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IB DP Computer Science — A1 Computer fundamentals — Operating systems and control systems | SL | A1.3.2
📋 What You Will Learn
- Describe how an OS maintains system integrity while running its background operations
- Name the nine syllabus functions: memory management, file system, device management, scheduling, security, accounting, GUI, virtualization, networking
- Describe the mechanism of each function — what it does and how
- Trace one everyday action (saving a photo) through several functions working together
- Identify which functions matter most for a given device or scenario
🔎 Why This Matters Think of the OS as a city government: a housing office assigns space (memory management), a land registry records ownership (file system), traffic control shares the roads (scheduling), police check identity and access (security), and the tax office records who used what (accounting). No single