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Please add the detail of what the device is, the make and model, the operating system .
If you are talking about connecting a laptop to a network check that the wifi icon in the system tray is present. If it is hover your mouse above it and click in order to make it display available networks. Highlight the network you wish to connect to and click on the connect button.
It may be that your wifi card is not enabled, different machines have different procedures for enabling disabled wifi cards.
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To connect to the Internet you need a few extra things aswell as a network or wireless card and install the LAN or wireless driver. 1. You need to sign up with an Internet service provider. 2. Connect a LAN cable from your computer to the DSL or cable modem 3. You need a DSL or cable modem and connect and configure the modem to inaccordance with your Internet service provider's instructions. 4. Install Internet Explorer if it has not been done. 5. If everything has been done correctly, when you open Internet Explorer youcan access the Internet.
If you have a wireless router and it is connected to the DSLor cable modem then - To connect to yourwireless router, the router needs its wireless settings to be configuredwith the SSID, encryption key etc., also the wireless cards in all thelaptops/computers needs to be configured with these router's wireless settings.Then the laptops/desktop computers can communicate with your wireless router.
Question #1. Yes, all laptops has a video card. A laptop will not boot up without a video card.
Question #2. No, your laptop already has a video card.
For some information.
In a laptop, you either have 1 or 2 video cards installed in it. One is the video card that is already bundled with the motherboard (we call it integrated) and the other one is another video card that is attached to the motherboard (we call it dedicated). A dedicated video card is bundled to a laptop for purposes of use, mainly for graphics related businesses (like drawing, animation, gaming etc.).
The wireless card in this other laptop needs to be configured with this router's wireless settings. It is using the other wireless router's settings and therefore cannot connect to this wireless router..
Most wireless cards in laptops will allow you to setup different Profiles for different router's wireless settings. This will allow the laptop to connect to the different wireless routers by selecting the Profile for the wireless router you want to use.
I suggest you name the Profile by location which will make it easy to identify the correct wireless router.
A PCMCIA Card is used to connect to your laptop different components that you it doesn't have.
More information about PCMCIA
For most ISPs all you need to connect to the Internet is a network card. Check if your laptop has an integrated network card. Then contact your ISP and ask him if you need something else except a network card to connect to Internet.