Thursday, August 19, 2010

Are Solid-State Drives Worth the Money? [Ask Lifehacker]

Source: http://lifehacker.com/5616104/are-solid+state-drives-worth-the-money

Are Solid-State Drives Worth the Money?Dear Lifehacker,
I'm considering ordering a MacBook Pro with a solid-state drive. Is it really worth it to dish out the extra few hundred bucks for one?

Sincerely,
Deciding on Drives.

Dear Deciding on Drives,

Solid-state drives (SSDs) make for a pretty great upgrade, but they aren't without their downsides (most notably, their high cost and low amounts of space). While the answer to "are they worth it?" is fairly subjective, there are a number of factors that can influence the usefulness of a solid-state drive.

What Is a Solid-State Drive?

Are Solid-State Drives Worth the Money?

Photo by Gillyberlin.

Traditional hard drives are made up of a spinning disk and a magnetic, movable read/write head. Solid-state drives, on the other hand, use microchips to store data, just like portable USB flash drives. Thus, they have no moving parts, and are much quieter, more durable, and faster than regular drives.

Speed is their biggest advantage. Not only do they have much faster read times since there is no moving head, but they also start up faster because they don't need to spin. Also, since the physical location of data doesn't matter on SSDs, read speeds is consistent no matter where your data is stored, and disk fragmentation isn't really a problem. In addition, they use up less power than regular drives, so in a laptop, they'll also afford you a bit of extra battery life. All these things make them a pretty great upgrade to your computer, but they aren't necessarily worth it for everyone.

Who Will Benefit Most From Solid-State Drives

Are Solid-State Drives Worth the Money?

Because they can access and read data very quickly, you'll find that the biggest visible advantages of an SSD are fast boot-ups and application starts. Thus, they are the most useful if you're the type of person that likes to launch a lot of applications, or launch certain slow-loading applications such as Adobe Photoshop. In addition, if you find yourself restarting your computer a lot (perhaps because you dual-boot), you'll be happy with the decreased boot time of an SSD, lessening the time you spend waiting for your computer to start up and increasing the time you can spend working.

On the other hand, if you tend to just use your computer to check email on the web or write documents, you won't notice the benefits of an SSD as much. Web sites won't load any faster, and if you're only launching your browser and one or two other applications, it probably isn't worth the upgrade to have them launch a few seconds faster.

Consider Size and Cost

Are Solid-State Drives Worth the Money?Note that, while those are the characteristics that will decide whether you benefit, there are other things to consider. Most notable are the size and cost of solid-state drives. My 80GB SSD cost a whopping $200, and if you need a lot of space for your music and other files, you'll be paying even more. A better set-up is to put your OS and applications on the SSD, while having a second, regular hard drive for all your data. This is easy in a desktop computer, but requires a bit of work for a laptop, since most laptops only have one hard drive bay. It isn't impossible, but if you're not comfortable digging around inside your computer you'll have to decide whether your data will fit (or whether you're ready to shell out an arm and a leg for a large enough drive).

Those are the most important things to think about. I personally upgraded to an SSD earlier in the year, and it was one of the best upgrades I've made to my computer, because I run a lot of native clients instead of webapps (e.g., I get my email in Postbox rather than Gmail, and listen to music in iTunes instead of on GrooveShark). I also reboot my computer often and launch about 10 applications on startup alone, so the 5 to 10 seconds that now takes for them to load is quite a step up from the minute it used to take. My brother, on the other hand, does almost everything in webapps, running nothing but Google Chrome and iTunes at any given time (and leaving his computer on for a week or more without restarting). Thus, a solid-state drive would probably be a waste of money for him—it all depends on your workflow. If you do end up getting one, be sure to check out how to install it in your laptop as a second drive, as well as how to take full advantage of your SSD.

Sincerely,
Lifehacker

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Thirty-Year-Old Encryption Formula Can Resist Quantum-Computing Attacks That Defeat All Common Codes [Encryption]

Source: http://gizmodo.com/5615939/thirty+year+old-encryption-formula-can-resist-quantum+computing-attacks-that-defeat-all-common-codes

Thirty-Year-Old Encryption Formula Can Resist Quantum-Computing Attacks That Defeat All Common CodesThe core advantage of quantum computing — the ability to compute for many possible outcomes at the same time and therefore crunch data much more quickly than classical computers — also creates a problem for data security.

Once the first high-powered quantum computers are functioning, they'll be able to quickly saw through many of our most common data encryption algorithms. But as it turns out, an obscure encryption code created in 1978 is resistant to all known methods of quantum attack.

Hang Dinh at the University of Connecticut and a few colleagues figured out that CalTech mathematician Robert McEliece's code is structured in such a way that a quantum computer couldn't just pull it apart, at least not by any known process. Rooted in a mathematical puzzle called the hidden subgroup problem, standard quantum fourier analysis simply can't crack the code.

What does all that mean? For a more extensive mathematical explanation, click through to Tech Review's more thorough and astute review of quantum encryption. But in summary, encryption is often conducted using asymmetric codes, meaning there's a public key that anyone can use to encrypt data and a private key for decrypting it. The basis of these encryption schemes is math that flows easily in one direction but not so easily in the other.

Such asymmetric code can be tricky for a classical computer to figure out but quantum computers are well suited to such work. To take a simple example, say a message was encrypted using basic multiplication — one number is multiplied by a number to get a third number. It's not so easy to look at the third number and quickly determine the two numbers that spawned it.

In math, the process of doing this is called factorizing, and mathematicians factorize through a quality called periodicity — the idea that a mathematical entity with the right periodicity will divide an object correctly while others will not. In 1994, a mathematician created an algorithm that does this very well, and that shortcut to finding periodicity has a quantum analogue known as quantum fourier sampling. Using fourier sampling, quantum computers can quickly factorise codes, rendering most of our most common encryption schemes useless.

But McEliece's little-used code doesn't rely on factorization, meaning quantum fourier analysis can't break it down. That means it's essentially impervious to all known forms of quantum attack. That's not to say that new modes of quantum hacking won't be developed to decrypt McEliece's system, but it's interesting that while standing at the threshold of a new era of computing power researchers are finding solutions that can keep our data safe more than three decades in the past. [Technology Review]

Thirty-Year-Old Encryption Formula Can Resist Quantum-Computing Attacks That Defeat All Common CodesPopular Science is your wormhole to the future. Reporting on what's new and what's next in science and technology, we deliver the future now.

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12 Sci-Fi Landscapes Found Right Here on Earth [Photography]

Source: http://gizmodo.com/5616024/12-sci+fi-landscapes-found-right-here-on-earth

12 Sci-Fi Landscapes Found Right Here on EarthMy favorite thing about sci-fi stories are the otherwordly settings in which they take place, whether they're on distant alien planets or Earth in some strange future. But you can find some incredible, surreal landscapes right here, right now:

These shots, taken over the last decade by photographer Allison Davies, comprise Outerland, a stunning photographic collection of some of Earth's most mysterious and meditative locations.

Davies' personal history doesn't do anything to lessen the mystery: many of the photographs were taken while she worked as a private eye for a law firm in Manhattan. Davies herself can be seen in some of the shots in a Tyvek spacesuit, the same material with which the book is bound. A system of symbols runs throughout the pages of the book, which deliberately leave out descriptions, captions, or the locations of the landscapes.

You can buy a hardcover edition of Outerland from Charles Lane Press for $110. [Outerland via Wired]

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Two More 3DTVs from Sony, in That Swish Monolithic Design [3dTv]

Source: http://gizmodo.com/5616473/two-more-3dtvs-from-sony-in-that-swish-monolithic-design

Two More 3DTVs from Sony, in That Swish Monolithic Design3DTV is still to catch on, but Sony's already churning out more Bravia models before the year is out—the NX713 and NX813. They're of that beautiful "monolithic" design (stand sold separately!) and are slimmer with smaller bezels.

A few details are listed in the press release below, but we're still waiting on the nitty-gritty. In the meantime, I can tell you they've got dynamic edge LED backlighting, and on the NX713 Motionflow 100Hz Pro, and Motionflow 200Hz Pro for the NX813. Both models have a base-mounted 2.1 system, and can be adjusted at a 6-degree viewing angle.

Hold out for the full tech specs, along with dating and pricing, which I've already asked Sony for.

UPDATE: The NX713 has gone live on Sony's UK website, with specs here.

Weybridge, August 19, 2010

The new BRAVIA® 3DTVs NX713 and NX813:
Bringing style and connectivity to the 3D experience
Sony extends its BRAVIA 3D line-up with two new network models that combine 3D capability, connectivity and elegant design

• Featuring BRAVIA Internet Video - for on-demand, online entertainment
• Full High Definition 3D – just add a 3D Sync Transmitter and glasses to enjoy a new dimension in television
• Transform your living space - with the slim and stylish Monolithic Design

Get ready for the 3D revolution
3D entertainment has moved out of the cinema into the Living Room, and the Sony EISA award winning 3D BRAVIA TVs are leading the way.

All 3D BRAVIA TVs are supported by a rapidly increasing variety of 3D content, including the latest Hollywood movies on Blu-ray 3D™ disc such as Sony Pictures Home Entertainment's Cloudy With a Chance of Meatballs; sport, music, natural history and entertainment from new 3D cable and satellite channels; even 3D games such as WipEout®HD and MotorStorm® Pacific Rift for the PlayStation®3.

Even in 2D, these TVs offer amazing HD picture quality. With Dynamic Edge LED backlighting and Motionflow 100Hz Pro (NX713) or Motionflow 200Hz Pro (NX813), the resulting ultra high contrast images are incredibly sharp and smooth.

Watch what you want, when you want
BRAVIA Internet Video puts the viewer in control of a world of online, on-demand video – delivered straight to the television screen with no need for a PC. From catch-up TV to video sharing sites like YouTube™, plus exclusive content like the FIFA World Cup™ Collection and streaming movies from LOVEFiLM, it's never been easier to enjoy what you want, when you want - with new content and video channels being added to BRAVIA Internet Video all the time.

BRAVIA Internet Widgets allows the viewer to see what friends are up to with updates from sites like Twitter™ and Facebook™, view photos from Flickr™ – all via the TV screen.

Transform your living room
Monolithic Design means a new way of thinking about how the TV fits into the living room. These televisions look amazing even when not switched on – plus the slim screen with concealed, touch sensitive controls means nothing interrupts the smooth surface finish.

The NX713 and NX813 both have a new, even slimmer design - including a smaller bezel around the TV's screen.

To complement the NX713 or NX813, a new optional designer stand offers an even more elegant way to set the TV at the perfect 6° viewing angle - and with a 2.1 sound system mounted in the base, enhanced sound quality is guaranteed.

Get ready for style and performance
"With 3D capability, the connectivity of BRAVIA Internet Video and stunning monolithic design, the NX713 and NX813 are perfect for people who want both style and performance from their TV," says Christian Brown, Senior Category Marketing Manager, Sony UK.

"More and more people recognize that 3D will play an important part in the future of home entertainment. And with the NX713 and NX813 you'll be safe in the knowledge that you're ready to upgrade to 3D viewing as soon as you decide the time is right."

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Verizon testing a $99 unlimited plan that simply matches Sprint's famous offering

Source: http://www.engadget.com/2010/08/18/verizon-testing-a-99-unlimited-plan-that-simply-matches-sprint/

Carriers test the waters on new plans all the time, but this new one from Verizon seems -- at least at cursory glance -- squarely aimed at its CDMA competitor. According to research from Current Analysis, the nation's top carrier is trying out an unlimited Nationwide Talk & Text plan for $69.99 in San Diego and Los Angeles retail outlets. That's $20 less than the current price, and coupled with a $29.99 data plan, we're looking at a monthly fee that's within pennies of Sprint's Simply Everything plan. As with other network trials, this one may never expand beyond certain test markets -- but needless to say, this seems to indicate Verizon's taking its smaller CDMA rival a whole lot more seriously. Amazing what a quarter of positive subscriber growth can do, isn't it?

Verizon testing a $99 unlimited plan that simply matches Sprint's famous offering originally appeared on Engadget on Wed, 18 Aug 2010 15:56:00 EDT. Please see our terms for use of feeds.

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