Including:

• units: arithmetic logic unit (ALU) and control unit (CU)

• registers: program counter (PC), memory address register (MAR), memory data register (MDR), current instruction register (CIR) and accumulator (ACC)

• buses: address bus, data bus and control bus

How instructions and data are fetched from random access memory (RAM) into the CPU, how they are processed using each component and how they are then executed

Storing data and addresses into specific registers

Using buses to transmit data, addresses and signals

Using units to fetch, decode and execute data and instructions