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Comment Re:no, it's not dead (Score 1) 170

I agree. Downloaders, Hulu watchers, or network website viewers will not see the TV ads because that's not how the system currently works. To include those folks in the Nielsen ratings would make the ratings less relevant to the people who actually pay for the shows. Viewers don't pay for the shows, advertisers do (excepting premium, which, why can't I buy an Internet subscription from HBO?).

It's unfortunate that the number we talk about as a show's popularity is the Nielsen number, which increasingly does not represent actual popularity. Because these networks are a business, though, as these other audiences make up more of their income due to Hulu ads/whatever, the networks will have to start taking them into account. Then the definition of show popularity will no longer solely be the Nielson rating based on TV viewership. It'll probably just be proportional to delivery medium income...

Comment Re:it always baffles me (Score 4, Informative) 113

... why are mission critical devices connected to the internet

sure we know that the weakest link is the meatware, not the hardware, but still...

They aren't, at least, not directly. They are however generally connected at various points to the "business" network which is connected to the Internet (people gotta email). The literal air gap is largely fiction. The business network is hacked, then some vulnerability exploited in the bridge points or routers (it's a network of networks!). Why connect the SCADA to the business network at all? To get the data out to do reports, send email alarms etc. in theory this data exporting should be secure. Problem is that who is hacking your SCADA system? It's not the usual suspects; there is no money in it and the barrier of entry is too high for the script kiddies. It's other countries wanting to perform espionage. How the hell do you protect against that? Look at stuxnet, I mean really look at how that took down the centrifuges. Governments have resources that the average hacking group simply doesn't (or SCADA group). They also have no reason to reveal a compromised system. There could be sleeper, targeted, custom malware sitting on every SCADA server in the US, just waiting for the a time where it will be useful to activate. It's a brave new world!

Comment Re:Don't they use Perforce internally? (Score 1) 227

Linux is small. And it's just source code. Storing binaries happens a lot for a lot of reasons. You might have binaries for a third party library, you might have various art assets, compiled CHM files for help, installers for dependencies, etc etc. Git was designed for a particular problem space, in which binaries were not considered a big issue. Other groups have different requirements.

Comment Re:What is Mesa? (Score 5, Informative) 80

Here's the relevant part (sorry, editing on a phone isn't that easy...):

Now comes the fun part: modern hardware acceleration. I assume everybody already knows what OpenGL is. It’s not a library, there will never be one set of sources to alibGL.so. Each vendor is supposed to provide its ownlibGL.so. NVIDIA provides its own implementation of OpenGL and ships its ownlibGL.so, based on its implementations for Windows and OS X.

If you are running open-source drivers, yourlibGL.so implementation probably comes from Mesa. Mesa is many things, but one of the major things it provides that it is most famous for is its OpenGL implementation. It is an open-source implementation of the OpenGL API. Mesa itself has multiple backends for which it provides support. It has three CPU-based implementations: swrast (outdated and old, do not use it), softpipe (slow), llvmpipe (potentially fast). Mesa also has hardware-specific drivers. Intel supports Mesa and has built a number of drivers for their chipsets which are shipped inside Mesa. The radeon and nouveau drivers are also supported in Mesa, but are built on a different architecture: gallium.

Comment Re:Chaos... what? (Score 1) 74

There are a lot of ways to look at hard, somewhat generic problems, like Sudoku. Have you seen the SAT problem? http://en.m.wikipedia.org/wiki/Boolean_satisfiability_problem One way to consider it is like you describe - a set of simultaneous equations. Another way to consider it is to use the equations and some rules to draw a graph, then perform graph operations. NP problems are an active area of academic interest. It's generally not possible to know how hard these problems are before solving them, so if this technique can be more general than just Sudoku, that could be important.

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