NCERT Computer: Chapter 6 – Fundamentals of Internet and Java Programming Part 1

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Image of Fundamentals of Internet and Java Programming

Image of Fundamentals of Internet and Java Programming

Image of Fundamentals of Internet and Java Programming

Introduction

Internet is the world's largest computer network, the network of networks, scattered all over the world.

The help of video conferencing over the internet, it has become possible that people can even see each other while they are communicating. Gradually, shopkeepers are also interested to opt for electronic commerce which provides them greater reach, faster and better ways to do business over the internet. Don't get surprised, if tomorrow you come to know that the paanwalla in your locality has started selling his paan over the internet.

Given this scenario of the internet, there was an implicit need to come up with a programming language to enable authors to incorporate program application fragments (applets) into the web document.

Finally this gave birth to Java programming language. We will discuss about this language in detail in later part of this lesson.

Objectives

  • After going through this lesson you will be in a position to:

  • Explain various terminology used in interent

  • Use various services provided by interent

  • Search for desired information over internet

  • Enjoy internet surfing

  • Define e-mail and its various features

  • explain the features of World Wide Web (WWW)

  • explain the utility of Java programming language and its characteristics

  • identify the relationship between java and the internet

6.3 Internet - The History

In 1969, the U. S. Defence Department funded a project to develop a network, which can withstand the bombing.

This project was known as ARPANET.

The proposed network was not supposed to have a central control-which would be an obvious target.

These workstations and LANs were then connected to the ARPANET. For next decade the ARPANET grew and its decentralized features helped its rapid expansion.

This standard used by ARPANET is known as NCP (National Control Protocol).

Protocol is a network term used to indicate the standard used by a network for communication.

IP handles the addressing, and makes sure that a packet reaches its destination through multiple nodes and even across multiple networks with multiple standards.

This flexibility of TCP/IP to handle multiple protocols encourages other networks to get connected to ARPANET.

Internet is termed by some people as the world of largest democracy with no government. It has no state head to control it.