Post on 26-Dec-2015
The Operating System
The Operating System
• 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
The Operating System
The 3 tasks of the operating system:
• Allocate system resources
The Operating System
The 3 tasks of the operating system:
• Allocate system resources
• Monitor system activities
The Operating System
The 3 tasks of the operating system:
• Allocate system resources
• Monitor system activities
• File and Disk Management
The Operating System
The 3 tasks of the operating system:
• Allocate system resources
• Monitor system activities
• File and Disk Management
1) Chip
The Operating System
1) Chip 2) Disk Based
The Operating System
2) Disk Based
• 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
Performs basic tasks
• recognises input from the keyboard
• sends output to the display screen
• keeps track of files and directories
• controls peripheral devices
Disk Operating System
Disk Operating SystemTwo Types1) Command Interpreter 2) GUI (Graphical User Interface)
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-DOSLINUX UNIX
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-WindowsOS2-WarpLINUX
2) GUI
PC Compatibles MS-Windows
2) GUI Apple Macintosh -DOS
2) GUI
Linux -Linux Enlightenment
BibliographyThis slide show presentation was created by Patrick Harlow of Taita College.