I would imagine that the system probably boots itself off of a ROM chip that has a routine for receiving data from Earth and storing it in RAM and then flashing that data onto the flash chip.
I wonder if the ROM would actually be a floating gate ROM instead of mask ROM or fuse based PROM in which case it would be more like EPROM or NOR Flash.
Does anybody even make mask ROM or fuse based PROM any more?
ECC use is standard with all flash storage. Flash is so unreliable that it can't be used without it, and it has nothing to do with the hard radiation environment on Mars.
NOR Flash does not normally use ECC and has reliability closer to that of EEPROM than NAND Flash.
The long duration radiation performance of flash memory (particularly back in 2000, when these things were being designed) was/is not particularly well understood.
Flash is another form of floating gate memory. Wouldn't the known long duration performance of EPROM and EEPROM apply?
Get a couple of subscriptions to astronomy magazines like Sky and Telescope and Astronomy. Reading a few issues will give you a better idea of what you want and what is available.
That strategy ceased to be effective at 9:03AM on 9/11/2001 over a field in Shanksville, PA. And you know who figured that out? Ordinary Americans, doing the security calculus themselves, where the government had completely failed to protect them, despite having many opportunities to do so.
And not only did the government fail to protect them and others, it did so while enforcing policies to prevent them from protecting themselves and others.
I think they got the government they deserve and continue to do so.
Praising the actions of citizens acting as a traditional militia goes against the whole idea of them being forced to pay for their own subjugation. That is especially the case since those citizens acting as a militia were the only thing that worked to stop any of the four planes despite having been disarmed for their own good.
There is no such thing as negative energy price, unless you're retarded? Why would you pay someone to take your excess energy, when you can just dump it into the atmosphere through a resistor heating element? They are not that expensive, even if you have to finance one. Of course you might be benevolent and give it away for free, or even exert some effort out of love to they neighbor, and pay some for him to take it, but in a selfish capitalist view you can get rid of energy very easily, it's not like trash that is costly to get rid of.
Because of political rents.
If wind production is subsidized, then I may make money by paying someone to take electricity and power a giant electric heater with it. Even if I lost money by doing this, I might loose less money than if I did not sell the power at all. That may sound ridiculous but it happened not long ago in Texas because of wind power subsidies.
I once worked for an engineer who previously had a physicist working for him. The physicist couldn't understand why a couple of 6-volt lantern batteries in series wouldn't start his car - after all, they were putting out 12 volts.
An explanation geared for a physicist would have helped. "Imagine a spherical frictionless 12 volt potential source in free space with a 1 ohm resistor in series with it..."
Driverless cars will probably be mandatory in the future, and my guess is that the insurance will become so prohibitively high, that you'll find it much cheaper to buy an automated car.
Manual control of a powered vehicle will be an organ bank crime. Obscure?
You can argue that the justice system might have an axe to grind against pedo's, and you're probably right, but they're still afforded due process.
But if this is not a search for purposes of the 4th Amendment, then the NSA or FBI or whoever can just provide a list of things for service providers to search for in general. Why limit it to child pornography?
And isn't that one of the current proposals to make current government searches legal in light of Snowden's leaks?
If the people are dangerous and they find out they can't fly (which could really only be because they were on the No Fly list) then wouldn't that make them more likely to do something.
No, because they know that if they do something, they will be put on the No Fly list twice.
You don't need a recent Tektronix for that. As a matter of fact, I have a Tek 547 with a full suite of plug-ins. Does everything I need, and will probably continue to do so even after I'm dead. The scope's already half a century old, the original owner died 20 years ago.
A Tektronix 547 does more than most need and some things modern DSOs cannot like alternate sweep. My solution for that was to buy two of the same DSO.
I don't design and build my own brushless motor controller for example. What the hell for?
Oddly enough, Tektronix did design and build their own brushless motor controllers for maybe 2 decades.
Differential amp with mV sensitivity but with hundreds of volts of common mode range? Yeah, and? Who cares?
These are handy for offline switching power supplies and high power audio amplifiers.
DC-50MHz current probe? Again, who cares? If you're that determined to get a current waveform, design your board with a current to voltage chip. You know, those systems on a chip? Then use a ADC and pump the data out to a PC.
These is also handy for switching power supplies and it is not always convenient to design in a ground referenced current output.
Analog? You mean a code word for "thinks he's saving money but is actually wasting time"?
I do not know why they even train analog engineers anymore.
Even if there were suitable locations for these which are not already developed, the Greens will stomp them out of existence like they have nuclear power plants.
Fuck, if this was 1930, we would be doing it all ready. Now everyone is a whiny ass afraid of big projects. The bests roads, best education system, best space agency, tallest buildings, longest bridges all see to be in the US, but apparently everyone has given up and have no problems watching out civilization built into straw start to blow away. At least billionaires get to keep more billions and suck money out of the system; which is what kills the middle class..
So what happens when solar power makes baseload power uneconomical and those plants which stabilize the grid are shut down? In effect, existing baseload power plants are subsidizing solar and wind just by existing.
I have worked on plenty of continuously powered instrumentation and test gear older than that which never displayed the problem you describe with the copper itself disintegrating although insulation often becomes brittle or fails in other ways. What I would believe though is that the decaying insulation outgassed something which attacked the copper and I have seen that happen even on insulated wire newer than World War 2. With insulation which does this, higher temperature operation accelerates the process.
Do SD cards implement background scrubbing? Using NAND Flash as a replacement for NOR Flash always strikes me as unreliable given the short storage time of high density NAND memory. I have already seen older consumer devices that use high density NAND Flash for firmware storage "self brick" after a period of time and I suspect this is what caused it.
If Obama's actual position is not to support the bill, he may do so anyway for good publicity if he knows it will not pass anyway. The two parties do this all the time in the House and Senate when it is known that a Bill will not pass but it is advantageous for some members to vote for it anyway.
It's tempting to imagine the internet as a giant blob of fungible bandwidth, but in reality it's just a big mess of cables some of which are higher capacity than others.
Wibbly Wobbly Timey Wimey... Stuff.
Just wait until it becomes more economical to sell IPv4 addresses via tunneling.
Back when I was in the process of switching providers, I bought a subscription to a VPN service so I could have a secure connection and routable IP through public internet access points. Later one of the things I noticed with my new AT&T U-Verse service was that *all* access was faster in either latency or throughput using the VPN to tunnel through U-Verse to half way across the US including things like DNS. Some things were a little bit faster and some things were an order of magnitude faster.
Slashdot Mirror
Isn't the BeagleBone Black even more open?
I wonder if the ROM would actually be a floating gate ROM instead of mask ROM or fuse based PROM in which case it would be more like EPROM or NOR Flash.
Does anybody even make mask ROM or fuse based PROM any more?
NOR Flash does not normally use ECC and has reliability closer to that of EEPROM than NAND Flash.
Flash is another form of floating gate memory. Wouldn't the known long duration performance of EPROM and EEPROM apply?
Get a couple of subscriptions to astronomy magazines like Sky and Telescope and Astronomy. Reading a few issues will give you a better idea of what you want and what is available.
That strategy ceased to be effective at 9:03AM on 9/11/2001 over a field in Shanksville, PA. And you know who figured that out? Ordinary Americans, doing the security calculus themselves, where the government had completely failed to protect them, despite having many opportunities to do so.
And not only did the government fail to protect them and others, it did so while enforcing policies to prevent them from protecting themselves and others.
I think they got the government they deserve and continue to do so.
Praising the actions of citizens acting as a traditional militia goes against the whole idea of them being forced to pay for their own subjugation. That is especially the case since those citizens acting as a militia were the only thing that worked to stop any of the four planes despite having been disarmed for their own good.
Because of political rents.
If wind production is subsidized, then I may make money by paying someone to take electricity and power a giant electric heater with it. Even if I lost money by doing this, I might loose less money than if I did not sell the power at all. That may sound ridiculous but it happened not long ago in Texas because of wind power subsidies.
An explanation geared for a physicist would have helped. "Imagine a spherical frictionless 12 volt potential source in free space with a 1 ohm resistor in series with it ..."
You'll have to pry my 2.147483648 Gb DRAMs from my cold, dead hands!
I wonder which of actively controlling the vehicle or maintaining enough situational awareness to do so would be more tiring.
Manual control of a powered vehicle will be an organ bank crime. Obscure?
But if this is not a search for purposes of the 4th Amendment, then the NSA or FBI or whoever can just provide a list of things for service providers to search for in general. Why limit it to child pornography?
And isn't that one of the current proposals to make current government searches legal in light of Snowden's leaks?
It certainly covers "We search your files based on a list of unlawful content given to use by the government."
I am sure there is something in their EULA which states that you surrender your 4th Amendment rights so it is all good.
No, because they know that if they do something, they will be put on the No Fly list twice.
For an older analog oscilloscope calibration is not difficult but for one that stores the calibration data digitally, calibration can be a problem.
Changing aluminum electrolytic capacitors is just another maintenance task for a test instrument old enough to need it.
A Tektronix 547 does more than most need and some things modern DSOs cannot like alternate sweep. My solution for that was to buy two of the same DSO.
Oddly enough, Tektronix did design and build their own brushless motor controllers for maybe 2 decades.
These are handy for offline switching power supplies and high power audio amplifiers.
These is also handy for switching power supplies and it is not always convenient to design in a ground referenced current output.
I do not know why they even train analog engineers anymore.
Even if there were suitable locations for these which are not already developed, the Greens will stomp them out of existence like they have nuclear power plants.
The rent seeking politicians and lawyers won.
So what happens when solar power makes baseload power uneconomical and those plants which stabilize the grid are shut down? In effect, existing baseload power plants are subsidizing solar and wind just by existing.
I have worked on plenty of continuously powered instrumentation and test gear older than that which never displayed the problem you describe with the copper itself disintegrating although insulation often becomes brittle or fails in other ways. What I would believe though is that the decaying insulation outgassed something which attacked the copper and I have seen that happen even on insulated wire newer than World War 2. With insulation which does this, higher temperature operation accelerates the process.
Do SD cards implement background scrubbing? Using NAND Flash as a replacement for NOR Flash always strikes me as unreliable given the short storage time of high density NAND memory. I have already seen older consumer devices that use high density NAND Flash for firmware storage "self brick" after a period of time and I suspect this is what caused it.
If Obama's actual position is not to support the bill, he may do so anyway for good publicity if he knows it will not pass anyway. The two parties do this all the time in the House and Senate when it is known that a Bill will not pass but it is advantageous for some members to vote for it anyway.
Wibbly Wobbly Timey Wimey ... Stuff.
Just wait until it becomes more economical to sell IPv4 addresses via tunneling.
Back when I was in the process of switching providers, I bought a subscription to a VPN service so I could have a secure connection and routable IP through public internet access points. Later one of the things I noticed with my new AT&T U-Verse service was that *all* access was faster in either latency or throughput using the VPN to tunnel through U-Verse to half way across the US including things like DNS. Some things were a little bit faster and some things were an order of magnitude faster.