Computer Science GCSE
ALU operations
What ALU operations means in Computer Science GCSE, as defined for OCR.
Definition of ALU operations
Check what you remember
Read the wording for your board, then hide it and explain ALU operations in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: OCR
Performs arithmetic such as addition and subtraction and logical operations such as AND, OR and comparisons.
Topics that use ALU operations
- Architecture of the CPU (OCR GCSE)
Related terms
- CPU purpose
- Execute stage
- Fetch stage
- MAR (Memory Address Register)
- Program Counter
- Von Neumann architecture
- Cache performance
- Control unit coordination
Using ALU operations in the exam
Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.
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