LCD flat screen

When shopping for a new television you probably noticed the 720p, 1080i or 1080p labeled on the box. What does it all mean? The store clerk might convince you that 1080p is the best and you should get one. The television might be capable of displaying 1080p but is the source able too? Examples of sources include: Blu-ray, HD DVD, cable, satellite, gaming consoles.

Blu-ray, HD DVD and gaming consoles provide true high definition representation. Nintendo Wii displays 480p (not HD) while Xbox 360 can displays 1080i and Playstation 3 can displays 1080p.

On the other hand the satellite or cable companies keep advertising that they offer HD. Well those channels are not always 24×7 and some are only up converted to higher resolution but not necessarily HD. Why would you pay so much for only 30 channels? Yes, HD is nice but in my opinion it is too expensive to pay for.

Disadvantages of HD (Cable or Satellite)

-Regular channels are ugly since the aspect ratio makes your image look fuzzy
-Regular channels have a black bar on both sides of the image
-Not enough high definition channels
-Too expensive for the few channels that you have to pay extra for.
-Not all channels are true high definition
-Service providers compress the feed which cause images to lose quality

Advantages of HD

-Enjoy high definition gaming from Xbox 360 or Playstation 3
-Over 500,000 more pixels then SDTV at 720p resolution
-Aspect ratio of 16:9 for a widescreen image
-Crystal clear, sharp and realistic images
HDTV is by far a technology that everyone would like to own however you should investigate what the service provider have to offer in HD including prices. Paying for an HD box and the service might cost you much more then your regular digital channels but if you have the money to spend to view around 30 HD channels, go right ahead.

I don’t know why people are so stupid and can’t realize that Mccain will ruin their country if elected!  Who cares who has more experience, just look at who would care more for the American people.  Thank god i’m Canadian!

Stupid Mccain

Graphene transistors will possibly replace silicon transistors in the next 20 years. The transistors made of graphene will be less then 10 nanometers wide. Intel Corporation is currently constructing chips with 90 nanometer transistors however by 2008 they will retool their factory to have 45 nanometer transistors at a cost of over 1.5 billion dollars.

Graphene

Problems with graphene: “Etching graphene leaves edges with dangling carbon bonds, he says, which can cause background electrons to scatter. This makes the transistor less efficient, although the full effect of the scattering isn’t yet known. But the vast knowledge of carbon chemistry should hold the answer to how to overcome this kind of problem, he predicts, by chemically altering those edges.”
The following link gives more details on Graphene.

There is still room for improvement for silicon transistors but once they are unable to produce chips smaller and faster they will probably turn to grapheme to take over.