Graphics

Are nVidia's SLI Cards Worth the Investment? 98

aendeuryu asks: "So there's a lot of buzz right now about nVidia's SLI architecture, which allows for two video cards to be placed in tandem PCI-express sockets on the same motherboard to share processing. Based on the relatively low price of a PCIx 6600GT, and the promise of it dipping further, it would seem like a good idea to invest in one and an appropriate motherboard, so that one can upgrade later, right? So, for anybody who's actually got the setup at home, have SLI cards shown themselves to be worth the investment?"
Communications

VoIP for Deployed Soldiers? 362

rickbassham asks: "With VoIP really catching on these days, I decided to look into it for keeping deployed soldiers in touch with family and friends. I am currently a soldier in Iraq, and have the ability to get satellite-based internet, thanks to a few of the locals. While individually it is prohibitively expensive, a group of soldiers can come together to purchase a decent-to-high-speed internet connection. One of my plans is to link other soldiers to Vonage or another VoIP provider, so they will be able to keep in touch. Understanding the latency issues with VoIP via satellite (not to mention the other disadvantages), what upload speed does Slashdot recommend as a minimum for a QoS enabled connection for about 15-20 soldiers? The same for a non-QoS connection? What recommendations do you have for a good VoIP provider?"
Hardware

Turnkey Linux RAID Solutions? 110

Total-Gig-Age asks: "I want to buy an expandable RAID system for home storage of large media files (music, film, and photo). I'm absolutely unwilling to rely on optical discs (bit rot, not always online) and un-RAID-ed hard drives (unsafe: if it fails, you're screwed). The thing is, I don't have time to shop for and configure a RAID system myself, and I want a turnkey solution that will just work out of the box. I'm aware of Apple's XServe, but $6000 for 1 TB is just too expensive. What are my best options if I want to buy an open source system that I can maintain and upgrade if need be? Any recommendations on a full set of components, so that I don't have to spend a week shopping? Trustworthy online companies? Can I trust a local store to do it for me? Is it better to keep the server as a separate machine? Finally, how much should I expect to spend if I want something that doesn't suck (for 1TB say)? I can find plenty of info on how to set up RAID on the Internet, but I just want to be told what to buy so I can get on with other things, even though I could probably handle setting the whole thing up myself if I had to."
Data Storage

Object-Oriented 'Save Game' Techniques? 229

GreyArtist asks: "I took a course in C++ a year ago in which the instructor claimed that global (file-scope or inter-file-scope) variables were antiquated and not to be used under any circumstances. I immediately thought of a counter argument that involved the method I use for saving game data. The games (and many of the other programs) I write use not only global variables, but consecutive global variables declared in their own separate module. To save the game (or user settings) to file, I simply save a single large segment of data that contains all the necessary information. How do other coders do it? Would they create a 'MyObject.savemyself()' method for every object in their game? Do they save all the game code along with the data? Either way, it seems like a horrid case of code (or data) bloat. What do you die-hard object-oriented fanatics have to say about this, and what method they would you use for saving games?"
Businesses

Advice for a New Software Project Manager? 63

Tom O'Neill asks: "I have recently been promoted to 'Manager of Software Development' at the small business I work for. I have been developing web-based software professionally for about 6 years. I have seen the software development cycle work and I have seen it fail. Are there any project managers out there with some advice for a green horn like myself? Are there any books or other reading material that I could read in order to manage a software project effectively?"
Education

Technology to Help with Learning Disabilities? 330

GotSanity asks: "I have a little brother who is now 18 and still can not read or do basic math. At an early age he was diagnosed with a level 10 mental handicap. I am curious as to what technology is available to help teach him to read. The major problems with most educational software I have found is that they both cater to younger minds (even though he has a learning disability he still is involved with everyday teenager activities like video games and music) and are often far to expensive for a working class family. I originally got him a copy of Typing of the Dead, and through it he has been learning to read and spell better. What novel education ideas can the Slashdot community suggest?"
Linux Business

Windows to Linux Migration in the Enterprise? 92

youngerpants asks: "There is a lot of talk at the moment about migrating applications from WIN32 to Linux. This certainly helps move the OSS movement along, however, the true test of Linux is in the enterprise. Whereas we can move applications, how can the enterprise itself (such as Active Directory to Open LDAP, Exchange Server to Sendmail and NTFS to Samba) be moved. Have Slashdot readers used any applications or followed any strategies to migrate their enterprise? How would you tackle an obviously risky migration?"
Graphics

Reverse Engineering of a Graphics Format? 62

Jimbo God of Unix asks: "I recently purchased a color laser (Samsung CLP-500) because it claimed to have Linux compatibility. It does, mostly. However, I was irritated to find that the drivers are proprietary (splc, Samsung Printer Language - Color) and somewhat cranky to get working. I was hoping to find some good resources on reverse engineering the graphics format used to drive the printer. I've managed to mostly dissect the file format, so I think I can get the graphics data out, but I don't really know how to proceed to the next step. Are there any good resources for figuring out how to reverse engineer the graphics format? Are there any tools out there that will help me analyze the format (other than hexdump) or tell me if it's close to something else so I don't have to do as much work?"
Programming

x86 Assembly on Mac OS X 156

Quicksilver31337 asks: "I am currently taking an Assembly course which requires that I be able to compile ASM for the intel x86; however, I am stubbornly a Mac user. Having no desire to switch from my Powerbook, what can I do to work with, compile, and run x86 ASM short of running VirtualPC?" While Mac OS X does use gcc and its associated tool-chain, an old Slashdot discussion seems to imply that cross-compiling is better under OpenDarwin than Mac OS X. Has anyone tried cross-compiling under both operating systems? If so, what suggestions on setting up a working tool-chain do you have?
Software

Open Source Batch Management? 37

Asgard asks: "My employer is currently running a commercial batch management platform. Unfortunately the licensing model makes it unfeasible to run it in the development / testing environments, leading to poor usage of the tool and unexpected failures in production. I'm looking for an equivalent Open Source tool and am wondering how others have approached the problem. Does Slashdot have any suggestions?" Imagine a system like cron, but with job dependencies. Are there any batch systems out there like this?
Microsoft

Number of People Involved in Your Linux Distro? 76

MerlinTheGreen asks: "I read a recent interview with Microsoft's Nick McGrath in which he claimed, 'There a myth in the market that there are hundreds of thousands of people writing code for the Linux kernel. This is not the case; the number is hundreds, not thousands.' This annoyed me a little as it perpetuates the idea it is Linux rather than the distribution that, in Microsoft-speak, would represent the value proposition. Recognizing that it's the distro that really counts, I wondered how many people were involved in mine. My answer is that, for FC3, I found 16921 unique e-mail address just by running a simple script over /usr/share/doc. What other estimates are there for the number of people who are involved in your distribution, and what method did you use to come up with that number?"
Education

Low Tech Gutenberg? 108

Peace Corps Guy asks: "I have a friend who recently left for a two year Peace Corps stint in Mozambique. While there she has limited access to electricity, no technology, and not a lot to do with her 'off' time. She's a big literature fan, and many of us here at home would like to send a care package - but how best to ship pieces of free online text like Project Gutenberg to a developing nation? We can print it (high shipping and printing costs), print it very small and ship her a high quality fresnel lens (awkward), or put it all on a cheap PDA, which would be a high theft risk en route and in situ. High shipping costs on weight and volume are another major limiting factor. What alternative solutions can Slashdot readers suggest for shipping a freely available byte-stream to someone without a computer?"
The Almighty Buck

Dealing with Extended Warranty Vendors? 144

edg176 asks: "I am wondering about other people's experiences with getting Extended Warranty service. I bought a laptop at Microcenter. Got the top of the line extended warranty. Laptop died. I sent it in for service, and the outside repair place, MicroMedic, claims they can't fix it, and the actual warranty administrator is separate from the repair place -- way out in Florida! My warranty says I can get a full refund of my purchase price if the warranty people can't find me an equivalent laptop. They can't, because Microcenter no longer carries the sharp ultralight laptops. Dealing with warranty administrator people, Warrantech has been a nightmare. They won't let me speak to a manager and they keep jerking me around. So far, I've gotten them to agree to give me 1200 bucks store credit, which is still 500 bucks shy of the purchase price. Is it worth fighting them for the last 500 bucks? Does anyone have success stories or tips for this situation? Should I just take the 1200 and be happy I got that much?"
Media

Death of the Album? 154

panth0r asks: "I know that a simple search for ' death of the album' will give you about 2000 finds of personal websites and their owner's opinions of what is to come of the music industry. Of course I can't resist the chance to ask Slashdot for their take on the issue, so here it is: Do you think the traditional music album is dying out because of advances in technology?"
The Almighty Buck

Helping IT Save Money ... and Jobs? 606

An anonymous reader asks: "I work in a small, overworked and understaffed IT department at a profitable business. We recently got the news that we needed to cut costs. While every penny counts, simply turning off the computers at night and saving pennies on processor cycles isn't exactly a noticeable savings. I'm curious what measures other Slashdot readers have taken to save money within their IT departments."
Wine

What Linux Distribution is the Best for Games? 178

CodeGeekGuy asks: "I've been thinking of doing the big switcheroo from Windows to Linux. I have, in the past, had various levels of success using Linux, but I generally have to give up as soon as I feel like playing a game. I've done dual booting before, but find it a pain if you're waiting for something to finish and just want a quick game of Half Life 2 or WoW. I'm willing to give this another shot (as I hear that Cedega plays HL2 and WoW quite nicely). I've used Mandrake and Fedora Core and even Redhat, is there another distribution out there that is the best distro to use to get Cedega (and ultimately games) to work well? "
Robotics

Best Webcam on a Budget for Linux? 42

Garak asks: "Webcams seem to be hit and miss for a combination of image quality, light sensitivity and price. Lately I've been mostly missing looking for a webcam to use on my mobile telerobot that I'm building for my thesis project. I require a webcam that will produce an acceptable picture under normal office lighting without breaking my shoe string budget. So Slashdot, what is the best value in a low cost, Linux compatible webcam?"
Printer

Finding a Reliable Laser Printer? 181

SpottedKuh asks: "Perhaps the days of sturdy laser printers are over, or perhaps it is just my bad luck. I've recently been the proud owner of two paperweights: First, an HP LaserJet 1100, which continually misfed papers and smeared toner. After selling that printer, I foolishly purchased a LaserJet 1012, not realizing just how poorly it played with my BSD systems. Naturally, I've learned my lesson about checking LinuxPrinting.org; but, more than that, I'm gun-shy about purchasing yet another printer to replace my current LaserJet. I look at one of my friends who has had a LaserJet 4P for probably around ten years, and it's still going strong. Are the days of such quality gone, or am I just looking in the wrong places?"
The Almighty Buck

What Do You Charge for Tech Support? 1168

war3rd asks: "Years ago I used to offer tech support for friends and family (for free), and ended up doing it for everyone they and I knew. I cut it out because it was taking too much of my time, but I've been getting more and more requests lately due to everything from viruses, spam, spyware, as well as aging PC with Windows 98 and ME (oog!) on them still. I was thinking of saying OK to requests that are convenient, but I want to make it worth my while. So I ask, I'm sure that some of you out there must do this, what is the general going rate for basic user tech support (i.e. getting someone's home machine cleaned up and back to normal email & web browsing capability)?"
The Internet

Dealing with Deep-Linking to Your Online Photos? 139

Pig Hogger asks: "I've had my own hobby website since 1993, and over the years it has expanded to be quite a reference for the domain I am covering (some pro websites list it as additional reference, and so does Wikipedia. Google page-ranks it amongst the top). Every so often, I peruse the logs, most especially looking at the referrers to see where people come from, and once in a while, I notice that some webloggers deep-link to an image on my site. I do not mind too much when it's on-topic, but when it's not *AND* it's sucking-up bandwidth, I tend to be irked. Or worse, when you can't go look at the referring page without registering on the weblog site. In those cases, I change the picture filename (and the corresponding webpage that calls it), and I substitute a smaller (and most often, naughty) picture. What other tricks those of you are facing the same problem have to address this problem?"

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