Modern computers can access the Internet in many ways. While many computers access the Internet through Wi-Fi, some computers do not have the capabilities. If you have an Ethernet port, you can connect your computer to the Internet using a Ethernet cord and a DSL or cable modem. You can connect Macs and PCs to the Internet in this way, as long as they have Ethernet ports available.
Plug your DSL or cable modem into a power source.
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Plug the DSL modem into a phone line using the "WAN" or "Line" port or plug the cable modem into the cable port.
Plug the Ethernet cable into the DSL or cable modem using the "Ethernet" port. Plug the other end of the Ethernet cable into your computer's Ethernet port.
Open the Internet browser on your computer.