Setting Up Your Computer 27NOTICE: Do not install your computer in an enclosure that does not allow airflow.Restricting the airflow impacts your computer’s performance, possibly causing it tooverheat.Connecting to the InternetNOTE: ISPs and ISP offerings vary by country.To connect to the Internet, you need a modem or network connection and anInternet service provider (ISP). Your ISP will offer one or more of thefollowing Internet connection options:• DSL connections that provide high-speed Internet access through yourexisting telephone line or cellular telephone service. With a DSLconnection, you can access the Internet and use your telephone on thesame line simultaneously.• Cable modem connections that provide high-speed Internet accessthrough your local cable TV line.• Satellite modem connections that provide high-speed Internet accessthrough a satellite television system.