Computer Architecture: Von Neumann Model
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Questions and Answers

What is the primary goal of the von Neumann architecture design?

  • To increase the size of computer memory
  • To improve the speed of computer processing
  • To design a simple fixed-structure computer that can perform any complex computation without hardware modification (correct)
  • To reduce the cost of computer hardware

    • What is the main advantage of the von Neumann architecture?

  • It reduces the need for input/output devices
  • It allows for modification of instructions in the same way as data (correct)
  • It allows for faster processing of data
  • It uses separate memory units for data and instructions

    • What are the four main components of a computer system according to the von Neumann architecture?

  • Processor, memory, input/output devices, and operating system
  • Processor, memory, bus system, and reliability
  • Processor, memory, input/output devices, and software
  • Processor, memory, input/output devices, and bus system (correct)

    • What is the term for the probability of failure-free software operation for a specified period of time in a specified environment?

    <p>Reliability (C)</p> Signup and view all the answers

    What is the name of the memory unit where data and instructions share the same memory space?

    <p>RAM (Random Access Memory) (A)</p> Signup and view all the answers

    Who proposed the von Neumann architecture in 1945?

    <p>John von Neumann (B)</p> Signup and view all the answers

    What is the primary function of the Fetch Operands step in the instruction cycle?

    <p>To retrieve the required operands from memory or registers (D)</p> Signup and view all the answers

    What is the main issue with the von Neumann architecture?

    <p>The data and instructions are stored on a shared memory and can only be accessed through the data bus (B)</p> Signup and view all the answers

    What is the purpose of the Execute Operation step in the instruction cycle?

    <p>To perform the operation on the fetched operands (C)</p> Signup and view all the answers

    What is the main characteristic of the Harvard Architecture in contrast to the von Neumann Architecture?

    <p>Data and instructions are treated separately (B)</p> Signup and view all the answers

    What is the consequence of the von Neumann bottleneck?

    <p>The CPU is idle when data are transmitted via the data bus (D)</p> Signup and view all the answers

    What is the purpose of the Store Result step in the instruction cycle?

    <p>To write the result of the operation into the destination (A)</p> Signup and view all the answers

    What is the primary function of the control unit in the von Neumann architecture?

    <p>Control and orchestrate CPU operations (A)</p> Signup and view all the answers

    What is stored in the Program Counter (PC) register?

    <p>The memory address of the instruction (C)</p> Signup and view all the answers

    What is the function of the Arithmetic/Logic Unit (ALU) in the von Neumann architecture?

    <p>To perform arithmetic and logic operations (A)</p> Signup and view all the answers

    What is the purpose of the registers in the von Neumann architecture?

    <p>To store data temporarily before processing (A)</p> Signup and view all the answers

    What is the function of the Memory Address Register (MAR)?

    <p>To store the memory address of the instruction (A)</p> Signup and view all the answers

    What is the number of registers in the von Neumann architecture?

    <p>5 (B)</p> Signup and view all the answers

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