Means it is certified to use WIfi
no you dont NEED it, but you do need a router(wifi connection) in order to use the internet on the laptop
I already have wifi built into my laptop thanks.
The majority of laptop manufactures have incorporated Wifi in their laptops. In fact nowadays it would be difficult to buy a laptop without Wifi. Check the popular laptop manufacture websites such as Dell, HP, Compaq, Acer, Apple, Lenovo..etc to find out which laptop models include Wifi.
All laptops come with a wifi card installed. Just check if the card is on.
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no?, do you know what certified is?
Yes, you can use a WiFi connection with this laptop with no problems.
Sadly, no. Although commonplace now, this laptop is a little too old. You can always buy a cheap USB WiFi adapter.
If your laptop doesn't have Wifi included you can buy a USB Wifi adapter at any computer store. The adapter is the size of a standard USB memory stick, with the exception that it has a 802.11 chip and antenna in it. The setup is pretty simple. Simply install the driver that's included onto your laptop, plug in your adapter and your should be ready to connect! :-)
Built in means that it is comes with wifi ability right out of the box. So, you will get built in wifi if you buy a laptop that has wifi built in. In the specifications, look for WiFi, WLAN or for 802.11b 802.11g 802.11n and the laptop has the capability.
You can buy a wifi signal booster for your laptop from tigerdirect.com. You may also want to try amazon.com. A signal booster should help speed up your internet service.
The fact that your other laptop can connect to wifi is irrelevant to whether or not you have disabled wifi on the laptop that is reporting that wifi is disabled. Go into your settings and make sure you haven't inadvertently turned it off.