Computer Organization: Control Unit Operation
18 Questions
0 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the primary function of the control unit in a processor?

  • To generate control signals for micro-operations (correct)
  • To perform arithmetic logic unit (ALU) operations
  • To execute micro-operations directly
  • To manage the internal bus for data transfer

    • What is the purpose of decomposing the functioning of the processor into elementary operations?

  • To increase the processing speed
  • To break down complex operations into manageable micro-operations (correct)
  • To reduce the number of transistors required
  • To simplify the processor design

    • What is the term for the fundamental operations that make up an instruction cycle?

  • Execution sequences
  • Macro-operations
  • Instruction cycles
  • Micro-operations (correct)

    • What are the two basic functions of the control unit?

    <p>Sequencing and execution</p> Signup and view all the answers

    What is the purpose of the instruction cycle?

    <p>To subdivide the instruction into smaller tasks</p> Signup and view all the answers

    What is an example of a micro-operation?

    <p>Transferring data between registers and external bus</p> Signup and view all the answers

    What is the primary function of the Control Unit in a computer system?

    <p>To transfer data to and from registers and operate the ALU</p> Signup and view all the answers

    What is the Hard-wired Implementation of the Control Unit?

    <p>A combinatorial circuit that generates output control signals</p> Signup and view all the answers

    What is the process of translating machine language instructions into lower-level control unit instructions called?

    <p>Microprogramming</p> Signup and view all the answers

    What is the purpose of the MAR in the fetch cycle?

    <p>To provide the address of the next instruction to be fetched</p> Signup and view all the answers

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

    <p>To specify the address for read or write operations</p> Signup and view all the answers

    What happens to the PC during the fetch cycle?

    <p>It is incremented by the instruction length</p> Signup and view all the answers

    How many registers are involved in the Fetch Cycle?

    <p>4</p> Signup and view all the answers

    What is the role of the MBR in the fetch cycle?

    <p>To temporarily hold the data from memory</p> Signup and view all the answers

    What is the purpose of the control unit issuing a READ command in the fetch cycle?

    <p>To read data from memory</p> Signup and view all the answers

    What occurs at the beginning of each instruction in the Fetch Cycle?

    <p>Fetch Cycle</p> Signup and view all the answers

    What happens to the contents of the MBR after the fetch cycle?

    <p>They are moved to the IR</p> Signup and view all the answers

    What is the sequence of events in the fetch cycle?

    <p>PC -&gt; MAR -&gt; MBR -&gt; IR</p> Signup and view all the answers

    More Like This

    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser