Rivision Notes: Internet | Computer Science for Class 5 PDF Download

Introduction

The uses of the Internet

• Send/Receive e-mail messages.
• Send (upload) or receive (down load) files between computers.
• Participate in discussion groups, such as mailing lists and newsgroups.
• Surfing the web.
• Online Chat
• Video-conferencing
• E-Commerce
• Social Networking

How to access the Internet?

• Many schools and businesses have direct access to the Internet using special high-speed communication lines and equipment.
• Students and employees can access through the organization’s local area networks (LAN) or through their own personal computers.
• Another way to access the Internet is through Internet Service Provider (ISP).
• Many schools and businesses have direct access to the Internet using special high-speed communication lines and equipment.
• Students and employees can access through the organization’s local area networks (LAN) or through their own personal computers.
• Another way to access the Internet is through Internet Service Provider (ISP).

Web Browsers

• Once you have your Internet connection, then you need special software called a web browser to access the Web.
• Web browsers are used to connect you to remote computers, open and transfer files, display text and images.
• Web browsers are specialized programs.
• Examples of Web browser: Netscape Navigator (Navigator) and Internet Explorer, google crome.

Websites

• The Web (World Wide Web) consists of information organized into Web pages containing text and graphic images.
• It contains hypertext links, or highlighted keywords and images that lead to related information.
• A collection of linked Web pages that has a common theme or focus is called a Web site.
• The main page that all of the pages on a particular Web site are organized around and link back to is called the site’s home page.

Search Engines

• A number of search tools have been developed and available to you on certain Web sites that provide search services to help you to find information.
• Examples
  (i) Google → www.google.com
  (ii) Yahoo → www.yahoo.com
  (iii) Ask.com → www.ask.com
  (iv) AltaVista → www.altavista.com
  You can find information by two basic means.
• Search by Topic and Search by keywords.
  Search by Topic
  You can navigate through topic lists
  Search by keywords
  You can navigate by entering a keyword or phase into a search text box.
  
  www.google.com in internet explorer web browser

Exploring the different websites

Steps to open any website

• Open any web browser installed on your computer example Internet Explorer, Google crome, Mozilla Firefox etc.
• Type the website address in URL space or if you don’t know the website name then you can open any search engine and then find the address from i

There are several websites that helps you to get information from the internet. Let try some important websites

KVS Website

6Vidyalaya’s Website
Same like KVS HQ website, you can open your vidyalaya website also. Vidyalaya website consist many information about your vidyalaya like: Important announcements, Exams information, Date Sheet, Result Analysis, Staff details, TC information, Contacts, VMC details, Students Enrollments, Students/Teachers achievers, Alumni, Photo Galley, Admission, Fee information etc. Ask your teacher about the web address of your Vidyalaya and open it. Open the different web pages of the website to get the desired information.

Wikipedia
Wikipedia is a free encyclopedia, written collaboratively by the people who use it. It is a special type of website designed to make collaboration easy, called a wiki.
You can open the Wikipedia by the web address en.wikipedia.org/wiki
In Wikipedia, you can search for anything for which you required information.