Want to read Slashdot from your mobile device? Point it at m.slashdot.org and keep reading!

 



Forgot your password?
typodupeerror
×

Comment The trend is towards closed computing. (Score 4, Interesting) 284

It's always a little amazing to see how people cheer on the leaks and cracks when they appear in a closed system, yet continue to support these closed systems with their money and attention when open systems are available.

It's just this very weird disconnect in consumer psychology. You don't have to crack a PC (yet) to do what you want with it. But you make a computer small and flat and suddenly you find yourself having to pay $1+ for every little program, from a collection of programs that somebody else has decided you shall have access to. You don't see the "fuck the man" attitude at the store, you only see it when a Scandinavian high schooler comes up with a crack for your game console and the manufacturer tells you you can't have it.

I just don't get it. How many years past DeCSS are we and banging our heads against the same wall?

Comment Thank you for your interest in this topic. (Score 2, Interesting) 357

Efficiency in wireless communication is something of a purple elephant, mostly due to interference concerns that aren't at issue in wired Ethernet transactions. True, wired connections will have the occasional collision (though this is largely solved by modern algorithms and operating systems) but digital transmissions over an analog medium are difficult enough when they aren't running into each other in the air. And then you have other interference introduced by microwaves, whether from devices like cell phones, microwaves, or sunspots. It's a very noisy environment!

The concept of using algebra is a unique step forward in this field. Most here would agree, if you're in a crowded cafe and trying to carry on a conversation, it's easier to shout "Pythagoreas" than to talk about squares and triangles. But with computers it happens to be exactly the opposite because they're designed to compute -- it's what they do and what they like to do. So feed it generalities and, often, it can come up with specifics, much like the Monty Hall Paradox.

The next step appears to be to move from algebraics to broad descriptions of the type of data you want to download. This is waiting on computers with a great deal more processing power and perhaps emergent AI, but there will come a time where instead of feeding a bunch of packets over a noisy channel the Internet will simply say to your computer "short film with 20-something actor wondering whether to marry now or enjoy life for a while longer" and your system will fill in the rest, completing the transfer mathematically. This is down the road a ways, but newer technology such as lossy compression for data is already available and potentially lucrative for those who are willing to think outside of the conventional box and try something with a few more holes in it.

Comment Re:Bright and Sunny Skies Today! (Score 2) 176

If you think the risks of running in the cloud are less than the risks of running in a traditional data center, you're very much mistaken.

If one AWS AZ goes down I can bring up servers in a second one. If one AWS region goes down I can bring up servers in a second one. In fact to hedge against these risks I *already have* servers in multiple zones and regions.

Sure you can do that with traditional data centers. Just host your stuff across more than one, right? Do you have any concept of what that COSTS? Especially if you, say, want to add servers in multiple data centers, or move servers from one to another. Plus now you have multiple vendors, contacts, SLAs, and so son, and so forth. And heaven help you if you ever want to *decrease* your capacity. Have fun selling those servers on ebay.

Reddit and friends are suffering downtime from a single AZ outage because their architectures have single points of failure. Don't build your systems that way! If you have single points of failure it doesn't matter whether you're hosted in the cloud, in a commercial data center, or in your own data center. Conversely if your architecture is good and doesn't have single points of failure, the hosting question comes down to this: what do you specialize in as a business? If that list doesn't include "running a data center", don't run your own data center. If it doesn't include "maintaining a shit load of hardware", then don't host in a commercial data center either, run in the cloud. I think you will find that this latter category includes 99.99% of businesses.
HP

Submission + - HP Cloud offers up free access to OpenStack (hpcloud.com)

krow writes: "HP Cloud is offering free access to Open Stack via its public cloud. Today adoption is growing around the Open Stack APIs, and we are offering up access to push tool integration and adoption around the API's. Most recently we have been able to add support for on-demand Jenkin's orchestration via the JCloud's plugin.

API, as well as console, access is being made to the computer, object storage, and CDN interfaces. There are images being provided for different Linux distributions, and additionally images for Bitnami, ActiveState's Stackato, and Enterprise DB's Postgres images. Hopefully the access can be used to drive adoption of the Open Source alternative to Amazon's APIs."

Math

Goldbach Conjecture: Closer To Solved? 170

mikejuk writes "The Goldbach conjecture is not the sort of thing that relates to practical applications, but they used to say the same thing about electricity. The Goldbach conjecture is reasonably well known: every integer can be expressed as the sum of two primes. Very easy to state, but it seems very difficult to prove. Terence Tao, a Fields medalist, has published a paper that proves that every odd number greater than 1 is the sum of at most five primes. This may not sound like much of an advance, but notice that there is no stipulation for the integer to be greater than some bound. This is a complete proof of a slightly lesser conjecture, and might point the way to getting the number of primes needed down from at most five to at most 2. Notice that no computers were involved in the proof — this is classical mathematical proof involving logical deductions rather than exhaustive search."

Comment Amazing given the statistics. (Score 5, Informative) 115

The fact that Google achieves a 66.66% success rate in acquisitions is amazing. Most M&A's have a success rate of 17%.

According to a quote from the Wharton School of Business:

"Various studies have shown that mergers have failure rates of more than 50 percent. One recent study found that 83 percent of all mergers fail to create value and half actually destroy value. This is an abysmal record. What is particularly amazing is that in polling the boards of the companies involved in those same mergers, over 80 percent of the board members thought their acquisitions had created value.

— Robert W. Holthausen, The Nomura Securities Company Professor, Professor of Accounting and Finance and Management

http://executiveeducation.wharton.upenn.edu/open-enrollment/finance-programs/mergers-acquisitions-program.cfm

Comment Re:Why the anxiety? (Score 1) 807

I'm not certain that there would be a significant performance increase from such a low-end processor. The VIA C7-D 1.8 only scores 333 on Passmark, which puts it in the range of an early-model Pentium 4 or Athlon XP from circa 2002.

http://www.cpubenchmark.net/cpu.php?cpu=VIA+C7-D+1800MHz

It's also a 32-bit processor, so you're going to be capped at 3GB of RAM.

As an alternative, you can easily find used 4-5 year old Core2 Duo systems for $100-$200. They're 64-bit and will score 1300 or higher on Passmark.

http://www.amazon.com/Dell-755-Performance-Intregrated-Professional/dp/B004HPMH9Q/ref=sr_1_4?s=pc&ie=UTF8&qid=1330885080&sr=1-4

Comment Couldn't be happier. (Score 1) 1002

As much as some quarters would dismiss today as slacktivism or a cheap stunt, the Internet has needed for a long time now to take the political process seriously.

There is this sort of mythology that has been embraced regarding the idea that technology can route around misapplication of the legal process; that some combination of steganography, encryption and dark fiber will always allow us to enjoy the freedom we've taken for granted on the Internet. But we're on borrowed time. The abuses of copyright law as it currently stands are myriad, whether it's publicly funded research locked down in private journals, or fair use aggregation and citation of news coming under legal attack, or DMCA takedown notices being inappropriately filed, without repercussion, by "content owners" who don't actually have a right to the content they're taking down.

Hide inside TOR if you want to, but the fact of the matter is some truly awful precedent is being set and horrible legislation crafted because only one side reliably shows up to this fight. Take solace in the idea that someone will make you a "free Internet", at least until encryption is illegal over cable and airwaves. Enjoy your privacy until it becomes mandatory to provide ID to browse the web -- commercial interests already examine everything you do and put it in your permanent file. At the end of the day, do not expect technology to provide an answer when the law sets the specifications for the Internet.

I couldn't be happier that the Internet is finally creating a notification and response system for awful legislation. Now it's time to let your representatives know they'll lose your support if they draft, sponsor and pass anti-Internet bills. If they ignore you, vote Rastafarian. Also, consider buying your movies and music used, selling back to the used market, and encouraging your friends to do the same. It's high time to send a fuck you back, because right now everybody thinks we're a joke.

Slashdot Top Deals

Thus spake the master programmer: "After three days without programming, life becomes meaningless." -- Geoffrey James, "The Tao of Programming"

Working...