Q4. Explain how cache memory improves CPU performance [4 marks]
Student answer
Cache stores frequently used data close to the CPU so it can be accessed faster than from RAM when there is a cache hit.
AI marking · 3/4 marks awarded
- ✅ Cache stores frequently used data
- ✅ Reduces CPU waiting time
- ✅ Cache hit = faster access
- ❌ Missing: reduced RAM access time
Projected Grade 7 🎯