RobHart (70431) writes My friend has had both retinas detach, twice. He is legally blind but partially sighted. He has a number of devices that help him read (either by magnifying the text or as text to speech) — but none are really portable. What do Slashdotters recommend (if anything) in terms of a tablet and software that will make it possible for him to do email and read at least some web sites?

ckwu writes Materials scientists have constructed round, pom-pom-like graphene microparticles by spraying graphene oxide droplets into a hot solvent—a process akin to deep-frying. The technique could provide a simple, versatile means to make electrode materials for batteries and supercapacitors, possibly leading to devices with improved energy and power densities, the researchers say. The microparticles contain graphene nanosheets radiating out from their centers, which increases the exposed surface area of the graphene and creates open nanochannels that can enhance charge transfer. Electrodes made with the graphene microspheres had higher capacitance than those made with unassembled graphene sheets, demonstrating that the 3-D structure of the particles improved performance.

DumbSwede writes BBC reports on the demise of Google Glass as we know it: Google Glass sales halted but firm says kit is not dead. One can only assume there will be dissatisfied early adopters and developers given Google's decision. Here is to hoping Google Glass 2.0 (assuming there is one) will be better received. The Verge expands a bit on the re-org that the linked BBC article mentions, as a result of which Google Glass moves from the Google X incubator to its own division: Google's announcing today Glass is "graduating" from the Google X experimental projects incubator to become its own independent division — a division that will report into Nest's Tony Fadell. Current Glass head Ivy Ross will retain day-to-day authority, but she'll report to Fadell. Nest itself will remain separate and independent, and Tony will still be in charge there as well.

An anonymous reader writes I'm in the camp that doesn't trust systemd. You can discuss the technical merits of all init solutions all you want, but if I wanted to run Windows NT I'd run Windows NT, not Linux. So I've decided to migrate my homebrew router/firewall/samba server to one of the BSDs. Question one is: which BSD? Question two: where's some good documentation regarding setting up a home router/firewall on your favorite BSD?
It's fine if the documentation is highly technical, I've written linux kernel drivers before :)

HughPickens.com writes The death of the mainframe has been predicted many times over the years but it has prevailed because it has been overhauled time and again. Now Steve Lohr reports that IBM has just released the z13, a new mainframe engineered to cope with the huge volume of data and transactions generated by people using smartphones and tablets. "This is a mainframe for the mobile digital economy," says Tom Rosamilia. "It's a computer for the bow wave of mobile transactions coming our way." IBM claims the z13 mainframe is the first system able to process 2.5 billion transactions a day and has a host of technical improvements over its predecessor, including three times the memory, faster processing and greater data-handling capability. IBM spent $1 billion to develop the z13, and that research generated 500 new patents, including some for encryption intended to improve the security of mobile computing. Much of the new technology is designed for real-time analysis in business. For example, the mainframe system can allow automated fraud prevention while a purchase is being made on a smartphone. Another example would be providing shoppers with personalized offers while they are in a store, by tracking their locations and tapping data on their preferences, mainly from their previous buying patterns at that retailer.

IBM brings out a new mainframe about every three years, and the success of this one is critical to the company's business. Mainframes alone account for only about 3 percent of IBM's sales. But when mainframe-related software, services and storage are included, the business as a whole contributes 25 percent of IBM's revenue and 35 percent of its operating profit. Ronald J. Peri, chief executive of Radixx International was an early advocate in the 1980s of moving off mainframes and onto networks of personal computers. Today Peri is shifting the back-end computing engine in the Radixx data center from a cluster of industry-standard servers to a new IBM mainframe and estimates the total cost of ownership including hardware, software and labor will be 50 percent less with a mainframe. "We kind of rediscovered the mainframe," says Peri.

An anonymous reader writes Google is holding its second Project Ara developer's conference today in Mountain View and is in the process of giving a roadmap on how and when it might get its modular smartphones out into the market. Probably the most notable bit of news we've learned so far is that Google plans to have a market pilot ready to go in the second half of this year. Unfortunately, if you want to give it a shot, you'll need to live in Puerto Rico — the pilot will roll out in that territory in partnership with carriers OpenMobile and Claro. When Project Ara hits Puerto Rico, users should be able to customize their devices using the Ara Marketplace and Ara Configurator apps. Google's ATAP group will also roll out some "food-truck" style stores for consumers to actually check these devices out before they try them out. Google also says that it'll have some 20 to 30 Ara modules available by launch across 10 different categories.

DeviceGuru writes CompuLab has unveiled a tiny 'Fitlet' mini-PC that runs Linux or Windows on a dual- or quad-core 64-bit AMD x86 SoC (with integrated Radeon R3 or R2 GPU), clocked at up to 1.6GHz, and offering extensive I/O, along with modular internal expansion options. The rugged, reconfigurable 4.25 x 3.25 x 0.95 in. system will also form the basis of a pre-configured 'MintBox Mini' model, available in Q2 in partnership with the Linux Mint project. To put things in perspective, CompuLab says the Fitlet is three times smaller than the Celeron Intel NUC.

New submitter TechCurmudgeon writes: According to a story at Wired, towns in Mexico that aren't served by the nation's telecom monopoly are taking matters in their own hands with the help of a non-profit and open source technology. "Strategically ignored by Mexico's major telecoms, Yaee is putting itself on the mobile communications grid with the help of a Oaxaca-based telecommunications non-profit called Rhizomatica." A locally-made tower is the backbone of Yaee's first cellular network. The town's network is composed of two antennas and an open-source base station from a Canadian company called NuRAN. Once Yaee gets the tower installed and the network online, its 500 citizens will, for the first time, be able to make cell phone calls from home, and for cheaper rates than almost anywhere else in Mexico.

jones_supa writes: David Albert asked the following question:

"My mental model of CPUs is stuck in the 1980s: basically boxes that do arithmetic, logic, bit twiddling and shifting, and loading and storing things in memory. I'm vaguely aware of various newer developments like vector instructions (SIMD) and the idea that newer CPUs have support for virtualization (though I have no idea what that means in practice). What cool developments have I been missing? "

An article by Dan Luu answers this question and provides a good overview of various cool tricks modern CPUs can perform. The slightly older presentation Compiler++ by Jim Radigan also gives some insight on how C++ translates to modern instruction sets.

An anonymous reader writes: Samsung took a distinctly different tack from Oculus VR in developing virtual reality tech. Whereas Oculus has a dedicated device, Samsung simply has a high-tech piece of headgear that you strap a Galaxy Note 4 phone into. A review popped up at Ars Technica after a month using the device, and they say it works surprisingly well. Quoting: "Though the weight of the two units is comparable, the Gear VR benefits from a strap system that distributes that weight on the upper forehead and the back of the skull rather than through an elastic death grip around the eye area."

They still say a purchase is hard to justify, simply because the content selection is lacking. But as that improves, the price tag will become worth it. "Simple, minimally interactive virtual reality experiences like The Deep, BluVR, and Titans of Space have become go-to apps when passing the Gear VR around a party for friends to check out. It's incredible just sitting in place and following along with your gaze as sea life or entire planets fly by in sharp, well-rendered, 360-degree glory."

mpicpp points out a report that Apple has been awarded a broad patent for gesture control of a computer interface (8,933,876). The company inherited the patent after their acquisition of motion-sensor company PrimeSense in 2013. (PrimeSense's technology is used in Microsoft's Kinect gesture control system.) Here's the patent's abstract: A method, including receiving, by a computer executing a non-tactile three dimensional (3D) user interface, a set of multiple 3D coordinates representing a gesture by a hand positioned within a field of view of a sensing device coupled to the computer, the gesture including a first motion in a first direction along a selected axis in space, followed by a second motion in a second direction, opposite to the first direction, along the selected axis. Upon detecting completion of the gesture, the non-tactile 3D user interface is transitioned from a first state to a second state.

mrspoonsi sends this news from TechCrunch: Over the past two years, the growing popularity of mobile devices has eaten into PC sales. A new report by Gartner, however, shows that shipments may continue to enjoy a very slow but steady uptick this year as tablet sales hit a peak. The research firm found that worldwide PC shipments in the fourth quarter of 2014 grew one percent year-over-year, the first increase since 2012. In the U.S., PC shipments increased 13.1 percent year-over-year, the fastest increase in four years, thanks to holiday purchases. Inexpensive laptops (about $200 to $300), thin and light notebooks, and laptops with a detachable screen helped drive growth. Lenovo continued to be the number one PC maker in terms of shipment volume, with a 19.4 percent marketshare.

msm1267 writes: Hardware hacker and security researcher Samy Kamkar has released a slick new device that masquerades as a typical USB wall charger but in fact houses a keylogger capable of recording keystrokes from nearby wireless keyboards. The device is known as KeySweeper, and Kamkar has released the source code and instructions for building one of your own. The components are inexpensive and easily available, and include an Arduino microcontroller, the charger itself, and a handful of other bits. When it's plugged into a wall socket, the KeySweeper will connect to a nearby Microsoft wireless keyboard and passively sniff, decrypt and record all of the keystrokes and send them back to the operator over the Web.

An anonymous reader writes: Bruce Schneier has codified another lesson from the Sony Pictures hack: companies should know what data they can safely delete. He says, "One of the social trends of the computerization of our business and social communications tools is the loss of the ephemeral. Things we used to say in person or on the phone we now say in e-mail, by text message, or on social networking platforms. ... Everything is now digital, and storage is cheap — why not save it all?

Sony illustrates the reason why not. The hackers published old e-mails from company executives that caused enormous public embarrassment to the company. They published old e-mails by employees that caused less-newsworthy personal embarrassment to those employees, and these messages are resulting in class-action lawsuits against the company. They published old documents. They published everything they got their hands on."

Schneier recommends organizations immediately prepare a retention/deletion policy so in the likely event their security is breached, they can at least reduce the amount of harm done. What kind of retention policy does your organization enforce? Do you have any personal limits on storing old data?

Esther Schindler writes: In this article, Robin Harris predicts what storage will be like in 2025. And, he says, the next 10 years will be the most exciting and explosive in the history of data storage. For instance: "There are several forms of [Resistive RAM], but they all store data by changing the resistance of a memory site, instead of placing electrons in a quantum trap, as flash does. RRAM promises better scaling, fast byte-addressable writes, much greater power efficiency, and thousands of times flash's endurance. RRAM's properties should enable significant architectural leverage, even if it is more costly per bit than flash is today. For example, a fast and high endurance RRAM cache would simplify metadata management while reducing write latency."

'The EnOcean technology is an energy harvesting wireless technology used primarily in building automation systems; but is also applied to other applications in industry, transportation, logistics and smart homes,' says Wikipedia. There's also a Siemans spinoff company called EnOcean, and today's video is an interview with its president, Jim O'Callaghan. But EnOcean technology is the real star here. The idea is that energy-efficient sensors can be powered by energy harvesting, i.e. drawing energy from their surroundings, including such low-level sources as light, temperature changes, and pressure, which can be the pressure of your finger on a switch or even changes in barometric pressure. The EnOcean Alliance has a professionally-produced video that describes their technology and notes that self-powered wireless sensors not only save energy but save miles of wire between sensor nodes and controllers, which means it's possible to install more sensors sensing more parameters than in the past. (Alternate Video Link)

Press2ToContinue writes "There is a new idea out there, proposed by Shawn Wilkinson, Tome Boshevski & Josh Brandof, that if you have unused disk space on your HD that you should rent it out. It is a great idea and the concept may have a whole range of implementations. The 3 guys describe their endeavor as: "Storj is a peer-to-peer cloud storage network implementing end-to-end encryption would allow users to transfer and share data without reliance on a third party data provider. The removal of central controls would eliminate most traditional data failures and outages, as well as significantly increasing security, privacy, and data control. A peer-to-peer network and basic encryption serve as a solution for most problems, but we must offer proper incentivisation for users to properly participate in this network."

Lucas123 writes: Driven largely by oil price weakness, 2015 could be the best year to date for investments in renewable energy technology, according to several new reports. According to Bloomberg Energy Finance, new funding for wind, solar, biofuels and other low-carbon energy technologies grew 16% to $310 billion last year. It was the first growth since 2011 (PDF), erasing the impact of lower solar-panel prices and falling subsides in the U.S. and Europe that hurt the industry in previous years. Demand for solar power grew 16% year-over-year in 2014, representing 44 gigawatts of capacity purchased during the year. Worldwide solar demand in 2015 is projected to be 51.4GW, compared with 39GW in 2014. Government policies will continue to improve for renewables — solar, in particular — given that anti-dumping duties imposed on Chinese modules by the U.S. last year are expected to be removed this year, Deutsche Bank said.

MojoKid writes: Intel's strategically timed CES 2015 launch of their new 5th Gen Core Series processors for notebooks was met with a reasonably warm reception, though it's always difficult to rise above the noise of CES chatter. Performance claims for Intel's new chip promise major gains in graphics and more modest increases in standard compute applications. However, the biggest bet Intel placed on the new Broadwell-U architecture is performance-per-watt throughput and battery life in premium notebook products that are now in production with major OEM partners. A few manufacturers were early out of the gate with new Core i5 5XXX series-based machines, however, none of the major players caught the same kind of buzz that Dell received, with the introduction of their new XPS 13 Ultrabook with its near bezel-less 13-inch WQHD (3200X1800) display. As expected, the Core i5-5200U in this machine offered performance gains of anywhere from 10 to 20 percent, in round numbers, depending on the benchmark. In gaming and graphics testing is where the new 5200U chip took the largest lead over the previous gen Core i5-4200U CPU, which is one of the most common processors found in typical ultrabook style 13-inch machines.

New submitter PLAR writes: Everyone's worried about the next Stuxnet sabotaging the power grid, but a security researcher says there's been a spike in traditional banking Trojan attacks against plant floor networks. The malware poses as legitimate ICS/SCADA software updates from Siemens, GE and Advantech. Kyle Wilhoit, the researcher who discovered the attacks, says the attackers appear to be after credentials and other financial information, so it looks like pure cybercrime, not nation-state activity.