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Purchasing a WiFi Card For Your Laptop

Do you want to connect to a wireless network with your laptop? Most modern laptops have an internal wireless network or WiFi Card, although some people may need to purchase an external device. There are PCMCIA and USB compliant Wi-Fi cards available, that will quickly get your laptop connected within minutes. Assuming you have a wireless access point (AP) such as an internet router, you should purchase a WiFi card for your laptop that meet its requirements.
WiFi works by using radio waves - the same principal of how a TV antenna will pick up a TV station. A wireless adaptor connected to your computer will translate data you are sending across the network into a radio signal. It will then submit the data via an antenna. You can basically sum it up as converting 0's and 1's into radio signal.


Your access point could be up to 54mbps, or even over 108mbps. You should purchase a card that is the same transfer speed as your AP. This will be more cost efficient, as the higher the speed of the card, the higher the price. You should also take into the account the standard of the signal the AP is distributing. The most common standard today is 802.11g. Most wireless network cards will be this connection standard.

It is also possible to establish a wireless connection between two computers with wireless or WiFi network cards. Many people prefer a separate access point device as this will allow for more nodes to connect at a time. Operating systems such as Windows provide means to create a peer-to-peer network between two computers. You could use this method if you have a desktop computer, and you simply want to connect to it in order to share files with your notebook computer.

USB network cards can be used on both desktop computers and laptops. PCMCIA wireless network adaptors are usually the most cost effective route to travel. They don't add much extra width to the exterior of your laptops shell. USB adaptors are generally more suited for desktop computers as they are usually about 7 x 20 in dimension.

What can you do with a WiFi card for your laptop?

* If you are connecting to an internet router, you can browse the internet from an region within the signal coverage of the AP's hotspot.

* Share files, photo's and music with other laptops or desktop computers.

* Print directly to a printer connected to another computer.

There are some popular wireless technology manufacturers that have a good reputation and are trusted amongst many home and business network owners. Such manufacturers are Cisco (Linksys), Belkin, Netgear and TRENDnet. When purchasing a WiFi card for your laptop, or other wireless connection items, you should take all the factors outlined above into account. You will most likely be dealing with the 802.11g standard. Many manufacturers prefer this standard due to speed and reliability. If your access point is 54mbps, you do not need to purchase an adaptor that is a higher speed (such as 108mbps) unless you are planning to upgrade the access point.

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