SS3 NOTE: Introduction to World Wide Web (WWW)

Introduction To World Wide Web(WWW)

World Wide Web: also known as www or w3 commonly known as the web is a system of interlinked hypertext document accessed via the internet with a web browser, one can view web  pages that may contain text, images, videos and other multimedia and navigate between them via hypertext

  Breif history of world wide web

Using concepts from earlier hypertext system, English engineer and computer scientist, Sir Tim Berner's - lee, now the director of www consortium, wrote a proposal in March 1989 for what would eventually become the WWW. At CERN in Geneva Switzerland Berner - lee and Belgian computer scientist Robert Coillian proposed in 1990 to use "Hypertext to link and access information of various kinds as a web of nodes in which the user can browse at will and publicly introduced the project in December.

The World Wide Web was developed to be a pool of human knowledge and human culture which would allow collaboration in remote sites to share their ideas and all aspects of a common projects.

Basic terminologies of internet to be considered are

- WWW: it refers to all the websites, resources and uses in the internet that are using HTTP (hyper Text Transfer Protocol). It is also a universe of network accessible information, an embodiment of human knowledge. The document are formatted in a mark up language called HTML(Hyper text Mark up language )that supports link to other documents as well as graphic , audio and video files .The world wide web is a global set of documents , image and other resources logically interrelated. By hyperlink and referenced with uniform resources identifiers. [URIs] Url allows providers to symbolically identify services and clients to locate and address web servers that store documents and provide resources and access them using the hypertext transfer protocol [HTTP] The primary carrier protocol of the web.

-Web browser: is a software application that enables computer users to locate and access web pages. Browser transfer the basic [HTML] code that allows a user to see images, text, video, and listen to audio on websites and connects to other web pages though hyperlinks. Examples of web browsers: Mozilla ,Firefox, Netscape, Navigator, Microsoft internet explorer, Apple's safari, google chrome and so on.

-Website: it's a collection of a related webpages containing imagee, videos or other digital assets. A website is hosted on at least one web server or a private local area network through an internet adress also called URL.

Benefits of a website

1. Cheaper and flexible advertising

2. Market expansion

3. Promotes e-commerce

4. Support e-learning

5. Increase in sales and revenue earning

6. Offer convenience

7. Improve credibility

8. Growth opportunity

-Webpage: is a website html document that is displayed by a Web browser.

Homepage: it's refers to the initial or main webpage of a website it's the webpage that automatically load when the website is invoked by the web browser.

-Protocols: In computing, a protocol is a set of rules that governs the communication between computers in a network. A protocol is a convention or standard that controls or enables the connection, communication and data transfer between computers in a network.

There are many protocols used in web technology. They are:

HTTP: means Hyper Text Transfer protocol: It is a networking protocol that governs exchange, transfer and distribute html documents in the WWW.

HTML: Hyper Text Markup Language: It is the predominant markup languages for web pages. It is the basic building block of web pages.

SMPT: Simple Mail Transfer Protocol: It is an internet standard to electronic mail (e-mail) transmission across the internet protocol (I P) network.

 Uses of WWW

i. Enable access to information from anywhere in the world.

ii. Enables sharing of ideas, knowledge and skill across the world.

iii. Enables social networking, collaborations and making of friends across the world.

iv. Enables e-learning that is highly beneficial to educational systems.

v. It is the bedrock of e-commerce which is an effective trading system.

vi. Enables tele and video conferencing across the globe.

vii. Empowering radio and television broadcasting.

ix. Encouraging view way of working from home.

     Navigating through a website

Creating a good website navigation is the important task a web designer has to accomplish in the web design process website navigation is the pathway people take to navigate through the site. It must be well constructed, easy to use.

         purpose of navigation

1. To present readers with the most  user-friendly path through the classification so that they find the content they want quickly.

2. Ensures that readers always know where they are bin the site.

3. Allows readers to move quickly and logically throw the website.

4. Guides readers the proper context of the document they are reading.

5. Highlight for the reader part of the classification that the organization wants to promote.

Softwares for web development

1. Microsoft front page: it's full name is Microsoft office front page. It is a W Y S I W Y G (what your see is what you get) HTML editor and website administration tool from Microsoft.

2. Macromedia tools: the common ones are dream weaver, flash, fireworks, free hand.

3. Adobe tools: These are adobe dream weaver, fireworks and flash. Other softwares for web development include: studio, coffee cup, notepad and so on.

Assignment

List (10) ten e-commerce site you know.