The CPU

You should be able to…

  • State the purpose of the CPU
  • Draw or explain the Von Neuman architecture (Memory Address Register, Memory Data Register, Program Counter, Accumulator)
  • Describe common CPU components and their function (Arithmetic Logic Unit, Control Unit and Cache)
  • Understand the fetch, decode and execute cycle
  • Understand how common characteristics of CPUs affect their performance (clock speed, cache size, number of cores)

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Answer the questions on this sheet (1.1 Systems Architecture Notes) to create a full set of notes about this topic

Now have a go at the Knowledge Check 1 to check your understanding of the information!


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You need to have notes that cover the following…

  • Clock Speed
  • Number of Cores
  • Cache Size

Now have a go at the Knowledge Check 2 to check your understanding of the information!