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Structure and function of the processor
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CPU parts at a glance

CPU parts at a glance

Labelled CPU block diagram with Control Unit, ALU, registers PC MAR MDR CIR ACC, and address, data, and control buses connecting the CPU to main memory

The CPU executes instructions stored in memory. Inside it, the ALU handles calculations and logic, while the Control Unit coordinates the movement of data and the timing of each step.

Structure and function of the processor Lesson

  1. AS Level
  2. /Computer Science
  3. /Structure and function of the processor

Step-by-step lessons on OCR AS Level Computer Science Structure and function of the processor. Each one builds up to exam-style questions.