Power

Sensibly Powering DC Technology? 90

splatnet asks: "Having upgraded my PC to a Mac Mini all my IT kit is now DC. The Mini, my flatscreen, external USB HDD, USB DVD writer, JBL speakers, ADSL/Wireless Router. I have practically the same amount of space taken up for transformers as I do computer equipment! Has anyone found/invented a way to power multiple DC devices (all with slightly different power requirements)? I'm thinking in terms of space/convenience/running costs etc." It would be neat if there was a DC power source that could be tuned to a specific voltage, as well as modular plugs to fit your various devices. Is there anything out there that comes close?
Wireless Networking

Bluetooth on an Airplane? 145

bblazer asks: "Since I travel quite a lot, I am very familiar with the warnings about cell phone use on an airplane (could be bunk, but I still respect it and those around me). But what about using Bluetooth? I just got off an Alaska Airlines flight where the flight attendant said that we were not permitted to use any device that sends or receives a radio signal. I often use the bluetooth features of my PowerBook and Treo while onboard a plane (you can have the Treo on without having the cell phone on), or I set up a mini-network with others I may be traveling with. Could Bluetooth cause any problems, or is this something I need not worry about?"
Robotics

Robotics/Electronics Class - How Would You Do It? 58

MainerDood asks: "I have been teaching programming and networking at the high school and collegiate levels for several years, and now I am branching out into electronics and robotics for my high school students. I am keen on Linux and Open Source solutions where feasible, and would like to avoid using pre-packaged robotics/electronic 'kits' (ie: Lego Mindstorm). I have a minimal budget, like to tinker and have access to tons of old PCs... I would like to use them in these projects and buy the 'parts' where needed. I am envisioning an order of breadboards, diodes, resistors, etc. but not sure from where I should order, what a good basic startup setup should contain and resources I should refer too. I have found a bunch of links online and various resources, but I am curious to know how you would go about this... seasoned veterans and electronics/robotics enthusiasts - I am all ears!"
The Internet

Providers Ignoring DNS TTL? 445

cluge asks: "It seems that several large providers give their users DNS servers that simply ignore DNS time to live (TTL). Over the past decade I've seen this from time to time. Recently it seems to be a pandemic, affecting very large cable/broadband and dial up networks. Performing a few tests against our broadband cable provider has shown that only one of the three provided DNS servers picked up a change in seven days or less. After turning in a trouble ticket with that provider - two of the three provided DNS servers were responding correct - while the third was still providing bad information more than two weeks after that specific change. What DNS caches ignore TTL by default? Is there a valid technical reason to ignore TTL?"
Security

Retail Theft Detectors and False Alarms? 230

NichardRixon asks: "All too often I set off the 'shoplifter alarm' when leaving a major department store in my area, after purchasing OTC medicine. Even though I make a point of watching the cashier 'clear' the boxes, it is evidently an imprecise process. As often as not the alarm goes off as I leave, and the security person wants to look through my bag and compare what's found with my reciept. People passing by give me the evil eye, evidently assuming that I've been caught stealing. This has happened so so many times that my new policy is to refuse to stop for the search, telling the gaurd that they will have to tackle me, and of course they just let me go. Shouldn't stores be required to use more reliable equipment?" What's worse is that there are many retailers that are just plain apathetic to the alarm. What's the point of having these detectors if all they are is continuing source of false alarms? What good will they be when they catch a real theft in progress and no one reacts properly because of their questionable history?
Communications

What Makes a Good Design Document? 461

dnnrly asks: "I've been writing software professionaly for a couple of years now for more than 1 company and I've noticed a recurring pattern: I get put on a new project that already has a bit of history and I get told to read the design documents and then implement XYZ. What happens is I read the document, find that it gives me a lot of information about certain aspects of the system we are building, but leaves huge gaps in others. We're going to be rewriting some of the procedures very soon and I'll be able to influence the software side so I wanted to ask Slashdot readers what sort of things have they seen in design documents that they've liked/thought are a good idea? What have they found works and what doesn't? If all else fails, where's a good place to find all this stuff out?"
AMD

Best Motherboard for a Large Memory System? 457

kimanaw writes "Due to a particular infrastructure need, and increasing OS support for 64 bitness, I'm looking into building a large memory server box (at least 16 gigs, possibly up to 64 gigs, probably config'ed into a big ramdisk). I only need a single CPU, and just minimal disk; most prebuilt systems w/ large memory seem to focus on more CPus and big RAID, all of which (over)inflate the pricetag. I've searched several websites (including Tom's Hardware), and I've googled, but can't seem to locate any commercially available AMD MBs supporting more than 4 sticks of RAM, or 4 gigs. Have any Slashdotters built a big-RAM server? Any pointers, hints, and tips much appreciated."
GUI

Programming Language for Corporate UI Research? 115

Daniel Wigdor asks: "I'm a PhD candidate doing an internship at a major American UI research lab. They distribute an input/output hardware device to research labs, along with a Java API for the development of 'concept pieces' (here's an example from a university). Java was chosen because it was simple, and seemed, at the time, to be the language of choice for UI researchers in both the corporate and academic worlds. There is now pressure to switch from Java to C#, since they don't have the resources to maintain an SDK for both. We're not at all concerned with system performance, since this is only for concept-development: it's really just about accessibility for newcomers to the hardware. Given that, what would the community advise by way of a choice between Java and C#?"
It's funny.  Laugh.

Promoting Webcomics? 69

krf asks: "Have any other Slashdot readers ever tried to get a webcomic off the ground? What promotional tricks have you used? I've been doing my strip for a couple of months now. Traffic is good, but not great. I think that most of my visitors are friends or people who heard of the site via word-of-mouth. I'm looking for ways to bring the strip to a larger audience. I've submitted links to most of the big webcomics pages, but a lot of the 'top 100'ish lists seem pretty tacky - kind of like linking pyramid schemes. I've paid for some very targeted advertising, but not many people click on ads any more. I've even tried getting in to local print outlets, with very limited success. I enjoy writing and drawing the strip, but it's always nice to know that other people are reading it. I'd appreciate any advice Slashdot readers might have to offer."
Data Storage

Short Lifetimes of Optical Drives? 369

lpq asks: "I have various optical disc readers from standard DVD players (apart from a computer), and both CD and DVD readers on one or more computers. My home stereo DVD's have been problematic for a while. One of them won't even take a DVD cleaner disk as it doesn't 'recognize' it as a playable disc, even though it plays discs that my other DVD player won't play. Usually, between the two of them, I can play most discs, but occasionally some discs, purchased new, won't play on either of them. Heaven forbid if it is an older or used DVD which have even more problems (some of my DVDs are approaching old age at an age of around 5 years). However, this is more about my computer's optical drives, including the CD readers. Both CD readers on two different computers have 'died' and are not able to read program disks. Am I specifically plagued by bad luck or do others go through CD/DVD drives so quickly?"
Games

Genre-Defining Games? 231

Gamasutra has up responses from its frequent feature, the question of the Week. This week's question was a call for the best of the best. "For any genre of your choice, what is the game that defines that genre for you?" From the article: "For the RPG, simply Final Fantasy 6. It has the best story, greatest variety of characters, tons of different music, and added many secret areas. It was the first game to truly to define a real experience of an RPG to the player. -Anonymous" What games would you refer to as Genre Defining?
Communications

Free ASL Computer Technology Resources? 21

AceCaseOR asks: "I work in the computer lab at a community college. In the past I've worked with students who are deaf or mute, and, as I didn't know American Sign Language, I've had to resort to using pen and paper, with occasional gesture. As right now my mother is learning American Sign language, I'm learning some myself. I'm looking for free resources on computer terminology for American Sign Language. Any assistance that can be offered would be appreciated."
Graphics

Microsoft's Channel9 Adds Ink to Forums? 23

An anonymous reader asks: "Microsoft's Channel9 forums now support handwritten and hand-drawn comments. The ink comments are displayed as GIF images so anyone can see them, but to add your own message you must use IE and either a Tablet PC or have the Tablet PC SDK installed. Apparently Microsoft is going to make the source code available for the new feature so other sites can add ink support too. Will we be seeing more ink enabled forums in the future, or is Channel9's ink a novelty that will soon be forgotten?"
Mozilla

Does Adblock Violate A Social Contract? 1043

almondjoy writes "Newsforge is currently running a story on Firefox extensions where the author states the following regarding use of the AdBlock extension: 'If you use this tool ... there are those who would assert you are not holding up your end of a 'social contract' between yourself and the Web site that you are browsing' Would you be volating a social contract hitting the 30sec skip button on Tivo? Or putting a strip of paper across the bottom of our TV screen to block out those super annoying scrolling banners? I have found that using the combination of AdBlock and FlashBlock extensions in Firefox has greatly enhanced my browsing experience. Has acceptance of web sites crammed with advertising content become part of my social contract with society?"
Security

Network Penetration Scans and Executive Reaction? 434

LazloToth asks: "I'm sure some of you have had this happen: your company pays the big bucks for a 3rd-party security audit and, when it comes back, you get called on the carpet for all the supposed 'holes' in your network. When you see the report, you recognize that it comes from a well-known open-source security scanner, and that the 'holes' in question are so obscure as to be meaningless. I told our risk management VP that to fix every item cited - - many of which were false positives or completely out of context - - would be next to impossible for our small IT staff, and that some of the fixes, if implemented, might have deleterious effects on an otherwise smoothly running operation. How do you handle these 3rd-party security people who make mountains out of every molehill?"
Windows

Improving the Windows XP User Interface? 265

Pimpin' Up Windows asks: "Many of us are forced to live with Windows XP for our day-to-day computing needs - at work, home or school - and longingly look to the not only beautiful, but functional and efficient, Mac OS X 'Aqua' user interface. Apart from just themes, what would be Slashdot reader's suggestions for improving the user interface of XP? What changes, add-ons and other improvements could further enhance its usability?"
Music

Which Lossless Audio Codec, and Why? 131

deadsquid puts forth a worthy follow up question to last week's query on audio codecs: "I'm about to re-rip my entire CD collection for the fourth time. I don't want to do it again, so have decided to invest in a small(ish) array and use a lossless codec to create a reference set of my music. From the reference, I plan on transcoding to a variety of bitrates (depending on where the final product will end up) and whichever format of the week suits the device(s) the transcoded content will ultimately sit on. I don't particularly care about encoding time, but would like something that transcodes nicely to MP3, WMA, OGG, and other formats in a reasonable length of time. I would like to ensure that track metadata is maintained in the reference, and is easily transferable when transcoded. I also want something that's not proprietary to an individual's or small group's whims. I'm thinking FLAC, but was wondering if other people had better experiences with other codecs. If you were to use a lossless encoding format, which would you use, and why?"
Displays

Obtaining Used LCD Parts? 46

davebarz asks: "With LCDs having already passed several generations and become affordable for the average user, one would think the biggest question would be which LCD to buy. But what about for geeks with no budget and no desk space... for instance, college kids? As friends' LCD monitors stop working due to particular components such as inverters or backlights, it's hard to resist trying to take their panel off their hands and try to fix it for oneself. There's nothing difficult about changing backlights or inverters, but after getting just such a monitor from a girlfriend, I've found that it's nearly impossible to find parts. The actual LCD panel works fine, so why throw out a $400 monitor when all it needs is a $30 power inverter? So, my question is, to where should one go to find out exactly what part one needs and then buy a suitable replacement? Specifically, I'm in the market for an inverter for a Gateway FPD1730. The inverter appears to be an Ambit model, but they're no help since they're exclusively OEM. Can Slashdot provide me with any help?"
Networking

Prioritized Internet Sharing for Home Users? 47

precursor asks: "Like many of you, I share a house with a couple of other geeks. This is normally a hoot - until it comes time for bandwidth sharing on a single cable modem (it's hard to play games with a bunch of torrent junkies). What solutions have other Slashdot readers implemented for sharing or limiting certain types of bandwidth on a home network? We are especially interested in solutions that we could implement on an aging PC or on hardware that can be purchased on a budget."
Security

How to Prevent IP Theft by Your Own Employees? 236

Cursed by USB asks: "We are a small software startup based in India. Recently one of our employees was caught trying to steal our IP (work) from a computer using a USB thumb drive. While all the staff computers are devoid of floppy drives, cd writers and internet connections, we simply cannot disable the USB ports since there are a lot of USB enabled peripherals that we use. Apart from trying to hire "trustworthy" people, are there any other bright ideas that Slashdot readers might have in this regard to help prevent such theft from workplace?"

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