This topic covers the von Neumann model and the internal structure of the processor. You will study the arithmetic logic unit, control unit and the registers — program counter, memory address register, memory data register, current instruction register, accumulator, index register and status register — together with the address, data and control buses. The fetch-decode-execute cycle is traced in detail using register transfer notation. Interrupts, factors affecting performance and common ports such as USB and HDMI are also covered.
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