New Wi-Fi Nearly Doubles Speed

Wireless networking products are never modest in their performance claims. However, Belkin's new Wireless Pre-N Router ($150) and Notebook Network Card ($100) promise--and deliver--dramatically faster speeds and much better range than their fastest 802.11g predecessors.
Not only is the new gear compatible with 802.11g and 802.11b equipment, in our tests 802.11g clients actually performed better on a network based upon the Pre-N router. (The Pre-N name refers to the 802.11n standard that is still in development. More on that later.)
This impressive performance wouldn't matter if you used a wireless network only to share broadband Internet access (which tops out at 1 to 1.5 mbps) and were happy with the range of your existing setup. But Belkin's Pre-N products would clearly benefit users who want to move large files, stream video, or extend the range of their home or small-office Wi-Fi network.

Speedy Transfers.

In our tests transferring data between a PC connected to the Pre-N router via ethernet and an IBM ThinkPad R40 notebook equipped with the Pre-N PC Card, throughput speeds from a distance of 10 feet were between 37 mbps and 42 mbps, with an average of 40 mbps. When we ran the same tests with a network using Belkin's own 802.11g router and PC Card, throughput ranged from just 13 mbps to 23 mbps, with an average of 20 mbps. (See the chart below.)
When we moved the notebook some 50 feet and several rooms away from the PC and router, the Pre-N throughput declined, as we would expect. Speeds ranged from 12 mbps to 33 mbps, with an average of 20 mbps. But the 802.11g PC Card and router could not transfer data at all.
However, when we replaced the 802.11g router with the Pre-N router, the notebook with the 802.11g card was able to connect from 50 feet, though at speeds we'd expect from the slowest Wi-Fi standard, 802.11b. And when we connected an 802.11g notebook to a network that otherwise included all Pre-N equipment, the network didn't slow down in an informal test.
The Pre-N products achieve their performance gains mostly by using technology called MIMO (Multiple Input Multiple Output), in which a number of antennas transmit many unique data streams in the same frequency channel (other Wi-Fi products transmit data in a single stream in a single channel).
Belkin says it calls the products "Pre-N" because some implementation of MIMO is almost certain to be the basis for the IEEE's upcoming 802.11n standard, the successor to today's 802.11a/b/g standards. Certified 802.11n products likely won't appear until early 2007. When they do, it's possible that Belkin's equipment will be incompatible with the certified gear.
But if you want to improve your net's speed or range, we see no reason to wait the two-plus years until the 802.11n standard is finalized.

Chicago citation: Yardena Arar. New Wi-Fi Nearly Doubles Speed. Pc World. 2004. http://www.pcworld.com/article/118666/new_wifi_nearly_doubles_speed.html# (accessed on September 15, 2008)

Summary: This article told us about the new type of router during that time including the price. It help me to compare the difference of the price and connection that i can get. really help me a lot in choosing a routers..

How Bluetooth Creates a Connection

­Bluetooth takes small-area networking to the next level by removing the need for user intervention and keeping transmission power extremely low to save battery power. Picture this: You're on your Bluetooth-enabled cell phone, standing outside the door to your house. You tell the person on the other end of the line to call you back in five minutes so you can get in the house and put your stuff away. As soon as you walk in the house, the map you received on your cell phone from your car's Bluetooth-enabled GPS system is automatically sent to your Bluetooth-enabled computer, because your cell phone picked up a Bluetooth signal from your PC and automatically sent the data you designated for transfer. Five minutes later, when your friend calls you back, your Bluetooth-enabled home phone rings instead of your cell phone. The person called the same number, but your home phone picked up the Bluetooth signal from your cell phone and automatically re-routed the call because it realized you were home. And each transmission signal to and from your cell phone consumes just 1 milliwatt of power, so your cell phone charge is virtually unaffected by all of this activity.
Bluetooth is essentially a networking standard that works at two levels:
It provides agreement at the physical level -- Bluetooth is a radio-frequency standard.
It provides agreement at the protocol level, where products have to agree on when bits are sent, how many will be sent at a time, and how the parties in a conversation can be sure that the message received is the same as the message sent.
Photo courtesy Bluetooth SIGBluetooth wireless PC card
The big draws of Bluetooth are that it is wireless, inexpensive and automatic. There are other ways to get around using wires, including infrared communication. Infrared (IR) refers to light waves of a lower frequency than human eyes can receive and interpret. Infrared is used in most television remote control systems. Infrared communications are fairly reliable and don't cost very much to build into a device, but there are a couple of drawbacks. First, infrared is a "line of sight" technology. For example, you have to point the remote control at the television or DVD player to make things happen. The second drawback is that infrared is almost always a "one to one" technology. You can send data between your desktop computer and your laptop computer, but not your laptop computer and your PDA at the same time. (See How Remote Controls Work to learn more about infrared communication.)
These two qualities of infrared are actually advantageous in some regards. Because infrared transmitters and receivers have to be lined up with each other, interference between devices is uncommon. The one-to-one nature of infrared communications is useful in that you can make sure a message goes only to the intended recipient, even in a room full of infrared receivers.
Bluetooth is intended to get around the problems that come with infrared systems. The older Bluetooth 1.0 standard has a maximum transfer speed of 1 megabit per second (Mbps), while Bluetooth 2.0 can manage up to 3 Mbps. Bluetooth 2.0 is backward-compatible with 1.0 devices

Chicago citation: Julia Layton and Curt Franklin. How Bluetooth Works. How stuff works. http://electronics.howstuffworks.com/bluetooth1.htm (accessed on September 9, 2008)

Summary: This article really make me know that there are still many thing that i did not know. It really make me understand how bluetooth work.

Is stealing wireless wrong?

A man has been arrested after being spotted allegedly sitting in a street with a laptop using someone else's unsecured wireless connection. Is it immoral to do this?

So here's the thing.

You're walking down the street in Hypotheticalville and in front of you is a gentleman who, when he walks, spills seemingly endless torrents of golden coins on to the pavement behind him.

He seems unconcerned by this and you notice that if not picked up, these magic coins quickly evaporate. Is it moral for you to pick a few up?

It's the kind of tree-falls-in-the-forest whimsy that an undergraduate philosopher might mull over for a moment, but back in the real world a not entirely dissimilar debate is being played out.

The man arrested in a street in west London is at least the third person to be accused of breaching the law by taking internet service without permission.

The Communications Act 2003 says a "person who (a) dishonestly obtains an electronic communications service, and (b) does so with intent to avoid payment of a charge applicable to the provision of that service, is guilty of an offence".

There are also suggestions using somebody else's wireless could come under the Computer Misuse Act, usually used to combat hacking and electronic fraud.

But if it can be interpreted as illegal, can it be truly said to be immoral?

Heavy downloading might affect the unsecured person's speed of access or download limit, but a use like checking an e-mail is hardly likely to be noticed. Most "victims" will suffer no loss.

Philosopher Nick Bostrom, director of the Future of Humanity Institute at Oxford University, says with technology moving rapidly, socially-accepted moral positions can be slow to solidify.

"I haven't thought about it. I'm not sure anybody has. It might be one of those areas where cultural norms haven't evolved or stabilised yet. It's so new it's not clear whether it's stealing or not. And sometimes the law trails public norms.

"If you steal a silver Mont Blanc pen it's theft but if it's an ordinary ballpoint pen or a pencil it is assumed you can take it.

"In the olden days people had norms about whether you were able to pick apples from someone else's tree. Perhaps it's OK if the branches hang over the road, but not from inside their garden. You have generally shared expectations."

In 2002 Matt Jones, the original designer of the BBC News website, devised "warchalking" with a group of friends. These chalk symbols on walls and pavements showed those in the know where free wireless internet was.

Chicago citation : Finlo Rohrer. Is stealing wireless wrong?. BBC News. http://news.bbc.co.uk/2/hi/uk_news/magazine/6960304.stm ( accessed September 9, 2008)

Summary: This thing is called war driving. Stealing a wireless connection from someone else. It is a bad activity because the owner of the wireless could not get full usage of what he pay.

Large hadron collinder... is it the end of the world....

source from: http://www.telegraph.co.uk/earth/main.jhtml?view=DETAILS&grid=&xml=/earth/2008/09/05/scilhc105.xml


They said that this machine will be use to test the big bang theory... Also can produce a small black hole... some said that it could get bigger until the entire earth will be pull into that hole...
We don't want that to happen right... it mean that that this machine could create the last day... All with Allah will....
Even right now, the sign of 'KIAMAT' or the last day that stated in the Quran has occured... but man always ignore them..... we see that the muslim once are the respected people in the earth has fall to the lowest rank of people...if we can not believe it wait until muslim be the greatest 'Ummah' once again... That has been promised by Allah....
You can see the sign has occured infront of you... Maksiat are done everywhere... The homosex people everywhere even in malaysia..... Man want to be woman and woman want to be man.... hmmmm.... no need for me to explain more right.... maybe now is the time for you to open the Quran translation and find what i'm talk about......
Word in the Quran will never change... and it did not came from human... because human's mind could not reach God's mind... Allah said to something to happen and it happen....
'kun fayakun'.......


this is my opinion base on the fact that i know... :)

Wallahuallam..........