Wireless internet - To create a wireless home/office network you need a wireless router/modem, this would spread a wireless signal round the house/office. To access the internet you would need a wireless USB dongle, that connects to a USB slot in the back of the PC.
Dialup internet - If you are using the old-fashioned dialup internet make sure you specify a 56k modem as our PCs do not support dialup internet as standard.