Stories
Slash Boxes
Comments
typodupeerror delete not in

Slashdot is powered by your submissions, so send in your scoop

Comments: 61 +-   Australia's CSIRO To Launch CPU-GPU Supercomputer on Monday November 23, @04:40AM

Posted by timothy on Monday November 23, @04:40AM
from the ready-for-duke-nuken-forever dept.
supercomputing
bennyboy64 contributes this excerpt from CRN Australia: "The CSIRO will this week launch a new supercomputer which uses a cluster of GPUs [pictures] to gain a processing capacity that competes with supercomputers over twice its size. The supercomputer is one of the world's first to combine traditional CPUs with the more powerful GPUs. It features 100 Intel Xeon CPU chips and 50 Tesla GPU chips, connected to an 80 Terabyte Hitachi Data Systems network attached storage unit. CSIRO science applications have already seen 10-100x speedups on NVIDIA GPUs."
Read More... 61 comments story

Comments: 60 +-   Modded UX490 UMPC Shows Off Years of Community Development on Monday November 23, @01:27AM

Posted by timothy on Monday November 23, @01:27AM
from the soldered-on-a-new-warranty-too dept.
handheld
An anonymous reader writes "The community at www.MicroPCTalk.com have spent the last few years devising all sorts of mods and tweaks for the Sony VAIO UX-series UMPC. Now they've thrown nearly all of their major breakthroughs into one machine. Using the latest UX model (UX490) as the base, the original SSD has been swapped for a speedy 128GB SSD, the CPU has been unsoldered from the mobo and replaced with a Core 2 Duo U7700 (making this probably the smallest computer to use said CPU). The original EDGE module has been removed, and carefully put in its place is an E169 Huawei terminal which provides up to 7.2mbps 3G (HSDPA), voice and texting. On top of this, the unit quad-boots Mac OS X, Windows 7, Windows Vista, and Windows XP (and the Huawei terminal works under Mac OS X as well)."
Read More... 60 comments story

Comments: 148 +-   Colossus 3.5-in SSD Combines Quad Controllers on Sunday November 22, @01:12PM

Posted by Soulskill on Sunday November 22, @01:12PM
from the going-for-the-gusto dept.
storage
Vigile writes "The new Colossus SSD comes in capacities starting at 256GB and going all the way up to 1TB in a standard 3.5-in hard drive form factor. This larger size was required because the drive actually integrates not one but four Indilinx SSD controllers and three total RAID controllers in a nested RAID-0 array. All of this goodness combines to create an incredibly fast drive that beats most other options in terms of write speeds and is competitive in read tests as well. Using some custom 'garbage collection' firmware, the drive works around the fact that TRIM commands aren't supported in RAID configurations to maintain high speeds through the life of the SSD."
Read More... 148 comments story

Comments: 78 +-   UAVs Go Green With Fuel-Cell Powered "Ion Tiger" on Sunday November 22, @01:23AM

Posted by timothy on Sunday November 22, @01:23AM
from the kinder-and-gentler-and-more-dangerous dept.
power
Hugh Pickens writes "Increasingly, the military is deploying unmanned aerial vehicles, or UAVs, as eyes in the sky to scan the ground for targets and threats, especially for missions that are too dangerous for manned aircraft. Now Live Science reports that a new robotic spy plane called 'Ion Tiger' will harness alternative energy to make it more covert and longer lasting than battery-powered or engine-powered UAVs. A 550-watt, 0.75 horsepower hydrogen fuel cell will power the Ion Tiger with four times the efficiency of a comparable internal combustion engine and seven times the energy of the equivalent weight of batteries. When Ion Tiger took flight in October, it exceeded any demonstration of electrically powered flight so far, flying 23 hours and 17 minutes. 'And it carried a 5 lbs. payload to boot — enough to carry, say, a day-and-night camera,' says researcher Karen Swider-Lyons, head of the alternative energy section at the Naval Research Laboratory in Washington. 'No one has come close to flying 24 hours with a significant payload before.' Another big advantage is the Ion Tiger's reduced noise, heat and emissions. 'Think about lawnmowers or chainsaws — they're really loud,' says Swider-Lyons. 'It's hard to spy on people when they know you're there, so you had to fly them at high altitudes to keep them from being heard.'"
Read More... 78 comments story

Comments: 273 +-   Berkeley Engineers Have Some Bad News About Air Cars on Saturday November 21, @02:31PM

Posted by timothy on Saturday November 21, @02:31PM
from the puff-the-magic-dragon-was-involved dept.
transportation
cheeks5965 writes "We've argued before over compressed air vehicles, a.k.a. air cars. Air cars are an enchanting idea, providing mobility with zero fuel consumption or environmental impacts. The NYTimes' Green Inc. blog reports that the reality is less rosy. New research from UC Berkeley and ICF International puts a period at the end of the discussion, showing that compressed air is a very poor fuel, storing less than 1% of the energy in gasoline; air cars won't get you far, with a range of just 29 miles in typical city driving; and despite appearing green the vehicles are worse for the environment, with twice the carbon footprint as gasoline vehicles, from producing the electricity used to compress the air. Given these barriers, manufacturer claims should definitely be taken with a grain of salt."
Read More... 273 comments story

Comments: 604 +-   Response To California's Large-Screen TV Regulation on Friday November 20, @10:55AM

Posted by kdawson on Friday November 20, @10:55AM
from the i-want-my-i-want-my dept.
earth
An anonymous reader writes "It's great that unelected bureaucrats in California are clamoring to save energy, but when they target your big-screen TVs for elimination, consumers and manufacturers are apt to declare war. CEDIA and the CEA are up in arms over this. Audioholics has an interesting response that involves setting the TVs in 'SCAM' mode to meet the energy criteria technically without having to add additional cost or increase costs to consumers. 'In this mode, the display brightness/contrast settings would be set a few clicks to the right of zero, audio would be disabled and backlighting would be set to minimum. The power consumption should be measured in this mode much like an A/V receiver power consumption is measured with one channel driven at full rated power and the other channels at 1/8th power.' This is an example of an impending train wreck of unintended consequences, and many are grabbing the popcorn and pulling up chairs to watch."
Read More... 604 comments story

Comments: 313 +-   Intel Says Brain Implants Could Control Computers By 2020 on Thursday November 19, @06:12PM

Posted by timothy on Thursday November 19, @06:12PM
from the phalanges-are-fine-thanks dept.
biotech
Lucas123 writes "Scientists at Intel are working on developing sensors that would be implanted in a person's head in order to harness brain waves that could then be used to control computers, televisions, cell phones and other electronic equipment. Intel has already used Functional Magnetic Resonance Imaging (FMRI) machines to determine that blood flow changes in specific areas of the brain based on what word or image someone is thinking of. People tend to show the same brain patterns for similar thoughts. 'Eventually people may be willing to be more committed ... to brain implants. Imagine being able to surf the Web with the power of your thoughts.' said Intel research scientist Dean Pomerleau."
Read More... 313 comments story

Comments: 302 +-   Synchronize Data Between Linux, OS X, and Windows? on Thursday November 19, @04:30PM

Posted by timothy on Thursday November 19, @04:30PM
from the please-be-more-specific dept.
storage
aaaaaaargh! writes "I'm using a laptop with Ubuntu 8.04 for work, a netbook with Ubuntu 9.10 when I'm outside, Mac OS X 10.5 for hobby projects, and Windows XP for gaming. For backups, I'm currently using Jungle Disk and Apple's Time Machine, and I use a local svn repository for my work data. Now I need to frequently exchange and synchronize OpenOffice and Latex files and source code in various cross-platform programming languages between one machine and another. Options range from putting everything online (but Jungle Disk disks seem to be too slow for anything else than backup), storing my data on external media like USB sticks or SD cards, or working with copies by synchronizing folders over the network. I don't want to give my data away to some server outside without strong encryption (controlled by me, including the source code) and external media like USB sticks are a bit too fragile according to my taste. The solution should be reliable, relatively failsafe, as simple as possible, and allow me to continue to use Jungle Disk for backup. So what would you recommend?"
Read More... 302 comments story

Comments: 261 +-   Building a 32-Bit, One-Instruction Computer on Thursday November 19, @02:12PM

Posted by timothy on Thursday November 19, @02:12PM
from the some-things-weren't-meant-for-post-its dept.
programming
Hugh Pickens writes "The advantages of RISC are well known — simplifying the CPU core by reducing the complexity of the instruction set allows faster speeds, more registers, and pipelining to provide the appearance of single-cycle execution. Al Williams writes in Dr Dobbs about taking RISC to its logical conclusion by designing a functional computer called One-Der with only a single simple instruction — a 32-bit Transfer Triggered Architecture (TTA) CPU that operates at roughly 10 MIPS. 'When I tell this story in person, people are usually squirming with the inevitable question: What's the one instruction?' writes Williams. 'It turns out there's several ways to construct a single instruction CPU, but the method I had stumbled on does everything via a move instruction (hence the name, "Transfer Triggered Architecture").' The CPU is implemented on a Field Programmable Gate Array (FPGA) device and the prototype works on a 'Spartan 3 Starter Board' with an XS3C1000 device available from Digilent that has the equivalent of about 1,000,000 logic gates, costing between $100 and $200. 'Applications that can benefit from custom instruction in hardware — things like digital signal processing, for example — are ideal for One-Der since you can implement parts of your algorithm in hardware and then easily integrate those parts with the CPU.'"
Read More... 261 comments story

Comments: 296 +-   Smart Grid Could Pose Threat To Privacy on Wednesday November 18, @08:26PM

Posted by samzenpus on Wednesday November 18, @08:26PM
from the lets-take-a-look dept.
power
Presto Vivace writes "Brian Krebs of the Washington Post reports on a study jointly released Tuesday by the Ontario Information and Privacy Commissioner and the Future of Privacy Forum. It seems that in the process of collecting all that feedback about energy use, utility companies will inevitably collect a great deal of information about us. From the article: 'Instead of measuring energy use at the end of each billing period, smart meters will provide this information at much shorter intervals, the report notes. Even if electricity use is not recorded minute by minute, or at the appliance level, information may be gleaned from ongoing monitoring of electricity consumption such as the approximate number of occupants, when they are present, as well as when they are awake or asleep. For many, this will resonate as a "sanctity of the home" issue, where such intimate details of daily life should not be accessible.'"
Read More... 296 comments story

 
I don't kill flies, but I like to mess with their minds. I hold them above globes. They freak out and yell "Whooa, I'm *way* too high." -- Bruce Baum