OCR H446 · Component 01 · Computer systems
1.4.3 Boolean algebra
Logic gates, truth tables, Boolean expressions, Karnaugh maps, half and full adders, D-type flip-flops, and Boolean simplification laws.
What to revise
Practise boolean algebra.
Start with these questions from the boolean algebra topic pack. In the workspace, explain each idea from memory, compare your reasoning with the feedback, then revisit the concepts that need practice.
Use the pack alongside your OCR H446 computer systems revision. Your self-reported confidence helps plan the next review; it is not an exam mark or predicted grade.
- A cabinet unlocks when override O is true, or when both badge B and PIN P are valid. Write a Boolean expression for unlock U.Write
- Simplify (A AND B) OR (A AND NOT B), naming the main laws.Simplify
- What does an AND gate output?Logic Gates
- What does an OR gate output?Logic Gates
- What does a NOT gate do?Logic Gates
- How does XOR differ from OR?Logic Gates
RecallStride is independently produced and is not endorsed by OCR. OCR is a registered trademark of OCR. Topic content is published by its owner and has not yet had an independent academic review.