Terahertz bandwidth: up to a thousand times greater speeds

Researchers from the University of Pittsburgh presented a new way to significantly increase wireless data transfer speeds up to a thousand times faster.


Specifically, the team created a "frequency comb", which includes over 100THz (terahertz) in bandwidth. This is achieved through a dense collection of atomic motions in a semiconductor crystal silicon.


In other words, separating a light color in a series of spectral lines equidistant between them. During the experiments, the team observed that the reflected light oscillated in 15.6THz. Theoretically, that is, this discovery opens the door for smartphones and tablets to transmit data at frequencies of terahertz.


The terahertz frequencies are one of the electromagnetic spectrum between infrared and shortwave light. Modern devices from the other frequencies are limited to gigahertz.


H group believes it can even go further and experiment to succeed in classes petahertz frequencies which in turn is 1000 times faster than the number who achieved today.

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Intel introduced original Ultrabook with touchscreen display at CeBIT 2012 [Video]

During CES 2012 last January, Intel said Ultrabooks the future that will feature touch screens and showed some prototypes. Two months later, on the occasion of the exhibition CeBIT 2012, the company returns with a touchscreen Ultrabook that will serve as a reference device for the new category!




Delegates who are technology pages in the report, had the opportunity to periergastoun the prototype device, and reports from various states that have:


Screen multitouch 10 points 13.3 "(1600 x 900)
Processor Intel Ivy Bridge 1.5GHz
Jacks 2x USB 3.0, 1x SIM, 1x SD, 1x HDMI
Built-in antenna 3G, NFC chip
Of course, the user can use the mouse and keyboard instead of the touchscreen. It is interesting to see if Intel prepared the class of touchscreen Ultrabooks running Windows 8, to hit both the tablets (eg Asus Transformer) and other ultra notebooks.

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Toshiba Qosmio X870, an amazing 3D gaming laptop!

Toshiba has unveiled its new 3D gaming laptop, Qosmio X870, with a 17.3 "LED backlit Full HD display (1920 × 1080), next-generation NVIDIA GPUs, NVIDIA 3D Vision technology and content can be converted into low-resolution HD and 2D to 3D!




To laptop is equipped with Sandy Bridge processor, hard disk drive (HDD) 3TB or alternatively hybrid SSD, Blu-Ray or DVD drive, Harmon Kardon stereo speakers with support for virtual 3D sound, four ports USB 3.0 (of which two remain active and the laptop when it is closed for charging gadgets), HDMI, WiFi b / g / n and Bluetooth 4.o.


These features complement a backlit keyboard in red, a Full HD webcam and a pair of three-dimensional glasses NVIDIA. The disposal is expected to start for England in the second quarter of a previously unknown value.

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New "invisible" computer virus appeared!

So now to activate a virus the user should either open an email in which the virus was hiding or storing a photograph or a video in which there was a virus or other malicious program.



But recent computer users have become very cautious and digital underworld had to find a new way to invade computers. So now a freshman virus circulating in cyberspace that invade and infect computers invisible.


The attacker sends the victim of a candidate completely innocent email that contains nothing "reprehensible." When the user presses start to open his computer the email itself automatically activated allowing the attacker to connect from his computer with the victim's computer and send the virus.


The email in question acts as a bridge carry the virus and infected never seems to understand the protection of computer programs. The only trace of the virus is the word "loading» (loading) that occurs at some time in the computer screen.


Experts advise users to update virus protection program with the latest "updates" and use the latest versions of browsers cyberspace. Share this post to let your friends know about this thread.

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The tiny computer Raspberry Pi that costs $ 25

A few months ago had made its debut Raspberry Pi - tiny Linux computer for $ 25 that was designed to make devices that require programming more accessible, and with potential for use everywhere, from school to home. The possibilities are many when you consider that it can handle 1080p video and graphics, while David Braben (board member of the Raspberry Pi Foundation) said in an interview with Edge that he considers the Pi more than the popular Quake III Arena . The Foundation believes that the easy to use, but expensive devices such as modern PC and game consoles have made users less willing to experiment with computers.Their purpose is to create a cheap and small (about the size of a credit card) device that opens the door to people who otherwise could not learn how computers work.The device has a processor 700MHz ARM, RAM 128MB or 256MB depending on model, HDMI and RCA outputs, SD port, and a current through a 5V Micro USB connection. It is designed to be connected to the TV, and covers all daily operations of a normal PC. After five years of development and planning, it seems Raspberry Pi will soon be available to the public after production begins next month.

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