Components of a Computer

All concepts of this course are covered at GCSE, but they are expanded on in the A-Level syllabus. Students look in-depth at a range of different concepts including the Central Processing Unit, Control Unit, Buses, Arithmetic Logic Unit and Registers.

Created By

Dawn H




Components of a Computer


Course Overview

This course is designed to aid the understanding of the internal workings of a computer system. Students will look at the individual components that make up a computer, looking in-depth at the Central Processing Unit, Control Unit, Buses, Arithmetic Logic Unit and Registers and how each of these parts is used in the Fetch Execute Cycle and how each of the different architectures (Vonn Neumann Architecture and Harvard Architecture) moves information around the computer system in an efficient and effective way. These concepts would have been covered in GCSE Computer Science, but they are expanded within the A-Level course.

Course Content


8 HOURS Total Length

Lesson 1

Operating System

60 minutes

Lesson 2

Memory Management

60 minutes

Lesson 3

Fetch Execute

60 minutes

Lesson 4


60 minutes

Lesson 5

Distributed, Embedded, Multi-Tasking, Multi-User and Real Time Operating Systems

60 minutes

Lesson 6


60 minutes

Lesson 7

Device Drivers

60 minutes

Lesson 8

Virtual Machines

60 minutes

Key Skills

Critical Thinking

Problem Solving

Computer Architecture


Dawn H

Computing Expert

With 25 years of experience and a PGCE, Dawn teaches all Computer Science and ICT topics, including programming and coding.