Computable Minds

Blog of popular science about the more exiting branches of computer science.

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Sorted by "Less negative votes"

visits

115

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25

Posted on: Apr, 13th 2011
Signal warning of radiactivity
The processors aren't inmune to the radiactivity. This it produces soft errors, that are errors in the signals of its circuits, produced by the noise that generates the radiation on it. The consequences of the radiation over the machines aren't so devastating as over the human, because in the worst case we can reboot the machine, but the things that could do the machines affected by radiation to the humans, it could be dangerous. Learn more about "The machines neither are inmune to the radiactivity"

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228

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24

Posted on: Jan, 11th 2011
IPv6 protocol
According to the IANA (Internet Assigned Numbers Authority), the organization that assign the IP addresses, in February of 2011 all the IP addresses will be occupied. The solution to this problem is being implanted, approximately from the year 2000 and will follow implanting during a lot of years more. This consists in replace all the software and hardware that use the IPv4 protocol to another that use the IPv6 protocol. Surprise yourself with the rest of "What will happen when the IPv4 addresses will be exhausted?"

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727

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27

Posted on: Oct, 1st 2010
Phosphorus of a CRT screen
The screensavers, theoretically, serve to protect the monitors from the deterioration of the quality of the screen produced when you leave an image fixed during a lot of time. With the abandon of the CRT monitors in favor of the TFT-LCD, the screensavers leave of be useful, but a lot of people follow believing that still serve to save the screen. Learn more about "Screensavers. Save they my screen?"

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261

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70

Posted on: Aug, 24th 2010
CAPTCHA
The web pages increasingly receive more SPAM of programs that automatically fill the forms of the webs. To avoid it, appears the annoying CAPTCHA ("Completely Automated Public Turing test to tell Computers and Humans Apart"). A CAPTCHA consist in a test that has to pass the person that is filling the form, to demonstrate that is a human. But, are there any test that can surpass a human and not a machine? Learn more about "Could the CAPTCHA of the future distinguish a human from a machine?"

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176

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19

Posted on: Oct, 30th 2011
W3C WCAG logo
Surely that a lot of times you have found webs impossible of be read, due to the color combinations used.
For that reason I've programmed a script that can transform any webpage making it more accessible. If you drag and drop this link to the bookmarks or favorite bar of your browser, and you click on it, when you find a web with colors that doesn't allow read it clearly, the web will change their color with the colors of Computable minds and the accesibility will be better in the majority of cases. If you want that the script will be executed always in all the webs, you can install it, having activated the Firefox extension Grease monkey, or using Chrome, and clicking in this link. Read the rest of "How to see better the web pages and improve its accessibility?"

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2102

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26

Posted on: Jun, 27th 2011
Today I'm going to dedicate the post to explain some basic concepts about the files that the 99% of the people that use a computer don't understand it very well.
Some users know that the last letters that there are at the end of a file (the extension), identifies the type of file, so, for instance, an archive ended in .JPG is a type of file of image and another ended in .GIF is a different image format with other characteristics. This, is true for most cases, but causes confusion in the cases where the extension isn't of a concrete format, unless of a format container. Surprise yourself with the rest of "Differences between extension and format in a file"
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