1.3 Operating systems.

ICT IGCSE Theory – Revision Presentation
1.3 Operating systems
Chapter 1: Types and components of computer systems



• Define and describe operating systems which contain a Command Line Interface
(CLI)
• Define and describe operating systems which contain a Graphical User Interface
(GUI)
• Describe the differences, including the benefits and drawbacks, between operating
systems which contain a CLI and those which contain a GUI




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, ICT IGCSE Theory – Revision Presentation
1.3 Operating systems
Chapter 1: Types and components of computer systems



Role of an Operating System

An operating system is a system software that manages the general operation of a
computer system:
Allows users to
Provides security
load, run and
and prevents
store applications.
unauthorised
Also resolve errors
access to a system
occurring
applications
Helps the user
interact with the Role of an Decided what
computer through a operating System should be loaded
user interface. and deleted from
memory

Helping save,
organise, find and Manages input,
delete files output and backing
devices.
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