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User: guruevi

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  1. Re:50 ms? on Ask Slashdot: Low-Latency PS2/USB Gaming Keyboards? · · Score: 1

    500ms is when you process life threatening emergencies, when you have to process something innocuous from your peripheral vision while doing other tasks like driving in heavy traffic, you could be processing a second or longer.

  2. Re:You're testing wrong on Ask Slashdot: Low-Latency PS2/USB Gaming Keyboards? · · Score: 1

    Debounce doesn't add latency per se, you only have to trigger your interrupt on the first transition (given the transition is maintained long enough for the processor to pick up) and who cares if it bounces after that.

    Also, in psychophysics, most likely you already know when the decision is being made (either EEG or fMRI), the buttons and the display refresh signal are only there to confirm that you should select data in between those time stamps.

  3. You're testing wrong on Ask Slashdot: Low-Latency PS2/USB Gaming Keyboards? · · Score: 5, Interesting

    There is not a single modern keyboard that has 50ms latency. You (humans) have that sort of latency.

    As far as response times, all you need to do is increase the poll time on the USB stack, you should be able to set it to ~1-5ms, most keyboards are in the 5-10ms range. You can also get a custom keyboard which is used for psychophysics, they run about $300 and have a guaranteed sub-ms latency. But there must be some firmwares out there that can achieve the same for cheaper. I've tested Arduino Leonardo to about 1-2ms latency (also for psychophysics experiments).

  4. Stagnant because of monopoly on Maybe Steve Ballmer Doesn't Deserve the Hate · · Score: 1

    The only reason they've got any customers left is because of their monopolies. Their only customers are companies that don't know how to migrate away.
    - Their latest OS: Just a remake of the same-old, many people don't see the need to move from what they have (XP/7). They only sold a bunch of licenses because you can't buy 7/XP but you can use the license to downgrade.
    - Their latest Office: It moved to the *cloud* and thus everybody just stays on what they have currently. If they want to make the expense to move to an online platform, they might as well not spend money on it and use Google.
    - Their latest Exchange: Just a remake, nothing innovative or new. The only reason people stick to Exchange is because there is no way out. There are organizations that have attempted moving their stuff but Exchange simply doesn't cooperate. So maybe they move to Outlook.com but that's also running Exchange, so nothing changes.
    - Their cloud offering: Too expensive to compete in the home market
    - Their server/virtualization offering: Too expensive, too resource intensive and too much lock-in to compete with free and open source solutions. Consumers don't care about what's running their servers so many companies that have at least a number of smart people have converted the Microsoft server stack to something else, startups historically (the Googles, Twitters, Facebooks, SalesForces), can't afford Windows Server and Database (which runs upwards of $20k or the cost of 4 well equipped servers) when they startup and when they eventually turn profitable they've built their world around MySQL, Hadoop, OpenStack and improved upon it.

  5. Re:Declared underweight? on Container Ship Breaks In Two, Sinks · · Score: 1

    a 10 lbs (4.5kg) variation is pretty precise on a thing that can weigh up to about 30 ton - that's 0.015 percent - a precision lab scale is typically 0.05 percent precise. Besides the technical implementation of a scale on a crane (something that won't break after being repeatedly strained), even a 300kg precision (1%) would lead to a worst-case scenario deviation of 3500 * 300kg = 1050 ton which is a LOT on a ship.

    The only thing I can think of is using some type of solid-state scale on the ship itself but I don't know if those even exist and would be capable of withstanding the abuse from a journey at sea (containers slamming around and falling, salt water, freezing cold or scorching heat)

  6. Password Hint on HP Keeps Installing Secret Backdoors In Enterprise Storage · · Score: 1
  7. Re:The cost of doing the old business on FCC Rural Phone Subsidies Reach As High As $3,000 Per Line · · Score: 1

    Better yet, the pipes that carry water, electricity, sewage etc (one or all of those) can easily support getting a fiber blown through it. You can literally run 10km of fiber anywhere without any supporting equipment, longer even with better quality fiber and optics and it's probably cheaper than using copper (I think multimode fiber may soon be cheaper than shielded copper wire). The notion that you have to have a -48V POTS twisted copper line everywhere has long been surpassed by superior technology and in many cities, the copper is no longer available. My apartment (built about 10 years ago) doesn't have twisted copper running through it, only coaxial cable and ethernet.

  8. Re:I know it's all fun and games here on Masao Yoshida, Director of Fukushima Daichii Nuclear Plant, Has Died · · Score: 1

    In the US we would think twice about second guessing a higher up because of liability. If this happened in the US, the person pumping in the seawater would be liable for all the people that *thought* they got sick off the seawater vapors. If you just let the reactor blow up that person wouldn't be liable and with the way the corporations own the government, neither would the corporation be held liable, taxpayers would just pay for everything.

  9. Re:Video Speed? on Modeling How Programmers Read Code · · Score: 1

    I work with eye trackers on an almost weekly basis. These videos are severely slowed down for us to see the interaction. And yes, us humans have the tendency to read an entire page over and over again (subconsciously) even if entirely unnecessary. The saccades may have been scanning for more information or indeed to confirm something (our memory is incredibly short and prone to error, programmers definitely would know that they can't trust what they remember about a function or input data) or simply thinking (what you may call "staring").

  10. Re:Yawn, another fork on Oracle Quietly Switches BerkeleyDB To AGPL · · Score: 1

    When the company goes out of business or gets taken over by another entity, who will be doing support for those devices? How can a company justify having a broken, closed source system without support options? I have made and sold open source embedded hardware/software solutions, I use open source as a selling point.

  11. Re:Yawn, another fork on Oracle Quietly Switches BerkeleyDB To AGPL · · Score: 1

    Oh and yes, I have sold open source software (embedded platforms) which I have made from scratch.

  12. Re:Yawn, another fork on Oracle Quietly Switches BerkeleyDB To AGPL · · Score: 1

    And in the real world, how much times has that happened? Unless you are already selling to your competitors, you have nothing to fear and even then, for your competitors to be competitors, they would have to have something similar in place already that is sufficiently different to make a difference in the market. Your customers don't have a clue about your software nor will they be selling it because it's simply not their core business nor something they are competent at supporting (which is where the money is). Even in the closed source world, you'll see companies being way more profitable selling support than licenses because licenses you'll sell once and if it's expensive enough, they'll use it for 10-20 years eventually becoming a support nightmare for your company, if the license is cheap and the support reasonable, they'll buy it every year and your company will only have to support one of the more recent-ish models.

  13. Re:Yawn, another fork on Oracle Quietly Switches BerkeleyDB To AGPL · · Score: 1

    Yes they do but the fact remains that this is a horrible business model. Someone, somewhere has already built an open or cheaper alternative to whatever software you can think up.

  14. Re:Or... on Google Street View Backpack Now Available To Volunteers · · Score: 1

    As if they didn't have enough problems being regarded as spies for the US government. And it's not like the locals don't have any cause for worry because the US government already does it (http://www.guardian.co.uk/world/2011/jul/11/cia-fake-vaccinations-osama-bin-ladens-dna)

  15. Re:As a concerned Canadian on WA Post Publishes 4 More Slides On Data Collection From Google, Et Al · · Score: 5, Informative

    Check the HTML - Google gets notified of every page you visit on here, in detail.

  16. Re: 3 months for $5000? on FBI Paid Informant Inside WikiLeaks · · Score: 1

    Is the US at war with either the Taliban or Al Qaida? Where is the declaration of war?

  17. And I thought this was a post about me on Unix Guru Evi Nemeth Missing, Feared Lost At Sea · · Score: 1

    I read the first three words and I was like "aaah" but yes, sad story. Hopefully she turns up alive somewhere, she has written some great books.

  18. Re:2 Standard Questions to Evaluate any tech on D-Wave Large-Scale Quantum Chip Validated, Says USC Team · · Score: 4, Funny

    1) Yes
    2) No
    --next calculation--
    1) No
    2) Yes

  19. 3 months for $5000? on FBI Paid Informant Inside WikiLeaks · · Score: 1

    I mean, it ain't minimum wage but effectively committing treason on your people for the benefit of the corporations isn't really worth that little money.

  20. Re:The reason they don't use USB is bandwidth rela on Microsoft XBox One Kinect Will Not Work On Windows PCs · · Score: 1

    lol, it needs more than 480Mbps? Or more than 4.8Gbps for USB3?

  21. Re:Makes absolute sense, technically. on Microsoft XBox One Kinect Will Not Work On Windows PCs · · Score: 1

    This stuff has been done in labs for years though. I work with something akin to a Kinect (it has a SCSI-2 adapter, that's how old it is) and it does the exact same thing, it can detect movements as small as 1mm, it even looks like a Kinect only it's 3 camera's and laser equipment are about 2 feet apart each (the entire thing is a 2m (wide) x 20cm (tall) x 40 cm (depth) square tube) and it needs an entire room dedicated to the movement. Scaling that down is fairly simple and as you said, there are open implementations for it. The use cases for it in home hacking and entertainment are very limited, nobody wants to be waving and dancing at their machine like a trained monkey to make it do things.

  22. Re:Microsoft seem determined on Microsoft XBox One Kinect Will Not Work On Windows PCs · · Score: 1, Interesting

    Except that Apple doesn't have proprietary connectors. The problem is that MS is aping what Apple is doing way after it has become clear that it was a huge success. Apple also has lots of failures, Microsoft is just very risk averse and they don't want to take any risk in order to innovate.

  23. Re:SI units are fiat units on The Glorious Return of the Twinkie · · Score: 1

    The meter is the length of light travelled in a vacuum over a very small period of time (1/300,000 of a second or so).

  24. Re:Pipe dream. on PlayStation 4 Will Be Running Modified FreeBSD · · Score: 1

    It was advertised that you could use other OS on the Sony PS3. There were reports of 3-letter agencies building clusters out of them because of their Cell processors (this was at a time when GPGPU computer was just starting to become big)

  25. Re:Proprietary ports? on Samsung Launches 3200x1800 Pixel ATIV Book 9 Plus Laptop · · Score: 1

    There are AMD motherboards and non-Apple systems with Thunderbolt. The specification is open AFAIK, there are companies developing their own implementation.