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Connection Type Description
DSL stands for Digital Subscribers’ Line and is always connected to the
2. DSL (Digital
Internet, so you do not have to dial up to connect. It is considered to be
Subscribers’ Line)
broadband Internet, which means that it has a high speed.
3. Cable Internet Cable Internet connections are possible through Cable TV lines. The Cable
Connection Internet connection uses TV channels for data transmission.
Wireless Internet is one of the newest types of Internet connections. It uses
4. Wireless Internet
radio frequencies to connect to the Internet. Examples of wireless Internet
Connection
connection are WiFi and WiMax.
5. Satellite Internet Internet over Satellite (IoS) uses the communication satellites stationed in
Service space to connect to the Internet.

Do You Know
ISDN which stands for Integrated Services Digital Network, is also a type of Internet connection
which could not become popular among users due to certain limitations.

THINGS REQUIRED TO CONNECT TO THE INTERNET
To connect to the Internet, your computer requires a modem, a Web browser and a connection to an
ISP. Let us first learn more about these basic requirements of connecting to the Internet.
Internet Service Provider (ISP)

An Internet Service Provider (ISP), also sometimes referred to as Internet Access Provider (IAP),
is a company that provides its customers access to the Internet. The ISP connects to its customers using any
one of a data transmission technology such as dial-up, DSL, cable modem, wireless or dedicated high-speed
connections. Some of the Internet Service Providers of India are:

Remember

ADSL (Asymmetric DSL) is a type of DSL that provides high speed downloaded speeds up as
significantly lower speed to upload data on the Internet. This type of service is most suitable for
houses and places where most of the times information is download.

Modem
A modem is a device that converts a computer’s outgoing data into a format that can be
transferred via the telephone lines. Modems can also convert the incoming data into a format that
the computer can read. Some of the different types of modems are: internal modems, external
modems, voice/data, and fax modems.

digital analogue analogue digital
signal signal signal signal
011010010 011010010

Modem Modem
Computer telephone line Computer
Working of MODEM

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