Computable Minds

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

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Sorted by "Less negative votes"

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263

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15

Posted on: Aug, 13th 2010
Fragment of an entity relation schema
Unfortunately a lot of people, thinks that design a relational database is something very simple and that anyone that have a pair of classes of Microsoft Access in a academy can dedicate to it. But doesn't occur the same when instead of a database the work is about design a flat, an airplane or a car. In all this cases the people knows that needs an architect, an aeronautic engineer and automobile engineer, respectively. But who has the guilty of this way of think? Read more of "Why a database can't be designed by anyone?"

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126

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24

Posted on: Sep, 25th 2011
dumb software questions
A lot of people think that a computer specialist is someone that knows how use all the software that exists and have been existed on the world, in any operating system of any kind of computer or movile device. Can be an architecture sorftware, photographic retouching, accounting or the management software tailor-made only for his enterprise, don't mind!, as is a computer specialist, has to know use them. So that they think that the computer specialist will answer then they question anything related with them. Continue reading "Dumb questions about software"

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637

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33

Posted on: Jun, 8th 2011
We can classify the ways that hard disk can breakdown in two: software and hardware. With the first I'm talking about the lost of data due to virus or accidental erasure. In these cases, if it's possible retrieve the information, it is often so cheap because only we have to use the appropriate software. Instead, the errors of hardware or physics are very expensive of repair, because are needed tools and specialized installations and only if the information that contains is enough valuable, can worth pay for it. Follow discovering "Repair the hardware of a hard disk"

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155

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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. Don't stop reading the rest of "The machines neither are inmune to the radiactivity"

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269

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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. Read all about of "What will happen when the IPv4 addresses will be exhausted?"

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347

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13

Posted on: Mar, 22nd 2011
Tsunami picture of Hokusai
The tsunamis or seaquakes can be generated by earthquakes, submarine landslides, volcanic eruptions and giant meteors. All this variety of phenomena can be simulated in a computer to take preventive measures. Read all about of "Tsunami simulation"

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497

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19

Posted on: Oct, 5th 2010
The travelling salesman is a problem computationally expensive to calculate. Its complexity is exponential and, therefore, is in the category of the problems that can't be solved in a polynomial time, in other words, it's as say that an actual computer can take a lot of millennia in get the solution to the problem. If we can get the result in less time will be useful to salesmen, transport agencies, postmen, distributors, infinity of fabrication process, DNA analysis and a lot of more situations. Don't left of read the rest of "The travelling salesman problem"