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Researchers tout efficiency breakthrough with new 'inexact' chip
Accuracy is generally an important consideration in computer chips, but a team of researchers led by Rice University are touting a new "inexact" chip (dubbed PCMOS) that they say could lead to as much as a fifteen-fold increase in efficiency. Their latest work, which won a best paper award at a recent ACM conference, builds on years of research in the field from the university, and is already moving far beyond the lab -- some inexact hardware is being used in the "i-slate" educational tablet developed by the Rice-NTU Institute for Sustainable and Applied Infodynamics, 50,000 of which are expected to wind up in India's Mahabubnagar school district over the next three years. As for the chips themselves, their inexactness comes not just from one process, but a variety of different measures that can be used on their own or together -- including something the researchers describe as "pruning," which eliminate rarely used portions of the chip. All of that naturally comes with some trade-offs (less defined video processing is one example given), but the researchers say those are often outweighed by the benefits -- like cheaper, faster chips that require far less power.
Inhabitat's Week in Green: pencil-tip generators, the Nissan Leaf, and the world's largest wind turbine
Each week our friends at Inhabitat recap the week's most interesting green developments and clean tech news for us -- it's the Week in Green. This week we saw renewable energy take the world by storm as Spain announced plans to construct the world's largest wind turbine and a team of engineers made waves with plans for an underwater turbine modeled after whale flippers. We also saw Boeing shine light on plans to produce a new breed of ultra-efficient solar panels that are suited for space, while researchers in Japan developed a potent new kinetic generator that's as tiny as a pencil tip. Innovative eco transportation also picked up the pace as China rolled out plans to produce the first fuel cell powered light rail train and the world's largest solar-powered boat made its successful maiden voyage across the Atlantic. We also applauded the Nissan Leaf as it took first place as the European Car of the Year and we were wowed by Mercedes' next-generation concept car, which may one day be grown in a lab. We also showcased several new ways that technology stands to wire our lives -- starting with an electronic smart wallet that curbs spending by clamping shut like a clam. We also looked at Harvard's plans for a laptop computer powered by biogas and we were impressed by Nike's next-gen design tools for producing environmentally efficient clothes. Finally, we wrapped up the week with two exciting advances in tablet tech - India is testing a solar-powered I-Slate tablet geared at children in need and Substrata rolled out a gorgeous wooden iPad case that goes light on the earth.
Apple's 'iSlate' and other rumors that have given its stock a holiday boost
The Apple tablet rumors are at a fever pitch, yet again. Depending on what you've read, it's all but confirmed that the company's got a January 26th event scheduled at Yerba Buena Center for the Arts (YBCA) in San Francisco, CA. All this, of course, with nary a word or comment from Cupertino HQ, and without the context that this trend has come and gone ad nauseam, both with the tablet and before with the years of lead-up to the iPhone. Here's the latest bit: MacRumors has dug up information about a Delaware-based company, Slate Computing, LLC, that was founded in November 2006 and owns the trademark "iSlate," the signatory of said trademark being Apple's Senior Trademark Specialist Regina Porter. Given that Apple owns "iSlate" trademark in Europe and that it's allegedly pulled similar stunts with a "fake" company and the iPhone trademark, sure, we could buy into this being just a dummy corporation... but does it really confirm an impending tablet that'll be called the "iSlate?" Not at all. We wouldn't be surprised if Apple has done this for numerous other trademarks, either to give itself more options or to prevent others from trying to manufacture products under those names. (Slate Computing, LLC also happens to own the "Magic Slate" trademark, just so you know.) Also bought up in 2006? The domain iSlate.com, which again according to MacRumors (with help form Mark Gurman of AppleRejectedMe.com) was apparently and briefly shown to be owned by Apple at some point during 2007. Food for thought, but trust us, you don't want to confuse hearsay for concrete fact. Which brings us to December 24th, where we see a statistically significant uptick in Apple's stock value. Seeing as the fiscals were released back in late October along with the last refresh of hardware (Mac Pro specs notwithstanding), it seems everyone decided to spend their holiday bonuses on some Apple shares. Now, we're not claiming to be professionals here by any stretch of the imagination, but it seems a lot of the activity here can be attributed to the recent flux of rumors. Jason Schwarz of The Street has an interesting take on it, which if you've got 15 minutes to kill should be worth your time to browse through.
I-Slate's probabilistic chip-powered tablet PC for the OLPC set
Researchers have developed a solar-powered, WiFi, stylus-controlled tablet PC called I-Slate, which makes use of the probabilistic CMOS technology designed by Dr. Krishna Palem and his team at Rice University. Introduced to the world this week at the IEEE's 125th Anniversary event, the machine is designed to replace the old chalk slates apparently still used in some parts of the world (and on re-runs of Little House On The Prairie) with something that can download lesson plans and help children with their math, among other things. But this is just the beginning -- Dr. Palem and the gang are looking forward to the day when the chips find a home in all sorts of gadgets, from cellphones to televisions and beyond. Prototype slates should start making the rounds in India this spring.
