Friday, July 9, 2010

Java 1

Java is a platform independence programming language

Platform: a combination of hardware and software

Programming language:
1. work on platform(ex:computer,cell phone,car,handheld organizers,hom theater system,PDA)

2. tell a computer to perform a series of tasks in a certain order
Such as
1. receive/accept info
2. move info
3. store info
4. process info
5. display info(these five things are a computer's capabilities.)

Processor form CPU - Central processing unit
(ex:Intel,AMD,Motorola):
1. making decisions
2. performing mathematical operations
3. routing info through computers

Opreating system - a specific program which tells a computer how to
(ex:windows-Microsoft/Macintash-Apple OS/Unix-Bell Labs/Linux-Linus Torvalds)
1. boot/bootstrap
2. communicating with input/output devices
3. store/retrive info on magnetic disks
4. communicating with other computers over a network
5. provide user interface for people to interact with the computer

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