Posts Tagged 'microchip'

Artwork From Electronic Components

ThisIsColossal reports that Leonardo Ulian, is an artist who carefully solders a myriad of computer components, circuitry and microchips to create these precisely symmetrical mandalas. The straight lines and symmetry may not be everyone’s cup of tea, but the choice of media is certainly unusual.

Check out more pics of the work HERE

 

Advertisements

Inexact CPU Makes Errors With Increased Efficiency

Rice University announced work on a computer chip that is intentionally not 100% accurate, that gains efficiency through these errors. Although, I can imagine some applications where this may be acceptable, but it seems to be a bad idea, in general.

Researchers have unveiled an “inexact” computer chip that challenges the industry’s 50-year pursuit of accuracy. The design improves power and resource efficiency by allowing for occasional errors. Prototypes unveiled this week at the ACM International Conference on Computing Frontiers in Cagliari, Italy, are at least 15 times more efficient than today’s technology.

The concept is deceptively simple: Slash power use by allowing processing components — like hardware for adding and multiplying numbers — to make a few mistakes. By cleverly managing the probability of errors and limiting which calculations produce errors, the designers have found they can simultaneously cut energy demands and dramatically boost performance. One example of the inexact design approach is “pruning,” or trimming away some of the rarely used portions of digital circuits on a microchip. Another innovation, “confined voltage scaling,” trades some performance gains by taking advantage of improvements in processing speed to further cut power demands. In their initial simulated tests in 2011, the researchers showed that pruning some sections of traditionally designed microchips could boost performance in three ways: The pruned chips were twice as fast, used half as much energy and were half the size. In the new study, the team delved deeper and implemented their ideas in the processing elements on a prototype silicon chip. “In the latest tests, we showed that pruning could cut energy demands 3.5 times with chips that deviated from the correct value by an average of 0.25 percent,” said study co-author Avinash Lingamneni, a Rice graduate student. “When we factored in size and speed gains, these chips were 7.5 times more efficient than regular chips. Chips that got wrong answers with a larger deviation of about 8 percent were up to 15 times more efficient.”

Continue reading HERE

 

US Navy’s Bargain Hunting Is A Costly Mistake – Counterfeit Chips From China Could Disable Weapons

BusinessInsider reports –

Last year, the U.S. Navy bought 59,000 microchips for use in everything from missiles to transponders and all of them turned out to be counterfeits from China. Wired reports the chips weren’t only low-quality fakes, they had been made with a “back-door” and could have been remotely shut down at any time. If left undiscovered the result could have rendered useless U.S. missiles and killed the signal from aircraft that tells everyone whether it’s friend or foe. Apparently foreign chip makers are often better at making cheap microchips and U.S. defense contractors are loathe to pass up the better deal. The problem remains with these “trojan-horse” circuits that can be built into the chip and are almost impossible to detect — especially without the original plans to compare them to.

Continue reading HERE.

 

 


Archives

Enter your email address to follow this blog and receive notifications of new posts by email.

Join 690 other followers

Advertisements

%d bloggers like this: