When planning an algorithm, diving straight into code can be overwhelming. That’s where pseudocode comes in — a simple, language-agnostic way to outline your logic… Read More »Pseudocode Explained: The Ultimate Beginner’s Guide to Writing Clear and Logical Algorithms
1. Database Basics 1.1 Key Definitions Term Definition Example Database Organized collection of structured data. A holiday booking system storing customer and holiday details. Table… Read More »Chapter 8 – DataBases
1. Ethical Considerations in Computing Why Ethics Matter: Key Ethical Issues: Issue Example Ethical Solution Privacy Unauthorized data collection by apps. Implement GDPR compliance, user… Read More »Chapter 7: Ethics and Ownership
1. Key Definitions Term Definition Example Data Security Protecting data from unauthorized access, corruption, or theft. Encryption, firewalls, passwords. Data Privacy Controlling who can access… Read More »Chapter 6: Security, Privacy & Data Integrity
1. Operating System (OS) Basics Definition:Software that manages hardware/resources and provides a user interface. Key Functions: Examples: Windows, Linux, macOS. 2. Utility Software Utility Purpose Performance… Read More »Chapter 5: System Software
1. Central Processing Unit (CPU) Architecture Exam Focus: Theory: Practice: 2. Assembly Language & Addressing Modes Exam Focus: Theory: Practice: 3. Bit Manipulation Exam Focus:… Read More »Chapter 4 – Processor Fundamentals
1. Network Types & Topologies Key Concepts: Topologies: Topology Description Advantages Disadvantages Star All devices connect to a central switch/router. Easy to add devices; fault… Read More »Chapter 2: Communications
1. Binary, Denary & Hexadecimal Key Concepts: Conversions: Past Paper Example (2023 Q1c):Question: Convert F0₁₆ to denary.Marking Scheme Answer: Common Errors: 2. Binary Arithmetic Key… Read More »Chapter 1: Information Representation
1. Logic Gates & Circuits Theory: Past Paper Example (2023 Q5a):Question: Draw the circuit for X = NOT (A OR B OR C) OR (B… Read More »Chapter 3: Hardware