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The CPU - Coggle Diagram
The CPU
Components
Registers
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Common Registers
- program counter(PC)
- memory address register(MAR)
- memory data register(MDR)
- current instruction register(CIR)
- Accumulator(ACC)
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Cache
Small amount of high speed RAM built directly within the processor. Its used to temporarily store data and instructions that the processor is likely to reuse. This allows for faster processing as it does not have to wait for data to be fetched from RAM
Clock
The clock is used to co-ordinate all the computer's components by sending out a regular electrical pulse.
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Control Unit(CU)
- Fetches, decodes and executes instructions
- Issues control signals to control other components
- Moves data around the system