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Data Storage

DDR3 RAM Explained 200

Das Capitolin sends us to Benchmark Reviews for an in-depth feature on DDR3 memory that begins: "These are uncertain financial times we live in today, and the rise and fall of our economy has had [a] direct [effect] on consumer spending. It has already been one full year now that DDR3 has been patiently waiting for the enthusiast community to give it proper consideration, yet [its] success is still undermined by misconceptions and high price. Benchmark Reviews has been testing DDR3 more actively than anyone. ... Sadly, it might take an article like this to open the eyes of my fellow hardware enthusiast[s] and overclocker[s], because it seems like DDR3 is the technology nobody wants [badly] enough to learn about. Pity, because overclocking is what it's all about."
Handhelds

Researcher Discusses iPod Supercomputer 108

schliz writes to mention that in a recent interview with ITNews researcher John Shalf explained the purpose and some of the technical details of the newly-announced "iPod supercomputer." "Microprocessors from portable electronics like iPods could yield low-cost, low-power supercomputers for specialized scientific applications, according to computer scientist John Shalf. Along with a research team from the US Department of Energy's Lawrence Berkeley National Laboratory, Shalf is designing a supercomputer based on low-power embedded microprocessors, which has the sole purpose of improving global climate change predictions."
Data Storage

Retrieving Data From Old Amstrad Floppies? 323

Jeppe Utzon writes "Back in 1987, when I was a teenager in high school still, I spent most evenings, nights and weekends writing small programs in BASIC on my Amstrad CPC 6128. Some of these programs were simple games, some drew graphics, some could help me with math or train me in French — and most were utterly pointless. But I never had as much satisfying fun as when writing those programs — even if no one in my family understood any of it when I proudly displayed the fruits of three sleepless nights of labor. Now, 20 years later, I still have a sealed pack of about 15 disks with all my work on them (along with a few of my favorite games) and I was wondering if it was possible to get the data out somehow so that I could run it in emulation on my Mac. I know of the emulators, but have no clue what would be needed to extract the data — or if it is even extractable after all these years. I realize the chances of the data still being intact are quite low, but I'd like to give it a shot. So if anyone has any pointers it would be greatly appreciated." A large hurdle will be finding a drive to read the Amstrad disks at all.
Communications

A Scooter With Everything (For Certain Values of Everything) 74

An anonymous reader writes "The folks over at Thought Lab have produced an extremely high-density mobile computing platform in a scooter and have been kind enough to teach us all how to make our own! The end result was a rolling system capable of long-distance war driving, GPS navigation, Skype calls on the road, serving as an Internet hot spot or a low-power pir8 radio station, as well as recording your favorite TV program so you don't miss Lost because you are lost. If that's not over the top enough, you can actually drive your scooter to, say, the Grand Canyon, plug in your electric guitar and perform live over the Web at a whim!"
Data Storage

Data Recovered From Space Shuttle Columbia HDD 274

WmHBlair writes "Data recovered from a 400MB Seagate hard drive carried on the Space Shuttle Columbia has been used to complete a physics experiment performed on the mission in space. The Johnson Space Center sent the recovered drive to Kroll Ontrack in Minneapolis, Minnesota. Considering the shape the drive was in (see picture in the linked article), it could indeed qualify for the 'most amazing disk data recovery ever.'" Update: 05/08 12:51 GMT by T : Reader lucas123 points out a piece at Computerworld with a series of photos of the recovered drive.
Education

Books On Electronics For the Lay Programmer? 335

leoboiko writes "I'm a computer scientist and programmer with no training whatsoever in hardware or electronics. Sure, we designed a simple CPU (at a purely logical level) and learned about binary math and whatnot, and I can build a PC and stuff, but lately I've been wanting to, you know, solder something. Make my own cables, understand multimeters, perhaps assemble a simple robot or two. Play with hobbyist-level electronics. How does one go about educating oneself in this topic? I've been browsing Lessons in Electric Circuits online and it's been helpful, together with Misconceptions About 'Electricity' which went a long way in helping me finally to grok what electric charge and power actually are. I've reached the point where I want an actual dead-tree book, though. Any recommendations?"
Hardware Hacking

Hacking Canon Point-and-Shoot Cameras 242

Pig Hogger writes "If you're stuck with a cheap Canon point-and-shoot camera and have feature envy over the neighbor's sophisticated latest model, fret not! According to this LifeHacker article, the CHDK project allows nearly complete programmatic control of cheap Canon point-and-shoot cameras, enabling users to add features, up to and including games and BASIC scripting."
Communications

Dan Rutter Suggests Tossing Some Wi-Fi At the Neighbors 225

A few days ago, Dan Rutter (the Dan in "Dan's Data") published an interesting idea for extending the sort of philanthropic technical pranksterism that spawned throwies by applying the same approach to Wi-Fi. That means, looking what he hopes is not too far down the road, creating Wi-Fi repeaters that are cheap enough to deploy on the sly and frugal enough with power to run on solar power or cheaply replaceable batteries. But as he says, "If you've got a lot of spare money, a ladder and no respect for private property, though, you could already be stealthily deploying Open-Mesh or other such gadgets all over your neighbourhood." In some cities at least, you'd be hard pressed to ever avoid at least one available wireless access point, but that's not the experience for most people, most places -- which bears correction.
Hardware Hacking

MiniOn ARM Microcontroller Programming System 75

profdc9 writes "For the past six months or so I have been working on the MiniOn, a network enabled microcontroller programming system, similar in idea to the Basic Stamp and Arduino hobbyists are fond of, but it is programmable and accessible through a Web browser and TELNET, requiring no installed development software. It uses the cheap, readily available LPC2000 ARM7TDMI micrcontrollers, and the easy to interface Microchip ENC28J60 for ethernet. The MiniOn firmware is written using only the free WinARM development tools (Linux tools work also) for those who wish to improve the MiniOn. I have already implemented an MP3 streaming server and a web-based graphical oscilloscope in MiniOnBasic. The MiniOn should hopefully lower the barriers and costs to getting started learning about embedded systems, and provide a non-proprietary method of data acquisition."
Hardware Hacking

Reducing the Power Consumption of Overclocked PCs 119

babyshiori writes "Now, that must sound pretty inane. After all, overclockers employ all kinds of power-guzzling methods to improve their CPUs' overclockability. However, there are many good reasons to do so. In this guide, we will not just look at theoretical tips on reducing power consumption in overclocked PCs, we will also look at how well they work in real-life situations. Best of all, we are shown why they will improve our PCs' power efficiency without any real loss in performance. Start doing your part in saving the planet now!"
Hardware Hacking

Macbook Air Internal EVDO Broadband Card Mod 68

Sastira writes "Jordan Bunnell has successfully modded his Macbook Air to use an internal EVDO Broadband card. In order to make everything fit, he had to sacrifice the WiFi and bluetooth cards, but considering the portable nature of the laptop, it is a small price to pay for being truly wireless." (You'll need to scroll down past the sketchy-looking top section of that page.) Sastira also links to this InsanelyMac forum thread on the mod.
Hardware Hacking

OQO Hacker Claims World's Smallest OS X Machine 202

TechRadar writes "A hacker has turned his OQO ultraportable into the world's smallest Mac running Leopard. 'I will warn you this project is not for the plug and play crowd but definitely do-able,' the hacker, 'TRF' says. Interesting, given the OQO was designed by ex-Apple employees." It might run Mac OS X, but one thing this OQO is not is a Mac.
Hardware Hacking

Is Cheap Video Surveillance Possible? 700

timholman writes "After a series of burglaries and auto break-ins in my neighborhood, I'm thinking about adding some video security cameras to my home. To me, the object isn't just deterrence — if someone tries to break into my house or my car (parked on the street in front of my house), I'd like to provide a high-quality image of the perpetrator to the police. Inexpensive video surveillance systems, with their atrocious image quality, are nearly useless. The problem is being able to get good image quality at an affordable price. After some research, I've decided that using network cameras to FTP images to a central server over a HomePlug network is the best solution. However, good megapixel network cameras (e.g. Stardot or Axis cameras) can easily cost more than $1,000 each. Has any of you dealt with a similar situation? Is there any way to get reasonable quality (preferably open source) daytime and nighttime video surveillance equipment for home use without paying an arm and a leg? Is it better to go with a couple of expensive cameras, or a multitude of inexpensive cameras? Is paying two to three thousand dollars simply unavoidable if I want to monitor my front and back yards?"
Hardware Hacking

WiiMan, the Nintendo Wii Super Hero 46

rafaelmizrahi writes "WiiMan the Super Hero is a full action figure costume of a super hero that functions as a Nintendo WiiMote remote. Having trouble playing Wii? WiiMan to the rescue. This GarageGeeks project combines Gaming, Technology and Useless Activity to the extreme. Rafael Mizrahi, an artificial vision and experience explorer at Feng-GUI and a GarageGeeks member along with Yael Hertzog built this custom costume that acts as a fully functional Nintendo WiiMote remote with buttons, bluetooth, accelerometers, and an IR cam. BTW, last year, they built another hero, The Guitar Hero Noid, a robot built with Tal Chalozin that plays the PlayStation game Guitar Hero." (You might have better luck reaching the GarageGeeks site's Google cache.)
Math

Building a 5-Ton Calculator From 19th-Century Plans 218

alphadogg writes "Starting in May, many will have the opportunity to see computing done the old-fashioned way: with lots of gears, a big crank, and some muscle. The Computer History Museum in Mountain View, CA, will unveil a new construction, the first in the US, of the 19th-century British mathematician Charles Babbage's Difference Engine No. 2, an improved version of his earlier design for a mechanical digital calculator. It weighs in at two tons more than the Difference Engine built in 1991 at London's Science Museum. Microsoft millionaire Nathan Myhrvold commissioned and paid for the US model."
Hardware Hacking

Can You Access Your Own Cash Register Data? 178

jeronimo989 writes "A customer of mine has a small shop and asked me to look for an electronic cash register. One of the requirements is to retrieve the sales data from the cash register in some accessible format so he can import it in the software of his choice (which happens to be OpenOffice), either by downloading the data on a Flash card, connecting a laptop via USB, or even via a direct modem connection. As far as the cash register itself is concerned, he doesn't need anything too fancy; any 'entry level' machine for small businesses is probably OK (as long as it keeps an electronic journal, of course). Which options do we have? Are there cash register manufacturers out there that allow accessing the sales data directly in an open format? Does anyone here have experience with setting up a link between a cash register and PC, preferably using free/open source solutions?"
Hardware Hacking

Asetek LCLC Takes Liquid Cooling Mainstream 118

bigwophh writes "Liquid cooling a PC has traditionally been considered an extreme solution, pursued by enthusiasts trying to squeeze every last bit of performance from their systems. In recent years, however, liquid cooling has moved toward the mainstream, as evidenced by the number of manufacturers producing entry-level, all-in-one kits. These kits are usually easy to install and operate, but at the expense of performance. Asetek's aptly named LCLC (Low Cost Liquid Cooling) may resemble other liquid cooling setups, but it offers a number of features that set it apart. For one, the LCLC is a totally sealed system that comes pre-assembled. Secondly, plastic tubing and a non-toxic, non-flammable liquid are used to overcome evaporation issues, eliminating the need to refill the system. And to further simplify the LCLC, its pump and water block are integrated into a single unit. Considering its relative simplicity, silence, and low cost, the Asetek LCLC performs quite well, besting traditional air coolers by a large margin in some tests."
Security

NXP RFID Cracked 111

kamlapati sends us to EETimes for news that the Chaos Computer Club in Germany and researchers from the University of Virginia have cracked the encryption scheme used in a common RFID chip, NXP's Mifare Classic. According to the article the device is used in many contactless smartcard applications including fare collection, loyalty cards, and access control cards. NXP downplays the significance of the hack, saying that that model of RFID card uses old technology and they do a much better job these days.
Security

Griefers Assault Epileptics Via Message Board 621

An anonymous reader tips us to a story up at Wired reporting on what may be the first computer attack to inflict physical harm on victims. Last Saturday, griefers posted hundreds of bogus messages on the support forums of the nonprofit Epilepsy Foundation that used JavaScript and strobing GIFs to trigger migraines and seizures in users. For about 3% of the 50 million epileptics worldwide, flashing lights and colors can trigger seizures. "'I don't fall over and convulse, but it hurts,' says [an IT worker in Ohio]. 'I was on the phone when it happened, and I couldn't move and couldn't speak.' ... Circumstantial evidence suggests the attack was the work of members of Anonymous, an informal collective of griefers best known for their recent war on the Church of Scientology. The first flurry of posts on the epilepsy forum referenced the site EBaumsWorld, which is much hated by Anonymous. And forum members claim they found a message board thread — since deleted — planning the attack at 7chan.org, a group stronghold."

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