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Netgear launches its first Smart Switch with 10 Gigabit connectivity

October 1, 2011 Computers
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Netgear brings to market its first switch “web manageable” 10 Gigabit medium for businesses. A first on the market according to the manufacturer who explained that the Prosafe Stackable Smart Switch Gigabit GS752TXS (phew …) is the ideal additional equipment for new servers with 10 Gigabit interfaces. It delivers very high performance for applications such as virtualization, replication and backup of data, IP video, or transaction processing intensive.

In support of this promise, 48 Gigabit ports for connecting devices to the network, plus 4-port 10 Gigabit (SFP + format) for the stack and the uplink to servers. This, says Netgear, “  for less than half the cost of a traditional switch manageable . “Other arguments put forward by the manufacturer: feature-rich, a full range of security features, simple to configure and administer via a web interface. “  The new switch goes well beyond the functions of traditional management level 2, adds Netgear. Static Routing function allows to optimize network performance by allocating only the switch to the management of internal traffic, the router being dedicated to traffic management and external security. The dynamic assignment to VLANs increase security by requiring a single access policy for users anywhere in the network. Support for IGMP snooping and MLS allows switches to direct multicast traffic only to hosts named, thus saving bandwidth . “

The GS752TXS also offers security features such as access control lists based on MAC / IP addresses and TCP / UDP, prevention against DoS attacks Auto, DHCP snooping and port protection. Stacking capabilities allow administrators GS752TXS of the network stack up to six switches together to form a single logical unit with up to 40 Gbit / sec of bandwidth and full redundancy for maximum availability. The stack can then be configured and managed as a single switch with up to 288 network ports, which greatly simplifies administration and maintenance. In addition, the switches “stack” can be installed on multiple sites in SFP + fiber connections.

Note that the ProSafe switch GS752TXS is guaranteed for life, it provides access to technical support services to high level, including an on-site replacement warranty on day one in case of failure. Its retail price is € 1710 HT.

Facebook accused of Privacy Again

September 28, 2011 Computers
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During the conference F8 , Mark Zuckerberg has praised the “sharing without friction.” He finds himself-how-often with a new controversy Privacy on the arms.

This weekend, blogger and hacker Nik Curbrilovic accused Facebook to continue to monitor the online activities of users, even when they are disconnected from the network. He writes, supporting evidence, “Every time I visit a site with a button like, sharing, or any other widget, the information including my account number, is sent to Facebook, even when I am no longer logged. The only solution is to delete all cookies Facebook “, these small files stored on the hard drive by the browser, especially for remembering passwords.

Facebook engineer in charge of logins immediately responded via a comment (press service confirmed). It recognizes that cookies are changed, but explained that it was “a measure of security and protection, particularly to identify spammers or when someone tries to access your account.” Above all, it Facebook says that “does not use cookies to social plugins sell advertising or information to partners,” but simply to “customize” its services.

This is not the first time a player in the Web is accused of following too close to its users. Google, with the bar omnibox Chrome or Microsoft with its toolbar Bing were severely criticized.

Facebook, meanwhile, is considering becoming a social infiltrating every corner of the canvas. Sharing with “frictionless,” each song is played on Spotify example in the new “ticker”, this module to become the “pulse” of activity of Facebook. The network makes a transition from sharing a “case by case” basis, controlled by the user, the “all or nothing” automated once the initial authorization given.Beyond questions about privacy, this deluge of data raises a more fundamental issue: that of relevance.

NASA postponed the shooting of two probes

September 10, 2011 Computers
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NASA announced Thursday the postponement, due to strong winds, the launch scheduled on the same day of two probes which must make an accurate map of the internal structures of the Moon, to better understand its evolution, but also that of the Earth.The next launch window from the base of Cape Canaveral in Florida (Southeast U.S.) will open Friday at 8:33 local time (12:33 GMT), said the U.S. space agency.Scientists hope the probe will uncover the secrets of the moon and help them understand how our natural satellite and the Earth and other rocky planets have evolved.
GRAIL both probes A and B must make very precise measurements of lunar gravity, showing the distribution of masses, and the thickness and composition of the internal strata of the moon to its core.
Three and a half months will be needed if the probes reach their destination, traveling more than 4 million miles.
Since the beginning of the space age in 1957, Moon was the subject of 109 missions, including six manned Apollo program of NASA, which helped to twelve people to walk on the moon and back 863 pounds of rocks and dust that continued to be discussed today.
A study, based on some of the analysis, published in the spring in the journal Science, reveals that the interior of the Moon contains, in proportion, as much water as the depths of the earth.

Nintendo Wii U – E3 2011: Announcement Trailer

June 8, 2011 Computers
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Nintendo Unveils’ Wii U “, a new home console with touchscreen.

A Cooler Computer, soon a reality?

June 3, 2011 Computers
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Swiss scientists are currently working on developing a computer that, unlike today’s PCs, would cease to generate heat but is also capable of producing cold.

In the race to miniaturization , a technical problem will soon arise. Indeed, the more computer processors are small and compact, they generate heat. This temperature prevents eventually pursue in this direction, as explained by Professor of theoretical physics at ETH Zurich (ETH), Renato Renner.

It is from this observation that a team of researchers Swiss have sought to develop a computer ” quantum “, capable of producing cold rather than heat. A team member told the AFP that, for now, ” it is only a purely theoretical ” but he also said that within 30 years, new more powerful computers and “cooled” could be marketed. The experimental phase which must soon take place will be held at the University of Singapore.

As the researchers explain, erasure and data as possible on today’s computers is a process that releases energy. Also, ETHZ physicists seek to develop a PC that could make the erasure reversible and, thus, to identify the cold instead of hot. Only a quantum computer, much faster than those we are currently installed will be capable of that. They would indeed be able to archive data by atom, or over 100 times more than conventional computers, which require several hundreds of atoms to store one bit of information.

Microsoft Standalone System Sweeper

June 3, 2011 Computers
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According to Microsoft Security Essentials, the Redmond company is proposing a virus or rather a starter solution antivirus “offline” with Microsoft Standalone System Sweeper Beta. Who among us has not encountered at one time or another to a problem of taking up its Windows operating system, which is blocking the start of most of the time a hardware problem or system files and sometimes stubborn virus that prevents booting.

Microsoft Standalone System Sweeper Beta wants to be an antivirus startup, the computer security firms like Symantec offer a system that can boot directly from the installation CD to do a scan mode.

Standalone System Sweeper with Beta, Microsoft proposes that we turn a disinfection tool “offline” you can burn to a CD or save to a USB key

Intel introduces Ultrabook design

June 1, 2011 Computers
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Intel introduces Ultrabook design

The Ultrabook, New ultraportable PC by Intel

June 1, 2011 Computers
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Between laptops and netbooks, there really room for a new category? Yes meets Intel, which announced Monday a category called Ultrabook. Simply put, computers ultraportable that eyeing the side of the Macbook Air or the Samsung 9 series but the sale price is below $ 1,000.

With a SSD (flash memory), these phones could, like their rivals high-end, start in about fifteen seconds and out of standby instantly. The first model, the Asus UX21, appears to 18mm thick and should be released in late 2011.

The new range should be 40% of sales of laptops by the end of 2012, told Reuters the vice president of Intel Tom Kilroy during an interview in San Francisco. “We want to allow maximum responsiveness. You will always be operational, always connected, more responsive, like a tablet type iPad today, “he promised.

The Californian, whose processors equip 80% of computers sold worldwide, tries to make PCs more attractive as consumers are turning more and more towards mobile devices like Apple iPad, a majority of processors equipped based on the ARM architecture of the British.

“We’re late. Today, there are many bars that do not have Intel chips, but we are working hard to catch up and I think we’ll fill the shelves, “said Mooly Eden assured, Intel .

Intel announced earlier this month a new chip technology called 3D, allowing accommodate more transistors and consume less energy in order to gain a foothold in the market for smartphones and tablets.

Firefox 4: 100 million downloads in one month

April 26, 2011 Computers
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A month after its launch version 4 of Firefox Surpasses 100 Million Downloads, a symbolic success that does not, however, stimulates the part of the browser market still stagnant at last count of StatCounter.

The counter downloads in real time the browser is currently capped at over 105 million downloads, leading from this version to 8.04%.

However, the browser seems to be difficult to attract new users, despite all these developments.
The total market share of Firefox has even lost a third of a point between the months of March and April and reached below 30% while Google Chrome continues to rise sharply.

Internet Explorer 9 also fails to boost its market share, which suffered the same decline as that of Firefox, despite the arrival of this version through Windows Update last week.

 

Visual Certexam Suite

April 16, 2011 Computers
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How to open vce file?

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