GCSE Computer Science Revision

CPU Architecture

CPU Performance

Embedded Systems

Memory & Storage

Data Representation

Networks

System Security

Systems Software

Extended Discussion

Hardware and Software

Primary Storage

Secondary Storage

Data Units and Capacity

Storage Devices

Types of storage and characteristics

RAM, ROM, and their uses

RAM and ROM

Number Bases

Characters

Images

Sound

Compression

Binary Arithmetic

Character Encoding

Binary calculations and shifts

Binary numbers

Text representation (ASCII)

Character sets

Binary and Hexadecimal Numbers

Binary Representation

Units of data

Binary and hexadecimal conversions

Network Types

Network Performance Factors

Network Models

Network Hardware

Internet and Network Services

Network Topologies

Wired and Wireless Connections

Addressing and Standards

Network Protocols

Protocol Layers

Cloud storage

Protocols and Layers

LAN vs WAN

Wired vs wireless connections

Internet connectivity and IP addressing

IP and MAC addressing

Threats and Attacks

Preventing Vulnerabilities

Operating Systems

Utility Software

Operating system functions

Open source and proprietary software

Impacts of Digital Technology

Legislation

Software Licensing

Environmental and ethical issues

Computational Thinking

Algorithm Design and Representation

Searching Algorithms

Sorting Algorithms

Flowcharts

Highest Score Calculation

Core Programming Concepts

Operators

Control Flow

Data Types

Additional Programming Techniques

Variables and outputs

Arrays and loops

Validation and loops

Defensive Design

Testing and Refinement

SQL and database management

Testing and validation

Logic Gates

Truth Tables

Logic Diagrams

Programming Language Levels

Translators

Integrated Development Environments

SQL and database handling

Characteristics and Examples

Characteristics and Uses

Characteristics and memory usage

Advantages and Disadvantages

Technological Advancements

The purpose of the CPU and components of the CPU

Threats and Prevention

Technology in Society

Technology and the environment

Ethical and environmental issues

WAN and cloud advantages/disadvantages

Programming constructs

Error types

String manipulation

High-level and low-level languages

Robust and secure programming

Subprograms and algorithms

Testing and evaluation

Errors

Maintainability and functions

Subprograms (functions and procedures)

Testing and debugging

Iteration

File handling

Input Validation and Testing

Pseudocode

Abstraction and decomposition

Abstraction, decomposition, and algorithmic thinking

CPU and Performance

CPU and fetch-execute cycle

Boolean logic

Logic circuits

SQL and validation

SQL Statements

Text file manipulation

Procedures for File Storage

Test plans

Environmental impact of technology

Impacts of Technology

High-level and Low-level Programming Languages

Program Testing

Impact of technology decisions

Data protection laws

Optical vs solid-state storage

High-level vs low-level languages