OCR J277/01 – 1.1 System Architecture

1.1 System Architecture - Overview / Checklist
1.1.1 Architecture of the CPU
The purpose of the CPU:

    The Fetch – Decode – Execute Cycle

Common CPU components and their function:

    ALU (Arithmetic Logic Unit)
    CU (Control Unit)
    Cache
    Registers

Von Neumann architecture:

    MAR (Memory Address Register)
    MDR (Memory Data Register)
    Program Counter
    Accumulator
1.1.2 CPU performance
How common characteristics of CPUs affect their performance:

    Clock speed
    Cache size
    Number of cores
1.1.3 Embedded systems
The purpose and characteristics of embedded systems
Examples of embedded systems

Recommended Resources

1.1.2 CPU performance
1.1.3 Embedded systems

Further Reading…

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