eBook
Topic 6 - The operating system
The “Role of the Operating System” topic covers the OS’s role in managing memory, peripherals, and hardware interfaces. It outlines OS resource management techniques like scheduling, policies, multitasking,...
Teacher Resources (new)
A4.4 Ethical considerations
This subtopic explores key ethical issues in machine learning, including accountability, algorithmic fairness, bias, consent, privacy, security, societal impact, and transparency. It emphasises continually...
Teacher Resources (new)
A4.3 Machine learning approaches (HL only)
This subtopic covers predicting continuous outcomes (linear regression) and discrete (supervised classification: K-NN, decision trees, F1 score, tuning). It includes unsupervised clustering & association...
Teacher Resources (new)
A4.2 Data preprocessing (HL only)
This subtopic covers the significance of data cleaning, emphasising its impact on model performance through techniques like handling outliers, duplicates, and missing data, plus normalisation and standardisation....
Teacher Resources (new)
A4.1 Machine learning fundamentals
This subtopic covers the types of machine learning (Deep, Reinforcement, Supervised, Transfer, Unsupervised Learning), their real-world applications (e.g., medical imaging, robotics, sentiment analysis),...
eBook
Case Study 2026: Problems to be Addressed
This section details the foundational problems at MedTechPro Hospital (MTPH). It covers the hospital’s heavy reliance on EHRs, IoT devices, and internal communications, as well as the 7-phase PTES framework...
Activities
A 4.1.1 Worksheet
Name: ________________________________ Part 1: Differentiating Concepts (6 marks) Part 2: Scenario Analysis (9 marks) Identify the primary machine learning approach you would propose for each complex...
eBook
Topic 7 - Distributed Systems
The “Distributed Systems” topic involves comparing a centrally controlled system with a distributed system and outlining the role of autonomous agents within a larger system. The focus is on understanding...
eBook
Topic 7 - Centralized control systems
“Centralized Control Systems” discusses a variety of control systems like automatic doors, heating systems, and GPS. It outlines the uses of microprocessors and sensor input in these systems. It evaluates...
Activities
A 3.3.6 Worksheet Answers
1. Scenario: A bank customer attempts to withdraw £50 from their account, but the system crashes midway through the transaction. When the system restarts, the customer's balance is the same as it was...