1. Android And Open Source • Why Android grow up so quickly? • Android is Open Source. • What is Source? • What is Open Source? • How does Open Source software grows? • Android really benifited from Open Source?

2. What is Source? source = clearly described idea Automatically translate to a program

3. What is Open Source? • Source of a software should be open to anyone and any way of using. • Came up in 1998 when Netscape released source of its navigator(浏览器). • It is known as firefox nowaday Icon of Netscape Eric S. Raymond One of Open Source Creators Old navigator is loading

4. Program is machine-friendlyProgrammer gets nothing Read Program ^_^ I can understand~ >_< Nothing

5. Programmers read source and get idea Read Source Get Idea

6. Aha,I can make it better! • First version • Someone improve it • Better versionmore user • More improverBetter version Get Idea

7. Android and Open Source • First version(1.0) of android is not good enough • But world-wide programmers try to improve it. • Now, every day android gets benefits from Android Open Source Project. • For detail you can check here

8. The Fact of Open Source • Scientists publish articles and share ideas • Open Source share ideas of how jobs can be done by computable machines. • Open Source is just an reflection of academic tradition.