Internet and Email

Subject: Computer Basics

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Overview

The internet is the largest network that connects millions of computer around the world. It is also known as networks of networks. This note gives the basic concepts about the internet and its services.
Internet and Email

The internet is the largest network that connects millions of computer around the world. It is also known as networks of networks. It provides data, information and other services to the client computers.

By using telephone line or normal modem, we can connect internet in personal computer. The Internet Service Provide is a company that provides the Internet facility to the users. A computer can be connected to the Internet using Integrated Service Digital Network (ISDN), cable line, leased line and satellite. Nepal Telecom (NTC), World link, etc are some ISPs of Nepal.

Services on the Internet

Some of the services provided by the Internet are as follows:

  • World Wide Web
  • Electronic Mail
  • Electronic Fax
  • Telnet Service
  • File Transferring
  • Video Conference
  • Chatting

Email

Short for electronic mail, the transmission of messages over communications networks. The messages can be notes entered from the keyboard or electronic files stored on disk. Most mainframes, minicomputers, and computer networks have an e-mail system. Some electronic-mail systems are confined to a single computer system or network, but others have gateways to other computer systems, enabling users to send electronic mail anywhere in the world.

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Things to remember
  • The internet is the largest network that connects millions of computer around the world. It is also known as networks of networks. 
  • Short for electronic mail, the transmission of messages over communications networks.
  • Some of the services provided by the Internet are as follows:

    • World Wide Web
    • Electronic Mail
    • Electronic Fax
    • Telnet Service
    • File Transferring
    • Video Conference
    • Chatting
  • It includes every relationship which established among the people.
  • There can be more than one community in a society. Community smaller than society.
  • It is a network of social relationships which cannot see or touched.
  • common interests and common objectives are not necessary for society.
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History of the Internet
How Does the Internet Work ?
Questions and Answers

Internet is the largest computer network that can connect millions of computers around the world. It connects several thousands computer networks all over the world. So, it is known as networks of networks. The internet is an information superhighway and has logically connected the world into a cyber village. Some common services of the internet are:
1) World Wide Web
2) E-mail
3) Newsgroups
4) Chatting
5) Videoconference
6) E-Commerce
7) Downloading and Uploading files

Search engine is the web site that allows the users to search information based on a keyword or combinations of keywords in different subjects and topics. Some of the search engine web sites are: google.com, yahoo.com, bing.com etc.
E-commerce is also one of the important services of internet through which you can sell or buy goods. In simple terms, it is doing business through the internet or online business through internet. You can use the e-commerce site are: www.municha.com.np, www.ebay.com and www.sajhapasal.com etc.
Web browser is a software or program that accesses web pages and displays them on the user's computer from around the world. In another terms, it is software required for browsing and surfing web sites. It also allows user to retrieve, view and copy information using Internet. Some popular web browsers are Mozilla Firefox Google Chrome, Internet Explorer, Safari etc.

Some Internet security measures are:

1) By installing firewalls programs on computer networks to prevent unauthorized access to network.
2) Install different antivirus and anti-spyware software.
3) By setting different security options in browsers.
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