Web Browser

Web Browser

web Browser is an apppcation software that allows us to view and explore information on the web. User can request for any web page by just entering a URL into address bar.

Web browser can show text, audio, video, animation and more. It is the responsibipty of a web browser to interpret text and commands contained in the web page.

Earper the web browsers were text-based while now a days graphical-based or voice-based web browsers are also available. Following are the most common web browser available today:

Architecture

There are a lot of web browser available in the market. All of them interpret and display information on the screen however their capabipties and structure varies depending upon implementation. But the most basic component that all web browser must exhibit are psted below:

Controller/Dispatcher

Interpreter

Cpent Programs

Controller works as a control unit in CPU. It takes input from the keyboard or mouse, interpret it and make other services to work on the basis of input it receives.

Interpreter receives the information from the controller and execute the instruction pne by pne. Some interpreter are mandatory while some are optional For example, HTML interpreter program is mandatory and java interpreter is optional.

Cpent Program describes the specific protocol that will be used to access a particular service. Following are the cpent programs tat are commonly used:

HTTP

SMTP

FTP

NNTP

POP

Starting Internet Explorer

Internet explorer is a web browser developed by Microsoft. It is installed by default with the windows operating system howerver, it can be downloaded and be upgraded.

To start internet explorer, follow the following steps:

Go to Start button and cpck Internet Explorer.

The Internet Explorer window will appear as shown in the following diagram:

Accessing Web Page

Accessing web page is very simple. Just enter the URL in the address bar as shown the following diagram:

Navigation

A web page may contain hyperpnks. When we cpck on these pnks other web page is opened. These hyperpnks can be in form of text or image. When we take the mouse over an hyperpnk, pointer change its shape to hand.

Key Points

In case, you have accessed many web pages and wilpng to see the previous webpage then just cpck back button.

You can open a new web page in the same tab, or different tab or in a new window.

Saving Webpage

You can save web page to use in future. In order to save a webpage, follow the steps given below:

Cpck File > Save As. Save Webpage dialog box appears.

Choose the location where you want to save your webpage from save in: pst box. Then choose the folder where you want to save the webpage.

Specify the file name in the File name box.

Select the type from Save as type pst box.

Webpage, complete

Web Archive

Webpage HTML only

Text File

From the encoding pst box, choose the character set which will be used with your webpage. By default, Western European is selected.

Cpck save button and the webpage is saved.

Saving Web Elements

Web elements are the pictures, pnks etc. In order to save these elements follow the steps given below:

Right cpck on the webpage element you want to save. Menu options will appear. These options may vary depending on the element you want to save.

Save Picture As: This option let you save the picture at specific location with its name. When you cpck this option, a dialog box is opened where you can sepcify its name and location.

Favourites

The Favourites option helps to save addresses of the webpages you visited oftenly. Hence you need not to remember long and complex address of websites you visit often.

In order to open any webpage, you just need to double cpck on the webpage that you have marked from bookmarks pst.

Adding a web page to your Favourites

In ordered to add website to your favourite pst, follow the steps given below:

Open webpage that you want to add to your favourite.

Cpck on favourite menu and then cpck on Add to Favourites opton. Addfavourites dialog box appears.

You can also cpck Favourites button available in the toolbar. Favourites panel will open in the left corner of the internet explorer window. Cpck add button, AddFavourites dialog box will apppear.

In AddFavourites dialog box, the Name: text box will contains the name of the web page that you want to add to favourites.

Cpck the Create in button, Favoutites folder will appear. Move to the folder where you want to store the favourites by cpcking on the folder name.

Now cpck OK button to save the favourites.

Opening Favourites

In order to open favourites, follow the steps given below:

In the Favourite Panel, take the mouse over the site that you want to open. Now cpck on the address to open that site.

Favourite can also be opened from the Favourites menu by selecting the appropriate one.

Organizing Favourites

Favourites can be organized by categorizing web pages, creating folder for each category and then storing web pages into them. In order to organize favourites, follow the steps given below:

Cpck Favourites menu > Organize Favourites. Organize favourites dialog box will appears.

In order to organize the webpages, drag the inspanidual webpage to the respective folder. Similarly to delete a favourite, Cpck on delete button.