BlogHotel.orgAccueil | Créer un blog | Imprimer la page Imprimer | Blog hasard Au hasard | Chercher des blogs Rechercher | Entrer dans le chat du blog Chat | | Jeux Jeux | Adminitration et édition du Blog Manager

Accueil - Profil - Archives - Amis

Samsung r478 Battery

Posté le 17/11/2017 à 16:33 - 0 Commentaires - poster un commentaire - Lien

The team developed a prototype where bendy batteries are tucked into watch straps to supplement and provide "significantly improved" life to the main lithium ion battery.The ten researchers say, in a paper titled Software Defined Batteries (PDF) that the system is part hardware part software, the former offering granular control of power flowing through each battery thanks to "smart switching circuitry", and the latter being an element of the operating system that runs algorithms, policies, and APIs for increasing single charge-discharge duration and battery life."A growing range of battery chemistries are under development, each of which delivers a different set of benefits in terms of performance. We believe that combining multiple of these heterogeneous batteries instead of using a single battery chemistry can allow a mobile system to dynamically trade between their capabilities and thereby offer attractive tradeoffs. ...In current designs, the interactions between the OS and Power Management Integrated Circuit are limited to query operations, such as inquiring about remaining charge in the battery, terminal voltage or the cycle count … Through the SDB system, we propose enabling fine grain control over the behavior of hardware sub modules by exposing a richer software API to the OS to dynamically change the amount of charge to be drawn from or provided to each batteryies."

Users can login on a single device if it allows the web browser and the Sound-Proof app concurrent access to the phone microphone.The researchers say the platform can also be used as a form of continuous authentication, and sports brute-force rate limiting and maintains logs of login attempts.Pic Google’s Chromebooks are just over four year old and, while the hardware has done well in education, businesses and normal people haven’t been too keen.In response, the ad giant has teamed up with Dell to fix this with a line of Chromebooks for business. Rajen Sheth, director of product management for Android and Chrome for Business and Education, said that with businesses updating from Windows XP, there’s an opportunity for Google to pick up some market share.“This is a long term move from legacy systems,” Kirk Schell, Dell’s GM for commercial client solutions, told a press conference in San Francisco on Thursday. “It’s going to be a long process, which is why you’ll see Google apps running alongside legacy apps via virtualization.”

The Dell Chromebook 13 (for the size, not for luck) is a carbon fiber and magalloy machine that has the look of a premium laptop and weighs in at a reasonably portable 3.23lb, with the touchscreen adding a third of a pound to that. The device has seven configurations, ranging between $399 and $899 in price, and runs Intel Celeron, Core i3 and Core i5 processors, 2, 4 or 8GB of RAM, and either a 16 or 32GB SSD.The laptops have two USB ports (one version 2.0 and one 3.0), an HDMI socket, and a microSD card for removable storage. It runs 801.11AC Wi-Fi, Bluetooth, and has a variety of add-on dongles for Ethernet and serial ports.The battery life is a claimed 12 hours minimum, and that’s on the base-spec model, Schell said. The devices go on sale on September 17 from Dell and Google’s online shop.The hardware is all well and good, but in order to convince businesses to dump Windows machines and go to ChromeOS, Google and Dell have focused on software.The Chromebook 13s have been set up to run Windows and legacy apps via VMWare, Dell vWorkspace, or Citrix’s Chrome receiver. For storage, considering the piddling size of the hard disk, there’s Google Drive, of course, but also support for Box, Dropbox, or OneDrive.

Google and Dell are also selling this on the basis of easy IT management. A central console allows administrators to control the rollout of operating system updates, security protocols, passwords, and user interface changes on a company-wide, workgroup, or individual basis.The simplified IT management structure of the ChromeOS is how Google sold these systems from the beginning, and while it isn’t perfect, it’s still a hell of a lot easier (and less expensive) to manage a Chromebook fleet rather than a swathe of Windows beige boxes and laptops.One of the traditional weaknesses of Chromebooks is their distressing tendency to become mostly useless when out of range of an internet connection. Sheth said that this too had been addressed by the latest builds of the ChromeOS.“We’re seeing a good amount of sophistication in offline use of web apps,” he explained. “Google apps are all available offline by default on these devices, and we’re seeing many other web apps working on that too. Also we have android apps now being able to be ported to Chromebooks, and a lot of those are designed to be inherently offline.”El Reg will be getting one of the new systems in for review. The new laptop looks all right, with a few caveats.

Certainly, it looks good enough to take into a pitch meeting and the connectivity is fine. The keyboard is frankly a bit small compared to something like the higher-end Pixel model, but it's still usable.It remains to be seen how companies are going to find the software side of things. No doubt many companies are sick to the back teeth of Windows, but moving across to Google is a serious shift that some may balk at. Exclusive EE failed to label its "Power Bar" phone charging devices with the correct marking to show that the product complied with European safety directives, The Register has learned.The embarrassing cockup comes after we revealed that EE management had been warned about safety risks with its Power Bar, ahead of its launch in April this year. Since then, 1.5 million such devices have been dished out for free to the company's customers – but a recall affecting hundreds of thousands of units is now under way, after a Power Bar exploded, injuring a 26-year-old medical student.Late last month, Katy Emslie suffered burns to her hands and spent five hours in A&E and had plastic/re-constructive treatment after her Power Bar, which was charging from her laptop, blew up in the middle of the night while she slept.

That incident eventually prompted EE to recall around 500,000 Power Bars. The UK's largest mobile operator said that only some of its chargers posed a potential fire risk and blamed a faulty batch of models labelled "E1-06."El Reg saw internal documents that made it clear that serious safety concerns regarding the Power Bar had been raised at the company before the device was launched. However, when EE was quizzed by us, it had this to say:"We strongly refute any suggestion that safety concerns were ignored or dismissed without careful consideration. The product was subject to a rigorous testing process by our safety and products teams, and all EE Power Bars meet EC electrical safety standards."Now, it has come to The Register's attention that the CE marking (which stands for European Conformity) affixed to the device doesn't adhere to the specific European Union rules.Those measures detail the required layout of the CE marking, but we've discovered that EE failed to comply. Furthermore, we're told that the labelling cockup has been spotted on batches of the device that haven't been recalled.

Worse still, EE was first told about the dodgy CE marking back in April – not long after the product was launched as part of a big marketing blitz.EE had promised "never-ending power" for its millions of customers by offering them free Power Bars, which – prior to the programme being mothballed following the recall – allowed them to collect the chargers from the company's retail outlets. The devices could then later be returned to be recharged, swapping for a freshly-charged Bar.Early in the project, EE carried out a risk review through its own safety and sustainability team. It claimed risks had been assessed and that the product met legal requirements, including European battery regulations. But it is unclear how detailed that exercise was.Specific concerns raised within EE in the documents seen by The Register included variable quality in the cells used in manufacture, a risk that the Power Bar could easily be overloaded and catch fire if used with a faulty cable, lack of measures to ensure that Power Bars circulating among EE's users and shops would remain within their safe lifespan, a risk that bars being charged en masse in shops might suffer "thermal runaway" and burn down buildings, and other dangers.

In light of those serious safety concerns, EE will undoubtedly be red-faced about this latest blunder with its controversial Power Bar devices.El Reg pressed the mobile carrier for answers about its CE marking gaffe. We asked the company if it would let us take a look at the so-called "Declaration of Conformity" paperwork for the Power Bar, which would have been required to be created prior to any CE marking being applied to the product.However, EE declined to provide us with that information. It also failed to explain how the labelling error had occurred in the first place. Why, for example, was it not spotted during the operator's "rigorous testing process"?The UK government has warned firms of the pitfalls of slapping inaccurate CE markings on products. It said:If an enforcement body finds your product does not meet CE marking requirements, they will often provide you with an opportunity to ensure it is correctly CE marked.If you fail to comply with this, you will be obliged to take your product off the market. You may also be liable for a fine and imprisonment.

An EE Power Bar with the wrong CE marking from a different batch to those models that have been recalled. Pic credit: Joseph Heenan It's also worth noting that the so-called "Chinese Export" marking – which some people attribute to products manufactured in China – is about as real as the existence of a unicorn, as this response from the European Commission explained back in 2008.Analysis Lenovo has sold laptops bundled with unremovable software that features a bonus exploitable security vulnerability. If the crapware is deleted, or the hard drive wiped and Windows reinstalled from scratch, the laptop's firmware will quietly and automatically reinstall Lenovo's software on the next boot-up.Built into the firmware on the laptops' motherboard is a piece of code called the Lenovo Service Engine (LSE). If Windows is installed, the LSE is executed before the Microsoft operating system is launched.The LSE makes sure C:\Windows\system32\autochk.exe is Lenovo's variant of the autochk.exe file; if Microsoft's official version is there, it is moved out of the way and replaced. The executable is run during startup, and is supposed to check the computer's file system to make sure it's free of any corruption.

Lenovo's variant of this system file ensures LenovoUpdate.exe and LenovoCheck.exe are present in the operating system's system32 directory, and if not, it will copy the executables into that directory during boot up. So if you uninstall or delete these programs, the LSE in the firmware will bring them back during the next power-on or reboot.LenovoCheck and LenovoUpdate are executed on startup with full administrator access. Automatically, and rather rudely, they connect to the internet to download and install drivers, a system "optimizer", and whatever else Lenovo wants on your computer. Lenovo's software also phones home to the Chinese giant details of the running system.To pull this off, the LSE exploits Microsoft's Windows Platform Binary Table (WPBT) feature. This allows PC manufacturers and corporate IT to inject drivers, programs and other files into the Windows operating system from the motherboard firmware.

Samsung r41 Battery

Posté le 17/11/2017 à 16:24 - 0 Commentaires - poster un commentaire - Lien

HP will soon release a special Star Wars edition laptop it says will allow you to “Unleash your inner Sith”.And no, it's not making that claim solely based on the presence of Windows 10. The machine boasts styling based on the Lucasverse and is pre-loaded with oodles of Star Wars content including “rare wallpapers, screen savers, concept art, and original trilogy storyboards”. Plugging in a USB device apparently produces a burst of R2-D2's trademark clicks and whistles. Other actions result in the clash of lightsabers ringing out from the machine's Bang & Olufsen speakers.“The Galactic Empire lives on in the battle-worn design of this unique special edition notebook”, HP gushes, as it extols the virtues of the “dark side inspired” machine.There's even a font for “Aurebesh”, apparently the Lucascerse's Galactic Base Standard language, presumably for those tired of learning Klingon.When HP announced it would split into enterprise and printer/PC entities, it promised the latter entity would deliver “new computing experiences - inventing technology that empowers people to create, interact and inspire like never before.”

Is a Sith-inspired laptop delivering on that promise? Or just a way to make a US$699 laptop with specs that won't excite serious gamers (Core i5, 12GB RAM, GeForce graphics, a DVD reader/writer) a little bit more interesting? The buttons, labelled with emojis, cover common feelings such as excitement, sadness, anger, and so on and will be made available first to users in Spain and Ireland. Facebook will look at feedback and decide whether to roll the feature out further.The company's chief product officer Chris Cox posted a video to his public Facebook feed to show how the process would work on a mobile phone.While Facebook's response is a novel one and more expansive than simply providing a "Dislike" button that people have been bugging the social media company to roll out for a number of years, some feel that the new emojis are a little too restrictive.While fun, the new options are unlikely to capture the most frequent responses that Facebook users wish to append to their friends and complete strangers' posts, depending on their privacy settings and whatever Facebook has decided it wants people to see that week.

Such is the importance of Facebook to society's well-being, however, that we at The Register decided to carry out extensive research and customer modeling using the most recent techniques in cutting-edge design fabrication to provide an enhanced experience for users – and provide the results of that work, for free, to Mr Zuckerberg and his glorified curtain-twitchers.Comment The days of the massive standalone storage company are coming to a close, as the public cloud and myriad storage startups drive cumulatively fatal wounds deep into the heart of the one-supplier-does-all-your-storage business model.The all-you-need, best-of-breed storage supplier days are ending as enterprises realize they can get better or cheaper or simpler or more integrated storage, or several of these attributes, by revolutionizing their on-premises storage and moving some or all of it to the public cloud.All mainstream storage suppliers are affected though, not just the stand-alone ones.Traditional, on-premises storage costs and over-consumption of limited enterprise IT resources are being seen as unbearable yet fixable problems, with the fixes tearing the heart out of traditional, mainstream, on-premises enterprise IT suppliers' businesses.

The idea of EMC merging with HP or Dell or selling its VNX line to Dell is only the latest manifestation of this.A problem for these suppliers is that many changes are going on at once, some short-term and some long-term or secular. The biggest secular change is the rise of the public cloud with three giants emerging: Amazon, Azure (Microsoft), and Google. Each is reporting growing customer usage of their clouds for compute and for storage.There are vertical application clouds as well, such as and, much lower down the scale, ambitious file sharers like Dropbox and Box. Some of this public cloud-use is cloud-bursting – the temporary use of the public cloud for one-off, short-term needs – but the rest is pretty permanent. Most customers intend to carry on using it and no longer have on-premises IT resources for their CRM-type applications.

That is the simple public cloud threat; on-premises IT is hollowed out, leaving desktop, laptop, and hand-held endpoints behind, accessing remote, in-cloud IT resources. Off-premises IT is not supplied by mainstream, on-premises IT suppliers. But this is extreme and will take years to come to pass, if it does, with on-premises IT being a multi-billion dollar market for decades yet.In the on-premises storage area, there are many many changes too, some of them totally focused on-premises, such as the move to all-flash arrays, a trend to detach storage software from hardware, newer hybrid arrays with much better software, and converged and hyper-converged server hardware and software/storage/networking systems.But these replace legacy products in what is looking like a slowly growing pool – the on-premises IT market. As the myriad storage startups grow, they will eventually face the same problem as the mainstream suppliers are facing now: the business system they pitched for last year has either gone to the public cloud or to a newer start-up technology and the opportunity has vanished.Once the startups have collectively taken all the business they can from the existing vendors, and exist in a state of stable competition with them and their uprated product (think EMC and XtremIO, for example), then they could be playing public cloud musical chairs.

The chairs are business applications, and each time the music stops another application has gone to the cloud and there are fewer chairs (sales opportunities) for the suppliers, so someone has to leave the game.For suppliers, the judgements they have to make include asking which changes coming are most severe for me? How fast are they coming? What is the impact on my business?Analysis “Someone out there must have a family,” Panos Panay remarked yesterday, surveying his audience of potato-shaped gadget bloggers. An optimistic view, I thought. Panay was presenting Microsoft’s Devices event in New York, an event designed to get bloggers’ juices running.Years ago, I was in a MacWorld audience for a Steve Jobs keynote, where the fans even applauded a price increase. But this was far more hysterical. I suspect Microsoft execs had prepared for the event by watching Team America World Police. Several times they told us how “pumped” they were. Thanks for sharing – we might have guessed by the veins throbbing, Hulk-style, on your temples. Maybe next year the Microsoft Devices Event will simply be called, “Surface, Fuck Yeah!” That’s really what this year’s should have been called, it was so aggressive, and single-minded.

Partly this is a function of changes in the tech media. 15 years ago the tech press attending Microsoft presentations wore the same generic uniform as the presenters: a regulation blue Gap shirt (no tie) tucked into Chinos. Now that so many publications have gone, taking the cooler and more analytical voices with them, the audience is predominantly poorly paid, hormonal and adolescent. Some even write for no pay at all – events like this are their big thrill. So the timbre has changed too.Let’s look past the chest-beating and testosterone, though, and see what we really learned.This was a hardware event, and it had an explicit goal and an unspoken one. The obvious goal was to showcase Microsoft’s hardware, not counting Xbox. The unspoken goal was to hide the software, which is in (to put it kindly) a stage of transition. Microsoft achieved both, managing to hide Windows 10 almost completely. Phew!Analysis If there's one message that stands out from Microsoft's big device day launch on Tuesday it's this: stop thinking about Redmond as the cheap option, because it wants to be seen as the premium brand.For years Microsoft has sold itself as the dominant ecosystem for computing that won't cost you too much. The device day focus, however, shows that Microsoft is intent on going after the big spenders in the IT industry.

Take the Surface Book, for example. Again and again Microsoft hammered the message that this was the ultimate laptop, with no expense spared. That's reflected in the price – $1,500 will get you the base unit but you can spent nearly three grand on a top-of-the-range system with dual graphics chips and a terabyte of solid state storage.That's a hell of a lot for a laptop. You can pick up a good-enough laptop for a tenth of the price of a top-of-the-range Surface Book running Windows. But there's a market for people willing to spend a fortune on top-spec hardware, both in the gaming market and also for the executive who likes to show off a bit.As for fondleslabs, the Surface Pro 4 is an expensive option for a tablet, which is why Microsoft has always billed it as a PC that just happens to be in tablet form. While $899 is the base price, when you add in the keyboard, a bit more storage, RAM, and the pen you're well into four figures.

The same is true for phones. The Lumia 950 and 950XL were promoted (and priced) to compete with the highest-end cellphones on the market and billed as a possible replacement for PCs. Buy a docking station to go with it and the phones can handle 90 per cent of the applications most people use most of the time.By contrast, the lowly Lumia 550 got little love from Redmond. It merited a couple of sentences in the long presentation and was reduced to a "if you want to try Windows 10 on the phone it's a cheap option." There's just one problem with this strategy – other people have got there first and they'll be a bugger to dislodge.When it comes to expensive hardware, Apple has ruled the roost for a long time. The MacBook, iPad, and iPhone lines are pricey, albeit with a very high-quality build and the apps to match. Cook & Co have earned serious coin with high-end hardware and will cling onto the sector like rabid weasels.The Surface Book also takes aim at Alienware, although that's a longer-term play. The dual graphics capability of the laptop will match the Dell subsidiary's best laptops (once software that can take advantage of the hardware has been written), and gamers are notorious/beloved by vendors for being willing to spend big bucks on the right kit.

Microsoft wants a piece of both companies' markets, although the Apple bashing was more in evidence at yesterday's show in New York City – possibly because Microsoft has a financial stake in Dell and it's one of the firm's favorite partners.Engineers from Microsoft, Tesla, and Columbia and Massachusetts universities have teamed up to develop what on paper looks like a revolution in consumer battery technology that meets demands for fast charge, long life, and the ability to bend.The "Software-Defined Battery" system allows different batteries with different chemistries to be integrated into the same system. Fast charging and the ability to work for longer by adapting to different tasks are the result of the blended battery plan.Energy consumption rates can even be predicted, based on learned user behaviour.The team says these arrangements overcome current trade-offs in black-box batteries that mean no one single type can meet all common user requirements, such as the need for a laptop to last over long-haul flights or to deliver quick bursts of power in applications like starter motors or camera flashes.Delivering bendable batteries for us in wearables is also said to be possible using the new heterogeneous system.

« Précédent :: Suivant »