Skip to content
Examo
HomeRevision notesComputer Science

Computer Science revision notes

28 of 28 topics written so far.

Chapter 1

Data Representation

  • Number Systems
  • Text, Sound and Images
  • Data Storage and Compression

Chapter 2

Data Transmission

  • Types and Methods of Data Transmission
  • Error Detection
  • Encryption

Chapter 3

Hardware

  • Computer Architecture
  • Input and Output Devices
  • Memory and Storage

Chapter 4

Software

  • Types of Software
  • Programming Languages and Translators

Chapter 5

Internet and Its Uses

  • Internet and Networking
  • World Wide Web
  • Digital Currency
  • Cyber Security

Chapter 6

Automated and Emerging Technologies

  • Automated Systems
  • Robotics
  • Artificial Intelligence

Chapter 7

Algorithm Design and Problem Solving

  • Problem Solving and Design
  • Pseudocode and Flowcharts
  • Sorting and Searching Algorithms

Chapter 8

Programming

  • Programming Concepts
  • Arrays
  • File Handling
  • Procedures and Functions

Chapter 9

Databases

  • Database Concepts

Chapter 10

Boolean Logic

  • Logic Gates and Circuits
  • Boolean Logic and Expressions
Examo

Free IGCSE revision, built around the mark scheme.

Study tools

  • Revision Notes
  • Exam Questions
  • Past Papers
  • Flashcards
  • Weak Questions
  • Study Planner

Subjects

  • Chemistry
  • Physics
  • Biology
  • Computer Science
  • Economics
  • Mathematics
  • Mathematics (Core)
  • All past papers

Dashboard

  • Overview

Company

  • About us
  • Periodic table

© 2026 Examo. All rights reserved.

Examo is not affiliated with, endorsed by, or connected to Pearson Edexcel or Cambridge International Education. Specification codes are used for identification only.

  • Home
  • Practice
  • Flashcards
  • Bookmarks