tunersedge writes "Yesterday I dug out of my parents' basement a PC they had bought brand new in 1984: Epson Equity I personal computer; 512K RAM; 82-key keyboard; 2 (count 'em!, 2) 5.25" floppy disk drives; 13' RGB monitor (with contrast/brightness knobs); handy on/off switch; healthy 25-year-old yellowed plastic; absolutely no software. (My mom ran a pre-school, and they used it to keep records and payroll. I cut my programming teeth on this thing. GW-Basic was my friend. Kings Quest screens took 2 minutes to load when you walked into a new one.) When I resurrected this machine I pulled the case off, dusted out a little, and plugged it in. It actually fired up! I'm stoked, except the disks we had are missing. What I'm looking to do is either buy some old working disks with whatever I can find (MS-DOS 3.22, GW-Basic, whatever), or try and recreate some using a USB-based floppy drive and some modern software. Has anyone tried to resurrect a PC this old before?"

LosManos writes "Which is the best programming mouse? Mandatory musts are wireless, and that it doesn't clog up like old mechanical mice. Present personal preferences are for: lots of buttons, since if I have moved my hand away from the keyboard I can at least do something more than move the pointer; sturdy feeling; not too light, so it doesn't move around by me accidentally looking at it." What would you recommend?

coondoggie writes "On a day when one of the largest wind farm plans bit the dust, the US Department of Energy is offering up a five-year, $45 million grant to design and build a large dynamometer facility for testing 5 to 15 MW rated wind turbines and equipment. The DOE says such a facility is needed as the US has fallen behind other countries in the race to build ever-larger wind turbines for energy production. According to the DOE, the average size of wind turbines installed in the United States in 2007 increased to roughly 1.65 MW. Additionally, turbines already developed range in the 2.5 MW to 3.5 MW capacity sizes; with plans being developed for even greater power ratings. The larger wind turbines have outpaced the availability of US-based testing facilities, the DOE stated."

Jon Morgan writes "Whilst heaving around numerous data storage systems to sell (they weigh A LOT!), we got to wondering: How heavy is a Petabyte of data storage? Our best guess is 365KG, which is 6 million times lighter than in 1980! But is there a lighter way to store a Petabyte?"

Bill Kendrick writes "My first computer was the short-lived 1200XL model of the Atari 8-bit computer line. I finally got ahold of one again, after having to settle with a lesser Atari system. My immediate reaction was: 'Damn, it's as big as my Dell Inspiron laptop!', and I couldn't resist doing one of those side-by-side comparisons, complete with photos of one system sitting atop the other. (I also put the 1983 storage and speeds in 2009 terms, for the benefit of the youngin's out there.) While in many ways the Atari pales in comparison to the latest technology they cram into laptops, I do get to benefit from SD storage media. It also still boots way faster than Ubuntu on the Dell, has a far more ergonomic keyboard, and is much more toddler-proof."

thecarchik writes with this interesting excerpt: "It takes a lot of energy to split hydrogen out from the other atoms to which it binds, either in natural gas or water. Which means energy analysts are skeptical about the overall energy balance of cars fueled by hydrogen. Ohio University researcher Geraldine Botte has come up with a nickel-based electrode to oxidize (NH2)2CO, otherwise known as urea, the major component of animal urine. Because urea's four hydrogen atoms are less tightly bound to nitrogen than the hydrogen bound to oxygen in water molecules, it takes less energy to break them apart."

schwit1 writes with this excerpt from an AP report: "Plans for the world's largest wind farm in the Texas Panhandle have been scrapped, energy baron T. Boone Pickens said Tuesday, and he's looking for a home for 687 giant wind turbines. Pickens has already ordered the turbines, which can stand 400 feet tall — taller than most 30-story buildings. 'When I start receiving those turbines, I've got to ... like I said, my garage won't hold them,' the legendary Texas oilman said. 'They've got to go someplace.' Pickens' company Mesa Power ordered the turbines from General Electric Co. — a $2 billion investment — a little more than a year ago. Pickens said he has leases on about 200,000 acres in Texas that were planned for the project, and he might place some of the turbines there, but he's also looking for smaller wind projects to participate in."

Linguo writes "Fusing human psychology with an advanced artificial intelligence engine, MyCyberTwin's virtual humans are being used by organizations like NASA and National Australia Bank to improve their customer support levels. MyCyberTwin technology is designed to allow almost anyone to build a virtual, artificial human — called a CyberTwin — which can handle such tasks as personalized customer support, client sales or even entertainment and companionship. CyberTwins can take the form of a clone of yourself, or a representative of your company, and they can live in almost any digital environment, including Web sites, virtual worlds, blogs, social network pages and mobile phones."

Cliff Bleszinski, design director for Epic Games, said in an interview with Develop that while motion control schemes like Project Natal look interesting, Epic will probably be sticking with classic controllers "for the foreseeable future." He said, "Microsoft came down a few weeks before E3 and gave us a demo, and they're now shipping out the dev kits; I think it's great. When you start combining the motion-capture, the facial recognition, and the vocal recognition you can create some unique experiences. And of course more accessibility is always a good thing. When you build an interface like that though you need to [specifically] design a game for it. It can't just be tacked on."

lee1 writes "A law in the US that is due to take effect in 2012 mandates such tough efficiency standards for lightbulbs that it has been assumed, until recently, that it would kill off the incandescent bulb. Instead, the law has become a case study of the way government regulation can inspire technical innovation. For example, new incandescent technology from Philips that seals the traditional filament inside a small capsule (which itself is contained within the familiar bulb). The capsule has a coating that reflects heat back to the filament, where it is partially converted to light. The sophisticated ($5.00) bulbs are about 30% more efficient than the old-fashioned ($0.25) kind, and should last about three times as long. So they are less economical than compact fluorescents, but should emit a more pleasing spectrum, not contain mercury, and, one supposes, present the utility company with a more desirable power factor."

Slatterz writes "Scientists from Israel's Technion University have unveiled a tiny robot, made using Micro-Electro-Mechanical Systems (MEMS) technology, purportedly able to crawl through a person's veins in order to diagnose and potentially treat artery blockage and cancer. The little robot — with a diameter of just one millimeter — has neither engine nor onboard controls, instead being propelled forward by a magnetic field wielded on it from outside the patient's body."

1sockchuck writes "It was a bad week to be a piece of electrical equipment inside a major data center. There have been five major incidents in the past week in which generator or UPS failures have caused data center power outages that left customers offline. Generators were apparently the culprit in a Rackspace outage in Dallas and a fire at Fisher Plaza in Seattle (which disrupted e-commerce Friday), while UPS units were cited in brief outages at Equinix data centers in Sydney and Paris on Thursday and a fire at 151 Front Street in Toronto early Sunday. Google App Engine also had a lengthy outage Thursday, but it was attributed to a data store failure."

Oracle Goddess writes "Sony filed a patent for a system where a camera can dynamically map any real world object for use in a video game. The patent states that the objects 'include items such as coffee mugs, drinking glasses, books, bottles, etc.' While these are given as examples, the object mapping system is not limited to those objects; it can identify any three dimensional object. The system looks similar to Microsoft's Project Natal, but instead of driving with an imaginary steering wheel, players can use an everyday item like a plate. Although this may seem a bit silly at first, the eventual uses for such a system could be wide-ranging and lead to novel and useful controllers for all sorts of systems and applications."

Well, the inevitable hacking of Apple's latest flavor of iPhone has happened. Named "purplera1n," the tool will only allow installation of unauthorized applications instead of a full unlock. "The purplera1n jailbreak will free your iPhone from the limitations imposed on it by AT&T and Apple. After jailbreaking, a user will be able to customize the iPhone with home-screen wallpapers and third-party ringtones. But the biggest advantage of jailbreaking is the support of unapproved apps such as iBlackList (blacklists and whitelists for contacts) and many others."

Tim O'Reilly wrote in Forbes a while back that he thinks the Kindle only has another two or three years of life left, unless Amazon wises up and embraces open standards. He came to this conclusion, in part, because of his experience deciding how to publish documents on the web back in the mid-1990s. "You see, I'd recently been approached by the folks at the Microsoft Network. They'd identified O'Reilly as an interesting specialty publisher, just the kind of target that they hoped would embrace the Microsoft Network (or MSN, as it came to be called). The offer was simple: Pay Microsoft a $50,000 fee plus a share of any revenue, and in return it would provide this great platform for publishing, with proprietary publishing tools and file formats that would restrict our content to users of the Microsoft platform. The only problem was we'd already embraced the alternative: We had downloaded free Web server software and published documents using an open standards format. That meant anyone could read them using a free browser. While MSN had better tools and interfaces than the primitive World Wide Web, it was clear to us that the Web's low barriers to entry would help it to evolve more quickly, would bring in more competition and innovation, and would eventually win the day."

NicApicella writes "My new system has two sparklin' SATA drives which I would like to mirror. After having been burned by a not-so-cheap, dedicated RAID controller, I have been pointed to software RAID solutions. I now stand in front of two choices for setting up my RAID: a Windows 7 RC software RAID or a hardware RAID done by the cheap integrated RAID controller of my motherboard. Based on past experiences, I have decided that only my data is worth saving — that's why the RAID should mirror two disks (FAT32) that are not the boot disk (i.e. do not contain an OS or any fancy stuff). Of course, such a setup should secure my data; should a drive crash, I want the system up and running in no time. Even more importantly, I want any drive and its data to be as safe and portable as possible (that's the reason for choosing FAT32), even if the OS or the controller screw up big time. So, which should I choose? Who should I trust more, Microsoft's Windows 7 or possibly the cheapest RAID controller on the market? Are there other cheap solutions?"

In 1987, a study published by Jim Gray and Gianfranco Putzolu evaluated the trade-offs between holding data in memory and storing it on a disk. Known widely as the "five-minute rule," their research was updated and expanded 10 years later. Now, as jamie points out, Communications of the ACM is running an article by Goetz Graefe with another decennial update, evaluating the rule using hardware and software typical of 2007, with an eye toward how flash memory will affect the situation. An excerpt from Graefe's conclusion: "The 20-year-old five-minute rule for RAM and disks still holds, but for ever-larger disk pages. Moreover, it should be augmented by two new five-minute rules: one for small pages moving between RAM and flash memory and one for large pages moving between flash memory and traditional disks. For small pages moving between RAM and disk, Gray and Putzolu were amazingly accurate in predicting a five-hour break-even point two decades into the future. Research into flash memory and its place in system architectures is urgent and important. Within a few years, flash memory will be used to fill the gap between traditional RAM and traditional disk drives in many operating systems, file systems, and database systems."

PCWorld recently tested the 3G networks of AT&T, Verizon, and Sprint in 13 different cities across the US. They've now posted the results, which show that Sprint and Verizon are neck-and-neck for reliability, while AT&T has consistently higher upload rates. From the article: "Across more than 20 testing locations in each of the 13 cities we tested, Verizon had an average download speed of 951 kbps. Verizon demonstrated good reliability, too; the network was available at a reasonable and uninterrupted speed in 89.8 percent of our tests. Sprint's 3G network delivered a solid connection in 90.5 percent of our 13-city tests. Sprint's average download speed of 808 kbps across 13 cities wasn't flashy (at that speed, a 1MB file downloads in 10 seconds), but dependability is an important asset. The Sprint network performed especially well, both in speed and in reliability, in our test cities in the western part of the United States. The AT&T network's 13-city average download speed in our tests was 812 kbps. Its average upload speed was 660 kbps. Reliability was an issue in our experience of the AT&T system: Our testers were able to make a connection at a reasonable, uninterrupted speed in only 68 percent of their tests." What have you noticed about the various carriers in your city?

pmontra writes "The City of Venice, Italy, started to offer free Wi-Fi to residents (Google translation from the Italian source) on July 3 2009. Tourists and other visitors will pay 5 Euros a day for the service starting from September. The hot spots are connected to a ten thousand kilometer (6,250 mile) fiber optic LAN the City started deploying in the '90s. The first day of free Internet access has been celebrated with a digital treasure hunt in the channels of the lagoon city."

ranjix writes "I need a handheld device which would allow me to read ebooks and/or browse the internet while actively and intensely laying in the hammock (and Yes, I do have a hammock in my mom's basement). I'll try to sum up the basic requirements: (good) PDF reader (and ebooks of whatever sort), WiFi connectivity and Internet browser, screen minimum 4.5", readable in sunlight, etc, fairly responsive, at least 4-5 hours battery. Obviously I looked at the usual suspects: Kindle/Amazon tries to grab one into the proprietary formats and their own network (while other ebook readers don't really browse the internet), laptops/netbooks are pretty hard to hold, and the UMPC arena seems a hodge-podge of 'to be released' (Viliv S5? Aigo whatever?) with 'seriously expensive' (Sony, OQO) or plain 'we recommend you don't buy' (Samsung Q1Ex). Is there anything else I could use in the given circumstances?"