Computer Science GCSE
control unit
What control unit means in Computer Science GCSE, as defined for Pearson Edexcel.
Definition of control unit
Check what you remember
Read the wording for your board, then hide it and explain control unit in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: Pearson Edexcel
Decodes instructions and directs the flow of data and control signals within the CPU.
Topics that use control unit
- Hardware (Pearson Edexcel GCSE)
Related terms
- Dedicated single function
- Firmware in ROM or flash memory
- magnetic storage method
- optical storage method
- role of secondary storage
- clock
- Embedded system
- RAM
Using control unit 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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