Java History Background information about Java and how the background affected it’s development.

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Presentation transcript:

Java History Background information about Java and how the background affected it’s development

Java: History Computers of the past Image © University of Pennsylvania

Java: History (2) The invention of the microprocessor revolutionized computers From the “Intel museum” www.intel.com Image courtesy of James Tam

Java: History (3) It was believed that the logical next step for microprocessors was to have them run intelligent consumer electronics. “Smart homes” “Smart washer-dryers” “Smart vacuums”

Java History (4) Sun Microsystems funded an internal research project “Green” to investigate this opportunity. Result: A programming language called “Oak” Blatant advertisement: James Gosling was a graduate of the U of C Computer Science program

Java History (5) Problem: There was already a programming language called Oak. The “Green” team met at a local coffee shop to come up with another name... Java!

Java: History (6) The concept of intelligent devices didn’t catch on. Project Green and work on the Java language was nearly canceled.

Java: History (7) The popularity of the Internet resulted in Sun’s re-focusing of Java on computers. Prior to the advent of Java, web pages allowed you to download only text and images. Your computer at home running a web browser Server containing a web page Images and text get downloaded User clicks on a link

Java: History (8) Java enabled web browsers allowed for the downloading of programs (Applets). Java is still used in this context today: Facebook (older version) Hotmail (older version) Your computer at home running a web browser Server containing a web page Java applet downloaded User clicks on a link Java version of the Game of Life: http://www.bitstorm.org/gameoflife/ Online checkers: http://www.darkfish.com/checkers/index.html

Why ‘Javac’ & ‘Java’: Consequence Of Java History

Adding Java Code To A Webpage The code can be run through a web browser instead of manually invoked via the command line. These Java programs are ‘applets’ How to create a simple Java applet: http://docs.oracle.com/javase/tutorial/deployment/applet/getStarted.html How to get an applet to run when your web page is accessed http://www.ehow.com/how_7306707_run-java-applet-html.html

References http://www.oracle.com/technetwork/java/javase/overview/javahistory-index-198355.html

After This Section You Should Now Know How Java was developed and the impact of its roots on the language Major players and events in the development of Java