The Operating System. without an operating system: the screen would be blank there'd be no response...

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 3 tasks of the operating system:

• Allocate system resources




• Monitor system activities




• Monitor system activities

• File and Disk Management

1) Chip


1) Chip 2) Disk Based


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.

The Operating System. without an operating system: the screen would be blank there'd be no response...

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