What Is Wi-Fi

Wireless technology has become a prominent field in the area of networking. It has many uses. The most important being portability and mobility. With the help of wireless technology people now can send and receive messages, phone calls, faxes, read files, login on remote machines etc. and perform all the above mentioned duties from anywhere on land, sea, or air.

The technology of wifi has stormed the field of wireless networking. There are numerous applications of wifi. Nowadays it is very useful and critical in business world because today's business gives more emphasis on the communication of the information. Wifi also finds usage at home, workplaces, shops, any public places etc. the study of the advantages and the risks involved in the wifi system is necessary in order to exploit the full use of it.

About wireless networks.

The transfer of information from node to another with the help of electromagnetic waves is referred to as wireless communication. Signals are normally broadcast through free space and are available to anyone who has device capable of receiving them. A new technique of wireless data transmission known as wifi (wireless fidelity) has been developed. Wifi uses the radio waves to transmit the data. It uses the frequency of 2.4GHz and uses SSID for addressing purposes. SSID stands for Service Set Identifier. It uses a set of characters or numbers addresses so that the sending access point can be identified. Any access point which wants to receive the signal must have the same set of SSID as that of sender's SSID.

Advantages.

The usage of wifi system has numerous advantages. The most important advantage is the cost factor. Since there are free hotspots or access points, a free connection between two nodes cab be established in the network.
A wireless network also provides the facilities of mobility. Hence it is now possible to have a wireless connection, free of hard wired connections.It is also easy to install and configure wifi network. It is also easy and generally faster, internet connections are possible by wifi networks.

Dangers and risks.

Since wifi is a wireless connection it uses the shared wireless space. Hence it is possible that many signals of similar frequencies can interfere with each other and cause unnecessary distortions. This leads to the loss of data and the received data may get corrupted. Hence wifi does not ensure an error free connection.
Another danger involved is related to security of data. It is possible that users who are new to the wifi network may setup an insecure access point, without setting the various security configurations.
It is also possible that some miscreants may use the same default SSID everywhere to access the secured access points illegally. The best way to counter these dangers is to learn and study the configuration of the secured network and make it a rule to always use a different SSID for access point and never keep the default value.


Tuesday, July 15, 2008

Nintendo Outpacing PDA WiFi

Nintendo's WiFi plan for Nintendo DS handheld gaming is pushing it a few leagues ahead of the pack.

According to the TechNewsWorld site, Nintendo DS WiFi gamers on the move will partake of free online WiFi gaming in areas of Asia and Europe.

This will allow Nintendo DS owners to find online users at WiFi hotspots, even jumping in with home-based wireless configurations.

Nintendo has already one-upped Pocket PC WiFi gamers with their recent wireless access deal for McDonald's patrons.

The former delivered a knockout punch in the industry by making 7,500 available hotspots in the UK.

Some free access to fortunate Nintendo DS owners who are probably thanking the gaming gods at the moment.

It'll be sheer WiFi hotspot overload for WiFi PDA gamers who were already there, technology-wise.

Nintendo DS users are not only gaining ground-- they're passing the WiFi PDA game community. At least for the moment.

Selecting the wireless connection mode on this handheld is simple next to the comparatively encryption-saddled Pocket PC.

Third-party PDA apps help somewhat, but base WiFi configuration on the Pocket PC can be an exercise in frustration to some users.

It seems to get easier with each subsequent Winows Mobile release.

It's for these reasons that some say Pocket PC gaming is for the more technically savvy.

Let's instead hold out for easier WiFi gaming on Pocket PCs to level out the playing field.

Damian Julien is a Pocket PC gaming authority and long time general gaming hobbyist and reviewer.

He is an IT specialist by trade and has posted numerous articles on Pocket PC emulators, gaming and trends in the industry.

http://www.pdagameguide.com/

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