Computer Spot

You may have just bought your first computer home and are anxious to connect it to the internet and start browsing, or perhaps you just need to move your current computer. You can choose to extend the wires across your home, or you can buy a wireless router.

What is a wireless router? In short, it is a device that connects you to your modem-it will not connect you directly to the internet, so if you don’t currently have a modem you either need to buy a router/modem combination or buy the modem first.

It is the modem that connects to the internet, and in turn will pass information to your computer from the internet and vice versa. It normally does this through a wire that is plugged into a port in the back of your computer or internet. The wire has to be connected at all times for you to get a connection and so if you wish to move your computer or laptop, you need a longer wire. Read the rest of this entry →

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Occasionally, problems may occur with your wireless router. When they do you are likely to lose all or partial access to the internet, and so you will want to resolve them as quickly as possible.

The first thing to do is work out whether you have completely lost access, or whether it is just running very slowly. If it is down completely then it is likely that your internet service provider is having problems and you may not be able to overcome it.

When your net goes down completely your modem will normally display a warning signal in the form of a flashing light, or the absence of the light that normally indicates that the internet is working.

Your router may also display a similar warning-the modem input light may change to red, may flash or may stop showing.

When this happens you can try and reboot both the router and the modem. However if this does not work you are likely to have to wait till your service provider corrects the problem. Read the rest of this entry →

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The range of operation is decided mainly by the access point that you have. The power of your access points would decide on how long or how far off you can carry your laptop or your client desk top from the access point.

The range of operation is normally not set in a fixed way, but is realized when you move away from the access point.

Where there is not enough signal strength for the system to log on and work on the network, it can disconnect from the network. This will be the limitation caused by the location of the wireless network. As a user, you should be aware of these limitations and the maximum you range you can cover at your home.

You might have to reconnect if you go out and come back in. This could spoil any server based work if it is running when you are moving out of the network space or hot spot. Read the rest of this entry →

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Components that make up your wireless system are simply the two units: one, the wireless router or the access point and two, the wireless card or the connectivity over a WiFi card.

In the case of the access point, you can also connect to an Ethernet network or to a broadband internet line. That is the additional facility that you might have on your wireless router.

On your wireless card, if you have configured with a server allocated IP address, it is easy for your laptop to be placed anywhere and still get connected to any of the servers there, provided they are also configured in the same way.

Dynamic allocation is therefore, the best method for connection where you might move in and out of multiple networks or there are multiple numbers of people who might log in and out of the network. Under all these circumstances you will find that the laptop is better configured and equipped to work at ease with this wireless modem. Read the rest of this entry →

When you first bring your router home, you can run it straight out of the box. It is often possible to simply plug it into the mains, plug the modem into it and search for the wireless signal. You can connect your computer to it right away with a nice, clean, strong signal and are away!

But then so can everyone else who can see your signal. The problem is that a wireless router will broadcast its presence far and wide, within the limits of it’s signal strength.

If it is in the very middle of your home, then it may not reach far outside but set it next to a wall and you could be providing a free internet service for all of your neighbors. Read the rest of this entry →

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A wireless system requires you to have a wireless card that does the job of receiving and transmitting data. This is either on your computer or laptop.

Most laptops, as I said earlier, come with the card installed on it. All that you have to do: go to your operating system and enable the card. You can start using it immediately.

Well, this might not be the case with all machines or laptops. Please note that there are also laptops that fitted with Bluetooth and not with WiFi. In these laptops and machines, you need to install the wireless card to get it connected to the access point. Read the rest of this entry →

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For every one of the systems that we discussed earlier there are devices that would enable communication. In case of WiFi equipments too, you will find a number of WiFi equipments that meet your needs.

You need to have an access point which will tie to a static server over an Ethernet network as shown in figure 1.3. Access points are wireless nodes that are configured to receive and transmit wireless RF signals on a network.

It also serves to connect the computers across a network. They also bridge the wired Ethernet network with the wireless systems. Read the rest of this entry →

WLAN stands for Wireless Local Area Networking or just Wireless LAN. The wireless LAN can be set up using any of the wireless communication methods that are normally used.

The most common one is the WiFi or Wireless Fidelity systems. This is the brand name for such wireless systems produced by the WiFi Alliance.

So what is this WiFi? WiFi is a standard protocol and brand owned by the WiFi Alliance. Most internet service providers are subscribers to this brand and make equipments that fit into this interface. Read the rest of this entry →

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Ok, so who are the people that make these gadgets? All that you would require are these two components primarily, all the rest are optional.  However, we will take a closer look at these two components and a bird’s eye view of the others.

One of the largest wireless router or access point makers is NetGear. There are also others like D-link, Buffalo, Linksys and Kyocera.

There are also others who make the same products; the capacities/sizes are relatively smaller. Most of these manufacturers make both the access points as well as the cards for your computers.

Again the cards come as plug-in options, adaptable with your computer; they can also be fitted into your laptop’s USB port. Most of the laptops these days come with an inbuilt WiFi adapter. Read the rest of this entry →

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If you want to do wireless networking, you need a device that will link the computer to the server over a wireless transmission system.

This is a device we call the access point. You will connect to this access point from your computer. Normally, this is the nearest access point or the strongest access point.

The word ‘strongest’ refers to the signal strength at that point! Make sure you have a wireless card on your computer or laptop. Read the rest of this entry →

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