First time accepted submitter jradavenport writes "I've been keeping a log of the health of my MacBook Air battery for the past year, taking samples every minute I use the computer (152,411 readings so far!). This has allowed me to study both my own computing/work habits, but also the fascinating rapid decay of battery capacity. Comparing it to my previous 2009 MacBook Pro, the battery in this 2012 Air is degrading much faster."

iwritethings writes "The Sol, a rugged-looking laptop with built-in foldable solar panels is designed for use in the military, education and developing countries where electricity is scarce. The Canada-based makers behind the Sol claim that the device can run directly off solar energy or can harness the sun's rays to charge the laptop's battery in under two hours. Once fully charged, the battery is expected to last between eight and 10 hours. While the concept of solar charging gadgets isn't new, this type of battery life is unprecedented. There's no word on when Sol will launch, but its headed to Ghana first, and it will run Ubuntu Linux."

First time accepted submitter ormembar writes "I have a laptop with a 1 TB hard disk. I use rsync to perform my backups (hopefully quite regularly) on an external 1 TB hard disk. But, with such a large hard disk, it takes quite some time to perform backups because rsync scans the whole disk for updates (15 minutes in average). Does it exist somewhere a kind of asynchronous RAID-1 free software that would record in a journal all the changes that I perform on the disk and replay this journal later, when I plug my external hard disk on the laptop? I guess that it would be faster than usual backup solutions (rsync, unison, you name it) that scan the whole partitions every time. Do you feel the same annoyance when backing up laptops?"

Nerval's Lobster writes "Last fall, Microsoft launched its Surface RT tablet with high hopes. The sleek touch-screen ran Windows RT, a version of Windows 8 designed for hardware powered by the ARM architecture, which dominates the mobile-device market; it also included a flexible keyboard that doubled as a screen cover. Microsoft executives told any journalist who would listen that Surface RT would position their company as a major player in the tablet arena, ready to battle toe-to-toe with Apple and various Android device manufacturers. Fast-forward to this week, and Microsoft announcing its financial results for the quarter ended June 30. Amidst metrics such as operating income and diluted earnings per share, one number stood out: a $900 million charge (the equivalent of $0.07 per share) related to what Microsoft called 'Surface RT inventory adjustments.' Microsoft had already slashed Surface RT prices by $150, so that nearly-billion-dollar charge wasn't a total surprise — but it did underscore that Surface RT is a bomb. From the outset, Surface RT had an issue with the potential to mightily trip up Microsoft: While Windows RT looks exactly like Windows 8, it can't run legacy Windows programs built for x86 processors, limiting users to what they can download from the built-in Windows Store app hub. While the Windows Store launched with 10,000 apps, that seemed paltry in comparison to the well-developed Android and iOS ecosystems. There's likely nothing that Microsoft could have done about this—every platform has to start somewhere, after all—but the relative lack of apps put Surface RT between the proverbial rock and the hard place: it couldn't rely on Windows' extensive legacy, and it didn't have enough content to make it a true contender from the outset against the iPad and Android tablets. Then there was the matter of price. Microsoft could have taken the Amazon route and sold Surface RT at a relative pittance in order to drive adoption—something that made the Kindle Fire a sizable hit. However, that sort of pricing scheme isn't in Microsoft's corporate DNA: it only cut Surface RT's price several months after release, as a defensive maneuver, when it's likely to do much less good."

First time accepted submitter faffod writes "Coming from a background of console development, where memory management is a daily concern, I found it interesting that there was any doubt that memory management on a constrained system, like a mobile device, would be a concern. Drew Crawford took the time to document his thoughts, and though there is room for some bikesheding, overall it is spot on. Plus it taught me what bikeshedding means."

McGruber writes "Thursday, The Verge broke the news that Microsoft was slashing the price of its tablets — the price of the 32-gig Surface RT plummeted by 42%! Staples, TigerDirect and many other retailers are already selling the tablets at the lowered prices. I wonder what Microsoft will do for customers who purchased a tablet right before the price drop?"

An anonymous reader writes "Last October, we discussed Andrew 'bunnie' Huang's effort to build a complete open hardware laptop, called the Novena. bunnie has now posted a progress report on the laptop's design and construction, showing the latest revision of the board, the display, and a hack to use it as a secure router. bunnie says, 'At the end of the day, we're having fun building the laptop we always wanted — it's now somewhere between a python-scriptable oscilloscope, logic analyzer, and a laptop. I think it will be an indispensable tool for hacking, particularly for doing signal analysis which requires coordination across multiple protocol layers, complex trigger conditions and/or feedback stimulus loops. As for the inevitable question about if these will be sold, and for how muchonce we're done building the system (and, "done" is a moving target — really, the whole idea is this is continuously under development and improving) I'll make it available to qualified buyers. Because it's open-source and a bit quirky, I'm shy on the idea of just selling it to anyone who comes along wanting a laptop. I'm worried about buyers who don't understand that "open" also means a bit of DIY hacking to get things working, and that things are continuously under development."

puddingebola writes "John Morris at CNET offers a brief review of PC Android devices, many of them hybrids running Windows 8 and Android. From the article, 'Microsoft has spent a lot of time and effort trying to get Windows onto smartphones and tablets — so far without a whole lot to show for it. Now several PC companies are trying the opposite approach, taking the Android operating system and porting it to PCs.' The article reviews the recent releases from HP, Acer, Asus, and Samsung. Does Android creeping onto desktop or 'traditional' PC devices have any kind of possible long term consequences? Could this be a way for Android and Google to develop a larger presence in corporate IT, or could Android ever really supplant the Windows foothold?"

tripleevenfall sends in a story at Yahoo Finance forecasting the end of Barnes & Noble. Quoting: "The last nationwide book retailer may be writing its final chapter. Barnes & Noble's latest quarterly results show a 7.4% drop in revenues and a $122 million loss for the fourth-quarter of its fiscal year. B&N's disastrous focus on making Nook e-Readers is weighing heavily on the chain's operations. A 17% drop in Nook revenues and stunning $475 million loss for the device division in 2013 are hobbling the company's ability to keep its stores afloat. B&N appears to be cannibalizing itself with branded tablets and cross-platform e-reader applications, which render the stores increasingly irrelevant."

onyxruby writes "In a move that will remind many of Apple in the '80s, Microsoft is going to start dumping Surface RT computers to educational institutions. In an effort to try to gain mindshare for their struggling Surface RT platform, Microsoft is giving away 10,000 Surface RTs to teachers through the International Society for Technology in Education. They're also preparing to offer $199 Surface RTs to K12 and higher education institutions. The strategy of flooding the educational market was quite successful for Apple. Unfortunately for Microsoft, today's computers require management and the Surface RT presents significant management challenges in terms of the inability to join the computer to a domain or available management tools."

An anonymous reader writes "The PC market (desktops, notebooks, and tablets) is expected to see almost half a billion units ship this year, 493.1 million to be exact, representing 7 percent year-on-year growth. Unsurprisingly, the key driver behind this growth will be tablets, accounting for 37 percent of the overall market and seeing 59 percent growth to 182.5 million units. The latest estimates come from Canalys, an independent analyst firm. Nevertheless, it's worth emphasizing that these are estimates, though they do line up with what the broader industry is seeing: desktops are down, laptops are down, but tablets are up."

saccade.com writes "Ever wonder how Google packed all of the Google Glass functionality into a slender eyeglass frame? Find out by checking out this teardown by Scott Torborg and Star Simpson. Goodies found inside include proximity, light and inertial sensors, sound transducers, a TI OMAP CPU, flash, RAM, camera and tiny projection display."

MojoKid writes "Dell recently combined two trending PC design styles into a single system and called it the XPS 18 Portable All-In-One Desktop. The machine has all the power of an AIO desktop system and some of the portability of a tablet. To be clear, Dell isn't suggesting you'll want to tote this thing across town in ways that you might use an iPad. It's portable in that you can snatch up the 18.4-inch Full HD display from your home office and take it to the living room to switch gears from Google Docs to gaming with the kids, or take it upstairs for some late night surfing before bed. ... The main attraction, however, is that the PC itself is a portable display featuring an 18.4-inch IPS panel with a 1920x1080 resolution and full touch support. Performance-wise the XPS 18 holds its own versus mainstream all-in-one touch PCs, but with added ability to pick the 5 pound system up go virtually anywhere with it on a moment's notice."

MojoKid writes "Hot Hardware recently set out to design a custom mini desktop system with the popular Raspberry Pi single board computer. People have configured the device for a variety of applications, from micro-servers to low cost media players. Basically, the goal was to turn what is currently one of the cheapest bare-bones computer boards into a fully enclosed mini desktop computer that could be taken anywhere without the need for cabling or setup. This small DIY project is just one of many examples of the flexibility of the Raspberry Pi's open architecture. And to think you can even run Quake and Minecraft on it."

First time accepted submitter paragonc writes "I am a software engineer who works remotely. I'm amazingly lucky to live in Austin, Texas where I have access to multiple high quality co-working facilities within biking distance. While these places are great for networking and establishing a rhythm to daily life, not having a permanent desk forces me to pack my gear in and out each day. This means i pack light. My current Go Bag includes a 13.3 inch MacBook pro, and an iPad running avatron Air Display. This has worked well, but i'm sorely missing having a real high resolution external monitor. I've looked at a few of the USB powered external displays, but the resolution seems to only hit 1366 X 768. I'd be curious if slashdotters have any tricks up their sleeves on how to implement a high resolution portable external displays."

recoiledsnake writes "The first real world stats for Chromebooks show that they're struggling to have any traction in the marketplace. In its first week of monitoring worldwide usage of Google's Chrome OS, NetMarketShare reported that the percentage of web traffic from Chromebooks was roughly 2/100 of 1 percent, a figure too small to earn a place on its reports. The first Chromebooks went on sale in June 2011, nearly two years ago, with Acer reportedly selling fewer than 5000 units in the first six months and Samsung selling even fewer. In the past three years, Chromebook sales have been worse than even three months worth of WindowsRT sales. Perhaps users are heeding Stallman's warning on Chromebooks. We previously discussed reports of Chromebook topping Amazon sales, selling to 2000 schools and wondered whether QuickOffice on ChromeOS can topple Microsoft Office." I find ChromeOS good in some contexts (any place that a browser and a thin layer of Linux is all you need), but the limitations are frustrating — especially on hardware that can run a conventional Linux as well as Google's specialized one. We'll watch for developments in the Google hardware world at next week's I/O conference.

Sean Hollister at The Verge was recently outfitted with Google Glass, and he provides a report on some basic usage. There's a learning curve — the device relies heavily on what information you push from your phone, so if you haven't thought through every use-case, you'll find yourself reaching for your phone fairly often. Hollister took Glass on the road for use as a kind of heads-up display while driving, and he says it felt awesome, but dangerous. "You have to look directly at what you're photographing, so you won't be getting any safe photographs unless they're photos of the road. More importantly, Glass' ability to look up important information on the go is extremely thin right now. ... While I loved having turn-by-turn directions from Google Maps navigation floating in my peripheral vision, the display wasn't bright enough for me to see those directions while looking out the windshield of my car. I had to glance up towards the car's ceiling, or place a hand behind the cube to see where I was going. ... When another person called, I was able to pick up easily enough by tapping Glass at my temple, but the bone-conducting speaker wasn't loud enough to hear over the noise of the car. I had to enunciate extremely clearly and loudly for Glass to interpret my voice searches correctly." Hollister says Glass has a lot of potential — the things that don't work well are at least close. CNET's Scott Stein also provided a detailed perspective on how Glass works for somebody who already wears glasses: "I can see the screen with some twiddling. Glass can end up tipping to the side, and I need to prop it up with my fingers, since the nose piece isn't seated on my nose any longer."

An anonymous reader writes "When Barnes & Noble first released its Nook tablets, one of the big problems with the devices was that their custom version of Android only had access to the Barnes & Noble app store. They took the 'walled garden' approach, preventing users from accessing Google Play, which had a much larger selection of software and many more options when it came to free apps. Now, the company is reversing that decision. A software update is being rolled out to give the devices access to Google Play. 'The bottom line: if something's available for Android, it's now available for Nook, assuming it's compatible from a technical standpoint. Among other things, that means you'll be able to install Amazon's Kindle app on a Nook and read books you've purchased from Amazon. For the first time, the notion of someone with a heavy investment in Kindle books buying a Nook doesn't sound completely impractical.' The company is gambling that the devices' increased utility will make up for the loss in app revenue. Either way, it's good news for Nook tablet owners."

Nerval's Lobster writes "BlackBerry CEO Thorsten Heins believes that tablets will be dead by 2018. 'In five years I don't think there'll be a reason to have a tablet anymore,' he told an interviewer at the Milken Institute conference in Los Angeles, according to Bloomberg. 'Maybe a big screen in your workplace, but not a tablet as such. Tablets themselves are not a good business model.' That may come as a surprise to Apple, Google, Amazon and Samsung, all of which have built significant tablet businesses over the past few years. Research firm Strategy Analytics suggested in a research note earlier this month that the global tablet market hit 40.6 million units shipped in the first quarter of 2013, a significant rise from the 18.7 million shipped in the same quarter last year. So why would Heins offer such a pessimistic prediction when everyone else — from the research firms to the tablet-makers themselves — seems so full-speed-ahead? It's easy to forget sometimes that BlackBerry has its own tablet in the mix: the PlayBook, which was released to quite a bit of fanfare in early 2011 but failed to earn iPad-caliber sales. Despite that usefulness to developers, however, the PlayBook has become a weak contender in the actual tablet market. If Heins is predicting that market's eventual demise, it could be a coded signal that he intends to pull BlackBerry out of the tablet game, focusing instead on smartphones. It wouldn't be the first radical move the company's made in the past year."

symbolset writes "Outbound Intel CEO Paul Otellini created quite a stir when mentioning that touchscreen laptops would reach a $200 price point. CNET is now reporting in an interview with Intel chief product officer Dadi Perlmutter that these touchscreen laptops will run Android on Intel Atom processors at first. 'Whether Windows 8 PCs hit that price largely depends on Microsoft, he said. "We have a good technology that enables a very cost-effective price point," Perlmutter said. The price of Windows 8 laptops "depends on how Microsoft prices Windows 8. It may be a slightly higher price point." ... Perlmutter didn't specify what the Android notebooks will look like, but it's probable they'll be convertible-type devices. He also noted that he expects the PC market to pick up in the back half of the year and heading into 2014 as new devices become available."