Google

Chromebooks Don't Suffer From Bad User Experiences Found on Windows and Mac Computers, Google Says (aboutchromebooks.com) 185

Kevin C. Tofel, writing for About Chromebooks: Having worked for a Google Chrome Marketing team over an 18 month period, I never saw a project that aggressively goes after Windows and Mac computers like the one that was published today [Editor's note: the video is unlisted, but accessible]. [...] As someone who has used (and often still does use) other platforms, I can't really disagree with the point of this video. For too long, computer users have had to deal with cryptic errors, updates that can take hours to install and the dreaded blue screen of death / spinning beach ball.

Granted, some of my personal experience with those issues was when I was in corporate IT for 15 years; that career ended for me (by choice) back in 2007. And clearly, all desktop / laptop platforms have improved since then. Even so, Google is highlighting the modern approach of Chromebooks with this short video and that's an important point.

Businesses

Logitech Is Acquiring Blue Microphones For $117 Million In Cash (theverge.com) 79

Logitech announced late Monday night that it is acquiring Blue Microphones for $117 million. The company known for USB condenser microphones, such as the Snowball and Yeti, will join Logitech's existing portfolio of brands. The Verge reports: Founded in 1995, Blue sells microphones that range in price from $60 to over $4,000 (for studio-grade hardware), and they're used by podcasters, musicians, and any other consumers who need higher-fidelity audio than what they get from the built-in microphones on their devices. Now, after dropping a heap of cash on the company, Logitech will do its best to make sure Blue's devices become just as essential as its own wireless keyboards and mice. "For Logitech, this is a new space," the company wrote in a blog post. "But, at the same time, it's not at all. Gamers are already using our Logitech G webcams to stream. People are video calling with friends and family thanks to Logitech every day. And in business, our audio and video know-how is apparent every time a video meeting takes place at the office. Joining up with Blue and their microphone lines is a logical adjacent opportunity with great synergies."
Robotics

OpenAI's Dactyl System Gives Robots Humanlike Dexterity (venturebeat.com) 22

An anonymous reader quotes a report from VentureBeat: In a forthcoming paper ("Dexterous In-Hand Manipulation"), OpenAI researchers describe a system that uses a reinforcement model, where the AI [known as Dactyl] learns through trial and error, to direct robot hands in grasping and manipulating objects with state-of-the-art precision. All the more impressive, it was trained entirely digitally, in a computer simulation, and wasn't provided any human demonstrations by which to learn. The researchers used the MuJoCo physics engine to simulate a physical environment in which a real robot might operate, and Unity to render images for training a computer vision model to recognize poses. But this approach had its limitations, the team writes -- the simulation was merely a "rough approximation" of the physical setup, which made it "unlikely" to produce systems that would translate well to the real world. Their solution was to randomize aspects of the environment, like its physics (friction, gravity, joint limits, object dimensions, and more) and visual appearance (lighting conditions, hand and object poses, materials, and textures). This both reduced the likelihood of overfitting -- a phenomenon that occurs when a neural network learns noise in training data, negatively affecting its performance -- and increased the chances of producing an algorithm that would successfully choose actions based on real-world fingertip positions and object poses.

Next, the researchers trained the model -- a recurrent neural network -- with 384 machines, each with 16 CPU cores, allowing them to generate roughly two years of simulated experience per hour. After optimizing it on an eight-GPU PC, they moved onto the next step: training a convolutional neural network that would predict the position and orientation of objects in the robot's "hand" from three simulated camera images. Once the models were trained, it was onto validation tests. The researchers used a Shadow Dexterous Hand, a robotic hand with five fingers with a total of 24 degrees of freedom, mounted on an aluminum frame to manipulate objects. Two sets of cameras, meanwhile -- motion capture cameras as well as RGB cameras -- served as the system's eyes, allowing it to track the objects' rotation and orientation. In the first of two tests, the algorithms were tasked with reorienting a block labeled with letters of the alphabet. The team chose a random goal, and each time the AI achieved it, they selected a new one until the robot (1) dropped the block, (2) spent more than a minute manipulating the block, or (3) reached 50 successful rotations. In the second test, the block was swapped with an octagonal prism. The result? The models not only exhibited "unprecedented" performance, but naturally discovered types of grasps observed in humans, such as tripod (a grip that uses the thumb, index finger, and middle finger), prismatic (a grip in which the thumb and finger oppose each other), and tip pinch grip. They also learned how to pivot and slide the robot hand's fingers, and how to use gravitational, translational, and torsional forces to slot the object into the desired position.

Robotics

Human Bankers Are Losing To Robots as Nordea Sets a New Standard (bloomberg.com) 78

Something interesting happened in Swedish finance last quarter. The only big bank that managed to cut costs also happens to be behind one of the industry's boldest plans to replace humans with automation. From a report: Nordea Bank AB, whose Chief Executive Officer Casper von Koskull says his industry might only have half its current human workforce a decade from now, is cutting 6,000 of those jobs. Von Koskull says the adjustment is the only way to stay competitive in the future, with automation and robots taking over from people in everything from asset management to answering calls from retail clients. While many in the finance industry have struggled to digest that message, the latest set of bank results in Sweden suggests that executives in one of the planet's most technologically advanced corners are drawing inspiration from Nordea. At SEB AB, CEO Johan Torgeby now says that "whatever can be automated will be automated."
Transportation

Uber's Self-Driving Trucks Division Is Dead (techcrunch.com) 61

Uber is shuttering its self-driving unit, reports TechCrunch. The company will reportedly stop development of self-driving trucks and instead focus its efforts on self-driving cars. "We recently took the important step of returning to public roads in Pittsburgh, and as we look to continue that momentum, we believe having our entire team's energy and expertise focused on this effort is the best path forward," Eric Meyhofer, head of Uber Advanced Technologies Group, said in an emailed statement. From the report: Uber Freight, a business unit that helps truck drivers connect with shipping companies, is unaffected by this decision. "Rather than having two groups working side by side, focused on different vehicle platforms, I want us instead collaborating as one team, according to an email reviewed by TechCrunch that was sent by Meyhofer to employees. "I know we're all super proud of what the Trucks team has accomplished, and we continue to see the incredible promise of self-driving technology applied to moving freight across the country. But we believe delivering on self-driving for passenger applications first, and then bringing it to freight applications down the line, is the best path forward. For now, we need the focus of one team, with one clear objective." The company will pivot employees focused on self-driving trucks to other work that revolves around self-driving technology.
Printer

20 States Take Aim At 3D Gun Company, Sue To Get Files Off the Internet (arstechnica.com) 490

An anonymous reader quotes a report from Ars Technica: Twenty states announced Monday that they plan to ask a federal judge in Seattle to immediately issue a temporary restraining order against Defense Distributed, a Texas-based group that has already begun making 3D-printer gun files available on its DEFCAD website after a recent legal settlement with the US State Department. "After almost 18 months I was skeptical that there was anything else that this administration would do that would truly shock me, but they have," Washington Attorney General Bill Ferguson told reporters assembled in Olympia and by phone. "Frankly, it is terrifying... We think that it is important to put a stop to this right away and make it as difficult as humanly possible to access this information." The new lawsuit, which Ferguson explained will be filed "within hours," comes just one day after Defense Distributed voluntarily agreed to block IP addresses from Pennsylvania after that state's attorney general filed a similar motion in federal court there. "Pennsylvania is still suing and we are still responding," Defense Distributed's founder, Cody Wilson, told Ars. Preemptively on Sunday, Defense Distributed sued the attorney general of New Jersey and the city attorney of Los Angeles to stop those lawsuits, largely on First Amendment grounds.

In this new 20-state initiative, the Washington attorney general argued that the State Department settlement violated the Administrative Procedure Act and also infringed upon states' Tenth Amendment right to regulate firearms within their own states. Ferguson pointed out, for example, people convicted of domestic abuse are flagged when they attempt to legally buy a gun. Allowing anyone to download and manufacture their own gun circumvents that process, he said. But Wilson told Ars it may be too late, as the files went up last Friday evening -- days before he said he would resume publishing them on August 1.

Businesses

Ubuntu Linux-based Distro Lubuntu To No Longer Focus on Old Hardware (betanews.com) 85

Lubuntu, a popular Ubuntu flavor, has gained traction over the years for supporting older hardware. As Brian Fagioli writes at BetaNews, one of the focuses of the Lubuntu developers is to support aging computers. However, that is about to change. He adds: When Lubunu 18.10 is released in October 2018, it will ditch LXDE for the newer LXQt. Despite it also being a desktop environment that is easy on resources, the Lubuntu developers are planning to drop their focus on old hardware after the transition. "[...] Our main focus is shifting from providing a distribution for old hardware to a functional yet modular distribution focused on getting out of the way and letting users use their computer. In essence, this is leveraging something we have always done with Lubuntu; providing an operating system which users can use to revive their old computers, but bringing this to the age of modern computing," says Simon Quigley of Lubuntu team.
Government

DARPA Has an Ambitious $1.5 Billion Plan To Reinvent Electronics (technologyreview.com) 66

The Defense Advanced Research Projects Agency (DARPA), which funds a range of blue-sky research efforts relevant to the US military, last year launched a $1.5 billion, five-year program known as the Electronics Resurgence Initiative (ERI) to support work on advances in chip technology. It has now unveiled the first set of research teams selected to explore unproven but potentially powerful approaches that could revolutionize US chip development and manufacturing. From a report: The ERI's budget represents around a fourfold increase in DARPA's typical annual spending on hardware. Initial projects reflect the initiative's three broad areas of focus: chip design, architecture, and materials and integration. One project aims to radically reduce the time it takes to create a new chip design, from years or months to just a day, by automating the process with machine learning and other tools so that even relatively inexperienced users can create high-quality designs.

"No one yet knows how to get a new chip design completed in 24 hours safely without human intervention," says Andrew Kahng of the University of California, San Diego, who's leading one of the teams involved. "This is a fundamentally new approach we're developing." William Chappell, the head of the DARPA office that manages the ERI program, said, "We're trying to engineer the craft brewing revolution in electronics." The agency hopes that the automated design tools will inspire smaller companies without the resources of giant chip makers, just as specialized brewers in the US have innovated alongside the beer industry's giants.

Software

The Next iPad Pros Will Shrink and Lose Their Headphone Jacks, Says Report (9to5mac.com) 219

According to supply chain blog Macotakara, the new iPad Pro models that will be introduced later this year will be slimmer, feature Face ID, and have no headphone jacks. 9to5Mac reports the details: First off, the report offers additional details on the 2018 iPad Pro dimensions. The 10.5-inch model is said to come in at 247.5mm (H) x 178.7mm (W) x 6mm (T), compared to the current dimensions of 250.6mm x 174.1mm x 6.1 mm. Meanwhile, the 12.9-inch iPad Pro is said to stack up at 280mm (H) x 215mm (W) x 6.4mm (T), which compares to the current-generation model at 305.7 x 220.6 x 6.9 mm. With these dimensions, it seems that Apple is focused more on reducing the overall footprint of the 12.9-inch model, fitting the same size display into a considerably smaller body. The report goes on to explain that Apple is likely to ditch the headphone jack with this year's iPad Pro models, a move the company first made with the iPhone 7. While Apple includes a Lightning to 3.5mm headphone adapter to ease the blow for iPhone users, it will not do the same for iPad Pro users, according to today's report.

Today's report corroborates that this year's iPad Pro models will feature Face ID, but it notes that there is no support for landscape Face ID as earlier reports had indicated. This presents an interesting problem for the iPad Pro, which is used commonly in landscape mode with accessories such as the Smart Keyboard. Macotakara notes, however, that Apple is moving the Smart Connector on this year's models to "the lower rear side -- close to the Lightning connector." What exactly this means is unclear, but the report explains that "the next iPad Pro Smart Keyboard may be changed to vertical position specifications." This is seemingly implying that the iPad Pro would dock vertically into the Smart Keyboard, but how that would work is vague at the moment.

Operating Systems

Magic Leap Offers a First Look At Its Mixed Reality OS (cnet.com) 50

TechCrunch's Lucas Matney describes the Lumin operating system that will power Magic Leap's upcoming Magic Leap One mixed reality headset: Alright, first, this is what the Magic Leap One home screen will apparently look like, it's worth noting that it appears that Magic Leap will have some of its own stock apps on the device, which was completely expected but they haven't discussed much about. Also worth noting is that Magic Leap's operating system by and large looks like most other operating systems, they seem to be well aware that flat interfaces are way easier to navigate so you're not going to be engaging with 3D assets just for the sake of doing so. The company seems to be distinguishing between two basic app types for developers: immersive apps and landscape apps. Landscape apps like what you see in the image above, appear to be Magic Leap's version of 2D where interfaces are mostly flat but have some depth and live inside a box called a prism that fits spatially into your environment. It seems that you'll be able to have several of these running simultaneously. Immersive apps, on the other hand, like the game title, Dr. Grordbort -- which Magic Leap has been teasing for years -- respond to the geometry of the space that you are in and is thus called an immersive app.

Moving beyond apps, the company also had a good deal to share about how you interact with what's happening in the headset. Magic Leap will have a companion smartphone app that you can type into, you can connect a bluetooth keyboard and there will also be an onscreen keyboard with dictation capabilities. One of the big highlights of Magic Leap tech is that you'll be able to share perspectives of these apps in a multi-player experience which we now know is called "casting," apps that utilize these feature will just have a button that you can press to share an experience with a contact.

Intel

Intel's 10nm 'Cannon Lake' Processors Won't Arrive Until Late 2019 (digitaltrends.com) 149

At the company's second quarter 2018 financial results conference call, Intel chief engineering officer Venkata Renduchintala said the "Cannon Lake" 10mn processors won't appear in products until the 2019 holiday season. "The systems on shelves that we expect in holiday 2019 will be client systems, with data center products to follow shortly after," Renduchintala said. Interim CEO Robert Swan went on to tout the company's "very good lineup" of 14nm products. Digital Trends reports: "Recall that 10nm strives for a very aggressive density improvement target beyond 14nm, almost 2.7x scaling," Renduchintala said during the call. "And really, the challenges that we're facing on 10nm is delivering on all the revolutionary modules that ultimately deliver on that program." Although he acknowledged that pushing back 10nm presents a "risk and a degree of delay" in the company's road map, Intel is quite pleased with the "resiliency" of its 14nm roadmap. He said the company delivered an excess of 70 percent performance improvement over the last few years. Meanwhile, Intel's 10nm process should be in an ideal state to mass produce chips towards the end of 2019.

Intel's Cannon Lake chip is essentially a shrink of its seventh-generation "Kaby Lake" processor design. Given the previous launch window, the resulting chips presumably fell under the company's eighth-generation banner despite the older design. But with mass production pushed back to late 2019, the 10nm chips will fall under Intel's ninth-generation umbrella along with CPUs based on its upcoming "Ice Lake" design. Intel claims that its 10nm chips will provide 25 percent increased performance over their 14nm counterparts. Even more, they will supposedly consume 50 percent less power than their 14nm counterparts.

Displays

Samsung's 'Unbreakable' OLED Display Gets Certified (theverge.com) 68

Samsung Display, a subsidiary of Samsung Electronics, just introduced a flexible OLED panel that has a transparent plastic cover already attached, emulating the properties of glass but retaining the screen's innate flexibility. The screen is so durability that it's been certified by UL (formerly known as Underwriters Laboratories). The Verge reports: Samsung, describing the new panel as unbreakable, reports that it has withstood UL's military-standards tests of 26 successive drops from a height of 1.2 meters (close to 4 feet) as well as extreme temperatures as high as 71 degrees Celsius (159.8 degrees Fahrenheit) and as low as -32 degrees Celsius (-25.6 degrees Fahrenheit). The OLED display "continued to function normally with no damage to its front, sides, or edges," we're told, and Samsung even went further by performing a successful drop test from 1.8 meters (6 feet).
Robotics

Slashdot Asks: Which is Better, a Basic Income or a Guaranteed Job? (timharford.com) 899

Barack Obama said this month that AI research is accelerating, making it harder to find jobs for everybody, and concluding "we're going to have to consider new ways of thinking about these problems, like a universal income."

But a Financial Times columnist adds that "an intriguing debate has broken out over how to look after disadvantaged workers both now and in this robot future. Should everyone be given free money? Or should everyone receive the guarantee of a decently-paid job?" An anonymous reader quotes some of the highlights: Psychologists have found that we like and benefit from feeling in control. That is a mark in favour of a universal basic income: being unconditional, it is likely to enhance our feelings of control. The money would be ours, by right, to do with as we wish. A job guarantee might work the other way: it makes money conditional on punching the clock. On the other hand (again!), we like to keep busy. Harvard researchers Matthew Killingsworth and Daniel Gilbert (UK) (US) have found that "a wandering mind is an unhappy mind". And social contact is generally good for our wellbeing. Maybe guaranteed jobs would help keep us active and socially connected.

The truth is, we don't really know... It is good to see that the more thoughtful advocates of either policy -- or both policies simultaneously -- are asking for large-scale trials to learn more.

He titled the column "The secret to happiness after the robot takeover." But what say Slashdot readers?

Is it better to be given a basic income -- or a guaranteed job?
Open Source

Nvidia, Western Digital Turn to Open Source RISC-V Processors (ieee.org) 95

An anonymous reader quotes IEEE Spectrum: [W]hat's so compelling about RISC-V isn't the technology -- it's the economics. The instruction set is open source. Anyone can download it and design a chip based on the architecture without paying a fee. If you wanted to do that with ARM, you'd have to pay its developer, Arm Holding, a few million dollars for a license. If you wanted to use x86, you're out of luck because Intel licenses its instruction set only to Advanced Micro Devices. For manufacturers, the open-source approach could lower the risks associated with building custom chips.

Already, Nvidia and Western Digital Corp. have decided to use RISC-V in their own internally developed silicon. Western Digital's chief technology officer has said that in 2019 or 2020, the company will unveil a new RISC-V processor for the more than 1 billion cores the storage firm ships each year. Likewise, Nvidia is using RISC-V for a governing microcontroller that it places on the board to manage its massively multicore graphics processors.

Power

Can Hoover Dam Become a Giant $3B Battery? (cleantechnica.com) 219

The Los Angeles Department of Water and Power wants to spend $3 billion to pump back the water that's flowing through Hoover Dam -- so it can flow through again later, during periods of peak energy demand. This generates a net profit for the dam's operators -- the pumping stations are powered by cheap solar and wind energy, while the dams are currently operating at just 20% of their capacity. An anonymous reader quotes Clean Technica: The problem is that California has so much renewable energy available now, thanks in large measure to aggressive state mandated policies, that much of it is "constrained." That's utility industry speak for having to give it away or simply let it go to waste. In some cases, utilities in California actually pay other utility companies to take the excess electricity off their hands.

Why not store it all in some of Elon Musk's grid scale batteries? Simply put, pumped hydroelectric storage is cheaper than battery storage, at least for now. Lazard, the financial advisory and asset management firm, estimates utility scale lithium-ion batteries cost 26 cents per kilowatt-hour compared with 15 cents for pumped hydro storage. "Hoover Dam is ideal for this," Kelly Sanders, an assistant professor of civil and environmental engineering at the University of Southern California tells the New York Times. "It's a gigantic plant. We don't have anything on the horizon as far as batteries of that magnitude."

Privacy

Canadian Malls Are Using Facial Recognition To Track Shoppers' Age, Gender Without Consent (www.cbc.ca) 80

At least two malls in Calgary are using facial recognition technology to track shoppers' ages and genders without first obtaining their consent. "A visitor to Chinook Center in south Calgary spotted a browser window that had seemingly accidentally been left open on one of the mall's directories, exposing facial-recognition software that was running in the background of the digital map," reports CBC.ca. "They took a photo and posted it to the social networking site Reddit on Tuesday." From the report: The mall's parent company, Cadillac Fairview, said the software, which they began using in June, counts people who use the directory and predicts their approximate age and gender, but does not record or store any photos or video from the directory cameras. Cadillac Fairview said the software is also used at Market Mall in northwest Calgary, and other malls nationwide. Cadillac Fairview said currently the only data they collect is the number of shoppers and their approximate age and gender, but most facial recognition software can be easily adapted to collect additional data points, according to privacy advocates. Under Alberta's Personal Information Privacy Act, people need to be notified their private information is being collected, but as the mall isn't actually saving the recordings, what they're doing is legal. It's not known how many other Calgary-area malls are using the same or similar software and if they are recording the data.
Robotics

Should Bots Be Required To Tell You That They're Not Human? (buzzfeednews.com) 92

"BuzzFeed has this story about proposals to make social media bots identify themselves as fake people," writes an anonymous Slashdot reader. "[It's] based on a paper by a law professor and a fellow researcher." From the report: General concerns about the ethical implications of misleading people with convincingly humanlike bots, as well as specific concerns about the extensive use of bots in the 2016 election, have led many to call for rules regulating the manner in which bots interact with the world. "An AI system must clearly disclose that it is not human," the president of the Allen Institute on Artificial Intelligence, hardly a Luddite, argued in the New York Times. Legislators in California and elsewhere have taken up such calls. SB-1001, a bill that comfortably passed the California Senate, would effectively require bots to disclose that they are not people in many settings. Sen. Dianne Feinstein has introduced a similar bill for consideration in the United States Senate.

In our essay, we outline several principles for regulating bot speech. Free from the formal limits of the First Amendment, online platforms such as Twitter and Facebook have more leeway to regulate automated misbehavior. These platforms may be better positioned to address bots' unique and systematic impacts. Browser extensions, platform settings, and other tools could be used to filter or minimize undesirable bot speech more effectively and without requiring government intervention that could potentially run afoul of the First Amendment. A better role for government might be to hold platforms accountable for doing too little to address legitimate societal concerns over automated speech. [A]ny regulatory effort to domesticate the problem of bots must be sensitive to free speech concerns and justified in reference to the harms bots present. Blanket calls for bot disclosure to date lack the subtlety needed to address bot speech effectively without raising the specter of censorship.

Security

Ask Slashdot: How Do You Handle Hardware That Never Gets Software Updates? (hpe.com) 233

New submitter pgralla writes from a report via HPE: Many devices, designed for both long-term and short-term use, were shortsighted when it came to flexibility. How do you handle the hardware that never gets software updates, such as embedded systems and task-dedicated equipment? The article that pgralla shared provides the example of medical devices running Windows 7. "Many of the current generation, when they were first released, used Windows 7, and the devices still work well enough that they remain in service today," reports HPE. "But Microsoft ended mainstream support for Windows 7 back in January 2015, so the operating system gets updated only with an occasional security patch as part of Microsoft's extended support. In January 2020, that extended support will end as well." Many IoT devices are in a similar boat as they're powered by embedded Linux and are not designed to be updated after they enter service."

Of course, these outdated devices create all sorts of security concerns. "Hackers and their access to knowledge and computing power only go up as the years pass, which means that long-lived, fixed-firmware devices become ever more insecure over time," says Michael Barr, founder of the Barr Group, which provides engineering and consulting services for the embedded systems industry. The WannaCry ransomware hack in 2017 affected not just PCs but also medical devices, and ended up costing businesses $4 billion.
Intel

Leaked Benchmarks Suggest Intel Will Drop Hyperthreading From Core i7 Chips (arstechnica.com) 199

According to leaked benchmarks found in the SiSoft Sandra database, there is an Intel Core i7-9700K processor that doesn't appear to have hyperthreading available. "This increases the core count from the current six cores in the 8th generation Coffee Lake parts to eight cores, but, even though it's an i7 chip, it doesn't appear to have hyperthreading available," reports Ars Technica. "It's base clock speed is 3.6GHz, peak turbo is 4.9GHz, and it has 12MB cache. The price is expected to be around the same $350 level as the current top-end i7s." From the report: For the chip that will sit above the i7-9700K in the product lineup, Intel is extending the use of its i9 branding, initially reserved for the X-series High-End Desktop Platform. The i9-9900K will be an eight-core, 16-thread processor. This bumps the cache up to 16MB and the peak turbo up to 5GHz -- and the price up to an expected $450. Below the i7s will be i5s with six cores and six threads and below them, i3s with four cores and four threads. Even without hyperthreading, the new i7s should be faster than old i7s. A part with eight cores is going to be faster than the four-core/eight-thread chips of a couple of generations ago and should in general also be faster than the six-core/12-thread 8th generation chips. Peak clock speeds are pushed slightly higher than they were for the 8th generation chips, too.
Data Storage

Scientists Perfect Technique To Create Most Dense, Solid-State Memory in History that Could Soon Exceed the Capabilities of Current Hard Drives By 1,000 Times (newatlas.com) 176

New submitter weedjams shares a report: Scientists at the University of Alberta have demonstrated a new data storage technique that stores zeroes and ones by the presence (or absence) of individual hydrogen atoms. The resulting storage density is an unparalleled 1.2 petabits per square inch -- 1,000 times greater than current hard disk and solid state drives, and 100 times greater than Blu-rays. The researchers, led by PhD student Roshan Achal and physics professor Robert Wolkow, built on a technique previously developed by Walkow that used the tip of a scanning tunneling microscope (STM) to remove or replace individual hydrogen atoms resting on a silicon substrate.

The inconceivably small dimensions (a hydrogen atom is only half a nanometer in diameter) allow for an astounding data storage density of 1.1 petabits (138 terabytes) per square inch. By comparison, a Blu-ray disk can "only" store about 12 terabits of data in the same area (one hundredth the data density), while both traditional magnetic hard drives and solid-state drives store somewhere in the region of 1.5 terabits per square inch (a thousandth of the density). This development, says Achal, could allow you to store the entire iTunes library of 45 million songs on the surface of a US quarter-dollar coin.

Achal and his team demoed the technology by creating a 192-bit cell, which they used to store a simple rendition of the Super Mario Bros video game theme song. To show the rewrite capabilities, the scientists also created an 8-bit memory cell which they used to store the letters of the alphabet one by one, represented via their respective ASCII code.
Further reading: ScienceDaily, and Nature.

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