yes you can
First, you need to have a wireless router. Second, install an airport card to the laptop.
Apple's Airport and Airport extreme are standard Wi-Fi network interfaces. You will need a Wi-Fi network card on a PC to connect to them. A standard Ethernet network card connects with Ethernet cabling and does not work with Wi-Fi.
An Apple airport card is used to connect an Apple product to the internet at an airport location. You can find many of these for sale on Ebay, ranging in price.
install a wireless card on your laptop, and have wireless internet (via modem) in your home
Apple's iBook laptops can connect to the Internet. The early versions of the iBook did not come with an AirPort (Wireless) connection - you needed to add an Airport card - so will need to be connected through a wire - usually an Ethernet cable plugged into the router.
It is a card that fits inside your Apple computer and connects the computer to wireless networks. Recent Macs will have one already fitted but you will need to add one to older Macs - after checking that they are compatible.
All iMac G5 computers have the option for AirPort (Wi-Fi). Early models did not come with AirPort cards installed, but have an AirPort card slot in which an original AirPort card can be easily installed.
Yes, all new MacBook Pros come with a built in AirPort Extreme wi-fi card with 802.11n capabilities.
The G3 iBook (M6497) had the option of adding the AirPort wireless card. An individual G3 iBook today would need to be checked to see if the AirPort card is present.
You need the airport card ( expensive )
A wireless networking card to install within your computer, or a USB wireless adapter.
It is different for an Apple and a PC. For an Apple, you must have an airport card. That card will have the ability to pick up wi-fi signals, something you need. You would install the airport card near the battery. Once installed, just type in your password and router name in your settings under internet, and you should be able to connect.