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A better design can make integrated circuits smaller and faster

Researchers at the University of California at Los Angeles (UCLA), they can get circuits designed with 30 percent less wire length using an improved version of the optimization and showed that three years ago, based on representative stages of the most used. Researchers believe that when these methods can be applied to existing circuit that produces the electronics industry will generate similar benefits. For industry, even 5 percent is already very important.

"We are demonstrating that there is another way to achieve substantial improvements, with better design and more efficient architecture, "says Jason Cong, UCLA professor and professor of computer science who has worked for nearly a decade with Tony Chan, professor of mathematics in the form UCLA.La Traditional production of integrated circuits (also known as silicon chips) that are smaller and faster is to build ever-smaller transistors and thinner and thinner cables. Although the computer industry has made progressively smaller devices and improved Cong, Chan and his colleagues are refining the design of its own goal of the collaboration chip.Una is the development of silicon chips that are faster and cheaper, and consume less energy than today.

They think optimizing chip design is a very prometedora.Chan address and Eric Radke design algorithms to design software that improves the placement of some elements. Scientists hope the research will lead an improved software for enhanced chip design. Cong's laboratory has found clear evidence that existing software for integrated circuit design are far from óptimos.Chan and Radke are also working to minimize the amount of time it takes to pass a signal processor.

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Hard disk 500 GB Laptop Memory

The Hitachi announces Travelstar 5K500, the 500 GB hard drive for laptops.

is the largest unit capacity built so far in a 2.5-inch drive. It is expected that the first computer with this hard drive, hits the market in February this year, Taiwanese company Asustek announces that use two such units to create the first laptop with 1 terabyte capacity.

one year ago was available in capacities of 1 terabyte desktop computers or external storage systems.

According Hitachi, this drive is capable of storing 500 hours of digital video, 250 games, 125 000 4 minute songs, etc. Currently

larger hard disk capacity in the market for laptops is 320 GB, Western Digital Corp.

However it seems that this hard disk is larger (higher) than current hard drives, which not permit could be installed in laptops made so far and we must also take into account that seems to have sacrificed speed (hard disk spins at lower revs per minute) for the benefit of storage.

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electronic thousand times faster and able to retain data for one hundred thousand years

Ritesh Agarwal, Se-Ho Lee and Jung Yeonwoong have developed a self-assembling nanowire of germanium antimony telluride, a phase-change material that switches between amorphous and crystalline structures, the key to read and write computer memory. The fabrication of nanoscale devices, roughly 100 atoms in diameter, was performed without conventional lithography, the manufacturing process that uses a rather blunt harsh chemicals and often produces unusable materials with space limitations, size and efficiency.

Instead of conventional lithography, the researchers used self-assembly, a process in which chemical reactants crystallize at lower temperatures through the action of nanocatalysts metal to spontaneously form nanowires of 30-50 nm in diameter and 10 micrometers long, and then fabricated memory devices on silicon substrates.

The test results showed an extremely lower power consumption for data encoding (0.7 mW per bit). They have also shown that the writing, erasing and retrieval (50 nanoseconds) is a thousand times faster than conventional Flash memory. And even suggest that the device will not lose data after 100,000 years of use, all with the potential to realize non-volatile memory devices with densities of the order of terabits.

This new form of memory represents a potential revolution in the way we access and store information.

The phase-change memory in general, is characterized by a read / write faster, better durability and simpler construction compared with other technologies such as Flash memory. The challenge has been to reduce the size of phase change materials by conventional lithographic techniques without damaging their useful properties. The phase-change nanowires, as created by researchers at the University of Pennsylvania, provide a useful strategy to achieve new reports that provide an ideal control of stored data efficiently and lasting several orders of magnitude higher than current technologies.