Types of internet connections:
- Dial-up connection: A phone line and a modem are used for a dial up connection. It uses PPP (Point to Point Protocol). A dial up networking program is used to connect to the ISP (Internet Service Provider) by dialing the phone via modem. User name and password is used to login to the account and then a PPP connection is established to connect to the internet.
- DSL connection: DSL refers to Digital Subscriber Line. For this type of connection high speed phone lines known as ADSL (Asymmetric Digital Subscriber Line) are used. Asymmetric means that more data can be downloaded from the internet than uploaded to the internet. DSL line can be used simultaneously for connecting to the internet and calling from a phone. For using a DSL connection, a DSL modem is required.
- ISDN connection: ISDN stands for Integrated Services Digital Network. ISDN are high speed phone lines used for swift internet access and phone calls. A common ISDN service is BRI (Basic Rate Interface. For connecting a computer to the ISDN line, an ISDN adapter is used.
- Leased line: A leased line is used to send and receive large amount of data in a corporate setting. Speed of a leased line is designated, for example, T1 which means 1.5 megabits per second.
- Cable TV internet connection: In this connection a cable TV connection is used to access the internet. It offers high downstream speeds, but less upstream speeds. Here, a cable modem is used to connect to the internet.
- Satellite internet connection: For a satellite internet connection, DSS (Digital Satellite Systems) and DBS (Direct Broadcast Satellite) systems are used. To connect to internet via satellite an antenna, PC adapter card, coaxial cable, and Windows based software are used.
- Wireless internet connection: It is also known as WAP (Wireless Application Protocol). A wireless internet connection can be used to connect devices like laptops, cell phones and tablets wirelessly without a physical connection.