The document provides an introduction to the internet, describing it as a global network of interlinked computers that communicate using the Internet Protocol. It discusses the history of the internet, starting with ARPANET, and defines several key terms related to internet technology, such as domain names, web browsers, and email. The document also differentiates between the World Wide Web and the internet, emphasizing the Web as a rapidly growing segment that facilitates information sharing.

1. Introduction To Internet

2. What is the Internet?
1. The internet in simple terms is a
network of the interlinked computer
networking worldwide, which is
accessible to the general public.
These interconnected computers
work by transmitting data through a
special type of packet switching
which is known as the IP or the
internet protocol.

3. History of INTERNET
 ARPANET was the network that became the
basis for the Internet. Based on a concept first
published in 1967, ARPANET was developed
under the direction of the U.S. Advanced
Research Projects Agency (ARPA).
 In 1969, the idea became a modest reality with
the interconnection of four university computers.
The initial purpose was to communicate with
and share computer resources among mainly
scientific users at the connected institutions.

4. Some Basic Internet
Definition
 Arpanet - The precursor to the Internet.
 ASCII - American Standard Code for Information
Interchange. The de facto world wide standard code
for alphanumeric characters.
 Blacklist - Describes inappropriate advertisers on Usenet
newsgroups and via junk E-mail.
 Browser - A program that is specifically used to look at
various WWW resources.
 Client - Any computer that makes use of services
available from other computers.

5. Some Basic Internet
Definition
 Domain Name - A unique name that identifies an
Internet site. The name always has two or more parts
separated by a dot. The last part of the name
identifies the site ( i.e. Gov for government, edu for
education, com for commercial, or net for network).
An electronic street address.
 E-mail - Messages, usually text, sent from one person
to another via a computer.
 Fire Wall - A combination of hardware and software
that separates a LAN into two or more parts for
security purposes.

6. Some Basic Internet
Definition
 Host - A computer or software package which provides a
specific kind of service to other computers. One that is seen
by other computers on the Internet.
LAN - Local Area Network. Several computers located in the
same physical location which are connected together in
order to share information and services.
 Modem - A device that allows a computer to use a phone line
to communicate with another computer.
 Protocol - The rules of conduct which enables a computer to
communicate with another computer.
PPP - A protocol that allows a computer to use a telephone
line and a modem to make TCP/IP connections.

7. Some Basic Internet
Definition
 Server - Any computer that makes services
available to other computers.
 TCP/IP - Transmission Control Protocol/Internet
Protocol. This is the protocol which defines the
Internet.
 URL - Uniform Resource Locator. A unique name
that identifies an Internet site.
 WWW - World Wide Web. The universe of
hypertext servers.

8. What is the difference
between the World Wide
Web and the Internet?
 The World Wide Web (The Web) is only a portion of what
makes up the internet, but it is the fastest growing part of
the internet. The Web lets people, organizations and
companies publish information for other people to see. This
makes the Web a very useful tool for finding information on
just about any topic.
 The Web is a large number of computer documents or "Web
pages" that are stored on computers around the world and
are connected to one another using hyperlinks. These Web
pages can be seen by anyone through their computer's
"Web Browser," which is the program you are using now.

9. Web Browsers
 Web browsers are programs used to explore the
Internet. There are many Web browser programs
available including Netscape Navigator, Internet
Explorer and Opera. Internet Explorer is the
Internet browser made by Microsoft and comes
with Windows operating system.
For example: Mozilla, Chrome….etc.

10. Search Engine
 A Web Search Engine is designed to search for
information on the World Wide Web.
 The search results are generally presented in a
line of results often referred to as search engine
results pages (SERPs).
 The information may be a specialist in web
pages, images, information and other types of
files.
For example: Google, Bing….etc.

11. E-Mail
 Email, sometimes written as e-mail, is simply the
shortened form of “electronic mail,” a system for
receiving, sending, and storing electronic
messages.
 It has gained nearly universal popularity around
the world with the spread of the Internet. In many
cases, email has become the preferred method
for both personal and business communication
For example: Gmail, Yahoo….etc.

12. Thank you