Hi Guyz,
            This blog is about activating your windows operating system.,Sometimes when you tend to change your computers operating system regardless of the computers processor we seem to get a water mark to the bottom right corner of your desktop saying that activate your windows.,This will not change even if you change your desktop wallpaper.,this means that you have to activate your windows..activating windows is very easy.,You will need a software called KMSPico that is also called as windows activator

Just follow some few steps:

1.To download the file click here.

2.Click on the download button in the page that appears to download the compressed file.

3.Now after download extract the .exe file and install it

4.Using this software you can now activate your windows










leave your comments below:

Nikola Tesla is finally beginning to attract real attention and encourage serious debate more than 70 years after his death.

But, let’s take a look at what Nikola Tesla — a man who died broke and alone — has actually given to the world.  For better or worse, with credit or without, he changed the face of the planet in ways that perhaps no man ever has.

1. Alternating Current

This is where it all began, and what ultimately caused such a stir at the 1893 World’s Expo in Chicago.  A war was leveled ever-after between the vision of Edison and the vision of Tesla for how electricity would be produced and distributed.  The division can be summarized as one of cost and safety: The DC current that Edison (backed by General Electric) had been working on was costly over long distances, and produced dangerous sparking from the required converter (called a commutator).  Regardless, Edison and his backers utilized the general “dangers” of electric current to instill fear in Nikola Tesla’s alternative: Alternating Current.  As proof, Edison sometimes electrocuted animals at demonstrations.  Consequently, Edison gave the world the electric chair, while simultaneously maligning Tesla’s attempt to offer safety at a lower cost.  Tesla responded by demonstrating that AC was perfectly safe by famously shooting current through his own body to produce light.  This Edison-Tesla (GE-Westinghouse) feud in 1893 was the culmination of over a decade of shady business deals, stolen ideas, and patent suppression that Edison and his moneyed interests wielded over Tesla’s inventions. Yet, despite it all, it is Tesla’s system that provides power generation and distribution to North America in our modern era.

2. Light

Of course Nikola Tesla didn’t invent light itself, but he did invent how light can be harnessed and distributed.  Tesla developed and used fluorescent bulbs in his lab some 40 years before industry “invented” them. At the World’s Fair, Tesla took glass tubes and bent them into famous scientists’ names, in effect creating the first neon signs.  However, it is his Tesla Coil that might be the most impressive, and controversial.  The Tesla Coil is certainly something that big industry would have liked to suppress: the concept that the Earth itself is a magnet that can generate electricity (electromagnetism) utilizing frequencies as a transmitter.  All that is needed on the other end is the receiver — much like a radio.

3. X-rays

Electromagnetic and ionizing radiation was heavily researched in the late 1800s, but Nikola Tesla researched the entire gamut. Everything from a precursor to Kirlian photography, which has the ability to document life force, to what we now use in medical diagnostics, this was a transformative invention of which Tesla played a central role.  X-rays, like so many of Tesla’s contributions, stemmed from his belief that everything we need to understand the universe is virtually around us at all times, but we need to use our minds to develop real-world devices to augment our innate perception of existence.

4. Radio

Guglielmo Marconi was initially credited, and most believe him to be the inventor of radio to this day.  However, the Supreme Court overturned Marconi’s patent in 1943, when it was proven that Tesla invented the radio years previous to Marconi.  Radio signals are just another frequency that needs a transmitter and receiver, which Tesla also demonstrated in 1893 during a presentation before The National Electric Light Association.  In 1897 Tesla applied for two patents  US 645576, and US 649621. In 1904, however, The U.S. Patent Office reversed its decision, awarding Marconi a patent for the invention of radio, possibly influenced by Marconi’s financial backers in the States, who included Thomas Edison and Andrew Carnegie. This also allowed the U.S. government (among others) to avoid having to pay the royalties that were being claimed by Nikola Tesla.

5. Remote Control

This invention was a natural outcropping of radio. Patent No. 613809 was the first remote controlled model boat, demonstrated in 1898.  Utilizing several large batteries; radio signals controlled switches, which then energized the boat’s propeller, rudder, and scaled-down running lights. While this exact technology was not widely used for some time, we now can see the power that was appropriated by the military in its pursuit of remote controlled war. Radio controlled tanks were introduced by the Germans in WWII, and developments in this realm have since slid quickly away from the direction of human freedom.

Never buy another battery again (Ad)

6. Electric Motor

Nikola Tesla’s invention of the electric motor has finally been popularized by a car brandishing his name.  While the technical specifications are beyond the scope of this summary, suffice to say that Tesla’s invention of a motor with rotating magnetic fields could have freed mankind much sooner from the stranglehold of Big Oil.  However, his invention in 1930 succumbed to the economic crisis and the world war that followed. Nevertheless, this invention has fundamentally changed the landscape of what we now take for granted: industrial fans, household applicances, water pumps, machine tools, power tools, disk drives, electric wristwatches and compressors.

7. Robotics

Nikola Tesla’s overly enhanced scientific mind led him to the idea that all living beings are merely driven by external impulses.  He stated: “I have by every thought and act of mine, demonstrated, and does so daily, to my absolute satisfaction that I am an automaton endowed with power of movement, which merely responds to external stimuli.”  Thus, the concept of the robot was born.  However, an element of the human remained present, as Tesla asserted that these human replicas should have limitations — namely growth and propagation. Nevertheless, Nikola Tesla unabashedly embraced all of what intelligence could produce.  His visions for a future filled with intelligent cars, robotic human companions, and the use of sensors, and autonomous systems are detailed in a must-read entry in theSerbian Journal of Electrical Engineering, 2006 (PDF).

8. Laser

Nikola Tesla’s invention of the laser may be one of the best examples of the good and evil bound up together within the mind of man.  Lasers have transformed surgical applications in an undeniably beneficial way, and they have given rise to much of our current digital media. However, with this leap in innovation we have also crossed into the land of science fiction.  From Reagan’s “Star Wars” laser defense system to today’s Orwellian “non-lethal” weapons’ arsenal, which includes laser rifles and directed energy “death rays,” there is great potential for development in both directions.

9 and 10. Wireless Communications and Limitless Free Energy

These two are inextricably linked, as they were the last straw for the power elite — what good is energy if it can’t be metered and controlled?  Free?  Never.  J.P. Morgan backed Nikola Tesla with $150,000 to build a tower that would use the natural frequencies of our universe to transmit data, including a wide range of information communicated through images, voice messages, and text.  This represented the world’s first wireless communications, but it also meant that aside from the cost of the tower itself, the universe was filled with free energy that could be utilized to form a world wide web connecting all people in all places, as well as allow people to harness the free energy around them.  Essentially, the 0’s and 1’s of the universe are embedded in the fabric of existence for each of us to access as needed.  Nikola Tesla was dedicated to empowering the individual to receive and transmit this data virtually free of charge.  But we know the ending to that story . . . until now?

Let me tell you about those movies that will leave you nail biting and which are directed intelligently by keeping every minute detail in mind.

Exam

Eight candidates cooperate and compete in order to secure a job with a prestigious company. This movie is so thrilling that at the end you will definitely say “WHAT THE FUCK.”

2. Fight Club

An ordinary employee is tired of his drudged existence. His life changes when he meets Tyler, a soap salesman, and the two develop a unique bond after they decide to fight each other.

3. Gone Girl

Nick Dunne discovers that the entire media focus has shifted on him when his wife Amy Dunne disappears on the day of their fifth wedding anniversary.

4. The Game

A banker receives a strange birthday gift from his brother. When he actually utilizes the gift, he falls in trouble.

5. Shutter Island

Teddy Daniels and Chuck Aule, two US marshals, are sent to an asylum on a remote island in order to investigate the disappearance of a patient, but Teddy uncovers a shocking truth about the place.

6.Now you see Me

The Horsemen, a group of four street magicians, rob a huge sum of money that belongs to insurance magnate Arthur Tressler. The group is chased by FBI agent Dylan Rhodes and Interpol agent Alma Dray.

7. The Usual Suspect

Five criminals meet during a routine police line-up. Upon their release, they plan to pull off a dangerous heist involving precious emeralds worth three million dollars.

8.The Girl with the Dragon Tatoo

A journalist takes help from a computer hacker to investigate the disappearance of a woman who has been untraceable for forty years.

9. Panic Room

A woman and her daughter hide in a secret room when intruders break into their home. When they learn that what they are trying to find is with them in the room, they begin to fear for their lives.

10. The Shawshank Redemption

Andy Dufresne, a successful banker, is arrested for the murders of his wife and her lover, and is sentenced to life imprisonment at the Shawshank prison. He becomes the most unconventional prisoner.

You Are Going To Get Mind-Blogged After Seeing This

1.Curtiss-Wright Air Car
The Curtiss-Wright Air Car was a landspeeder for 1960
Following the end of World War II, the United States military invested a great deal of money in the development of new hardware offering tactical advantages on future battlefields. One of the concepts which the Army Transportation Research Command evaluated was the 1960 Curtiss-Wright Model 2500 Air Car. This 21-foot-long, 8-foot-wide, 5-foot-tall contraption was everything that Luke Skywalker's landspeeder would promise 17 years later—stylish driving without the burden of wheels.

Curtiss-Wright was and remains an aerospace and defense supplier with experience in aircraft development. Following the war, the military had a keen interest in improving amphibious landing and transport craft. The Air Car was developed with that need in mind. Since the United States hadn't quite perfected repulsorlift technology yet, Curtiss-Wright had to go in a different direction, creating what was termed a 'Ground Effects Machine' (GEM), which we now know as a hovercraft. 

Twin 180-hp Lycoming aircraft engines were mounted fore and aft in the Air Car's tube-frame chassis and powered two enormous, vertical ducted fans. At full power, the Air Car rode on a 15-inch cushion of air and could lift a 1000-lb payload.

2.SkyRunner
Video VIA:https://www.youtube.com/watch?v=ajvqB...
SkyRunner is a dune buggy and a power parachute in one. After almost three years in development, it is on track to hit the market later this year.

3.Maverick:http://mavericklsa.com/
The Maverick LSA design has been developed as an easy-to-operate – air & land craft. It is intuitive and safe to fly, drive and maintain by people in frontier areas of the world enabling them to use this unique vehicle in missions and humanitarian applications – in the world “beyond roads.”

4.PAL-V：http://pal-v.com/

5.Terrafugia：http://www.terrafugia.com/

6.AeroMobil：http://www.aeromobil.com/



As an Addition To This....  Check This Under Water Car>>>

This is by far the coolest thing we've seen at SWSW‬ Interactive this year.

Peter Thiel, the outspoken Silicon Valley venture capitalist once famously said,

 “We wanted flying cars, instead we got 140 characters.”

Well, now we’re about to finally get flying cars!

A Slovakia-based company called AeroMobil just unveiled their flying car prototype at SXSW Interactive. It gets up to 700 km of flight on a tank of regular gasoline. It’s scheduled to go on sale in 2017 and it will be aimed at a wealthy clientele of early adopters (you will need a pilot’s license to “fly” it).

Autonomous self-flying cars will be the next step. Just imagine a flying car service like Uber!

Here’s a good promotional video the company has created for its Flying Car prototype:

Specs

General characteristics

• Crew: two
• Capacity: two passengers
• Length: 6 m (19 ft 8 in)
• Wingspan: 8.32 m (27 ft 4 in) wings extended
• Width: 2.24 m (7 ft 4 in) wings folded
• Empty weight: 600 kg (1,323 lb)
• Powerplant: 1 × Rotax 912 four cylinder horizontally-opposed liquid and air-cooled piston aircraft engine, 75 kW (100 hp)

Performance

• Maximum speed: 200 km/h (124 mph; 108 kn) maximum road speed: 160 km/h (99 mph)
• Stall speed: 60 km/h (37 mph; 32 kn)
• Range: 700 km (435 mi; 378 nmi) Road range: 875 km (544 mi)
• Driving fuel consumption: 8 l/100 km (29.4 mpg_-US; 35.3 mpg_-imp)
• Flight fuel consumption: 15 l (4.0 US gal; 3.3 imp gal) /hour

newly opened.............

buddiesfilms.blogspot.com

buddieshacks.blogspot.com


Contact Me For Anything U Need GOOD Or BAD !!!!

D-Wave confirmed as the first real quantum computer by new research

Ever since D-Wave arrived on the scene with a type of quantum computer capable of performing a problem-solving process called annealing, questions have flown thick and fast over whether or not the system really functioned — and, if it did function, whether it was actually performing quantum computing. A new paper by researchers who have spent time with the D-Wave system appears to virtually settle this question — the D-Wave system appears to actually perform quantum annealing. It would therefore be the first real quantum computer

.

Up until now, it’s been theorized that D-Wave might be a simulator of a quantum computer based on some less-than-clear benchmark results. This new data seems to disprove that theory. Why? Because it shows evidence of entanglement. Quantum entanglement refers to a state in which two distinct qubits (two units of quantum information) become linked. If you measure the value of one entangled qubit as 0, its partner will also measure 0. Measure a 1 at the first qubit, and the second qubit will also contain a 1, with no evidence of communication between them.

Researchers working with a D-Wave system have now illustrated that D-Wave qubit pairs become entangled, as did an entire set of eight qubits. (The D-Wave uses blocks of eight qubits, as shown below). [DOI: http://dx.doi.org/10.1103/PhysRevX.4.021041 - "Entanglement in a Quantum Annealing Processor"]

The D-Wave 2 Vesuvius chip, with 512 qubits

Assuming the experimental evidence holds up, this fundamentally shifts the burden of proof from “Prove D-Wave is quantum,” to “Prove the D-Wave isn’t quantum.” Evidence of entanglement is the gold standard for whether or not a system is actually performing quantum computing.

So, now what?

Now that we have confirmation that D-Wave is a quantum computer (or at least, as close to confirmation as we can likely get), the question is, how do we improve it? As we’ve previously covered, the D-Wave isn’t always faster than a well-tuned classical system. Instead of arguing over whether or not an Nvidia Tesla GPU cluster with customized software is a better or worse investment than a supercomputer that’s cryogenically cooled and computes via niobium loops, we’re going to look at what D-Wave needs to do to improve the capabilities of its own system. As Ars Technica points out, its architecture is less than ideal — for some problems, D-Wave can only offer less than 100 effective qubits despite some newer systems having 512 qubits in total, because its architecture is only sparsely connected. Each group of eight qubits connects to itself, but each island of eight qubits has just eight connections to two other adjacent qubits.

The D-Wave Two’s cryogenic cooling system. There’s a qubit chip in there, somewhere.

D-Wave has stated that it intends to continue increasing the number of qubits it offers in a system, but we can’t help wondering if the company would see better performance if it managed to scale up the number of interconnects between the qubit islands. A quantum system with 512 qubits but more than just two connections to other islands might allow for much more efficient problem modeling and better overall performance.

Inevitably this kind of questioning turns to the topic of when we’ll see this kind of technology in common usage — but the answer, for now, is “you won’t.” There are a number of reasons why quantum computing may never revolutionize personal computing, many of them related to the fact that it relies on large amounts of liquid nitrogen. According to D-Wave’s documents for initial deployments, its first systems in 2010 required 140L of LN2 to initially fill and boiled off about 3L of fluid a day. Total tank capacity was 38L, which required twice-weekly fill-ups. The Elan2 LN2 production system is designed to produce liquid nitrogen in an office setting and can apparently create about 5L of LN2 per day at an initial cost of $9500. [Read: Google’s Quantum Computing Playground turns your PC into a quantum computer.]

Did I mention that you have to pay attention to Earth’s magnetic field when installing a D-Wave system, the early systems created about 75dB of noise, and it weighs 11,000 pounds? Many of these issues confronted early computers as well, but the LN2 issue is critical — quantum computing, for now, requires such temperatures — and unless we can figure out a way to bring these systems up to something like ambient air temperature, they’ll never fly for personal use. Rest assured that lots of research is being done on the topic of room-temperature qubits, though!

Contact Me For Anything U Need GOOD Or BAD !!!!

How to download and install Windows 8.1 Update 1 for free (right now)

Windows 8.1 Update 1 is now available to download. If you’re already using Windows 8.1, the easiest way to download the update is to visit PC Settings (the new Control Panel, available from the right-hand menu bar) and click “Update and recovery.” There is also the option to download the Windows 8.1 Update 1 as standalone files, if you want to archive them or perform an offline/enterprise installation.

If you haven’t already installed Update 1, you really should do it as soon as possible — Microsoft has said that users won’t get any security updates if they stick with Windows 8.1, and sure enough, this past Patch Tuesday, there were no updates. To continue receiving updates, you need to install Windows 8.1 Update 1.

How do you do that, for free? Just follow these simple instructions.

How to download and install Windows 8.1 Update 1

As we previously mentioned, the quickest way to get Update 1 is to use the PC Settings control panel. If you do that, skip ahead to the section at the end of the story with tips on how to make the most of Update 1. If you want to download the standalone files, though, read on.

As always, we have to preface this with the usual disclaimer: Downloading Windows updates using unconventional methods is risky. At the very least, you should ensure that the SHA hash of the downloaded file matches by using the Microsoft File Checksum Integrity Verifier (a free tool). If you have any important documents on your computer, you should back them up, too (this should be an unnecessary precaution, though; Update 1 is just a bunch of patches, rather than a complete reinstallation).

Use the following links to download the right version of Windows 8.1 Update 1 for your computer’s architecture (probably 64-bit, unless you have an older computer or a tablet).

Official Windows Update download links:

• 64-bit:
  KB2919442 / KB2919355 / KB2932046 / KB2937592 / KB2938439 / KB2934018
• 32-bit:
  KB2919442 / KB2919355 / KB2932046 / KB2937592 / KB2938439 / KB2934018
• ARM:
  KB2919442 / KB2919355 / KB2932046 / KB2937592 / KB2938439 / KB2934018

Alternatively, if you don’t like direct downloads, you can always hit up the Windows Update website and follow the instructions there.

Once you’ve downloaded Update 1, you will have six separate patches that need to be installed in a very specific order. Your computer will need to reboot a few times during the process.

1. KB2919442
2. KB2919355
3. KB2932046
4. KB2937592
5. KB2938439
6. KB2934018

Windows 8.1 Update 1 Desktop. Note how Metro apps can now be minimized to the taskbar. There’s no sign of ‘Update 1′ in the system info window, interestingly.

Life after installing Windows 8.1 Update 1

And that should be it! If you’re a mouse-and-keyboard user, you will find that Windows 8.1 Update 1 makes the Metro interface a lot more palatable. Whether this will move you to actually use the new Start screen, I’m not so sure. Unless there’s a Metro-style app that youreally want to use, you will probably still find yourself on the Desktop, using a third-party app to bring back the Windows 7-style Start menu. Still, on the rare occasion that you find yourself thrust into the new Metro interface, Update 1 makes the whole experience feel a little less you’re being brutally plucked out of one operating system and unceremoniously dumped in another. So that’s good.

On the Desktop side of things, Update 1 doesn’t do a whole lot. I’m sure there will be some small, useful tweaks, but the main changes appear to be better support for high-PPI displays, and audio/video files will now be opened in Photo Viewer and Media Player respectively, rather than bouncing you into Metro. For the 23 people using Windows 8.1 on a tablet, Update 1 adds a Search button to the Start screen, and some of the stock Metro apps have been updated/improved. Thrilling stuff. Microsoft’s hunt for Windows 8 market share continues.

Contact Me For Anything U Need GOOD Or BAD !!!!

It looks as though Google wants to accelerate its plans to hook up the entire world to the Internet by deploying a fleet of satellites. It already is working on a plan to deliver the Web via high-altitude balloons, but a satellite system would be more reliable and durable. Facebook is using drones in a similar effort, and Google recently bought a drone company it had shown interest in acquiring.

Google's eye on the sky seems wider than ever. The company reportedly is planning to spend at least US$1 billion on a project to bring Internet access to remote areas through satellites.

It is not yet clear whether the plan would augment or replace Project Loon -- Google's proposal to connect remote regions to the Internet through high-altitude balloons. However, the report suggests that Google hopes the plan will help it to overcome technical and financial hurdles that hampered similar projects in the past.

Lower Orbit

While the details of the scheme are shifting, the project will begin with around 180 small, high-capacity satellites that will have a lower orbit than traditional satellites and may expand from there, according to The Wall Street Journal.
"The potential of the reported Google project would be to help ensure that the next generation of unserved Internet users comes online, said Charles King, principal at Pund-IT.
"The fact is that often due to political folly and economic challenges, potential online access suffers. So it's both interesting and admirable that private concerns like Google, Facebook and others are investigating alternatives for creating the infrastructure necessary to support wireless Internet access," he told TechNewsWorld.

Hiring Spree

Google apparently has been hiring engineers from Space Systems/Loral to work on the initiative, which is being led by Greg Wyler, founder of satellite communications company O3b Networks. Wyler and O3b's former chief technology officer recently joined Google. Between 10 and 20 people are said to be working under Wyler.
The company is spending between $1 billion and north of $3 billion -- a price tag that will be affected by the final design of the network, further phases that could expand the number of satellites to double the initial number, and other factors.
Project Loon had the potential to build a network of balloons to cover the entire planet, Google CEO Larry Page said at a conference earlier this year, noting that balloons were cheaper and faster to build.
However, satellites can afford greater capacity and flexibility, while costs to build them appear to have dropped in recent years.
"I think the satellites will initially complement Project Loon," Laura DiDio, principal at ITIC, told TechNewsWorld. At first glance, satellites appear to be more robust than high-altitude balloons circumnavigating the globe, which could be knocked off course or downed by severe weather conditions. Satellites can also be impacted by an incident that might occur in space, but seem more substantial than a high-altitude balloon."

'Cheaper to Build'

"Balloons can more easily be shot down, typically have less range, and are more vulnerable to atmospheric conditions, but they are far cheaper to build and launch," said Rob Enderle, principal at the Enderle Group. "A typical developing country doesn't have the technology to shoot down satellites. They can execute Loon more quickly, but the satellite approach would potentially be far more strategic."
As part of the project, Google apparently plans to take advantage of developments in antenna technology, which can track multiple moving satellites. Some current antennas have no moving parts and can be controlled by software, which lowers maintenance and manufacturing costs.
"They want to increase their reach and do have a belief that every person in the world should have access to the Internet," Enderle told TechNewsWorld. "While they clearly have a revenue goal as well, I think in this instance, it is secondary -- given the audience -- to their goal of making people better informed."

Infrastructure Plan

Along with the somewhat noble notion of connecting people in remote regions to the Internet, Google's latest Internet scheme could be seen as part of tech companies' tussle to take over Internet infrastructure, largely bypassing the networks of telecoms.
Google has laid more than 100,000 miles of fiber-optic cables around the world, a report earlier this year indicated.
"Truthfully, Google's motives are a mix of altruism and pragmatism. They can bring Internet connectivity to remote peoples and portions of the globe and make a profit doing it. Sounds like a win-win to me," ITIC's DiDio said. [*Correction - May 1, 2014]
Facebook and several other technology firms have teamed up to use drones to bring Internet access to people in remote areas through Internet.org.
After reports surfaced of Facebook's interest in buying drone maker Titan Aerospace, Googleswooped in to make the acquisition.
"I think their respective plans might be cooperative in the early planning stages and then diverge if and when the project actually takes off," DiDio speculated. "At that point, Google will have to refine its goals to suit the individual usage models. But initially at least, I can see many people in remote locations wanting to use the same technology to connect to Facebook and Internet.org."

Connecting Those at Home

The implications of such ambitious projects stretch far beyond the developing world.
"There is tremendous potential If Google goes forward with its project to give unwired portions of the planet Internet access using small satellites," DiDio said.
"The impact and implications are enormous for both developed as well as developing nations. Location is a huge obstacle and impediment to Internet access," she pointed out.
"While it's unthinkable to city dwellers and suburbanites, there are still many rural or geographically remote areas in the U.S. with no connectivity," DiDio added. "According to the FCC's Eighth Broadband Progress Report released in August 2012, 75 percent or 14.5 million of the 19 million Americans that currently lack Internet access live in rural or remote areas where connectivity and broadband are unavailable.

"The biggest group of disenfranchised here in the U.S. are 5.1 million Native American Indians and Alaska Natives," DiDio continued. "The majority of Native Americans live on 324 tribal reservation lands -- many of which are rural and remote -- in the lower 48 states and Alaska, according to the Bureau of Indian Affairs in Washington, D.C. They are miles from any town or power grid, and many reservations lack electrical power -- which means no Internet connectivity. Imagine the difference this could make in their lives."

Contact Me For Anything U Need GOOD Or BAD !!!!

Samsung Debuts Thin New Tablets With Killer Screens

Samsung's claim that the Galaxy Tab S line has the most advanced display technology is true, said IHS iSuppli's Sweta Dash. Its 8.4-inch tablet offers 359 ppi, compared to the Kindle Fire HDX's 339 ppi. The 10.5-inch Galaxy Tab S offers 288 ppi compared to the iPad Air's 264 ppi. OLED tech enables thinner devices than LCD and a better contrast ratio. However, it costs more to produce, too.