Edunology - Saumya Aggarwal

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The LCD television is a flat-panel television which utilizes a Liquid Crystal Display technology. It has two layers of glass which are polarized and stuck together. The liquid crystals are held in one of the layers. These liquid crystals pass, or block the light, to produce images on the screen when the electric current passes through it.

However, the crystals do not produce their own light. The light comes from the series of fluorescent lamps at the back of the screen. There are millions of shutters arranged in a grid, which open and close to release and trap some of the light that is not needed to create images. Then each shutter is paired with a colored filter which produces a sub-pixel. These are so small, that when they combine, they create a single pixel, which appears to be a single spot of color on the screen. With the help of the fluorescent lamps, the images created by the liquid crystals become visible to the viewer.

LCD television produces high image quality. They can be made very thin, which makes them less space-consuming, and the user can hang them anywhere. This makes them appealing to buyers.

LED TV’s are actually very much like LCD TV’s. They also have a flat-screen which utilizes Liquid Crystal Display technology. The only difference is their source of light, which is at the back of the screen. The LCD TV uses fluorescent lamps, and the LED TV uses LED (Light Emitting Diodes).

There are two types of LED backlighting. One is referred to as Edge lighting, and the other is called Full-Array lighting. With the Edge lighting, the series of diodes are arranged along the outside edges of the screen. When there is power, the light is distributed across the screen. Alternatively, in Full-Array lighting, there are several rows of diodes behind the entire surface of the screen. They provide more control over brightness and dimming, because the diodes can be turned on and off independently.

LED TV’s are LCD TV’s with a new backlight system. They are newly developed for LCD’s, because Light Emitting Diodes are said to give more balance in color saturation, and use less power than the fluorescent lamps. LED TV’s are the newest version, and that’s why they are currently more expensive than the standard LCD TV’s.

Summary:

LED TV’s are still LCD TV’s. They are just considered to be the newer LCD TV version because of the new backlight system used. The LED TV uses Light Emitting Diodes, while the standard LCD TV uses fluorescent lamps. Although they both still use Liquid Crystal Display technology. The main difference is the part behind their screen, which is the backlight.

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Samsung, apart from being a consumer electronics giant is also one of the premier computer component manufacturers in the world, and in fact, invented DDR RAM in 1997, following it up with DDR2 in 2001, and DDR3 in 2005. Cementing its position, Samsung has announced it has completed the development of the industry’s first DDR4 DRAM module, using 30nm class process technology.

Achieving unheard of data transfer speeds (2.133Gbps) at a super low voltage (1.2V), the DDR4 module has been given unbuffered dual in-line memory modules (UDIMM) to a controller maker for final testing.

Compared to 30nm class process 1.5V DDR3 DRAM, the new DDR4 DRAM module apparently offers reduced power consumption to the tune of nearly 40%. This power efficiency is in no small part due to the Pseudo Open Drain (POD) technology Samsung has developed, which takes up about 50% of the electrical current of DDR3 RAM for read/write processes. The new circuit architecture also allows for massive speed boosts, allowing DDR4 to run at speeds from 1.6Gbps to 3.2Gbps, nearly twice as fast when compared to today’s typical speeds of 1.6Gbps for DDR3 RAM and 800Mbps for DDR2 RAM.

The latest RAM modules would only be arriving by the second half of the year, after JEDEC standardization of DDR4 technologies. The president of Samsung’s memory division, Dong Soo Jun, said in a statement:

"Samsung has been actively supporting the IT industry with our green memory initiative by coming up with eco-friendly, innovative memory products providing higher performance and power efficiency every year. The new DDR4 DRAM will build even greater confidence in our cutting-edge green memory, particularly when we introduce four-gigabit DDR4-based products using next generation process technology for mainstream application."

via ThinkDigit

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Wish you all a very Happy New Year 2011!

Lets set the ball rolling for 2011, few of the new year resolutions can be:
Wish one you picking?

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Microsoft has revealed a new feature that will ship with Internet Explorer 9 to help users avoid the online tracking that is now widespread on the Web and is used to power behavioral advertising. The new Tracking Protection Lists will tell the browser which third-party content to permit and which to prohibit.


Tracking Protection Lists will be an opt-in feature, and Microsoft says that it will not provide any lists itself. Instead, third parties can provide lists to end-users. As such, the lists may come from privacy advocacy groups, ad-blocking advocates, or individuals who want to block certain content. The lists will update themselves automatically on a weekly basis.

Internet Explorer already contains a feature, InPrivate Filtering, that attempts to block third-party scripting and tracking devices. However, InPrivate Filtering operates on a heuristic basis. It can both fail to block certain tracking devices, and it can also block too much third-party scripting, leaving sites inoperative. Tracking Protection Lists, in contrast, will be curated, and so should be less susceptible to these issues.


Specifics of the Tracking Protection Lists are not yet finalized. Microsoft has proposed a file format for the lists, and it promises that the final specification will be available under a Creative Commons Attribution license.

Support for Tracking Protection Lists will first arrive in a release candidate of Internet Explorer 9. Redmond did not give a date for this, but it is likely to be early next year.

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The latest increase in intake for Institute of Managament Technology (IMT) Ghaziabad’s PGDM programme has prompted me to write this article. The total intake has crossed 500 and mind you its IMT and no IIM. I will look at it in two perspectives:

1. Decrease in percentile for admissions
2. Sacrifice on job quality

There has been tremendous pressure of IMT Ghaziabad in terms of admitting students. The same admission form is used to admit students ranging from as low as 25% percentile in IMT Dubai to 95% in IMTG. The focus is certainly missing. What's more PGDM(MBA) is no engineering degree and students with work-ex like to have quality placements. If placements are happening where Tech firm is taking 100+ students I have my doubt to call it a placement even.

• Increasing fees (What’s the ROI???)
• Pressure on quality of students with increased intake (Not long before we heard about the student unrest in IMT over the same issue)
• Decreasing high end management jobs at IMT (With 500+ students, can you get your dream job in a company looking to hire 2 candidates. What is your visibility?)

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Contest Details:

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Deadline: 31st Jan, 2011
Over 5 T-shirts to be won!

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The holiday season came one day early for Facebook this year, as Santa bestowed the company the title of "third largest website ever." New metrics from comScore indicate that Facebook has finally passed Yahoo for third place, pulling in 648 million unique visitors for November 2010 versus Yahoo's 630 million.

Only Microsoft, with 869 million unique visitors, and Google, with 970 million, stand in Facebook's way at this point. Yahoo drops down to fourth, though that should really come as little surprise--Facebook has been chipping away at the search giant for some time now.

As of December 2009, Facebook's pageviews were already up to 193 billion versus Yahoo's 100 billion (and Microsoft's 109 billion, to note). As well, November metrics from comScore indicate that Facebook serves up more than twice as much display advertising as Yahoo—23 percent of all online ads within the U.S. compared to Yahoo's 11 percent.

Facebook leaped over Yahoo in a batch of September comScore metrics related to U.S. video properties. As of August 2010, Facebook delivered video to 58.5 million users versus Yahoo's 53.9, representing a total of 243 million viewing sessions to Yahoo's 229 million. The only metric where Yahoo actually beat Facebook out was on viewing time—Yahoo users viewed an average of 31.6 minutes of online video per person versus Facebook users' 20.5 minutes per person.

Yahoo nevertheless beats out Facebook when isolated to just U.S. visitors only. In this, the company is the top website on the Internet with 181 million unique monthly visitors. Facebook, at 152 million, sits in fourth place on this ranking.

Narrowing the category to search engines only, Yahoo still trails Google at a rate of 16 percent to 66.2 percent for U.S. search engine market share. Its second place ranking is a bit tentative as well, for November 2010 metrics from comScore show that Microsoft, at 11.8 percent, is slowly gaining ground based on October 2010 results.
"Our greatest competitor probably is Facebook, more so than Google," said Yahoo CEO Carol Bartz at a Bloomberg event earlier this month. "They're a hot site, but there's room for more than one of anything."

via Thinkdigit