Boolean LogicKey Facts
Order of Operations in Logic Circuits
Part of Truth Tables — GCSE Computer Science
This key facts covers Order of Operations in Logic Circuits within Truth Tables for GCSE Computer Science. Revise Truth Tables in Boolean Logic for GCSE Computer Science with 15 exam-style questions and 15 flashcards. This topic appears regularly enough that it should still be part of a steady revision cycle. It is section 9 of 10 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 9 of 10
Practice
15 questions
Recall
15 flashcards
Order of Operations in Logic Circuits
Just like mathematics has BIDMAS/PEMDAS, Boolean logic has an order of operations:
| Priority | Operation | Example |
|---|---|---|
| 1st (highest) | Brackets / Parentheses | Evaluate (A OR B) before anything else |
| 2nd | NOT | NOT(A) is evaluated before AND/OR |
| 3rd | AND | A AND B is evaluated before OR |
| 4th (lowest) | OR | OR is evaluated last |
Example: NOT(A) AND B OR C
- Step 1: Calculate NOT(A)
- Step 2: Calculate NOT(A) AND B
- Step 3: Calculate [NOT(A) AND B] OR C