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Graphics

Submission + - Nvidia Launches GP-GPU Products: Tesla

unts writes: Graphics chip manufacturer Nvidia has launched a new range of products aimed squarely at using the massively parallelised architecture of GPUs for non-graphical computing tasks. Beyond3D takes a look at Tesla, and has interviews with Dave Kirk and Andy Keane who have been working on the project. From the article: 'The basic unit of the current Tesla line, the Tesla C870, should be very familiar to anyone who's seen the GeForce 8800. It's essentially an 8800 GTX — a 575MHz core clock and 128 SPs at 1.35GHz — with 1.5GiB of GDDR3 RAM. Of course, it's not quite an 8800 GTX — there are no display outputs at all on the card'
Communications

Submission + - Has Motorola finally had its day?

Joseph Munter writes: A recent CNET article names the five cell phones that changed the world. Three of the phones in the story are Motorola made handsets — the DynaTAC, StarTAC and Razr V3. But given the past ingenuity and success of Motorola, it has just cut around 4000 jobs in an attempt to fight off increasing competition. Has the company that started the cell phone revolution finally had its day?
Software

Submission + - Open source's hottest 10 apps (part 2) (itwire.com.au)

davidmwilliams writes: "This story walks through the top five most active open source projects on SourceForge today. It explains what they do and why they're useful. Most of these will be new to most people but all are definitely busting with potential. Check this story out to see just what the hottest SourceForge projects are why they matter. http://www.itwire.com.au/content/view/13085/53/"
Operating Systems

Submission + - Top 10 Linux Commands for Absolute Newbies (pimpyourlinux.com)

Dan the man writes: "Are you interested in moving to Linux, but have no idea how the terminal works? Are you used to commands like "dir" in dos, but have no idea how to do them in Linux? Well, then this is the site for you. If you've just started University Computing Science, or if you've just started Linux on your job, this is a great guide to get you started with the basic commands."
HP

Submission + - problem in scp(secured ftp)

jaty writes: "Hi!I am trying to scp a file which should be automated. For that i have written a script and calling it through crontab in Unix(HP/UX). Now while calling that script(which contains the scp command) is prompting for a password(which is known to me).but how can i automate that?i.e whether it is possible to give the password automatically?"
Supercomputing

Submission + - The largest commercial Linux installation

Gary writes: "Almost all movie studios primarily use Linux for animation and visual effects, but with more than 1000 Linux desktops and 3000 Server CPU's Dreamworks Animation is the largest commercial Linux installation. At the desktop, Dreamworks uses HP xw9300 workstations running RHEL 4 and the renderfarm uses HP DL145 G2 servers, with 2GB per core the servers have 8GB of RAM as they have 4 cores. Solid support for threading, NFS and LAMP toolsets are a few of the advantages with Linux."
Mozilla

Submission + - Mozilla exec claims Apple is hunting open source

Rob writes: Apple chief Steve Jobs expects to do more than lure Internet Explorer users to Apple's forthcoming version of Safari for Windows — he envisions a duopoly within the browser market at the expense of FireFox and others, according to Mozilla COO John Lilly. Lilly pointed to a pie graph representing the browser market that Jobs showed at last week's Apple developers' conference. The graph was made up with just two browsers: Safari and Internet Explorer. The graph "betrays the way that Apple, so often looks at the world," Lilly said. "But make no mistake: this wasn't a careless presentation, or an accidental omission of all the other browsers out there, or even a crummy marketing trick," he said. "Lots of words describe Steve and his Stevenotes, but 'careless' and 'accidental' do not. This is, essentially, the way they're thinking about the problem, and shows the users they want to pick up."
The Media

Submission + - First Video Game Ban For a Decade In The UK

Novotny writes: The Guardian is reporting that Manhunt 2, from — predictably enough, Rockstar Games — has been banned by the British Board of Film Classification (BBFC), the first such action taken in 10 years. The last game to be banned was Carmageddon, a ruling which was subsequently overturned. Rockstar have 6 weeks in which to appeal the decision.
United States

Submission + - Climate stations may be recording bad data

Nephilium writes: A former TV weatherman is surveying the 1,221 climate measuring stations in the USA. In the two weeks since the project was started, they've gotten surveys of 50 of the sites. At at least 10 of the stations, there were issues that would cause the temperatures to be measured higher then the actual temperature. These elements range from being placed near a large parking lot, to air conditioning exhaust, to a barrel used to burn trash, to jet exhaust. This data is used by scientists studying climate change, isn't it important to at least make sure the measuring stations providing data are sending accurate data?
Data Storage

Submission + - Just how delicate are modern hard drives?

RedBear writes: "Recently I've been researching the idea of setting up a computer system like the Mac mini on small to medium-size boats, for use as on-board entertainment centers and/or computer navigation systems. One of my main concerns has been figuring out whether the hard drive will need to be replaced with solid-state media in order to be completely reliable. Having been conditioned by various information sources over the years to treat a spinning hard drive like a baby made of eggshells, I was surprised to find many "car PC" enthusaists commenting in forums that they've had absolutely no problems using desktop hard drives in moving vehicles for years. I've also been surprised to find very little information about or mounting systems for "ruggedizing" hard drives for mobile use, besides some references to sticking a bit of rubber between the drive and the mounting frame, which really seems inadequate. So I'm left wondering, just how delicate is the modern hard drive, really? Are they hardier than I've always been led to believe? Is a modern hard drive ever actually likely to die from just being bumped around a bit, or do they usually die nowadays for other, more mysterious reasons?

Here's the scenario: A small boat (15-35ft) traveling on choppy or rough seas at various speeds can encounter several different kinds of motion, and that motion can shift very suddenly from going in one direction to going in a perpendicular or opposite direction. With the wrong hull design, cruising speeds or wave crest spacings, resonant vibrations can develop that can practically shake your teeth out of your head at times. Go over a big wave the wrong way and you can find yourself doing a belly-flop or nose-dive a dozen or more feet down into the trough behind it, with a nice resounding thump. Again entirely dependent on hull design and angle of incidence, but the harder you hit the water, the harder it hits back. Then there is the lovely continuous rocking (technically, pitching) and rolling that never really stops when you're in unprotected waters, and can vary from -85 to 85 degrees from one moment to the next. I can't imagine any of this motion being good for any kind of hard drive.

Now, a computer like a laptop or the Mac mini has a notebook-size 2.5" hard drive, which by all accounts will be more resistant to G-force shocks than a typical desktop-size 3.5" hard drive. I've read that this is mostly because of their use of "ramp load/unload" technology, where the drive head never touches the platters. Recently some desktop hard drives have started to use this ramp loading technology, so does that mean those desktop drives will be just as shock-resistant as notebook drives, or is the size difference also important? And just how motion resistant are the notebook drives, in a practical outside-the-testing-lab sense?

Some laptops and even drives these days also have motion sensors that will trigger the drive to park the heads during excessive movement, like when a laptop gets pulled off a table onto the floor. I have to guess on this but I'm suspecting these motion sensing systems would get triggered far too often, possibly interrupting the computer during important read or write activities, at best causing a performance hit and at worst crashing the system if it happens too often. So this doesn't seem like the ultimate solution for a drive that may be affected by nearly continuous strong G-forces.

Is anyone here experienced with building systems like this? I'm not talking about a typical car-PC traveling around on mostly paved city streets, I'm talking about a system that will stay functional and reliable while strapped in the back of a racing pickup while it goes through a thousand-mile off-road race through the Mojave desert. Does any company make mounting systems specifically for this kind of use, or is it totally nonsensical to expect any hard drive to survive under such conditions? My Google-fu may not be the best in the world, but I can usually ferret out what I'm looking for, and I've found basically zilch on ruggedized hard drives or mounting systems for either hard drives or computers in high G-force environments.

Keep in mind, one of my main goals is to keep costs as low as possible, so it would be interesting but pointless to discuss commercial solutions that cost a small fortune. The available specialized marine computer systems I saw seem to be designed for large commercial vessels and are horrendously expensive. We aren't talking about military clients here, just regular people who happen to live and/or work on boats. I just want to be able to take a regular computer and make a few ehancements that would allow it to be used on a boat reliably for years under any possible circumstances. Thus one of the main problems with solid-state media, it would cost 3-5 times as much to get 1/10th to 1/5th of the storage capacity, and that's comparing it to notebook hard drives. 160GB notebook HDD = $110, 16GB UDMA CompactFlash card = $300. With desktop hard drives the cost vs. capacity gap widens even further.

This is even more of a problem because one of the main advantages to using a system like the Mac mini would be its ability to run Windows in a virtual machine for access to a lot of Windows-only navigation, mapping/charting and GPS software as well as Windows-only drivers for GPS hardware, while still having access to the great stability and usability experience of Mac OS X, including the multimedia aspects like gigs of music and MP4/DivX rips of movies. The most recent versions of Parallels Desktop and VMware Fusion both have snapshotting and reversion capabilities which would make it incredibly simple for non-technical users to recover from Windows software glitches while out at sea, and keep their software navigation systems working under almost any circumstances. But installing multiple operating systems (and keeping backups) and having access to all those multimedia files means you need plenty of disk space. For most people, obtaining an adequate amount of solid-state storage to really replace a 100+ gigabyte hard drive would be very cost-prohibitive.

If you were tasked with "ruggedizing" a computer system for use under similar circumstances, how would you go about it? How would you make a mounting system to protect a computer from G-forces that may sometimes be the equivalent of, let's say, being dropped on a carpeted floor from about desk height, over and over again? I don't think a couple of rubber feet will be quite enough, and I'm very interested in hearing ideas on simple padding and suspension systems that could isolate a computer from this level of G-shock. A bungie-cord type suspension system would probably just exacerbate the bouncing motion. It would need to be something different, something that would really dampen sudden motion rather than reacting to it. My only idea so far is complicated, probably expensive, and has something to do with counterweights, pulleys, copper tubing and neodymium magnets. Alternatives are welcome, as are any comments pointing out that I'm being ridiculous for thinking computers are so delicate. Am I? Please back up any such statements with references, of course."

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