no backups (they were heavy enough as it was, and in-home networking at the time consisted of 14.4Kbps modems).
In the NIH case it was more a matter of not wanting to deal with the question of whether data was potentially corrupted or biased by the recovery process - easier to just acknowledge loss of a small percentage of the data and move on. They had thousands upon thousands of hours of recordings that were all similar. If an event of special interest had happened on a corrupted drive they might have tried harder, but only 3 or 4 events of special interest happened in the whole study - drives weren't corrupted in those cases.
Hey, isn't this how "vertical" recording works? Not really, but your point is good for modern drives. Old floppies might have been inefficient enough that you could do this kind of recovery, but a modern Terabyte drive is so dense, you'd have to have next decade's technology to attempt a recovery.
I thought this would be fairly obvious from the fact there doesn't exist any recovery services that will recover zerod out data for you, at most they can usually try to recover data that has been deleted(forgotten) by the operating system.
We provided hardware for a NIH funded study once, they would occasionally mung up a removable hard drive by pulling it out while running. They were aghast at how easily they had lost their "valuable" data and insisted that we recover it for them, which we offered to do for a reasonable (like $20/hr) rate. After a few estimates of what it would cost to attempt to reconstruct the drive beyond a standard Norton disk repair, they opted to just write it off rather than deal with potential data integrity issues.
If the data had been GPS coordinates of Iraqui WMD, I suspect they would have wanted to try harder, but after a single wipe it becomes REALLY expensive to reconstruct the data.
In all seriousness. If the government wants to get information, they are not going to the trouble of an electron microscope to look at your hard drive. I'm sure they have other methods of extracting the information they want. While this information (about how many wipes you need) is interesting from a theoretical point of view, it is useless from a practical one.
A few years in Gitmo and you'll tell them whatever they want to hear... doesn't matter what was or wasn't stored on that drive anyway.
I thought a few weeks ago we were supposed to drill holes in the drive platters and fill the case with thermite, then drop the whole computer into the fires of mount doom.
Oh, socially speaking, work from home is still 99% taboo. I think many of the people who are getting to work from home these days are the ones whose managers feel the office would be better off without, but are still unable to fire for some reason. At least that's what I've seen in the places I have worked and the people I know who do work from home.
Sure, there are lots of people who brag about doing it, mostly web journalists, but 1% of 100 million is still 1 million - plenty to make noise about "I'm doing it!", leaving the other 99 million of us to live in the real world of daily commutes.
A "hidden" carbon cost of work from home is the necessity of a home office space, increasing the square footage and energy consumption of home-workers houses. Still better than driving 20+ miles a day, I think.
News Flash: people who are not capable of using the available modes of transportation are denied access to the things that transportation connects to. (Dateline: 3500BC)
If she's expecting to get to school across a river using a boat and she doesn't know how to sail, she shouldn't buy a sailboat.
If she's expecting to drive to school using a car and she can't drive stick, don't buy a stick.
If she's going to be touring foreign countries and expects to be asking directions along the way, make sure she can speak enough of the local languages.
So, she's expecting to get to school on the internet and she doesn't know how to use her computer???
All of these scenarios are solvable by acquiring the needed skill, or choosing a different mode of transport that you already know how to use.
In today's society, I'd say that Ubuntu is a rare language, but... if you or your local friends are literate enough to get your Ubuntu system onto the internet, there you should be able to find all the help you need> It might require a few more hours of work than Windows, or a few less, depending on the problems you encounter and your luck in finding their solutions.
Of course, if you are the problem that needs to be solved, nothing is really going to help until you learn to help yourself. I hope we're not giving college credits to people who are incapable of figuring out how to get themselves to class?
Re:Large uptick in Qt usage?
on
Qt Becomes LGPL
·
· Score: 1
Our problem came (comes) at deployment time onto systems that don't have the developer libraries installed.
Florida Power & Light has offered "load balancing" boxes for decades, they switch off things like Air Conditioning under peak load conditions. My grandfather had one, they gave him $7 a month off his bill and he was happy, said it almost never did anything.
Easy, just standardize every major appliance in the country to use the design - then rewire every house to support the functions. Of course, there are some practical problems to be overcome.
BTW, X10 relay outlets reliability is shit, BTDT. Good idea, implementation is just too cheap.
Also, I don't think I want my oven "dithering" its temperature profile while I bake, I have enough problem getting consistent results without a casino oven in the loop.
I think I added the labs.trolltech.com RSS to my startup page shortly before after that happened, but after your post;-)
Keep up the good work! It really is like having extra staff compared to the "bad old days" when we'd have to keep up with shifting OS requirements on our own.
It works, your plan falls flat if you have to pay technically competent people to implement it. The current system is highly idiot resistant, it took decades of engineering and experience to get here.
Just picture how big and expensive the cloud of smoke will be when somebody does something wrong.
Only half of his nose... your server draws a certain number of watts, if you are feeding it 240VAC, it will take 1/2 as many amps as 120VAC (assuming equal efficiency at both voltages, I believe 240VAC-DC conversions are typically marginally more efficient than 120VAC-DC)
P=I^2*R, power loss in your building wiring is based on the resistance of the wiring multiplied by current squared, so dropping current by half will drop your wiring related losses by a factor of 4. Since wiring power loss isn't much of a big deal, a better way you can capitalize on this advantage is by safely dropping your wire diameter by half (to 0.25x cross section) for the same heat/fire potential.
Of course, your boss will fire you when he plugs in a 120VAC coffee pot and it explodes in his face.
Re:It's good news, but is it too late?
on
Qt Becomes LGPL
·
· Score: 1
You are right that Qt uses very umm... baroque C++, but the fact is that it is a very good toolkit, the best opensource one out there
I dare say it's the best UI (and general multipurpose) C++ toolkit out there, period.... Even if you aren't doing cross-platform development, but, say, sticking to Windows, Qt is still the best choice; though commercial Windows developers might still want to pay to get VS integration.
I totally agree, and paying to get access to the Visual Studio debugger is also a net-gain.
Re:It's good news, but is it too late?
on
Qt Becomes LGPL
·
· Score: 1
I'd say Qt was the first, and they currently are the best at cross platform.
Slashdot Mirror
15 years of experience in a highly specialized field is a liability when seeking a new job. BTDT.
A few years in Gitmo and you'll tell them whatever they want to hear... doesn't matter what was or wasn't stored on that drive anyway.
Maybe if we just subject the hard drive to waterboarding, it'll reveal the data?
When the CinC gives an order to do "whatever it takes" to get the information he's after....
These were field deployed systems, no backups (they were heavy enough as it was, and in-home networking at the time consisted of 14.4Kbps modems).
In the NIH case it was more a matter of not wanting to deal with the question of whether data was potentially corrupted or biased by the recovery process - easier to just acknowledge loss of a small percentage of the data and move on. They had thousands upon thousands of hours of recordings that were all similar. If an event of special interest had happened on a corrupted drive they might have tried harder, but only 3 or 4 events of special interest happened in the whole study - drives weren't corrupted in those cases.
Hey, isn't this how "vertical" recording works? Not really, but your point is good for modern drives. Old floppies might have been inefficient enough that you could do this kind of recovery, but a modern Terabyte drive is so dense, you'd have to have next decade's technology to attempt a recovery.
I thought this would be fairly obvious from the fact there doesn't exist any recovery services that will recover zerod out data for you, at most they can usually try to recover data that has been deleted(forgotten) by the operating system.
We provided hardware for a NIH funded study once, they would occasionally mung up a removable hard drive by pulling it out while running. They were aghast at how easily they had lost their "valuable" data and insisted that we recover it for them, which we offered to do for a reasonable (like $20/hr) rate. After a few estimates of what it would cost to attempt to reconstruct the drive beyond a standard Norton disk repair, they opted to just write it off rather than deal with potential data integrity issues.
If the data had been GPS coordinates of Iraqui WMD, I suspect they would have wanted to try harder, but after a single wipe it becomes REALLY expensive to reconstruct the data.
That's what they WANT you to think.
In all seriousness. If the government wants to get information, they are not going to the trouble of an electron microscope to look at your hard drive. I'm sure they have other methods of extracting the information they want. While this information (about how many wipes you need) is interesting from a theoretical point of view, it is useless from a practical one.
A few years in Gitmo and you'll tell them whatever they want to hear... doesn't matter what was or wasn't stored on that drive anyway.
I thought a few weeks ago we were supposed to drill holes in the drive platters and fill the case with thermite, then drop the whole computer into the fires of mount doom.
This week, a one pass wipe is enough.
Depends on who you've pissed off.
Does the $300 keyboard have more than an expensive placebo effect?
Oh, socially speaking, work from home is still 99% taboo. I think many of the people who are getting to work from home these days are the ones whose managers feel the office would be better off without, but are still unable to fire for some reason. At least that's what I've seen in the places I have worked and the people I know who do work from home.
Sure, there are lots of people who brag about doing it, mostly web journalists, but 1% of 100 million is still 1 million - plenty to make noise about "I'm doing it!", leaving the other 99 million of us to live in the real world of daily commutes.
A "hidden" carbon cost of work from home is the necessity of a home office space, increasing the square footage and energy consumption of home-workers houses. Still better than driving 20+ miles a day, I think.
News Flash: people who are not capable of using the available modes of transportation are denied access to the things that transportation connects to. (Dateline: 3500BC)
If she's expecting to get to school across a river using a boat and she doesn't know how to sail, she shouldn't buy a sailboat.
If she's expecting to drive to school using a car and she can't drive stick, don't buy a stick.
If she's going to be touring foreign countries and expects to be asking directions along the way, make sure she can speak enough of the local languages.
So, she's expecting to get to school on the internet and she doesn't know how to use her computer???
All of these scenarios are solvable by acquiring the needed skill, or choosing a different mode of transport that you already know how to use.
In today's society, I'd say that Ubuntu is a rare language, but... if you or your local friends are literate enough to get your Ubuntu system onto the internet, there you should be able to find all the help you need> It might require a few more hours of work than Windows, or a few less, depending on the problems you encounter and your luck in finding their solutions.
Of course, if you are the problem that needs to be solved, nothing is really going to help until you learn to help yourself. I hope we're not giving college credits to people who are incapable of figuring out how to get themselves to class?
Our problem came (comes) at deployment time onto systems that don't have the developer libraries installed.
Florida Power & Light has offered "load balancing" boxes for decades, they switch off things like Air Conditioning under peak load conditions. My grandfather had one, they gave him $7 a month off his bill and he was happy, said it almost never did anything.
I'd like a 240V 50A capable USB standard. I don't think I want to wait for my water to heat or clothes to dry on standard USB power levels.
Easy, just standardize every major appliance in the country to use the design - then rewire every house to support the functions. Of course, there are some practical problems to be overcome.
BTW, X10 relay outlets reliability is shit, BTDT. Good idea, implementation is just too cheap.
Also, I don't think I want my oven "dithering" its temperature profile while I bake, I have enough problem getting consistent results without a casino oven in the loop.
Fun small world :)
mem mapping was a feature I added to Qt 4.4. I even wrote a blog entry on it on labs.trolltech.com
http://labs.trolltech.com/blogs/2007/10/15/file-mapping/
I think I added the labs.trolltech.com RSS to my startup page shortly before after that happened, but after your post ;-)
Keep up the good work! It really is like having extra staff compared to the "bad old days" when we'd have to keep up with shifting OS requirements on our own.
True, but then there's no punny punchline.
I like the PicoPSU - DC in, all you need out the connector. Hook up to a car battery and go.
It works, your plan falls flat if you have to pay technically competent people to implement it. The current system is highly idiot resistant, it took decades of engineering and experience to get here.
Just picture how big and expensive the cloud of smoke will be when somebody does something wrong.
rolls over in his grave.
If that's because of DC, does it mean he's fitted with a brushless commutator?
I think he only rolls over once, 180 degree displacement, no commutator required.
Of course, he meant an ultra-sonic screwdriver.
Doesn't everyone know that an ultra-sonic blast will depolarize blood?
Hey, which is more painful, a shock by airplane current or household current?
Airplane current, of course, it's got 340 more hurtz.
The times, they are a changin'
Seriously, after 100 years you might expect technology to switch a few things up.
Only half of his nose... your server draws a certain number of watts, if you are feeding it 240VAC, it will take 1/2 as many amps as 120VAC (assuming equal efficiency at both voltages, I believe 240VAC-DC conversions are typically marginally more efficient than 120VAC-DC)
P=I^2*R, power loss in your building wiring is based on the resistance of the wiring multiplied by current squared, so dropping current by half will drop your wiring related losses by a factor of 4. Since wiring power loss isn't much of a big deal, a better way you can capitalize on this advantage is by safely dropping your wire diameter by half (to 0.25x cross section) for the same heat/fire potential.
Of course, your boss will fire you when he plugs in a 120VAC coffee pot and it explodes in his face.
I dare say it's the best UI (and general multipurpose) C++ toolkit out there, period. ... Even if you aren't doing cross-platform development, but, say, sticking to Windows, Qt is still the best choice; though commercial Windows developers might still want to pay to get VS integration.
I totally agree, and paying to get access to the Visual Studio debugger is also a net-gain.
I'd say Qt was the first, and they currently are the best at cross platform.
Unless you don't mind Java's performance.