Ethernet card, how do i know if my laptop has an ethernet card installed?

Question

im trying to install a DSL line, i got the installation kit from at&t and when im installing it it says that i needto install an ethernet card, so how do i know if i have one already? if not which one should i choose?

Answer 1

If you have one, then it will look like a huge phone plug, like the plug you plug your normal phone into on the wall, it looks like that only quite a bit bigger.