Operating System

Learning Objectives

3

4.1 Types of software and interrupts
4.1.1 System software and application software

Craig'n'Dave

15

4.1 Types of software and interrupts
4.1.2 Operating systems
Watch the video for Operating systems
https://www.youtube.com/watch?v=4HyZd3X3d5c

Craig'n'Dave

23

4.1 Types of software and interrupts
4.1.2 Operating systems
To enable computer systems to function correctly and allow users to communicate with computer systems, software known as an
operating system needs to be installed. An operating system provides both the environment in which applications can be run and a
useable interface between humans and computer.
An operating system also disguises the complexity of computer software and hardware. Common examples of operating systems include:
Microsoft Windows, Apple Mac OS, Google Android and Apple IOS (the latter two being used primarily on tablets and smartphones).
Most computers store the operating system on a hard disk drive (HDD) or solid state drive (SSD) since they tend to be very large programs.
Mobile phones and tablets store the operating system on a solid state device since they are too small to accommodate an HDD.
Figure 4.7 summarises some of the functions in a typical operating system.

By: www.hoddereducation.com/cambridge-igcse-computerscience

24

4.1 Types of software and interrupts
4.1.2 Operating systems
The purpose and functions of operating systems

Craig'n'Dave

37

4.1 Types of software and interrupts
4.1.2 Operating systems

Craig'n'Dave

25

4.1 Types of software and interrupts
4.1.2 Operating systems
The purpose and functions of operating systems

Craig'n'Dave

39

4.1 Types of software and interrupts
4.1.2 Operating systems
The purpose and functions of operating systems

Craig'n'Dave

40

4.1 Types of software and interrupts
4.1.2 Operating systems
The purpose and functions of operating systems

Craig'n'Dave

38

4.1 Types of software and interrupts
4.1.2 Operating systems
The purpose and functions of operating systems
Differences between GUI and CLI interfaces

By: www.hoddereducation.com/cambridge-igcse-computersci

41

4.1 Types of software and interrupts
4.1.2 Operating systems
handling interrupts

Craig'n'Dave

26

4.1 Types of software and interrupts
4.1.2 Operating systems
managing multitasking

Craig'n'Dave

27

4.1 Types of software and interrupts
4.1.2 Operating systems
managing peripherals and drivers

Craig'n'Dave

28

4.1 Types of software and interrupts
4.1.2 Operating systems

Craig'n'Dave

29

4.1 Types of software and interrupts
4.1.2 Operating systems
managing user accounts and security

Craig'n'Dave

31

4.1 Types of software and interrupts
4.1.2 Operating systems
managing files

Craig'n'Dave

32

4.1 Types of software and interrupts
4.1.2 Operating systems
managing files

Craig'n'Dave

33

4.1 Types of software and interrupts
4.1.2 Operating systems

Craig'n'Dave

34

4.1 Types of software and interrupts
4.1.2 Operating systems
Watch the video for the purpose and functions of operating systems
https://www.youtube.com/watch?v=cgiHpRPqCpo

Craig'n'Dave

35

4.1 Types of software and interrupts
4.1.2 Operating systems
The purpose and functions of operating systems

Craig'n'Dave

36

4.1 Types of software and interrupts
4.1.2 Operating systems
The purpose and functions of operating systems

Craig'n'Dave

42

Learning Objectives

52