1. The Operating System

2. without an operating system: the screen would be blank there'd be no response when you tap the keys disk programmes wouldn't load the printer wouldn't print In fact, nothing would work

3. The Operating System The 3 tasks of the operating system: Allocate system resources

4. The Operating System The 3 tasks of the operating system: Allocate system resources Monitor system activities

5. The Operating System The 3 tasks of the operating system: Allocate system resources Monitor system activities File and Disk Management

6. The Operating System The 3 tasks of the operating system: Allocate system resources Monitor system activities File and Disk Management

7. 1) Chip The Operating System

8. 1) Chip2) Disk Based The Operating System 2) Disk Based

9. Commands are burnt onto a chip and can not be modified or changed. Used for controlling washing machines, microwaves and games machines. Chip Operating System

10. Performs basic tasks recognises input from the keyboardinput keyboard sends output to the display screenoutputdisplay screen keeps track of files and directoriesfiles directories controls peripheral devicesperipheral devices Disk Operating System

11. Two Types 1) Command Interpreter 2) GUI (Graphical User Interface)

12. 1) Command Interpreter Difficult to use. Commands have to be typed, Eg copy a:*.* Syntax is extremely important. Being replaced by GUI operating systems. MS-DOS LINUX UNIX

13. 2) GUI No need to learn complex commands Easy to move data from one place to another Visually interesting Getting better and better with each new generation MS-Windows OS2-Warp LINUX

14. 2) GUI PC Compatibles MS-Windows

15. 2) GUI Apple Macintosh -DOS

16. 2) GUI Linux -Linux Enlightenment

17. Bibliography This slide show presentation was created by Patrick Harlow of Taita College.