Systems SoftwareKey Facts
Functions of an Operating System
Part of Operating Systems — GCSE Computer Science
This key facts covers Functions of an Operating System within Operating Systems for GCSE Computer Science. Revise Operating Systems in Systems Software for GCSE Computer Science with 15 exam-style questions and 10 flashcards. This topic appears less often, but it can still be a useful differentiator on mixed-topic papers. It is section 3 of 8 in this topic. Use this key facts to connect the idea to the wider topic before moving on to questions and flashcards.
Topic position
Section 3 of 8
Practice
15 questions
Recall
10 flashcards
Functions of an Operating System
| Function | Description | Example |
|---|---|---|
| Memory Management | Allocates RAM to programs; manages virtual memory | Swapping inactive apps to disk when RAM is full |
| Processor Management | Schedules CPU time between processes (multitasking) | Switching between Chrome, Word, Spotify quickly |
| File Management | Organises files in folders; controls read/write access | File Explorer, permissions, file extensions |
| Device Management | Communicates with hardware via device drivers | Installing printer driver to print documents |
| User Interface | Provides way to interact (GUI, CLI) | Windows desktop, terminal/command prompt |
| Security | User accounts, passwords, access control | Login screens, admin permissions |