Introduction of internet

Introduction of internet
World Wide Web(www) evolution and history
Basic features
Web Browsers
Web Servers
Web Standards

1. Programme: BCA Course: Web Designing Fundamental We b Designing Fundamental BCA 302 By Mr. Gulbir Singh Assistant Professor, MMICT&BM, M.M.(Deemed to be University)

2. Contents Introduction of internet World Wide Web(www) evolution and history Basic features Web Browsers Web Servers Web Standards References Programme: BCA Course: Web Designing Fundamental

3. Introduction of Internet The Internet is a global system of interconnected computer networks that use the standard Internet protocol suite (TCP/IP) to serve billions of users worldwide. It is a network of networks that consists of millions of private, public, academic, business, and government networks, of local to global scope, that are linked by a broad array of electronic, wireless technologies. The Internet carries a vast range of information resources and services, such as the interlinked hypertext documents of the World Wide Web (WWW) and the infrastructure to support electronic mail. Programme: BCA Course: Web Designing Fundamental

4. History of Internet The Internet started in the 1960s as a way for government researchers to share information. ARPANET (Advanced Research Projects Agency Network), the network that ultimately evolved into what we now know as the Internet. ARPANET was a great success but membership was limited. January 1, 1983 is considered the official birthday of the Internet. ARPANET and the Defense Data Network officially changed to the TCP/IP standard. Programme: BCA Course: Web Designing Fundamental

5. Application of Internet E-Mail Social Networking Online Communication Online Banking E- Commerce E-learning E-HealthCare Online Shopping E-Governance Programme: BCA Course: Web Designing Fundamental

6. History of WWW Programme: BCA Course: Web Designing Fundamental 1989- Tim Berners-Lee proposed WWW. 1990- World’s first web server was developed. 1990-Worldwideweb first web browser. 1993- WWW was announced as free and open to all. Web 1.0- 1. Most of the pages were static 2. These were only images and hyperlinks. 3. Readers and users were unable to contribute to the site.

7. History of WWW Conti.. Programme: BCA Course: Web Designing Fundamental Web 2.0- 1. Pages were made dynamic. 2. Users or readers are allowed to participate with the website and contribute their views to web. 3. Technologies widely used in web 2.0: - Client Side * JavaScript * AJAX * Flash

8. History of WWW Conti.. Programme: BCA Course: Web Designing Fundamental - Server Side * There are several server side languges like: Perl, PHP, Ruby etc. * AJAX * Flash Web 3.0- - Tim Berbers-Lee described Semantic Web as the most important component of web 3.0. - Now the web able to run on any device.

9. Features of WWW Programme: BCA Course: Web Designing Fundamental HyperText Information System. Cross-Platform. Distributed. Approximately 70 million active sites. Open Standards and Open Source. TCP/IP, HTTP, HTML, CSS. Web Browser: provides a single interface to many services. Dynamic, Interactive, Evolving.

10. Web Browser Programme: BCA Course: Web Designing Fundamental Web browser, or simply "browser," is an application used to access and view websites Common web browsers include Microsoft Internet Explorer, Google Chrome, Mozilla Firefox, and Apple Safari. The primary function of a web browser is to render HTML, the code used to design or "mark up“ webpages .

11. Features of web browser Programme: BCA Course: Web Designing Fundamental Allow the user to open multiple pages at the same time, either in different browser windows or in different tabs of the same window. Back and forward buttons to go back to the previous page visited or forward to the next one. A refresh or reload and a stop button to reload and cancel loading the current page. (In most browsers, the stop button is merged with the reload button.)

12. Features of web browser Conti… Programme: BCA Course: Web Designing Fundamental A home button to return to the user's home page. An address bar to input the URL of a page and display it. A search bar to input terms into a search engine. (In some browsers, the search bar is merged with the address bar.)

13. Web Servers Programme: BCA Course: Web Designing Fundamental Web server is a S/W or H/W where the web content is stored. Basically web server is used to host the web sites but there exists other web servers also such as gaming, storage, FTP, email etc.

14. Web Servers Conti… Programme: BCA Course: Web Designing Fundamental The primary function of a web server is to store, process and deliver web pages to clients. The communication between client and server takes place using the Hypertext Transfer Protocol (HTTP). Pages delivered are most frequently HTML documents, which may include images, style sheets and scripts in addition to the text content. Example of web servers: Apache HTTP Server, Internet Information Services (IIS), Sun Java System Web Server.

15. Web Standard Programme: BCA Course: Web Designing Fundamental Hypertext Transfer Protocol HTTP: Hypertext Transfer Protocol It is a request and response protocol for the client server model. HTTP is a TCP/IP based communication protocol, that is used to deliver data (HTML files, image files, query results, etc.) on the World Wide Web.

16. Web Standard Conti… Programme: BCA Course: Web Designing Fundamental Basic Features HTTP is connectionless T he server and client are aware of each other only during a current request. HTTP is media independent It means, any type of data can be sent by HTTP. HTTP is stateless Due to connectionless nature of the protocol, neither the client nor the browser can retain information between different requests across the web pages.

17. Web Standard Conti… Programme: BCA Course: Web Designing Fundamental Basic Architecture of HTTP

18. Web Standard Conti… Programme: BCA Course: Web Designing Fundamental Searching in web One can search over web using a search engine. A web search engine is a software system designed to search for information on the World Wide Web. The search results are generally presented in a line of results often referred to as search engine results pages. The information may be a mix of web pages, images, and other types of files

19. Web Standard Conti… Programme: BCA Course: Web Designing Fundamental Web Casting Webcasting is the process of video broadcasting live over the internet. This technology operates in real-time and allows for active conversations among and between the webcaster and their viewer. Affordable Effective tool for communication.

20. References Programme: BCA Course: Web Designing Fundamental Honey Cutt , Using the Internet, PHI, 4 th ed., 1998. Kogent Learning Solutions Inc., HTML 5 in Simple Steps, Dreamtech Press, 2012. Thomas A. Powell, The Complete Reference: HTML & XHTML, TMH, 4 th ed., 2006. Douglas E. Comer, Computer Networks and Internets, Addison Wisley , 4 th ed., 2009. Xavier, World Wide Web Design with HTML, TMH,2006 Achyut S Godbole & Atul Kahate , Web Technologies, Tata McGraw-Hill, 2 nd ed., 2012. Brian K Williams & Stacey C. Sawyer, Using Information Technology, TMH, 6 th ed, 2008.