Preparing Computer for Internet Access


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There are many ways to obtain access to the internet. The method varies according to the type of devices (computer, laptop, mobile) being used and type of connections offered.

ISPs and Examples (Broadband/Dialup/Wi-Fi)

Internet Service Provider (ISP) is the gateway to access internet. It is an organization that gives access to the internet. ISPs provide services for home, large industries, government sectors, etc. There are two types of connections −

  • Instant − Starts when user dials-up for connection and ends after the session is over.

  • Full-time − The connection prevails 24/7 even if the session ends.

Broadband

Broadband connections are considered as high speed connections, as they use modes that can handle several signals at once, such as fiber optics, twisted pair cables, coaxial cables and other technologies.

Dial-up

In dial-up connection, the computer uses its modem to dial a telephone number given to user by an Internet Service Provider. This launches a connection between personal computer and ISP server. The dial-up connections are temporary, as the connection ends once the session gets completed.

Wi-Fi

Wireless LAN has become popular for use these days which is based on the technology called Wi-Fi (Wireless Fidelity). This uses radio waves to transmit signals and provides access to the internet within a short distance.

Below is the list of Internet Service Providers −

Sr.No. ISP Narrowband Broadband
1 Airtel 52,064,601 38,473,189
2 Vodafone 39,726,68 27,760,081
3 Idea Cellular 21,110,847 22,924,981
4 Reliance 23,449,233 15,567,769
5 BSNL 13,740,051 20,351,570
6 Aircel 14,906,282 7,541,005
7 Tata Teleservices 11,812,117 9,229,125
8 Telenor India 13,671,479 0
9 MTNL 456,096 1,511,496
10 Videocon 1,213,631 0
computer_concepts_introduction_to_internet_www_web_browsers.htm
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