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1. The von Neumann Computer Model

  • Von Neumann computer systems contain three main building blocks:

    • the central processing unit (CPU),

    • memory,

    • and input/output devices (I/O).

  • These three components are connected together using the system bus.

  • The most prominent items within the CPU are the registers: they can be manipulated directly by a computer program.

  • The following block diagram shows major relationship between CPU components:

      Simplified view of computer system

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