53512822-42769564-Java - 1 (c) Rajkumar Rajkumar Buyya...

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Unformatted text preview: 1 (c) Rajkumar Rajkumar Buyya School of Computer Science and Software Engineering Monash University Melbourne, Australia Email: [email protected] URL: http://www.dgs.monash.edu.au/~rajkumar Internet and Java Foundations, Programming and Practice 2 (c) Rajkumar Agenda ❃ Internet and its Evolution ❃ Internet Tools ❃ Web and its Programming ❃ Java for Internet Programming ❃ Java Nuts and Bolts ❃ Java Platform ❃ Developing Applets and Applications ❃ Challenges and Future Directions 3 (c) Rajkumar What is the Internet ? • It is a global network of computers that communicate with each other using a variety of protocols and overcoming various communication barriers. • It is like International Telephone System 4 (c) Rajkumar Internet Technology Evolution ❃ Internet is much bigger than what we think ❃ More than 25 years old ❃ More than doubling every year ❃ Technology effect ❃ suddenly every body sees the need for a technology ❃ like the radio or the TV ❃ 10 terabytes flows everyday 5 (c) Rajkumar Internet ❃ Use of internet advertisement/elections/newspapers ❃ information is public ❃ Ubiquitous technology ❃ Network is the computer ❃ Intranets - internal TCP/IP nets ❃ PC accounts for 55% of total IT ❃ Applications tied to platform - API lock- in 6 (c) Rajkumar Internet Evolution File & mail TCP/IP Webpages Netscape On line connects to internet Secure payments Multi media Authoring Java VRML HTML Internet everywhere Internet appliances Price based services Live communities ? ? ? ? ? ? ? 10% of Market 20% of Market Total Market 7 (c) Rajkumar Early Internet • Early Internet supported only email . • File Transfer Protocol development - ftp sites. • Network News was added to the Internet. • Archie - A program to canvass anonymous ftp sites and create a database of what is available • Gopher- A menu-driven interface used to search for information. • Archie and Gopher could answer questions only like ‘what FTP server contains info about “xxxx” ‘ 8 (c) Rajkumar World Wide Web • World Wide Web conceptualized by Tim Berners-Lee at CERN in Switzerland • Concept of Hypertext led to the development of the Hypertext Markup Language (HTML) • Tim Berners-Lee proposed the ‘Browser’ program • Scientists at CERN designed a TCP/IP based protocol to share Hypertext information called HTTP. • WWW officially is described as a” Wide-area hypermedia information retrieval initiative aiming to give universal access to a large universe of documents. 9 (c) Rajkumar HTML ❃ Hypertext -A little Hype and a Little Text....
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This note was uploaded on 12/14/2011 for the course ENPM 603 taught by Professor Kumar during the Winter '09 term at Indian Institute of Technology, Kharagpur.

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53512822-42769564-Java - 1 (c) Rajkumar Rajkumar Buyya...

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