The DRAM sticks in a PC have nothing to do with the SRAM in a tablet. The SRAM idle power consumption is almost purely leakage, and will be proportional to the number of gates - thus doubling capacity will double power consumption. Active power is unlikely to be significantly affected by doubling the memory, however.
As far as faster CPUs, even on the same process a CPU is synthesized for a target speed. If you want a slower CPU, the synthesis creates smaller (lower-power) transistors, and uses fewer buffers and/or synchronization stages. If you run a CPU synthesized to run at 2GHz at a 1 GHz clock rate, it'll take significantly more power than the same CPU, in the same process, synthesized to run at 1 GHz with a 1 GHz clock rate. At idle, the CPU synthesized for the higher clock rate will have higher leakage.
Are you next going to tell me that I shouldn't listen to music encoded to MP3 because only the hearing impaired could possibly have an excuse for doing so? Going to tell me what lube I should use when I masturbate because everything else is beneath contempt?
I, of course, am typing this on my 1080p 32" LG Television that I use daily attached to my laptop. And I am neither color blind, nor do I have Retinitis Pigmentosa. This is the fourth TV I've used as a monitor, and the only issue I've noted over time is being able to disable the image enhancements that TV's love to include. The last three TV's I've used I've been able to successfully do so, so it may simply not be an important issue anymore.
So you're OK with apps driving your phone into a low battery condition, as long as they stop doing so once the battery gets low?
WTF is the Uber app doing that needs battery, anyway? If I'm not actively waiting for a ride (where it might want to be updating me on ETA), it shouldn't be doing anything.
Remarkably, no airplane made the list. If there's one thing that's made the world smaller and influenced everyone's life, it's been cheap air travel. I'm guessing they put this list together in 45 minutes one day after drinking at lunch.
As much as I admire the quality and intentions of the iPhone, I don't see it as being that important. People were texting, calling, and (gasp!) yes, even browsing the web before an iPhone ever showed up. The locked-in experience of the time was vastly inferior to what the iPhone brought to the game, which is of course the main reason that it did so well. But, without the iPhone, the smartphone market would still have developed, and people still would be carrying tiny but powerful little computers in their pockets.
Matsumoto's paper has been on my hard drive for five years now. You seem to be under the mistaken impression that "all fingerprint sensors are the same".
I've built fingerprint spoofs from gelatin, graphite coated gelatin, wood glue, laser printers, silicone rubber, etc. I've collected latent prints for this work, as well as cooperative prints ("Is it OK if I pour this liquid silicone over your finger to collect your print?") I've done statistically significant measurements of the likelihood of success of breaking into systems with those spoofs. I can truthfully say that I know a great deal more about this than you.
I've given a specific set of hardware, and a specific incentive, for you to back up your claims. Note that I don't claim that ALL fingerprint sensors are difficult to break into - I could give you a list of the easiest ones. In that regard, you are correct. However, there are some manufacturers (of both fingerprint sensors and laptops) who do care about security, and shouldn't be painted with the same sloppy brush.
If you watch the CCC video of breaking into the iPhone, you'll notice a pristine front cover glass, with a very carefully placed fingerprint. And they're experts at this.
So, I issue a personal challenge. I will pay you $500, in cash, if you build me a fingerprint spoof made from a latent print that will break into a 2013-2015 HP Enterprise laptop. As part of the deal, I will require that you log the hours you spent, the money you spent, and all the attempts you made, to fulfill this requirement.
If your knowledge of this area is gained from Mythbusters, you are sadly behind the curve. I will admit, however, that the fact that I have to call out a specific class of machines from a specific manufacturer to issue a challenge is a sad statement on the state of affairs of fingerprint anti-spoof technology.
Let me know if you wish to take me up on this offer.
They got a warrant. None of my other "persons, houses, papers, and effects" are secure against a warrant, so why should my phone be?
You may not think that there are other situations where the State could require my cooperation to investigate my alleged crimes, and yet those situations exist commonly. Fingerprints or DNA, for example, are coerced confessions from my body to be used by the state against me - and there's a long history (sometimes sordid) of their acceptance and use. They are coerced cooperation - try not giving fingerprints or DNA and see how far you get.
The only significant issue I see is that the coerced cooperation required to open my phone, opens a huge window into my private business that doesn't have much of a parallel pre-cellphone. But that isn't much different than a search warrant for my house - the warrant must be specific, but that doesn't mean that the police who search my house won't investigate every document, container, and closet that may (or may not) be covered by the warrant.
As long as you can build a patch cable from an RJ-45 to the new connector, you'd be compatible enough with installed infrastructure.
Require that every cable be a right-angle, 90 degree cable - i.e. when plugged into something like a flat laptop or tablet, the cable lies flat against the side of the device when plugged in, not sticking awkardly straight out the back. My laptop dock can't get closer than 7-10 cm from the back wall of my cube because of the old-style cables (RJ-45, HDMI, USB) sticking out.
And those who want to stay on 2.6 are welcome to, and if there's a big enough community they could even conceivably manage to make changes/apply fixes on their own.
Try applying a Windows 7 security fix to Windows XP. Good luck with that.
I'm a really good engineer. Math and practical computer science comes easily to me, as do many of the word arts. But I spent years trying to gain proficiency at several different musical instruments (and by proficiency, I mean playing recognizable melodies at reasonably consistent tempos, not even necessarily reaching the level of "bad bar band") , and never could. My brain was incapable of it. Physical Chemistry in college was another killer for me - I got my D and was ecstatic.
Algebra seems to be that breaking point for a percentage of the population - they can be reasonably successful at math up to this point, but fail utterly here despite working hard to understand. Should they be relegated to "High School Dropout" as a result?
Bit-banging a USB interface is about as smart as bit-banging an Ethernet interface. Sorry, but both were architected to be implemented in hardware. Once you accept that, both are perfectly fine hobbyist interfaces.
If you choose a micro without the requisite hardware support, your life will be very, very difficult.
Kill the penny. Kill the Nickel. Keep the dime - the smallest coin will now have the smallest value. Kill the quarter Create a new $0.50 piece a bit bigger than a dime, maybe a bit smaller than a penny. Create a new $1.00 piece about the size of a nickel, maybe slightly larger. Create a new $5.00 piece about the size of a quarter.
To avoid confusion between new/old, change something mechanical - put a hole through the middle, or make them all octagonal or decagonal.
If you're worried about cost, make the dime and half out of Aluminum. We've given up the concept of any actual value in our currency, so it's time to give up the artificial weight that made them feel like silver.
Don't try to differentiate them by color. As the Sacajawea dollar taught us, after a few years in grubby fingers and rattling around in pockets, all coins start to have the same surface color.
We end up with rationally sized coins, getting bigger as the value gets bigger. We get rid of the small valued paper money, which is also expensive to print/replace.
Well, the Bell System WAS a government created monopoly, which fought tooth and nail against every attempt to nibble away at any part of it. All the government had to do to dismantle it was to repeal the laws the prevented any competition.
Standard Oil, on the other hand, was a market created monopoly where the government had to take aggressive action to dismantle it.
Do you understand the difference between public key cryptography and symmetric key cryptography? Can you succinctly explain why comparing Diffie-Helman to AES is like comparing an apple to a metamorphic rock?
Answer those questions, my son, then feel free to come back and comment on matters of encryption. Until then, STFU.
So, to have an IOT thermostat I have to give it around 350 ma @ 5 v (over 1.5 watts) 24 hours a day, 7 days a week? That's roughly 13 kWh over the space of a year.
It must be nice to design devices where someone else has to pay for the sloppy engineering.
So is it OK if I drop by and hand you my Galaxy S6, and start a timer to see how long it takes you to break in? I'd guess 8-10 hours of solid work for you, someone who appears knowledgeable in this area. That qualifies at least as "very difficult" to me, though perhaps I overstated it with "extraordinarily difficult".
You seem quite knowledgeable, and I find no fault with your analysis and subsequent posts, other than the quibble with the level of effort needed.
Slashdot Mirror
The DRAM sticks in a PC have nothing to do with the SRAM in a tablet. The SRAM idle power consumption is almost purely leakage, and will be proportional to the number of gates - thus doubling capacity will double power consumption. Active power is unlikely to be significantly affected by doubling the memory, however.
As far as faster CPUs, even on the same process a CPU is synthesized for a target speed. If you want a slower CPU, the synthesis creates smaller (lower-power) transistors, and uses fewer buffers and/or synchronization stages. If you run a CPU synthesized to run at 2GHz at a 1 GHz clock rate, it'll take significantly more power than the same CPU, in the same process, synthesized to run at 1 GHz with a 1 GHz clock rate. At idle, the CPU synthesized for the higher clock rate will have higher leakage.
So, both of your statements are incorrect.
Good Lord! Elitist much?
Are you next going to tell me that I shouldn't listen to music encoded to MP3 because only the hearing impaired could possibly have an excuse for doing so? Going to tell me what lube I should use when I masturbate because everything else is beneath contempt?
I, of course, am typing this on my 1080p 32" LG Television that I use daily attached to my laptop. And I am neither color blind, nor do I have Retinitis Pigmentosa. This is the fourth TV I've used as a monitor, and the only issue I've noted over time is being able to disable the image enhancements that TV's love to include. The last three TV's I've used I've been able to successfully do so, so it may simply not be an important issue anymore.
So you're OK with apps driving your phone into a low battery condition, as long as they stop doing so once the battery gets low?
WTF is the Uber app doing that needs battery, anyway? If I'm not actively waiting for a ride (where it might want to be updating me on ETA), it shouldn't be doing anything.
Probiotics contain nothing that resembles fecal bacteria. If they did, they'd be immediately removed from the shelves.
Probiotics are mostly a way to seperate people from their money.
>> mass migrations of people to hotter climates, with an accompanying huge energy cost
I'll remember that next January while I'm watering the roses listening to the warnings of ice storms in the northeast.
-A Phoenician
Remarkably, no airplane made the list. If there's one thing that's made the world smaller and influenced everyone's life, it's been cheap air travel.
I'm guessing they put this list together in 45 minutes one day after drinking at lunch.
As much as I admire the quality and intentions of the iPhone, I don't see it as being that important. People were texting, calling, and (gasp!) yes, even browsing the web before an iPhone ever showed up. The locked-in experience of the time was vastly inferior to what the iPhone brought to the game, which is of course the main reason that it did so well. But, without the iPhone, the smartphone market would still have developed, and people still would be carrying tiny but powerful little computers in their pockets.
Matsumoto's paper has been on my hard drive for five years now. You seem to be under the mistaken impression that "all fingerprint sensors are the same".
I've built fingerprint spoofs from gelatin, graphite coated gelatin, wood glue, laser printers, silicone rubber, etc. I've collected latent prints for this work, as well as cooperative prints ("Is it OK if I pour this liquid silicone over your finger to collect your print?") I've done statistically significant measurements of the likelihood of success of breaking into systems with those spoofs. I can truthfully say that I know a great deal more about this than you.
I've given a specific set of hardware, and a specific incentive, for you to back up your claims. Note that I don't claim that ALL fingerprint sensors are difficult to break into - I could give you a list of the easiest ones. In that regard, you are correct. However, there are some manufacturers (of both fingerprint sensors and laptops) who do care about security, and shouldn't be painted with the same sloppy brush.
Ever tried it?
If you watch the CCC video of breaking into the iPhone, you'll notice a pristine front cover glass, with a very carefully placed fingerprint. And they're experts at this.
Give it a try sometime. It's quite educational.
Really?
So, I issue a personal challenge. I will pay you $500, in cash, if you build me a fingerprint spoof made from a latent print that will break into a 2013-2015 HP Enterprise laptop. As part of the deal, I will require that you log the hours you spent, the money you spent, and all the attempts you made, to fulfill this requirement.
If your knowledge of this area is gained from Mythbusters, you are sadly behind the curve. I will admit, however, that the fact that I have to call out a specific class of machines from a specific manufacturer to issue a challenge is a sad statement on the state of affairs of fingerprint anti-spoof technology.
Let me know if you wish to take me up on this offer.
They got a warrant. None of my other "persons, houses, papers, and effects" are secure against a warrant, so why should my phone be?
You may not think that there are other situations where the State could require my cooperation to investigate my alleged crimes, and yet those situations exist commonly. Fingerprints or DNA, for example, are coerced confessions from my body to be used by the state against me - and there's a long history (sometimes sordid) of their acceptance and use. They are coerced cooperation - try not giving fingerprints or DNA and see how far you get.
The only significant issue I see is that the coerced cooperation required to open my phone, opens a huge window into my private business that doesn't have much of a parallel pre-cellphone. But that isn't much different than a search warrant for my house - the warrant must be specific, but that doesn't mean that the police who search my house won't investigate every document, container, and closet that may (or may not) be covered by the warrant.
SpaceX Successfully Lands Its Rock On A Floating Drone Ship For The First Time
Its Rock?
I'd pay for that experience...
Arresting wire landing in a 737...
Catapult takeoff in a 737...
It'd be far more entertaining than the normal takeoff/landing.
As long as you can build a patch cable from an RJ-45 to the new connector, you'd be compatible enough with installed infrastructure.
Require that every cable be a right-angle, 90 degree cable - i.e. when plugged into something like a flat laptop or tablet, the cable lies flat against the side of the device when plugged in, not sticking awkardly straight out the back. My laptop dock can't get closer than 7-10 cm from the back wall of my cube because of the old-style cables (RJ-45, HDMI, USB) sticking out.
And those who want to stay on 2.6 are welcome to, and if there's a big enough community they could even conceivably manage to make changes/apply fixes on their own.
Try applying a Windows 7 security fix to Windows XP. Good luck with that.
This is the most cogent argument of the bunch.
I'm a really good engineer. Math and practical computer science comes easily to me, as do many of the word arts. But I spent years trying to gain proficiency at several different musical instruments (and by proficiency, I mean playing recognizable melodies at reasonably consistent tempos, not even necessarily reaching the level of "bad bar band") , and never could. My brain was incapable of it. Physical Chemistry in college was another killer for me - I got my D and was ecstatic.
Algebra seems to be that breaking point for a percentage of the population - they can be reasonably successful at math up to this point, but fail utterly here despite working hard to understand. Should they be relegated to "High School Dropout" as a result?
Bit-banging a USB interface is about as smart as bit-banging an Ethernet interface. Sorry, but both were architected to be implemented in hardware. Once you accept that, both are perfectly fine hobbyist interfaces.
If you choose a micro without the requisite hardware support, your life will be very, very difficult.
Kill the penny.
Kill the Nickel.
Keep the dime - the smallest coin will now have the smallest value.
Kill the quarter
Create a new $0.50 piece a bit bigger than a dime, maybe a bit smaller than a penny.
Create a new $1.00 piece about the size of a nickel, maybe slightly larger.
Create a new $5.00 piece about the size of a quarter.
To avoid confusion between new/old, change something mechanical - put a hole through the middle, or make them all octagonal or decagonal.
If you're worried about cost, make the dime and half out of Aluminum. We've given up the concept of any actual value in our currency, so it's time to give up the artificial weight that made them feel like silver.
Don't try to differentiate them by color. As the Sacajawea dollar taught us, after a few years in grubby fingers and rattling around in pockets, all coins start to have the same surface color.
We end up with rationally sized coins, getting bigger as the value gets bigger. We get rid of the small valued paper money, which is also expensive to print/replace.
Well, the Bell System WAS a government created monopoly, which fought tooth and nail against every attempt to nibble away at any part of it. All the government had to do to dismantle it was to repeal the laws the prevented any competition.
Standard Oil, on the other hand, was a market created monopoly where the government had to take aggressive action to dismantle it.
Sorry, this got posted as a child of the wrong parent. Please ignore.
Do you understand the difference between public key cryptography and symmetric key cryptography? Can you succinctly explain why comparing Diffie-Helman to AES is like comparing an apple to a metamorphic rock?
Answer those questions, my son, then feel free to come back and comment on matters of encryption. Until then, STFU.
So, to have an IOT thermostat I have to give it around 350 ma @ 5 v (over 1.5 watts) 24 hours a day, 7 days a week? That's roughly 13 kWh over the space of a year.
It must be nice to design devices where someone else has to pay for the sloppy engineering.
Even though it's in the original FA, I wouldn't expect a competent editor here to let "graphite atoms" by. Sheesh.
Fully agree - typing this on the 32" TV i use as a monitor.
So is it OK if I drop by and hand you my Galaxy S6, and start a timer to see how long it takes you to break in? I'd guess 8-10 hours of solid work for you, someone who appears knowledgeable in this area. That qualifies at least as "very difficult" to me, though perhaps I overstated it with "extraordinarily difficult".
You seem quite knowledgeable, and I find no fault with your analysis and subsequent posts, other than the quibble with the level of effort needed.