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Are Quantum Computers On The Horizon?

March 18, 2016 by  
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Massachusetts Institute of Technology (MIT) and Austria’s University of Innsbruck claim to have put together a working quantum computer capable of solving a simple mathematical problem.

The architecture they have devised ought to be relatively easy to scale, and could therefore form the basis of workable quantum computers in the future – with a bit of “engineering effort” and “an enormous amount of money”, according to Isaac Chuang, professor of physics, electrical engineering and computer science at MIT.

Chuang’s team has put together a prototype comprising the first five quantum bits (or qubits) of a quantum computer. This is being tested on mathematical factoring problems, which could have implications for applications that use factoring as the basis for encryption to keep information, including credit card details, secure.

The proof-of-concept has been applied only to the number 15, but the researchers claim that this is the “first scalable implementation” of quantum computing to solve Shor’s algorithm, a quantum algorithm that can quickly calculate the prime factors of large numbers.

“The team was able to keep the quantum system stable by holding the atoms in an ion trap, where they removed an electron from each atom, thereby charging it. They then held each atom in place with an electric field,” explained MIT.

Chuang added: “That way, we know exactly where that atom is in space. Then we do that with another atom, a few microns away – [a distance] about 100th the width of a human hair.

“By having a number of these atoms together, they can still interact with each other because they’re charged. That interaction lets us perform logic gates, which allow us to realise the primitives of the Shor factoring algorithm. The gates we perform can work on any of these kinds of atoms, no matter how large we make the system.”

Chuang is a pioneer in the field of quantum computing. He designed a quantum computer in 2001 based on one molecule that could be held in ‘superposition’ and manipulated with nuclear magnetic resonance to factor the number 15.

The results represented the first experimental realisation of Shor’s algorithm. But the system wasn’t scalable as it became more difficult to control as more atoms were added.

However, the architecture that Chuang and his team have put together is, he believes, highly scalable and will enable the team to build quantum computing devices capable of solving much bigger mathematical factors.

“It might still cost an enormous amount of money to build, [and] you won’t be building a quantum computer and putting it on your desktop anytime soon, but now it’s much more an engineering effort and not a basic physics question,” said Chuang.

In other quantum computing news this week, the UK government has promised £200m to support engineering and physical sciences PhD students and fuel UK research into quantum technologies, although most of the cash will be spent on Doctoral Training Partnerships rather than trying to build workable quantum computing prototypes.

Courtesy-TheInq

Courtesy-TheInq

China Using Home Servers Admidst Cyber Concerns

November 5, 2014 by  
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A Chinese firm has developed the country’s first homegrown servers, built entirely out of domestic technologies including a processor from local chip maker Loongson Technology.

China’s Dawning Information Industry, also known as Sugon, has developed a series of four servers using the Loongson 3B processor, the country’s state-run Xinhua News Agency reported Thursday.

“Servers are crucial applications in a country’s politics, economy, and information security. We must fully master all these technologies,” Dawning’s vice president Sha Chaoqun was quoted as saying.

The servers, including their operating systems, have all been developed from Chinese technology. The Loongson 3B processor inside them has eight cores made with a total of 1.1 billion transistors built using a 28-nanometer production process.

The Xinhua report quoted Li Guojie, a top computing researcher in the country, as saying the new servers would ensure that the security around China’s military, financial and energy sectors would no longer be in foreign control.

Dawning was contacted on Friday, but an employee declined to offer more specifics about the servers. “We don’t want to promote this product in the U.S. media,” she said. “It involves propriety intellectual property rights, and Chinese government organizations.”

News of the servers has just been among the ongoing developments in China for the country to build up its own homegrown technology. Work is being done on local mobile operating systems, supercomputing, and in chip making, with much of it government-backed. Earlier this year, China outlined a plan to make the country into a major player in the semiconductor space.

But it also comes at a time when cybersecurity has become a major concern for the Chinese government, following revelations about the U.S. government’s own secret surveillance programs. “Without cybersecurity there is no national security,” declared China’s Xi Jinping in March, as he announced plans to turn the country into an “Internet power.”

Two months later, China threatened to block companiesfrom selling IT products to the country if they failed to pass a new vetting system meant to comb out secret spying programs.

Dawning, which was founded using local government-supported research, is perhaps best known for developing some of China’s supercomputers. But it also sells server products built with Intel chips. In this year’s first quarter, it had an 8.7 percent share of China’s server market, putting it in 7th place, according to research firm IDC.

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Intel Reveals 750 Series SSD

June 27, 2014 by  
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During the 3D Revolution 2014 presentation held in Rome, Intel has showed its updated SSD roadmap unveiling the new August Ridge SSD 750 Series which will be available in multiple form-factors, including lately popular M.2.

Spotted by Techpowerup.com, the Intel SSD 750 Series will be aimed at both the consumer and the professional market segments and be available in three form-factors, including 2.5-inch SATA 6Gbps, mSATA 6Gbps as well as the M.2 form-factor.

The new 750 SSD Series will most likely be available in all the popular capacities, up to 960GB, and be based on 20nm MLC NAND flash.

Unfortunately, the roadmap does not reveal many details regarding the performance of the SSD 750 Series but does note that it should launch in Q4 2014.

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Can Plastic Replace Silicon?

May 7, 2014 by  
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Can plastic materials morph into computers? A research breakthrough recently published brings such a possibility closer to reality.

Researchers are looking at the possibility of making low-power, flexible and inexpensive computers out of plastic materials. Plastic is not normally a good conductive material. However, researchers said this week that they have solved a problem related to reading data.

The research, which involved converting electricity from magnetic film to optics so data could be read through plastic material, was conducted by researchers at the University of Iowa and New York University. A paper on the research was published in this week’s Nature Communications journal.

More research is needed before plastic computers become practical, acknowledged Michael Flatte, professor of physics and astronomy at the University of Iowa. Problems related to writing and processing data need to be solved before plastic computers can be commercially viable.

Plastic computers, however, could conceivably be used in smartphones, sensors, wearable products, small electronics or solar cells, Flatte said.

The computers would have basic processing, data gathering and transmission capabilities but won’t replace silicon used in the fastest computers today. However, the plastic material could be cheaper to produce as it wouldn’t require silicon fab plants, and possibly could supplement faster silicon components in mobile devices or sensors.

“The initial types of inexpensive computers envisioned are things like RFID, but with much more computing power and information storage, or distributed sensors,” Flatte said. One such implementation might be a large agricultural field with independent temperature sensors made from these devices, distributed at hundreds of places around the field, he said.

The research breakthrough this week is an important step in giving plastic computers the sensor-like ability to store data, locally process the information and report data back to a central computer.

Mobile phones, which demand more computing power than sensors, will require more advances because communication requires microwave emissions usually produced by higher-speed transistors than have been made with plastic.

It’s difficult for plastic to compete in the electronics area because silicon is such an effective technology, Flatte acknowledged. But there are applications where the flexibility of plastic could be advantageous, he said, raising the possibility of plastic computers being information processors in refrigerators or other common home electronics.

“This won’t be faster or smaller, but it will be cheaper and lower power, we hope,” Flatte said.

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New USB Chip Developed

October 18, 2013 by  
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Silicon Motion says it has begun shipping samples of a new USB 3.0 controller chip for flash drives that could boost performance by up to 50%.

The company said the new SM3267 integrated controller is expected to deliver up to 160MB/s read, and 60MB/s write speeds through a single channel; that would be a 30% to 50% performance improvement over today’s USB 3.0 flash drive technology.

Even though the USB 3.0 specification has the capability to support 4.8Gbps throughput speeds, the speed of a USB 3.0-enabled flash drive is dictated by the speed of the accessing flash devices in the drive. Today, most consumer-USB 3.0 flash drives support about 100MB/s read speeds.

We are pleased to announce that SM3267 has received design-ins from most of our current USB controller customers, including many top-tier OEMs, and we expect SM3267-based USB 3.0 flash drives will be commercially available starting in the fourth quarter of 2013,” Wallace Kou, CEO of Silicon Motion, said in a statement.

The new integrated chip will also be able to run at lower voltages, from 5 volts to 1.2 volts, enabling a 25% to 30% lower USB flash drive device temperature compared with other USB 3.0 flash controller products in the market, Silicon Motion said.

The new IC will support the vast majority of NAND flash technology, including new triple-level cell (TLC), multi-level cell (MLC), high speed Toggle, and ONFI DDR NAND manufactured by Samsung, Toshiba, SanDisk, SK Hynix, Micron and Intel.

The new chip has already passed both USB-IF compliance testing and WHCK (Windows Hardware Certification Kit) tests for Windows 7 and Windows 8.

The new IC is available in a Chip-on-Board (COB) and in a 48-pin QFN green package.

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Stanford Develops Carbon Nanotubes

October 17, 2013 by  
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Researchers at Stanford University have demonstrated the first functional computer constructed using only carbon nanotube transistors.

Scientists have been experimenting with transistors based on carbon nanotubes, or CNTs, as substitutes for silicon transistors, which may soon hit their physical limits.

The rudimentary CNT computer is said to run a simple operating system capable of multitasking, according to a synopsis of an article published in the journal Nature.

Made of 178 transistors, each containing between 10 and 200 carbon nanotubes, the computer can do four tasks summarized as instruction fetch, data fetch, arithmetic operation and write-back, and run two different programs concurrently.

The research team was led by Stanford professors Subhasish Mitra and H.S. Philip Wong.

“People have been talking about a new era of carbon nanotube electronics moving beyond silicon,” Mitra said in a statement. “But there have been few demonstrations of complete digital systems using [the] technology. Here is the proof.”

IBM last October said its scientists had placed more than 10,000 transistors made of nano-size tubes of carbon on a single chip. Previous efforts had yielded chips with just a few hundred carbon nanotubes.

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Intel Launches 530 Series SSD

August 9, 2013 by  
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Intel’s new SSD 530 series was detailed a while ago, but now it is finally official. Intel has formally announced the new drives in three form factors: mSATA, M.2 and 2.5-inch.

The drives will be available in a wide range of capacities, starting at 80GB, through 120GB, 180GB, 240GB, 360GB and 480GB for 2.5-inch drives. As for M.2 and mSATA drives, they will be available in 80GB, 120GB, 180GB and 360GB capacities.

Intel’s new 530 drives are based on 20nm MLC flash and the brains behind the brawn come from LSI, in the form of the SandForce SF-2281 controller. Although transfer speeds will vary depending on capacity, the fastest 530-series drives will deliver read speeds of up to 540MB/s and write at 490MB/s. As for random performance, they boast 41k IOPS in random read and 80k IOPS in random write.

Intel also says the 530-series is its most power efficient storage product to date, which is hardly surprising, but it is good news for notebook vendors who will use mSATA units.

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Broadcom Goes UltraHD

January 16, 2013 by  
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As TV manufacturers show off UltraHD TVs at CES, communications chip maker Broadcom is introducing the guts of future gateways that will be able to deliver video for those sets into viewers’ homes.

Broadcom’s BCM7445 silicon platform, announced just hours before the show opened on Tuesday morning, will be able to process incoming video from cable, carrier and satellite services that has four times the resolution of typical 1080p video offered today, according to the company.

Like the eye-catching but expensive TVs on the show floor in Las Vegas, the BCM7445 is just one of the first of many steps to consumers watching UltraHD shows at home. New content, displays and delivery technologies will all be required for the new resolution, which is also known as 4K.

Broadcom expects its chip to be in volume production by the middle of next year, in time for mainstream UltraHD TVs that will probably hit the market for the late 2014 holiday season, said Joe Del Rio, associate product line manager at Broadcom. However, service providers, which will probably be the distributors of most of the gateways built with the BCM7445, may take longer to start sending UltraHD video to their subscribers, Del Rio said.

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SanDisk Hurt By Weak Demand, Supply Glut

April 10, 2012 by  
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Flash-memory maker SanDisk Corp warned that tepid demand from mobile phone manufacturers and a glut in supply that has led to lower prices are putting a dent its revenue margins.

The maker of NAND chips — used as storage memory in smartphones and tablets — has recently seen demand taper with some of its key customers scaling back orders.

Smartphones and tablets have caused a boom in NAND production, but SanDisk’s customers have not all done equally well from the explosion in mobile gadgets.

“Anybody who is not a Samsung or an Apple is burning through some (mobile) handset inventory,” RBC Capital Markets analyst Doug Freedman said.

“Until we get the PC market, tablet market and handset market back buying, we’ll see an oversupply situation.”

SanDisk’s weak outlook mirrors warnings from rival flash-memory makers, who have also blamed weak prices and demand for their disappointing results.

Late last month, Micron Technology said it was facing persistently low prices for memory chips and posted a wider loss. Toshiba Corp, Japan’s biggest chip maker, also posted a drop in quarterly sales at its electronics devices business, which includes semiconductors, hit by lower prices for memory chips.

SanDisk in January expressed concerns about weaker demand weighing on sales in the first half of this year and forecast lower-than-expected revenue for the first quarter.

The Milpitas, California-based company, which is set to report results later this month, said its gross margins for the January-March quarter will come in below its prior expectations of 39-42 percent, hurt by lower prices for its chips.

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DRAM Prices Going Up

April 7, 2011 by  
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iSuppli is reporting that global chip revenue should increase to $325.2 due to supply and demand.  Two months ago iSuppli originally forecasted a 5.8 percent increase to $320.1 billion.  Apparently, DRAM chips will be impacted the most with a price increase due to supply issues as a result of the recent earthquake in Japan.  iSuppli had originally forecasted sales of DRAM chips to shrink by four percent this year instead of seeing a drop of 10.6 percent.

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