Arquivo para a ‘Computer – Hardware’ Categoria
The network society and be
17
Jul
There are several authors, from Husserl and Heidegger claiming
to be a return to the essence of man and also its relationship with all that is around you, in a way also the nature, although this is still neglected. You can delve into this topic referring to Levinas and Ricoeur, these most current, and also somehow Habermas and Morin, but we want to focus only on “networks”.
Castells is one of the main authors to discover this topic, especially if we think that he wrote in 1996, when “social networks” were just sketches and not popular. In one of the threads of its three volumes written that society would each see a more structured bipolarity between the network and be. It is amazing and no doubt a thorough review of the anthropological and ontological being, where man must overcome resistance and barriers to emerging society that would be the “network society”.
Castells(*) captures something essential is that this historical revision or change of being (and being that eludes him) would allow the emergence of a new society, where the sense of isolation and lack of identity, where there is a lack of consistent principles and values that may guide both the behavioral process as set guidelines for a new life of every being.
The author seems to put the company on the horizon of a true humanity, and thus we still can not let disappear the tension between the ideal (which is not virtual, because it has the potential of existence) and the real, which is the life of man as a historical being. The author does not guide the ontological way for a collective society, where models, actors and locations seem to balance the technological revolution mechanically consciences in order to give consistency and objectivity to the social roots of the “revolution.”
Returning to the first principles, with all the technology, it is in society and in man (for this so ontological) that the whole structure of society change and should emerge.
* Manuel Castells write “The Rise of the Network Society”.
Samsung mini S4 in Brazil and iWatches in World
12
Jul
The device S4 arrived in Brazil, running the latest version of Android (Jelly Bean), dual SIM card, in black and white with super Amoled screen of 4.3 inch,
dual-core processor 1.7 GHz, 3G and 4G, with the price of R $ 1,399.
It has weighs 107 grams, is 8.9 thick and comes with the tools and Story Album S Translator,
Samsung is preparing its own version of the clock with communication gadgets and June, presented at the Office of the U.S. Patent and Trademark Office to trademark “Samsung Gear”, described as “watches that communicate with smartphones, tablets, PDAs and personal computers over the internet or other electronic communication networks “.
The unit will have to compete with the patented Apple iWatch due out later this year, while Sony has introduced the second version, the SmartWatch 2 on Tuesday (9/7) at Mobile Asia Expo Shanghai.
Sony SmartWatch versions also run on Android, but
Samsung winner the batle of mobiles, news in The Telegraph give 25,47 % for Samsung and 25,09% to Apple and 22% to Sony.
Making clouds secure
10
Jul
Cloud computing means outsourcing computing tasks over the Internet, which on one hand can give users home computer processing power and unprecedented that small businesses can use Web services more sophisticated, without building huge banks data servers.
But precisely this outsourcing can lead to huge security problems, since the cloud is treated as a condominium, as can happen cite the article by MIT presented in International Symposium on Computer Architecture, assuming a set of cloud servers can be running 1,000 simultaneous applications to customers, without the knowledge of the exact web hosting service that is provided, such an application has another purpose, to spy on the other 999.
In International Symposium on Computer Architecture recently happened in June, the MIT researchers described a new type of secure hardware component called Ascend, mixing patterns of memory access to a server, which makes it impossible in the case of an attacker infer the data that is stored.
But perhaps only powerful companies and governments are able to use this, what they discuss is who can control and do not control the informal is cool, see how all states treat Snowden, who made the initial complaint data: some country will receive him?
But the solution in Brazil is the Brazilian satellite launch two submarine cables and the installation of a Federal Internet Exchange (FIE) International, here are things like na expensive things.
As 4G worked in Confederation Cup
04
Jul
As expected there were many failures in communications and 4G data volume was late, the data in the World Cup final match Brazil vs Spain were 1.7 million mobile connections and more than 4.6 million data communications, including sending e-mails, photos and multimedia messages, with an average size of 0.5 MB.
Of total data communications in final match, about 4 million were on 3G and 650 000 by 4G networks, which results somewhere around 18%.
Cesar Alvarez, had gone to Rio de Janeiro to participate in a meeting of FIFA on telecommunications and even with Maracanã empty, failed to make a connection inside the stadium, and said that that day would have a meeting with the company to know what happened in the moments of concentration of people also were observed many flaws.
So he admitted that is not working as it should, but considering only the surroundings of the stadiums where companies that “whim” in image of this events, imagine what happens to the rest of the country.
The proposal of auction of LTE in the 2.5 GHz frequency predicted that 50% of the urban areas of the six host cities of the Confederations Cup would be covered from June 1, but did not.
Inexpensive satellite network
25
Jun
On board a Soyuz spacecraft was launched from 
French Guiana yesterday four satellites that will operate the network O3b (Other 3 Billion), which will offer an internet connection of high-speed low-priced price for 3 billion people to 180 countries.
The idea emerged in 2007 from the mind of American Greg Wyler, pioneer of 3G telephony and founder of O3b Networks, traveled priate for Rwanda.
The satellite will cover a range of 45 degrees around of Ecuador Line, thus covering poor regions of Africa, Latin America, Southeast Asia, Australia and Oceania.
The network, the internet and the Web
31
May
Were years of the Cold War, the ongoing tension between the communist world led by the Soviet Union and the capitalist world led by the U.S., and the first idea of the electronic network was not having a central command so that he could keep the links in the event of destruction of some points by a war between the two blocks in tension.
So the network should be mounted without a central command, a system in which all points (network nodes) had autonomy and where the data transmitted in any direction or order not to lose the contents, the project was outlined ARPAnet Paul Baran, designed by Agency Advanced Research Projects (Advanced Research Projects Agency) of the U.S. government.
But the network went out of military control in 1970 and crisscrossed four U.S. universities, but in the next 4 years the number grew to 40. The exchange of messages and files becomes possible, and universities launch several projects, among them, the Project Gutenberg Michael Hart with the publication of books, the University of Illinois in 1971.
That same year, it created the first commercial network in the U.S., Telenet, as an access service.
The name has been used only in Internet 1982. In 1983, Vinton Cerf and Khan create the network communication protocol, TCP / IP (Transmission Control Protocol / Internet Protocol), the common basis of instructions and codes used by all computers connected to the network today.
But the Web as an application protocol only arrived in 1991, with the hypertext system, prophesied by Ted Nelson years before, and now implemented by Tim Berners-Lee, came the Web, the World Wide Web
Thus the metaphor of the network becomes years later an electronic means of communication the internet, and in the 90s a mode of communication between billion person who is the Web
Social networks were only possible within this universe of hypertext with the Internet as a medium.
Lei de Moore tem obstáculos
29
May
Moore’s Law was first established in 1965 by Gordon Moore, co-founder of Intel in 1968 and in 1975 became an executive of the company.
The original article on the law, published in electronics in 1965, was focused on economic aspects related to the cost per transistor, previous technology and scale of the new technology that was the scale of the printed circuit board (SI), which grew from small-scale integration (SSI) to medium scale (MSI), then in the 70’s came to a large scale (LSI).
But now make chips smaller and smaller, keeping pace with Moore’s Law may be more difficult today than it was last year, said William Holt, executive vice president and general manager of Technology Manufacturing Group at Intel, in a speech Jeffries Global Conference on Technology, Media and Telecom in the second week of May, and reported in PC World.
“We are closer to an end than we were five years ago? Course. But are we to the point where we can actually predict the effect, we do not think so. We are confident that we will continue to provide the basic building blocks that allow improvements in electronic devices, “said Holt.
Intel still has the manufacturing technology industry’s most advanced chip today, but it was necessary to build many new factories to new process chips, using new materials such as tungsten and Germanium (Ge) to achieve the scale of 90 to 65 nanometers, and more recently the high-k metal gates, 45 nm and 32 nm.
The technologies below 22 nm (called Silvermont) already work with 3D structures but the future must be of graphene and quantum chips, to walk in walking speed that Moore’s law.
Amazon began selling Kindle HD
24
May
Amazon began selling on Thursday the tablet Kindle Fire HD in two versions of 8.9 inches and 7 inches, among 170 countries included, according to Mashable, are the U.S.A., UK, Germany, 
France, Spain, Italy and Japan, but Brazil stands out.
But the device will only be delivered from June 13, according to the website the 7-inch device costs $ 214 without shipping, since the 8.9-inch costs U.S. $ 284.
Amazon.com had a high of 22% in revenues in the first quarter, jumping to $ 16.07 billion, due primary to higher sales of digital content services in cloud computing and gains in its core retail business: books.
Here, the options continue to be the traditional Kindle and Kindle Paperwhite which costs R$ 479, being the model of e-reader most advanced in the Brazil.
NASA and Google unite to quantic computer
20
May
Quantum computers using the principles of quantum physics processing for modifying the torque current computers, and the binary bits 0 and 1 would use many more qubits values may, for example, using 7 photonic spectrum associated with qbits the light, the colors of the rainbow.
According to the Director of Engineering at Google, Hartmut Neven, the post that announced the establishment of a laboratory in collaboration with NASA: “We believe that quantum computing can help solve some of the most challenging issues of computer science, especially in terms of learning, “artificial Intelligence speaking, this is due to” learning machine is basically build better models of the world to make more accurate predictions. ”
But the problem is not just building the computer, more and more close to reality, there is still the problem of the creation of algorithms that can utilize these unique properties that provide basic information qubits is not only 0 and 1 .
Google says it is making progress in this direction, Neven said: “We have created a machine-learning algorithms quantum recognizers produces a very compact and efficient – very useful when you have little power of disposal, such as a mobile device.” That would be an immediate use of qubits.
The lab is building the D-Wave, but is based on a slightly different design of quantum computing with the adiabatic model, which is very different to the models of “doors” (gates) that the whole community that uses research the subject.
This leads many critics to skepticism of some critics, but college exams this week conducted at the University of Amherst shows that with certain tasks, a quantum computer lab worked fine.
Projeto aberto de Data Center
17
May
Um projeto intitulado OCP (Open Compute Project ) foi iniciado ontem num esforço de construir um centro de dados abertos para a rede, com um modelo flexível e eficiente, que evite desperdício de componentes desnecessários, com um sistema totalmente aberto a todos prestadores de serviços e desenvolvedores de hardware para DataCenters.
Entre os apoiadores iniciais do projeto já estão o Facebook, Intel e VMware, além de potências tradicionais em redes como a Netronome e Broadcom.
Em entrevista ao site v3, o presidente da OCP Frank Franovsk afirmou: “É nossa esperança que um sistema alternativo aberto permita um ritmo de inovação e desenvolvimento de hardware de rede, que ajude as definições de software continuarem evoluindo e prosperarem e, por fim, proporcionar aos consumidores destas tecnologias mais liberdades para construir estas infraestruturas mais flexíveis, escaláveis e eficientes a disposição”, conforme o site v3.co.uk .
Confirmando que é um novo tipo de empresa, aberto e colocada numa folha em branco, conformo afirma o presidente, onde esta empresa: “Este é um novo tipo … começando um projeto com apenas uma ideia e uma folha de papel, em vez de construir em um projeto existente que seria concebido para a fundação , e estamos animados para ver como o grupo de projeto proporciona em nossa visão coletiva “.
A ideia de projetos assim, num modelo misto com uso do crowdsourcing, está evoluindo, como prova o projeto Ouia (veja nosso post).
