Im planning on buying a new PC build but its my first build and I have no clue what a wireless network adapter and/or a wired network adapter are for. I have wifi at home, (Arris router) if that helps. I don't have any ethernet ports in my house (only one but too far away from my room). So which do I get and what does each do? Do I need to adapter to connect to internet, even if I have wifi at home? Thanks!!