This document provides an introduction to web development. It discusses the internet and how it connects networks globally. The history of the internet began in 1969 for military and academic use. The world wide web launched in 1990 and allows sharing of information between computers. Key components of web development include web servers that store and deliver web pages, web browsers that retrieve pages, and URLs that identify web resources. Text editors are used to write code for websites. Languages like HTML, CSS, and JavaScript are discussed as being important for building modern websites, with GitHub as a tool for collaborating on projects.

1. Web Development

2. Introduction
Brief Introduction of the Internet and the Web
Web Servers
Web Browsers
Universal Resource Locators
Text Editors
Brief discussion on the role of HTML, CSS, JavaScript
and GitHub in Web Development.

3. Internet
 It is the largest network in the world that
connects hundreds of thousands of individual
networks all over the world.
 The popular term for the Internet is the
“information highway”.
 Rather than moving through geographical space,
it moves your ideas and information through
cyberspace – the space of electronic movement of
ideas and information.

4. History of the Internet
 since 1969
 Pentagon & Cold War
 Original Use:
 Military installations
 Universities
 Business firms with defense department contracts
 Initial Goal:
 Design a network that maintains the safe transition of data
between military computers

5. Uses of the internet
 Send e-mail messages.
 Send (upload) or receive (down load) files between computers.
 Participate in discussion groups, such as mailing lists and newsgroups.
 Logistics, Research & Development
 Customer Service & Support Resource
 Presence Triggers Business
 Marketing & selling products / services
 Good Education & Information Tool

6. World Wide Web
 An organization of files designed around a group of services on Internet
 Programmed to handle requests from browser software resided on users’ PCs
 The Web is
o A hypertext information system
o Cross-platform
o Distributed
o Dynamic
o Interactive

7. History of the World Wide Web
 Tim Berners-Lee, CERN (Switzerland)
 First web server and client, 1990
 Established a common language for sharing information on computers
 Lots of previous attempts (Gopher, WAIS, Archie, Xanadu, etc.)
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8. Definition of Web Server
A web server is a computer that runs websites.
The basic objective of the web server is to store, process and deliver web pages to the
users.
This intercommunication is done using Hypertext Transfer Protocol (HTTP).
Apart from HTTP, a web server also supports SMTP (Simple Mail transfer Protocol) and FTP
(File Transfer Protocol) protocol for emailing and for file transfer and storage

9. Definition of Web Browser
Is a software application for accessing the information on the World Wide Web.
It is the function of the web browser to retrieve the information requested by the user
from any website.
Examples:
 Google Chrome
 Internet Explorer
 Mozilla Firefox
 Opera
 Safari

10. URL (Uniform Resource Locator)
Is the Web site address you enter into the address bar of your browser.
An example of a URL is https://www.computerhope.com

11. Text Editors
A text editor is a software program that allows users to input and edit text.
Examples:
Visual Studio Code
Atom
Brackets
Notepad++
TextMate
Vim
Komodo Edit

12. HTML
Hypertext Markup Language
Defines the structure of Web page. HTML consists of a series of elements, which you use to
enclose, or wrap, different parts of the content to make it appear a certain way.

13. CSS
CASCADING STYLE SHEET
Is used for defining the styles for web pages.CSS is generally used with HTML to change the
style of web pages and user interfaces.
 CSS describes how HTML elements are to be displayed on screen, paper, or in other
media
 CSS can control the layout of multiple web pages all at once

14. JavaScript
Is a scripting language that allows us to implement interactive features on web pages.
JavaScript Can Hide HTML Elements
JavaScript Can Show HTML Elements
JavaScript Can Change HTML Content
JavaScript Can Change HTML Attribute Values

15. GITHUB
GitHub is a web-based hosting service for software development projects that use the Git
revision control system.
GitHub offers both paid plans for private repositories, and free accounts for open source
projects.

16. Q and A

17. Thank you