Scenario: You have 8GB RAM and want to play a modern game that recommends 12GB.
What happens:
- Step 1: Windows 11 takes 3GB RAM for OS
- Step 2: Game loads and needs 10GB RAM, but only 5GB available
- Step 3: OS pages out some Windows system services to hard drive (creates 4GB free)
- Step 4: Game loads into 9GB RAM + 1GB virtual memory (runs, but stutters)
- Step 5: When game needs that paged-out data, OS swaps it back (causes frame drops)
- Result: Game runs but with lag spikes every few seconds - playable but frustrating
Solution: Upgrade to 16GB RAM. Virtual memory is a backup, not a replacement!
This deep dive covers Real-World Example: Gaming Scenario within Virtual Memory for GCSE Computer Science. Revise Virtual Memory in 3.4 Computer Systems for GCSE Computer Science with 15 exam-style questions and 16 flashcards. This topic appears less often, but it can still be a useful differentiator on mixed-topic papers. It is section 6 of 10 in this topic. Use this deep dive to connect the idea to the wider topic before moving on to questions and flashcards.
Practice questions for Virtual Memory
What is virtual memory?
Explain how virtual memory works when a user opens more programs than RAM can hold.