Category Archives: Technology

Blue-ray Technology

December 22, 2010   mkwingzero   No comments

The Density Of The Data

Both Blu-Ray and HD-DVD used the standard encoding the video (MPEG-2, MPEG-4, VC1 and other) as well as the standard audio Dolby, DTS, and other. The film also in-encode in the measurement and frame that was equal, namely 1920 and 1080 with 24 frame per second (fps). The two formats also the uniform in used long the wave of the blue laser 405 nm. Both of them will make small the picture to 720p (the resolution 1280×720) and converted above to frame rate the TV that required the appearance 30 fps or 60 fps.
Then where his difference? Was located in the measurement aperture (the hole peered) from the lens that was used to focus the laser and the thickness of the surface of the disk. Blu-Ray could focus the laser beam in a short manner that enabled the disk to keep the data was closer. This that made Bluray could devour 25 GB to single the layer and 50 GB to dual the layer. Compared with HD-DVD that only 15 GB and 30 MB in single and dual the layer.

The winner: Blu-Ray that became the winner of the DVD format war berdefinisi high.

Picture Quality
Still was related to the density of the data, the quality of the picture was also not free from the capacity of the two formats. With the difference of the storage capacity, the possibility was reduced by him the quality of the picture of the film could not be occasionally avoided. Each format of the compression required the film studio pulled interesting between the quality of the picture and made small the measurement of the data. The choice is, they could do encode the film was of high quality, but rather greedy storage space or reduced the quality of the picture of the film in order to save the requirement for storage space. However, not meant the picture was made small for the sake of storage space (continue to in the measurement and frame rate like above), but lowered “respons frekuensi” from pixel. f being represented, you bought two same films, one of them the film was of high quality and other the film was of barely adequate quality. The measurement of his picture continued to be equal, but you saw one of the films more was glad being watched.
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Yahoo’s “new” idea to stop spam

August 31, 2009   mkwingzero   No comments

First of all, the idea is not at all new. Bill Gates talked about a method to pay a very small fee for each sent email in 2004, but the idea proved to be not realistic. Yahoo’s CentMail does nothing else than to revive this idea in a new form: each sender pays 5$ for 500 virtual stamps and the money goes to a charity organization at user’s choice (a preselected list of charity organizations will be made available). Each email sent uses a unique virtual stamp plus a signature to promote the service. CentMail guarantees that the stamps cannot be faked nor reused, practically trying to destroy the business model of the spammers by making the sending of the emails too expensive for them.

So, one may ask : where is the catch? Will this idea really be the end of spam?
Of course not. 

CentMail and Yahoo acknowledge this in their FAQ by providing answers to many legitimate questions. This is just a charitable twist on the old idea of email postage stamps which is simply not realistic because it hopes that everybody will pay. Of course, this is not going to happen, so this approach fails from the start.

CentMail says that the sender will only pay if the email is being received and read by the intended recipient.
What will happen to the massive mailings sent by commercial organizations? Will they accept to pay millions of dollars per year only because they send commercial email? Or, will an email notification service or a mailing list accept to pay for every notification it sends you? Of course not. The solution to this problem is to whitelist this category of senders (as CentMail suggested in their FAQ).

This means that the same rules do not apply for all email senders. The argument for this is that people and organizations donate anyway a lot of money per year to charity, CentMail being just an intermediary for this money.

As a conclusion, I have to admit that from time to time is nice to see an idea that wants to turn the world upside down in order to make good things. I like the idea, but I do not think that any user would ever pay for something that has been from the beginning free and that is sending emails for free!

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Does Google’s OS decrease or increase security risks?

July 13, 2009   mkwingzero   No comments

Wednesday’s two big technology stories–Google’s Chrome-based operating system and cyberattacks against U.S. and South Korean government Web sites are oddly related. The stories are connected because if Google does well at gaining market share for its browser, we could see fewer successful attacks. Or maybe we’ll see more attacks.

The reason hackers succeeded in launching denial-of-service attacks against government computers in the U.S. and South Korea is because they were able to enlist an army of “zombie” computers to carry out the attack. And what do those computers likely have in common? The vast majority of them likely run Microsoft Windows.

Whether Windows is inherently less secure than Mac OS X or Linux is debatable, but one thing is for sure–it’s more popular and therefore a more attractive target to hackers. Indeed with nearly 90 percent of the world’s PCs running Windows, it’s something of a “single point of failure.” Figure out how to infect Windows PCs and you can stage a very successful attack.

Linux–which is the underpinning of Google Chrome–is not entirely exempt from malicious software but historically Linux machines are less likely to be infected. So it stands to reason that the more machines running non-Windows software, the safer we’ll all be.

But there’s another side to this story. The Chrome OS will be far more Web-centric than Windows, which means that many–if not most–of its applications will be running over the Internet. What’s more, people’s data will be stored “in the cloud,” much of it on servers run by Google. So while Google may help reduce Microsoft’s potential as a single point of failure, it increases its own. If hackers were successful in launching an attack on Google, that would affect not only people’s ability to use Google apps, but the integrity of their data.

Although there weren’t any reported data breaches, there was a day in May of this year when Google sites were partially inaccessible as a result of a technical glitch. On that day, millions of people were unable to use Google services, including Google Docs and Spreadsheets. Say what you want about Microsoft, but even if the company totally shut down its Web operations, its operating system and PC applications would still run.

Personally, I’m a big believer in competition and like cloud computing, so I welcome Google’s entry into the operating system arena. But like almost anything worthwhile, it’s not without risk.

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Blue-ray Technology

July 07, 2009   mkwingzero   No comments

The Density Of The Data

Both Blu-Ray and HD-DVD used the standard encoding the video (MPEG-2, MPEG-4, VC1 and other) as well as the standard audio Dolby, DTS, and other. The film also in-encode in the measurement and frame that was equal, namely 1920 and 1080 with 24 frame per second (fps). The two formats also the uniform in used long the wave of the blue laser 405 nm. Both of them will make small the picture to 720p (the resolution 1280×720) and converted above to frame rate the TV that required the appearance 30 fps or 60 fps.
Then where his difference? Was located in the measurement aperture (the hole peered) from the lens that was used to focus the laser and the thickness of the surface of the disk. Blu-Ray could focus the laser beam in a short manner that enabled the disk to keep the data was closer. This that made Bluray could devour 25 GB to single the layer and 50 GB to dual the layer. Compared with HD-DVD that only 15 GB and 30 MB in single and dual the layer.

The winner: Blu-Ray that became the winner of the DVD format war berdefinisi high.

Picture Quality
Still was related to the density of the data, the quality of the picture was also not free from the capacity of the two formats. With the difference of the storage capacity, the possibility was reduced by him the quality of the picture of the film could not be occasionally avoided. Each format of the compression required the film studio pulled interesting between the quality of the picture and made small the measurement of the data. The choice is, they could do encode the film was of high quality, but rather greedy storage space or reduced the quality of the picture of the film in order to save the requirement for storage space. However, not meant the picture was made small for the sake of storage space (continue to in the measurement and frame rate like above), but lowered “respons frekuensi” from pixel. f being represented, you bought two same films, one of them the film was of high quality and other the film was of barely adequate quality. The measurement of his picture continued to be equal, but you saw one of the films more was glad being watched.

If the film studio will record de­ngan the high quality and his film have a duration long, Could be disk space that remained did not suffice for additional material like the film that will come or other. For Blu-Ray, this was not the matter because he pocketed the bigger capacity. However for HD-DVD, this could become the problem. The film studio must choose whether reducing the quality of the picture or adding the second disk so that all of all film material enters (will have an impact the rise in the retail price).

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