3.4 Computer SystemsHigh Exam FrequencyOCR

Operating Systems

Revise Operating Systems in 3.4 Computer Systems for GCSE Computer Science with 15 exam-style questions and 10 flashcards. This is a high-frequency exam topic, so students should expect to explain it clearly under timed conditions.

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The Computer Manager

Introduction 2

Operating System Functions Overview

Diagram 3

Functions of an Operating System

Key Facts 4

Deep Dive: User Interfaces

Deep Dive 5

Deep Dive: Multitasking

Deep Dive 6

Operating System Functions

Diagram 7

Memory Trick

Notes 8

Knowledge Organiser: Operating Systems

Summary 9

Exam Tips - Operating Systems

Exam Tips

Sample Flashcards

What does GUI stand for?

Graphical User Interface

What does CLI stand for?

Command Line Interface

Exam questions for Operating Systems

Which of the following best describes the role of an operating system?

A. A program that allows users to browse the internet
B. Software that manages hardware and software resources and provides services to programs
C. A type of application software used for word processing
D. A programming language used to write other software

1 markfoundation

Explain how an operating system manages memory.

2 marksstandard

exam-style questions

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