THE WORLD WIDE WEB
The World Wide Web (www) is a huge collection of documents called web
pages written in HTML ( Hyper Text Mark-up Language ). These pages are
linked to each other by hyperlink. When a hyperlink takes you to a picture
or video , it is known as hypermedia .
The World Wide Web was conceived in 1990 at CERN Switzerland , at the
European Laboratory for Particles Physics by a young scientist Tim Berners
Lee . The World Wide Web is now managed by a committee which is
known as the World Wide Web Consortium (W3C).
A web browser can read web pages written is Hyper Text Mark-up
Language ( HTML ). Browsing is using browser software to visit
different websites on the World Wide Web . Browsers give you access
to the millions of web pages on the World Wide Web.
The Some popular Examples of Web Browsers are : Internet
Explorer , Mozilla Firefox, Google Chrome, Opera .
Every websites on the Internet has a
unique address known as its
Uniform Resource Locator (URL).
Give below are URLs of some sites :
TO DOWNLOAD CHROME
To download chrome follow these steps :-
Type google.com in
All web browsers heave an address bar . These is
where we type the URL ( Uniform Resource
Locator) or the address of the website we want
to visit .
When you enter the URL in the browser’s
address bar , it causes the Home Page of the
site to appear in your browser. The Home page
of the website will have link to other pages of
DOWNLOADING A WEB PAGE
Each time you visit a web page , the
browser makes a copy of the web page
in your PC . In other words it download a
page in your computer.
SAVING A WEB
To Save the web page do this :
Click the control tool button > save page as >
The save page window appears . Save the web
page in the location you want .
TO COPY TEXT INFORMATION FROM A WEB PAGE
Select the information on the webpage you need to copy by
dragging your mouse .
Right click your mouse and click Copy in the short-cut menu
Open Microsoft Word and click Paste . The select text will be
Save the text file give it a name
TO COPY A PICTURE OR IMAGE FROM A WEB PAGE
To copy a picture or image from web page follow these
o Right click the image you want to save .
o Click Save Picture As from the shortcut menu. The
save picture dialog box appears .
o Save the file in the desired location.
The Internet is a huge storage house of information in the form
of text, image and videos. To retrieve the relevant information
we need a special software called a Search Engine.
When we do not know the URLs of the sites which contain the
relevant information, we need search engines to save us a lot of
effort and time . Google.com, Alta Vista.com, Yahoo.com,
Hotbot.com, and webcrawler.com are some popular search
engines on the world wide web.
WORKING WITH GOOGLE
Google.com is a very popular search engine. To
get to Google.com, type www.google.com in
the address bar of your browser. The Google
homepage open up. Enter the keywords in the
Google Search text box. If you are looking for
include text and
images, click the web
option on top of the
text box. Click Images
if you are looking
especially for images.
TIPS FOR QUICK AND ACCURATE SEARCH
1) Give a space and a – ( minus ) sign before specific
words not wanted.
2) Wildcards (*) can be used to search for a string of
3) There is no need to type entire sentences. Words like of,
and, which, why etc. can be avoided.
4) For a more extensive search try the Advance Search
Google Search Engines.
EXAMPLES OF WEB 2.0 SITES ARE FOLLOWS:
Social Networking sites like Facebook.com,
Orkut.com, Twitter.com, Myspace.com etc.
Music and Videos sites like YouTube.com .
Image sites like Flickr.com, Picasa
Blogging sites like Blogger.com,