5.5.1 ISPs and examples (Broadband/Dialup/WiFi)

An Internet service provider (ISP) is an organization that provides services for accessing, using, or participating in the Internet. Internet service providers may be organized in various forms, such as commercial, community-owned, non-profit, or otherwise privately owned.

Internet services typically provided by ISPs include Internet access, Internet transit, domain nameregistration, web hosting, Usenet service, colocation.

Some of  the ISP's are:

  1. VSNL(Videsh Sanchar Nigam Limited)
  2. MTNL(Mahanagar Telephone Nigam Limited)
  3. Mantra Online
  4. NetCracker
  5. Satyam
  6. Tata-indicom
  7. Airtel

Choosing an Internet service

  • Dial-up: Dial-up is generally the slowest type of Internet connection, and you should probably avoid it unless it is the only service available in your area. Like a phone call, a dial-up modem will connect you to the Internet by dialing a number, and it will disconnect when you are done surfing the Web. Unless you have multiple phone lines, you will not be able to use your land line and the Internet at the same time with a dial-up connection.
  • DSL: DSL service uses a broadband connection, which makes it much faster than dial-up. However, it is unavailable in many locations, so you'll need to contact your local ISP for information about your area. DSL connects to the Internet via phone line but does not require you to have a land line at home. Unlike dial-up, it will always be on once it's set up, and you'll be able to use the Internet and your phone line simultaneously.
  • 3G and 4G: 3G and 4G service is most commonly used with mobile phones and tablet computers, and it connectswirelessly through your ISP's network. If you have a device that's 3G or 4G enabled, you'll be able to use it to access the Internet away from home, even when there is no Wi-Fi connection. However, you may have to pay per device to use a 3G or 4G connection, and it may not be as fast as DSL or cable.

Wirless Network

A home network can be wired (using Ethernet cables) or wireless (using Wi-Fi). It may also be a mixture of the two, with some devices connecting with Ethernet and others connecting wirelessly.