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What is Internet?
Other users.The Internet
is a huge collection of computer networks that
can communicate with each other- a network of
networks. A network, further, is a collection
of interconnected individually controlled computers
through networks, each computer user can communicate
and share common resources, such as printers and
storage space, with
When you connect to Internet from
office or home, your computer becomes a small
part of this giant network.
Internet is a huge network of
computer networks. Computers of all kinds constitute
the Internet. It is an umbrella under which many
different networks, small or big, freely exchange
information. How does
the Internet work?
In order to make the Internet work the requirements
is:
- A physical connection between the computers,
and
- A common language called TCP/IP (Transmission
Control Protocol/Internet Protocol) for the
computers to communicate over the Internet.
By using TCP/IP protocol, all kinds of computers
with different operating system fun on the Internet.
What is WWW?
The World Wide Web (WWW) is a
vast collection of documents stored on the Internet
Computers.
World Wide Web is considered one
of the key milestones in Internet Usage. WWW has
changed the way information is accessed on the
Internet since its inception.
Tim-Berner-Lee invented the web
(WWW) in early 1990s.
It has grown very rapidly. Four
years ago only around 1250 web servers were online.
Today over 10,00,000 web serves.
The idea behind the development
of the web was to provide easy access to information
and to provide the capability to move freely on
the Internet.
WWW documents can contain text,
pictures, sound, videos and more.
What is web server?
Web server is a program and a
computer clubbed in to one entity, which responds
to the requestor from web browsers for Internet
resources.
What is Home Page:
Home page is the first hypertext
document to be shown when a user follows a link
to the web server.
What is
HyperText Transfer Protocol (HTTP)?
Hypertext Transfer Protocol is the protocol used
by the Web to transfer hypertext documents and
other Internet Resources.
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What is URL (Uniform Resource
Locator)?
Uniform Resource Locator is a
special scheme that tells the user exactly where
a resource is located on the Internet.
What is web browser?
A web browser is a program that
is allows a user to display and interact with
a hypertext document. Some of the popular web
browser is Microsoft Internet Explorer, Netscape
Navigator, Eye, Neoplanet, Lynx etc.
Web browsers are of two types:
1. Text Only Browsers
A text only browser such as
Lynx allows you to visit web pages without showing
art or page structure. Essentially you look
at text on the screen. The advantage of a text-only
browser is that it displays web pages very fast.
This is because it need not transfer images,
voice and other media that occupy large amount
of memory.
2. Graphical Browsers
The two graphical browsers that
are currently in use are Netscape, Internet
Explorer. The graphical browsers are significantly
slower than their text only counterparts since
the multimedia files/graphics in these browsers
often take a long time to download.
NOTE : You can
download the browsers free from the following
URLs
Netscape Navigator : http://home.netscape.com
Microsoft Internet Explorer :
http://www.mocrosoft.com > downloads
How to surf the web with
a Browser?
Netscape Navigator and Microsoft
Internet Explorer are very popular browsers in
use today. Both browsers have a simple tool bar
for navigating the web including the web buttons
to move backward and forward through pages you
have visited as well as button to reload/refresh
the current page. Several other options, including
printing and searching, are also available from
the toolbar.
You can jump to any site on the
web by typing its URL in the Location Box/ Address
Bar and pressing Enter. Both Netscape and Internet
Explorer use the search button to find just about
any web site that is available.
Internet Explorer and Netscape,
both remember your favorite web pages by using
bookmarks creating bookmarks allows you to create
a permanent link to the current page. You can
instantly jump to any of the your marked pages
by selecting it from the Bookmark Menu.
Hyperlinks on the web
page:
Hyperlink allow you to jump to
another page on web. Normally, hyperlink text
is underlined and appears in a different colour
on the webpage. (Mainly Blue colour). There is
another way to identify the hypertext (Link).
When your cursor points to it the hand sign will
appear. |
