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Hardware Hacking

Grad Student Invents Cheap Laser Cutter 137

An anonymous reader writes "Peter Jansen, a PhD student and member of the RepRap community, has constructed a working prototype of an inexpensive table-top laser cutter built out of old CD/DVD drives as an offshoot of his efforts to design an under $200 open-source Selective Laser Sintering (SLS) 3D printer. Where traditional laser cutters use powerful, fixed-focus beams, this new technique dynamically adjusts the focal point of the laser using a reciprocating motion similar to a reciprocating saw, allowing a far less powerful and inexpensive laser diode to be used. The technique is currently limited to cutting black materials to a depth of only a few millimeters, but should still be useful and enabling for Makers and other crafters. The end-goal is to create a hybrid inexpensive 3D printer that can be easily reconfigured for 2D laser cutting, providing powerful making tools to the desktop."

Submission + - Which Certifications are the best/most marketable? 3

MattSausage writes: "As an I.T. Supervisor in a distribution center for ten years I was responsible for everything from purchase and setup of various servers, to AS400 systems, from network switches to phone switches, not to mention the help desk was also my territory. I do have a bachelor's in CS, and plenty of experience, but finding myself back on the job market I only now realize I haven't gotten around to getting any certifications. So now I am working to get certified in various programs related to I.T. My question is which ones have the Slashdot community found to be the most desirable? Are Cisco Certifications the way to go? MSCE? Others? I really am in the dark as I basically had my previous job straight out of college and never really examined the need for Certifications before. If it is related to the Information Technology field I'm interested."
Sun Microsystems

Submission + - What should a sys admin know in a job interview? 1

evil_aar0n writes: Management has asked me to conduct the technical portion of an interview for a candidate for Solaris Administrator. We run Solaris 2.6 for legacy stuff and Solaris 10 for the current product. I do the majority of the work, right now, but they want to bring in another person to help out. What sort of things should she know? What kinds of questions should I ask? I'm not looking to be a hard-azz, here, asking for esoteric — and mostly useless — knowledge, but I want to make sure this person doesn't sell us a load of bollocks. If it matters, we're in New York state. Also, I'd like to have this person perform some simple hands-on operations on a test machine — disconnected from the network, of course — so I can verify that they know what they're talking about. Is that legal? Is it considered "gauche"?

Submission + - SCO signs deal to avoid liquidation

An anonymous reader writes: Only moments before a hearing at which SCO would have faced conversion to Chapter 7 bankruptcy, the company signed a deal to sell off its UNIX assets. This last-minute act of desperation could potentially allow SCO to delay its demise.

And to carry on the good fight

I have nothing to add. The picture says it all.
The Internet

Submission + - Comcast to bring IPv6 to residential US in 2010 ( 7

darthcamaro writes: We all know that IPv4 address space is almost gone — but we also know that no major US carrier has yet migrated its consumer base either. Comcast is no upping the ante a bit and has now said that they are seriously gearing up for IPv6 residential broadband deployment soon.

"Comcast plans to enter into broadband IPv6 technical trials later this year and into 2010," Barry Tishgart, VP of Internet Services for Comcast said. "Planning for general deployment is underway."

United States

Submission + - Bill ready to ban ISP caps in the US

xclr8r writes: Ars has a story on Eric Massa a congressman representing a district in western New York has a bill ready that would start treating Internet providers like a utility and stop the use of caps. Nearby locales have been used as test beds for the new caps so this may have made the constituents raise the issue with their representative.

Submission + - Microsoft Backtracks, Extends XP For OEMs To 2011 (

CWmike writes: "Just hours after a noted research analyst criticized Microsoft's plans to limit sales of Windows XP PCs, the company said it would extend the aged operating system's lifespan in the post-Windows 7 world to as late as April 2011. On Tuesday, Michael Silver of Gartner blasted the company's decision, saying it would make it more difficult for companies to manage their PCs, and more expensive to upgrade them to Windows 7 down the road. Microsoft's new policy: 'Windows 7 Professional and Ultimate customers will have the option to downgrade to Windows XP Professional from PCs that ship within 18 months following the general availability of Windows 7 or until the release of a Windows 7 service pack, whichever is sooner, and if a service pack is developed,' a company spokeswoman said in an e-mail. 'This is good,' said Silver. '[But] still not great.' His concern is over the 'out' Microsoft gave itself. 'The new policy is 18 months or SP1 delivery, whichever is sooner,' he said. 'It means that if SP1 shows up in six or eight months, the date suddenly moves in.'"
The Internet

Submission + - Court Case Against VeriSign, .Com Monopoly Revived

netczar writes: According to a post by John Levine on CircleID and other sources, US Court of Appeals for the Ninth Circuit has reversed a lower court decision which threw out an antitrust lawsuit several years ago by Coalition for ICANN Transparency (CFIT) against VeriSign. Levine writes: "Back in 2005 an organization called the Coalition for Internet Transparency (CFIT) burst upon the scene at the Vancouver ICANN meeting, and filed an anti-trust suit against VeriSign for their monopoly control of the .COM registry and of the market in expiring .COM domains. They didn't do very well in the trial court, which granted Verisign's motion to dismiss the case. But yesterday the Ninth Circuit reversed the trial court and put the suit back on track."
Data Storage

Submission + - Best practices for fiber channel networks?

GaryOlson writes: "White papers and tech docs on fiber channel storage cover the basics such as creating aliases, zones, labeling cables, etc. But what about best practices and methods for nebulous operations like managing zonesets, VSANs, or port channel groups? Are these subjects too closely tied to a specific business operation or vendor technology to define best practices?"

Submission + - Unix Turns 40: Past, Present, Future Of The OS ( 1

CWmike writes: "In August 1969, Ken Thompson, a programmer at AT&T subsidiary Bell Laboratories, saw the month-long departure of his wife and young son as an opportunity to put his ideas for a new operating system into practice. He wrote the first version of Unix in assembly language for a wimpy Digital Equipment Corp. (DEC) PDP-7 minicomputer, spending one week each on the operating system, a shell, an editor and an assembler. 'A powerful operating system for interactive use need not be expensive either in equipment or in human effort,' colleague Dennis Ritchie and Thompson would write five years later. '[We hope that] users of Unix will find that the most important characteristics of the system are its simplicity, elegance, and ease of use.' Apparently they did. But after four decades (see the timeline), the future of the operating system is clouded. Gartner analyst George Weiss notes the pressures on Unix, saying, 'Linux is the strategic 'Unix' of choice.' Although Linux doesn't have the long legacy of development, tuning and stress-testing that Unix has seen, it is approaching and will soon equal Unix in performance, reliability and scalability, he says. However, a recent survey by Computerworld suggests that any migration away from Unix won't happen quickly."

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