Hardware: agosto 2011

terça-feira, 30 de agosto de 2011

Claro começa a testar celular 4G LTE no Brasil já neste ano

URL: http://exame.abril.com.br/tecnologia/noticias/claro-comeca-a-testar-celular-4g-lte-no-brasil-ja-neste-ano

A Claro deve iniciar os testes com redes celulares de quarta geração em algumas cidades brasileiras ainda neste ano

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Tablets e smartphones vão substituir 95% dos PCs, diz pesquisador

URL: http://exame.abril.com.br/tecnologia/noticias/tablets-e-smartphones-vao-substituir-95-dos-pcs-diz-pesquisador

Para Jeff Cole, só 4% a 5% dos usuários de PC precisam de um computador completo. Para os demais, basta um tablet ou smartphone

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Gadget Duplicador de Discos Rígidos

URL: http://feedproxy.google.com/~r/digitaldrops/~3/CGzxdJBz2BQ/story01.htm

Se você precisa fazer uma cópia completa de um disco rígido e está sem computador, a StarTech tem a solução: um gadget duplicador de discos rígidos.

O Standalone Portable Hard Drive Duplicator é portátil e além de duplicar discos rígidos SATA diretamente de um para o outro a uma velocidade de 72 MBps, também funciona para conectar um hd SATA a qualquer notebook ou desktop via USB.

O Standalone Portable Hard Drive Duplicator custa US$77,99 no site da StarTech.

Via Ubergizmo.

domingo, 28 de agosto de 2011

Walk and Talk For Hours Using Shoe Power

URL: http://www.wired.com/gadgetlab/2011/08/walk-and-talk-for-hours-using-shoe-power/

The power created from walking creates a bridge from the phone to a cellular network, which dramatically extends battery life. Image courtesy of InSetep NanoPower

Taking the stairs could mean more time between charges for your phone.

Researchers at University of Wisconsin at Madison have developed a shoe insert that uses the impact of your strides to generate electricity for your phone. The prototype “footwear-embedded harvester” consists of two pouches filled with nanoparticle liquid metal called galinstan. It generates electrical current as it is forced through narrow channels, a process the researchers call “reverse electrowetting.” Power is stored in a battery in the arch of the shoe.

Other kinetic energy harvesters use piezoelectrics, which feature crystal sheets that polarize and produce energy through movement. The drawback is the technology generates so little power that an iPhone 4 wouldn’t notice the boost.

The power sneaker features the option to plug a phone into the shoe, but researchers Tom Krupenkin and J. Ashley Taylor sought a less cumbersome approach. They found the biggest draw on your phone’s battery occurs when it’s searching for Wi-Fi or a cell tower signal, so they attached a Wi-Fi transmitter directly to the harvester. The shoe, not the phone, powers the connection to wireless signals. They say that means your battery can last up to 10 times longer.

The device is also able to be directly connected to a phone, which could be useful for soldiers toting night-vision goggles, or marathoners who rely on their iPhone 4’s music for motivation. And with no moving parts, the system requires minimal maintenance, making it a boon for those in areas with little or no electricity.

Krupenkin and Taylor plan to commercialize the technology through their new firm, InStep NanoPower. They’re courting shoe makers to design an incorporated piece of footwear.

segunda-feira, 22 de agosto de 2011

The 23 Greatest Graphics Cards Of All Time

URL: http://www.pheedcontent.com/click.phdo?i=0327acbd581014b5295c1a76880f1611

Do you remember the first card that introduced you to 3D gaming? How about the best accelerator you ever owned? Take a trip with us down memory lane as we recount the 23 most powerful graphics boards of their respective eras.

sábado, 20 de agosto de 2011

SSD Performance In Crysis 2, World Of Warcraft, And Civilization V

URL: http://www.pheedcontent.com/click.phdo?i=a8348135c429d0bd06631350d5f1aa13

There are a ton of terms used to quantify storage performance. If you're a gamer, you have to be wondering how such dry terminology can apply to having fun. Rather than telling you, we're going to dissect three popular titles to show you instead.

Deal Extreme lança site de compras coletivas

URL: http://rss.idgnow.com.br/c/32184/f/499646/s/176daa47/l/0Lct0Bidg0N0Bbr0Ccgi0Ebin0Credirector0Bcgi0Drnd0F0A0Guid0F22d9822aa0A5abef570Ae7c9e28cf2c3280Gsite0Fidgnow0Gorigem0Fidgnow0Cinternet0Gurl0Fhttp0J3A0C0Cidgnow0Buol0N0Bbr0Cinternet0C20A110C0A80C160Cdeal0Eextreme0Elanca0Esite0Ede0Ecompras0Ecoletivas0Gtitle0FDeal0J20AExtreme0J20Alan0JE7a0J20Asite0J20Ade0J20Acompras0J20Acoletivas0Gtype0FRSS/story01.htm

Loja virtual chinesa é famosa por vender gadgets de baixo custo com frete internacional grátis.

Drogaria Onofre estreia no varejo de eletrônicos com entrega em até 4 horas

URL: http://rss.idgnow.com.br/c/32184/f/499646/s/176557bc/l/0Lct0Bidg0N0Bbr0Ccgi0Ebin0Credirector0Bcgi0Drnd0F0A0Guid0F42a5ca80A9e210Aed5d563883d775b8db60Gsite0Fidgnow0Gorigem0Fidgnow0Cinternet0Gurl0Fhttp0J3A0C0Cidgnow0Buol0N0Bbr0Cinternet0C20A110C0A80C150Cdrogaria0Eonofre0Eestreia0Eno0Evarejo0Ede0Eeletronicos0Ecom0Eentrega0Eem0Eate0E40Ehoras0Gtitle0FDrogaria0J20AOnofre0J20Aestreia0J20Ano0J20Avarejo0J20Ade0J20Aeletr0JF4nicos0J20Acom0J20Aentrega0J20Aem0J20Aat0JE90J20A40J20Ahoras0Gtype0FRSS/story01.htm

Catálogo tem 300 produtos, entre DVDs, TVs e telefonia; prazo de entrega, válido para a Grande São Paulo, será o principal diferencial.

segunda-feira, 15 de agosto de 2011

Intel to Offer CPU Upgrades via Software for Selected Models

URL: http://www.anandtech.com/show/4621/intel-to-offer-cpu-upgrades-via-software-for-selected-models

Intel has posted an upgrade service page on their website which indicates that Intel will again be offering upgradeable CPUs. This is not totally unheard of since Intel offered a similar service for Pentium G6951 a year ago. Back then, $50 bought you Hyper-Threading and 1MB more L3 cache, and the SKU of the CPU changed to G6952. This time Intel has expanded the lineup and the upgrade service is available for three CPUs: i3-2312M, i3-2102 and Pentium G622. Unfortunately we don't know the price yet but we do know that the upgrade offers higher frequency and possibly increased amount of cache. Here are the CPU before and after the upgrade:

CPU Before Upgrade	CPU After Upgrade	Performance increase
i3-2312M (2.1GHz, 3MB)	i3-2393M (2.5GHz, 4MB)	10-19%
i3-2102 (3.1GHz, 3MB)	i3-2153 (3.6GHz, 3MB)	12-15%
Pentium G622 (2.6GHz, 3MB)	Pentium G693 (3.2GHz, 3MB)	15-23%

The after CPUs have not been released so the specs are just calculations based on the performance gains Intel reported.

Upgrading the CPU is very simple. All you need is the upgrade card. Then download the installer from Intel's site and run it. At some point, you will be asked to insert the code from the upgrade card (no, you can't get this for free).

The need for such upgrade is fairly small though. We don't know the price so it's hard to say can the upgrade be worth it or not, but if the price will end up being $50 like before, it's pretty expensive for 10-23% gains. Pentium G622 costs only ~$65, meaning that you get 23% performance increase for 77% more money. Not exactly a bargain. i3s cost a bit more but even then, you aren't getting a good performance/price ratio.

The only useful scenario could be with OEM PCs when you may not be able to select a specific CPU and upgrading the CPU can be harder (or even impossible) and may void the warranty. Intel has blocked overclocking in non-K CPUs, so you are stuck with the stock frequency. In some rare occasions where the extra CPU speed is really needed, paying the upgrade price can be worth it. However, what we are looking at are low-end CPUs, so anyone who needs a powerful CPU should look at Intel's i5 and i7 lineups in the first place.

Source: Intel