BROWSE

                                                  WEB-BROWSER

DEFINITION:

Web browsers are basically software programs that allow you to search for and view various kinds of information on the World Wide Web, such as web sites, video, audio, etc.

Technically, a web browser is a client program that uses HTTP (hypertext transfer protocol) to make requests of Web servers throughout the internet on behalf of the browser user.

FUNCTION OF WEB BROWSER

The primary purpose of a web browser is to bring information resources to the user, allowing them to view the information, and then access other information.

TYPES OF WEB-BROWSERS:

There are different web browsers that are available and in use today, and they all come with a variety of features. . Some of the available web browsers include:

         Microsoft internet explorer

         Mozilla fire fox

         Google chrome

SEARCH ENGINE

Search Engine refers to a huge database of internet resources such as web pages, newsgroups, programs, images etc. It helps to locate information on World Wide Web.

User can search for any information by passing query in form of keywords or phrase. It then searches for relevant information in its database and return to the user.

Search Engine Components

Generally there are three basic components of a search engine as listed below:

1.      Web Crawler

2.      Database

3.      Search Interfaces

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NETWORK

What is a Computer Network?

A computer network is a system in which multiple computers are connected to each other to share information and resources.

CHARACTERISTICS OF A COMPUTER NETWORK

Share Resources from one computer to another

Create files and store them in one computer, access those files from the other computer(s) connected over the network

Connect a printer, scanner, or a fax machine to one computer within the network and let other computers of the network use the machines available over network.

Following is the list of hardware's required to setup a computer network.

Network Cables

Distributors

Routers

Internal Network Cards

External Network Cards

TYPE OF COMPUTER NETWORK

There are three type of computer network according area coverage and technology used

LAN: Network in small geographical Area (Room, Building or a Campus) is called LAN (Local Area Network)

Technology used wired

MAN: Network in a City is call MAN (Metropolitan Area Network)

Technology used fiber optic or macro wave

WAN: Network spread geographically (Country or across Globe) is called WAN (Wide Area Network)

Technology used satellite

What is Internet?

It is a Global network of computers, (servers or clients) to exchange information.

It is a "network of networks" that includes millions of  private and public, academic, business, and government networks (local or Global), linked by copper wires, wireless connections, and other technologies 

What is Intranet?

Internal company network that uses Internet standards (HTML, HTTP & TCP/IP protocols) & software

Accessed only by authorized persons, especially members or employees of the organization

What is Extranet?

Extranet is an Intranet for outside authorized users using same internet technology.

Inter-organizational information system

Enable outsiders to work together with company’s employees.

Open to selected suppliers, customers & other business partners

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WEBSITE

WEBSITE
Website the collection of electronic web page that store organization information
There are two type of webpage
Static webpage
Dynamic webpage

Static Websites

Static websites are also known as flat or stationary websites. They are loaded on the client’s browser as exactly they are stored on the web server. Such websites contain only static information. User can only read the information but can’t do any modification or interact with the information.

Static websites are created using only HTML. Static websites are only used when the information is no more required to be modified.

Dynamic Websites

Dynamic websites shows different information at different point of time. It is possible to change a portion of a web page without loading the entire web page. It has been made possible using Ajax technology, php.

REQUIREMENT OF WEB SITE
Domain name and register
Web Host
Web/Blog design

TOOLS FOR CREATING WEB SITE
Text Based editor
what you see is what you get
Template Based Editor

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