AQA 4.7.3 Processor & Components Notes

Comprehensive notes on topic 4.7.3 Structure and Role of the Processor and its
Components from the AQA. Includes notes on:

• The Processor and its Components
  - Arithmetic logic unit (ALU)
  - Control unit
  - Registers
  - Clock
• The Fetch-Execute Cycle
  - Interrupts
• The processor instruction set
  - Addressing modes
• Machine-code/assembly language operations
  - Logical Shift
• Factors affecting processor performance
  - Number of cores
  - Cache memory
  - Clock speed
  - Word length
  - Address bus width
  - Data bus width