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User: atamido

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  1. Re:closer to what i'd like in car electronics on GM Unveils Networked Electric Mini Cars · · Score: 1

    so the only issue is trusting the signal.

    Which you should never do. When you are being moved about by a ton of equipment at high speeds completely out of your control, why on Earth would you implicitly trust navigation information from millions of other people?

    That'd be like surfing the internet with Windows 98 and IE 5.5 because, you know, the justice system would be sure to prosecute malicious rogue operators.

  2. Re:Why? on GM Unveils Networked Electric Mini Cars · · Score: 1

    Besides ... anti-lock brakes were not designed to stop a car faster .. they help the moron driver maintain control.

    This is not, strictly speaking, correct. Anti-lock brake systems were (and can still be) pretty dumb, essentially just cycling the brakes on and off. This actually works pretty well for icy situations where it emulates the pump-the-brake method of stopping, only much faster than a human.

    A more moderns system can monitor the speed of all four wheels independently, detect when a single wheel exceeds static friction, independently adjust brake pressure on all four wheels, calculate maximum effective braking pressure given speed/vehicle weight (possibly adjustable for load with sensors)/recent wheel statistics/road smoothness (available on some cars via RADAR), test braking pressures, adjust, and repeat.

    For simple breaking in a strait line, there is simply no way that a flesh bag of any caliber is going to be able to compete.

  3. Re:Best SSID on Auto-Scanning the Names People Choose For Their Wireless APs · · Score: 1

    I'd say 4% is in the "Wow, that's low" category for those speeds.

  4. Re:Best SSID on Auto-Scanning the Names People Choose For Their Wireless APs · · Score: 1

    Fun fact: My cheap $20 5 port gigabit consumer switch can push over 400Mbps copying files on a Windows SMB share between two desktops with onboard NICs and whatever random hard drives. When it comes right down to it, it's usually okay to pay 10% of the price for 90% of the performance that you're likely to be able to use.

  5. Re:I dont use... on What Free Antivirus Do You Install On Windows? · · Score: 1

    I use a series of Firefox Add-ons to reduce my risk. QuickJava lets me leave the Java and Silverlight plugins disabled by default. If I encounter a site where I need one, I'll enable them temporarily for that site, but it's pretty rare. Flashblock replaces all Flash objects with a play button, which lets me selectively enable applets. (Flashblock can be altered to do the same for Quicktime and other plugins, so I have taken advantage of this). PDF Download asks me to download PDF files instead of automatically running Adobe Reader. Adblock takes care the the miscellaneous bits.

    If you really wanted to, you could browse with NoScript and be perfectly safe, but I've found that to be a pain.

    For me, not even plugins are a good attack vector.

  6. Re:I dont use... on What Free Antivirus Do You Install On Windows? · · Score: 1

    Basically I'm not going to get a virus, so I see no reason to run anti-virus software. Rather than "Can't be 100% safe, may as well not use it", my reasoning is "I'm already 99.99999% safe, so why bother".

    (Yes, I know it's still technically possible to get a virus. But the chances are extremely slim, given the way I use my computer.)

    This was basically my thinking. I used antivirus for years and never ran into viruses. (I once had a file that was obviously a virus and, in a fit of sleepiness, hit enter instead of delete on the file, infecting myself. The installed Norton Antivirus did nothing and was quickly disabled by the virus.) Without antivirus my computer is more responsive and I'm at essentially the same chance of infection as I was before. If I run across a file that is suspect, there are numerous websites that allow files to be uploaded for scanning.

    That being said, I recently installed Microsoft Security Essentials on my inlaw's PC and was impressed by how little overhead it seemed to have. I may install it on my PC on the off chance that someone else using my system downloads something that escalates privileges.

  7. Re:Canada on T-Mobile's First HSPA+ Modem Goes On Sale Sunday · · Score: 2, Insightful

    Turns out Canada had this amazing system called interact that would let you swipe your credit card just like you were at an atm. It was everywhere.

    I got my first Visa check card in late 1997, in the USA, and I knew many people that had one way before me. After that, I don't recall ever using cash outside of fast food places. Perhaps where you lived was just behind the times?

  8. Re:I hope on Valve Announces Portal 2 · · Score: 1

    Well, not necessarily a retrofit of the original episodes. But IIRC, the plan has always been to integrate the portal gun into the Half-Life story line.

  9. Re:I hope on Valve Announces Portal 2 · · Score: 1

    the portal gun really can't work in HL2

    You really need to see this.
    http://www.youtube.com/watch?v=gKg3TUPQ8Sg

  10. Re:Never understood this game on Valve Announces Portal 2 · · Score: 1

    Maybe I'm a simpleton, or I don't play enough games, but the game felt pretty innovative to me. I thought the user created portals were a completely new take on puzzle mechanics.

    I always figured the $20 was due to the game's short length, and that management figured it would have a relatively small field of appeal.

  11. Re:In other words... on Microsoft Spends $9 Billion On Research, Focuses On Cloud · · Score: 1

    It seems like the limiting factor is the five year old hard drives. I'm not sure if perspective is changing, or if drives actually get slower over time. But the easiest upgrade for any old system that has 2GB of RAM already is to replace the hard drive with a newer one. I think a 5 year old system would run Windows 7 (with Aero turned off fine), as long as you have 2GB of RAM and a new drive.

    As far as Citrix, Citrix costs money. It also adds an extra layer of things to go wrong. Citrix feels like the beta version with all of the cool features, and all of the random issues. TS is always a few years behind on features, but the features work more predictably. (Speaking as one who administers a small Citrix farm.)

  12. Re:Healthcare on Vivek Kundra On US Government Inefficiency · · Score: 1

    The fact is that Medicare and Medicaid are some of the most efficiently-run medical insurance programs in the country, with a higher percent spent on actual care than any private insurance company.

    That's like being declared king of the retards*. US healthcare is the worst care/$ in the world. Being better than everyone else here is just not that impressive.

    * Please forgive the insensitivity of the phrase as it makes the point well.

  13. Re:Nailed it. on Vivek Kundra On US Government Inefficiency · · Score: 1

    Each department would most certainly like to improve efficiencies by streamlining the workflow with IT.

    In my own limited experience, this is wrong. Most departments are don't want to change because they have no motivation to improve things, and they fear the things that change brings (managers lose underlings, managers get downsized from consolidation, or managers are revealed to not know anything about their department).

    A few departments really want to improve things, which requires an investment of new technology. Unfortunately when they bring this up with their managers, their managers point to all of the other departments that seem to be operating just fine without some huge investment.

    With government, it requires someone at a certain level that can say, "this process ridiculous, and is wasting tons of money; so we will invest now to save money tomorrow."

    It also requires that same person high up to make it clear that the sudden infusion of money is not to be used to simply hire more people into the same ridiculous process, or buy new desks for all of the managers. From what I've seen, when a department does finally get a bunch of cash, about 40% of it is spent on new desks and flat panel TVs on the walls so that the offices look nicer. Then another 40% is spent to hire more personnel, even though it's not in the next year's budget, and is completely against the end goal (once the people are hired, it is easier to ask for more money because you have a larger department, and nobody wants to fire people). Finally, 10% is set aside for actual upgrades, which turns out not to be enough for more than superficial upgrades.

  14. Re:Well, what a surprise on Ubisoft's New DRM Cracked In One Day · · Score: 1

    That's only true if you agreed to an EULA that specifies such. Or opened a box that contained such an EULA inside. Or talked to someone that once used the EULA to eat donuts off of. Otherwise, you should be fine.

  15. Re:Absorbed not necessarily equal to electricity on Caltech Makes Flexible, 86% Efficient Solar Arrays · · Score: 1

    Electrical efficiency of most things seems to decrease as heat increases. As these use nano wires, I'd suspect the effect is even worse. Unfortunately most general applications of solar panels aren't ideal for running water through them, so some try different approaches of bypassing or reflecting ranges of light that aren't absorbed well. As this panel seems to work by absorbing as much light as possible, that's not much of an option.

    Of course, if the panel turns out to be 1/50th the cost (2%) of normal panels, then who cares. Cover your roof with them now, and then start thinking about cooling techniques.

  16. Re:I think its entirely reasonable to say... on Caltech Makes Flexible, 86% Efficient Solar Arrays · · Score: 1

    Turns out the only benefits to this are the flexibility and low cost (which are good, sure, but not that exciting).

    Actually, low cost is far more exciting than high efficiency. Low cost means it'll be used. A lot. High efficiency plus expensive just means we have a better grade of "no, we can't afford that right now"....

    No kidding. I almost slapped my forehead at the "low cost solar panels aren't exciting" comment. Solar panels are so ridiculously expensive that you'd be lucky to get a return on your investment in 10 years, and that's with government subsidies.

    I was looking for a solar powered exhaust fan for my attic, which is about the simplest solar device you can make (sun hits roof, fan spins). But it was cheaper to buy a fan hooked to the power and let it run for 10 years. Adding a timer would have made it even worse.

  17. Re:"Movie-Quality" on Real-Time, Movie-Quality CGI For Games · · Score: 1

    The frames were also rendered at "a resolution of 1536 by 922 with an effective 48 bits per pixel." So increasing that to 1920x1080 would be a 47% increase in the number of pixels.

  18. Re:How hard can it be? on "Limited Edition" SSD Has Fastest Storage Speed · · Score: 1

    I said "FusionIO type cards". IE, an SSD integrated directly onto a PCIe card. It doesn't need to be insanely fast and expensive, or developed by FusionIO.

  19. Re:Marketspeak, or as normal people call it: lies. on "Limited Edition" SSD Has Fastest Storage Speed · · Score: 2, Informative

    The predominant failure mode for flash is erase cycle endurance exhaustion, upon which time the flash reverts to being read-only. Compared to a HDD the flash failure mode is hugely desirable.

    At my company a few years ago we purchased two OCZ SSD drives (using the now infamous JMicron controllers). They were for two identical systems, but we kept having problems with the first one we were setting up (using Linux). Everything would seem fine at first, but the system would start crashing and become unbootable within hours. We formatted and started over a couple of times replacing various pieces of hardware. Eventually we narrowed it down to the SSD by using a command (I forget the command used in Linux) to fill the drive with specified patterns of bits and then read back the data to see if it is correct. There was a patch where every other bit would not flip from 0 to 1. Of course, due to wear leveling the location of the patch would move around for each test, but it was easily reproducible in size. The drive was silently failing on write, producing random garbage. OCZ ended up replacing the drive, but we ended up not using them due to other performance issues. (OCZ has hidden the relevant threads on their forums since then.)

    Anyway, that's my anecdote for the day.

  20. Re:How hard can it be? on "Limited Edition" SSD Has Fastest Storage Speed · · Score: 1

    Everything you address is fixed at the end of this year with a firmware upgrade.

    Funny, they've been saying that exact thing for the past two years. Fortunately this time we can trust them. You know, because the year ends in a zero.

  21. Re:How hard can it be? on "Limited Edition" SSD Has Fastest Storage Speed · · Score: 1

    When do you see the introduction of bootable PCIe FusionIO type cards for the consumer?

  22. Re:My research on Researchers Say Women Secretly Desire Hairy Geeks · · Score: 2, Funny

    It's based on a poll, which would assume that women know what they want. This is not a good assumption.

    If there has ever been proof that Slashdot needs a special >5 score, it is this statement.

  23. Re:The casualties of the battle are ... on Valve's Battle Against Cheaters · · Score: 1

    We know how likely an md5 hash collision is with hack X and legitimate program Y. Not very. With an increasing number of wallhacks and legitimate programs, we will see hash collisions sooner or later

    The hash space is large enough that you will never see an accidental collision. It's the on purpose collision you have to worry about. What happens when someone creates a hack binary with an identical hash to the game.exe? Company accidentally flags all users with the legitimate file?

  24. Re:Reputation systems to the rescue on Valve's Battle Against Cheaters · · Score: 1

    No need to use actual rankings, just use like/dislike relationships. Online radio stations use it to predict if you will like new music. You mark people you like and dislike. The system finds other people with similar tastes and uses their result to create a list of other people you might like to play with. Then, if the data shows that the other person likes to play with people like you, you get matched up.

    This resolves "negative reviews" because there isn't any sort of negative karma. You simply won't be matched up with people like the ones that gave you negative reviews.

  25. Re:Reputation systems to the rescue on Valve's Battle Against Cheaters · · Score: 1

    There are a class of problems that can most easily be solved by fundamental changes in human behaviour. This will never happen, unfortunately.

    Last weekend I was playing Left 4 Dead 2 online with random strangers. We'd completed one portion, and were getting weapons and healing ourselves to go through the final section. All of a sudden one of the players starts shooting another one, causing damage he wouldn't be able to repair before the final attempt. We all asked why he was doing that, and his answer was, "I have to leave now, so why not." There is something seriously wrong with people.

    If I had a button on my keyboard that could have delivered a swift kick to the groin to anyone I wanted on the internet, I think would have used it.

    I would like a reputation/matching system though for these games, similar to how music stations can predict if you will like a new piece of music. Just some way to say, "I like playing with this guy, but I don't like playing with that other guy." Then other people that liked/disliked some the same players could be used as a reference point for other people I might like to play with. I can't imagine it would be difficult to do.