Embedded Systems

1.1.1Fetch-Execute Cycle

1.1.2Common CPU Components & Their Function

1.1.3Von Neumann Architecture

1.1.4Factors Affecting CPU Performance

1.1.6Exam-Style Questions - Von Neumann Architecture

1.1.7Diagnostic Misconceptions - Embedded vs General

1.2.1Types of Memory

1.2.2Flash Memory

1.2.3Properties of Flash Memory

1.2.4Running Out of Memory

1.2.5Virtual Memory

1.2.6Units of Capacity

1.2.7Calculating Capacity Requirements

1.2.8Solid State Storage

1.2.9Properties of Solid State Media

1.2.10Magnetic Storage

1.2.11Properties of Magnetic Media

1.2.12Examples of Magnetic Storage

1.2.13Optical Storage

1.2.14Properties of Optical Media

1.2.15Examples of Optical Storage

1.2.16Types of Optical Disk

1.2.17Number Bases

1.2.18Converting Number Bases

1.2.19Hexadecimal

1.2.20Using Hexadecimal

1.2.21Converting Denary & Hexadecimal

1.2.22Binary Addition

1.2.23Binary Shifts

1.2.24Representing Text

1.2.25ASCII & Unicode

1.2.26Representing Images

1.2.27Converting Binary & Images

1.2.28Representing Sound

1.2.29Data Compression

1.2.30Grade 9 - Storage

1.2.31Exam-Style Questions - Primary Memory

1.2.32Exam-Style Questions - Storage

1.2.33Exam-Style Questions - Data Conversions

1.2.34Diagnostic Misconceptions - RAM vs ROM

1.2.35Diagnostic Misconceptions - Bits, Nibbles & Bytes

1.2.36Diagnostic Misconceptions - Bits Required to Store

1.2.37End of Topic Test - Computer Systems

1.2.38End of Topic Test - Representation

1.3.1Benefit of Networks

1.3.2Types of Networks

1.3.3Network Performance

1.3.4Networks: How Do Packets Get Routed?

1.3.5Client-Server Model

1.3.6Pros & Cons of Client-Server Model

1.3.7Peer-to-Peer Model

1.3.8Pros & Cons of Peer-to-Peer Model

1.3.9Network Hardware

1.3.10Transmission Media

1.3.11What is the Internet?

1.3.12URLs

1.3.13DNS & Web Hosting

1.3.14The Cloud

1.3.15Pros & Cons of the Cloud

1.3.16Star & Mesh Network Topologies

1.3.17WiFi

1.3.18WiFi Frequency & Channels

1.3.19WiFi Encryption

1.3.20IP Addresses

1.3.21MAC Addresses

1.3.22Network Protocols

1.3.23Transmission Protocols

1.3.24Application Protocols

1.3.25Layers

1.3.26Advantages of Layering

1.3.27Exam-Style Questions - Networking Models

1.3.28Exam-Style Questions - Network Protocols

1.3.29Diagnostic Misconceptions - LAN vs WAN

1.4.1Forms of Attack

1.4.2Penetration Testing

1.4.3Malware

1.4.4How Malware Spreads

1.4.5Social Engineering

1.4.6Phishing

1.4.7Cracking Passwords

1.4.8Denial of Service Attacks

1.4.9Data Interception

1.4.10Methods of Data Interception

1.4.11SQL Injection

1.4.12Network Administration

1.4.13Network Forensics

1.4.14Protecting Against Malware

1.4.15Firewalls

1.4.16User Access Levels

1.4.17Passwords

1.4.18Encryption

1.4.19End of Topic Test - Networks

1.5.1System Software

1.5.2Utility Software

1.5.3Operating Systems

1.5.4User Interfaces

1.5.5Memory & Process Management

1.5.6File Management

1.5.7Device Management

1.5.8User Management

1.5.9Encryption Software

1.5.10Defragmentation Software

1.5.11Data Compression Software

1.5.12Backup Software

1.6.1Open Source Software

1.6.2Proprietary Software

1.6.3Licensing Issues

1.6.4Ethical Issues - The Digital Divide

1.6.5Ethical Issues - Net Neutrality

1.6.6Ethical Issues - Working Conditions

1.6.7Ethical Issues - Censorship

1.6.8Exam-Style Questions - Ethical Issues

1.6.9Data Protection Act 1998

1.6.10Computer Misuse Act (1990)

1.6.11Copyright Designs & Patents Act (1988)

1.6.12Creative Commons Licensing

1.6.13Freedom of Information Act (2000)

1.6.14Cultural Issues

1.6.15Environmental Issues

1.6.16Online Activity Tracking & The Internet of Things

1.6.17Stakeholders

1.6.18Other Impacts of Digital Technology on Society

1.6.19End of Topic Test - Software & Issues

1.6.20Diagnostic Misconceptions - Open Source

2.1.1Computational Thinking - Abstraction

2.1.2Computational Thinking - Decomposition

2.1.3Algorithmic Thinking

2.1.4Pseudocode

2.1.5Flowchart Diagrams

2.1.6Interpreting Algorithms

2.1.7Correcting Algorithms

2.1.8Completing Algorithms

2.1.9Search Algorithms

2.1.10Binary Search

2.1.11Linear Search

2.1.12Overview of Sort Algorithms

2.1.13Bubble Sort

2.1.14Merge Sort

2.1.15Insertion Sort

2.1.16Exam-Style Questions - Sorting Algorithms

2.2.1Variable Declaration & Assignment

2.2.2Input & Output

2.2.3Program Flow - Sequence

2.2.4Program Flow - Selection

2.2.5Program Flow - Iteration

2.2.6Arithmetic Operators

2.2.7Relational Operators

2.2.8Boolean Operators

2.2.9Data Types

2.2.10Casting

2.2.11Arrays

2.2.12Strings

2.2.13File Handling

2.2.14Structuring Data - Records

2.2.15Structured Query Language

2.2.16Random Number Generation

2.2.17End of Topic Test - Programming

2.2.18Exam-Style Questions - Translation

2.2.19Diagnostic Misconceptions - Comparison Operators

2.2.20Diagnostic Misconceptions - = & ==

2.2.21Diagnostic Misconceptions - Types of Data

2.2.22Diagnostic Misconceptions - Last Line of Code

2.2.23Diagnostic Misconceptions - Array Index

2.3.1Defensive Design

2.3.2Validation & Sanitisation

2.3.3Authentication & Contingencies

2.3.4Maintainability

2.3.5Purpose of Testing

2.3.6Types of Testing

2.3.7Test Plans

2.3.8Types of Errors

2.3.9End of Topic Test - Programming

2.3.10Exam-Style Questions - Testing

2.4.1Binary Systems

2.4.2Logic Circuits

2.4.3Boolean Logic

2.4.4Boolean Operators

2.4.5Grade 9 - Logic

2.5.1High-Level vs Low-Level Languages

2.5.2Translation - Compliers & Interpreter

2.5.3Translation - Assemblers

2.5.4Integrated Development Environments

2.5.5Exam-Style Questions - Translation