How do I hook up to the internet at my home?
Generally, you contact an Internet Service Provider and it is hooked up much like a phone would be (I think...I never had a phone hooked up before).
If you rent, your landlord may have information about it.
If you have cable or phone service, the same company likely provides Internet as well.
I highly recommend getting a router and securing it yourself (rather than renting or buying from the ISP), and use that to connect individual devices to the Internet through wired connections or wireless.