Microprocessor Instruction Set and Buses
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Questions and Answers

Which type of bus is responsible for transmitting data, address, or control information to various elements in a microprocessor?

  • Data bus
  • Instruction bus
  • Control bus (correct)
  • Address bus

    • What does IPC (Instructions Per Cycle) measure in a CPU?

  • Number of clock cycles per instruction
  • Clock speed
  • Number of instructions executed in a single clock cycle (correct)
  • Clock rate

    • What is the purpose of the instruction set in a microprocessor?

  • Interface between hardware and software (correct)
  • Manages word length
  • Determines clock speed
  • Controls the bus operations

    • How is clock speed expressed for a processor?

    <p>Clock rate</p> Signup and view all the answers

    What does bandwidth refer to in the context of a microprocessor?

    <p>Number of bits processed in a single instruction</p> Signup and view all the answers

    Which sequence does a microprocessor follow to execute an instruction?

    <p>Fetch, Decode, Execute</p> Signup and view all the answers

    What does word length indicate in a processor?

    <p>Number of bits the processor can process at a time</p> Signup and view all the answers

    What type of data formats are supported by a microprocessor?

    <p>Signed and Unsigned numbers</p> Signup and view all the answers

    What characterizes the functions of the data bus in a microprocessor?

    <p>Transferring data between components</p> Signup and view all the answers

    What is the maximum number of bytes that can be addressed by the microprocessor in this sample system?

    <p>256 bytes</p> Signup and view all the answers

    When the RD line changes state in the microprocessor, what action does the ROM chip take?

    <p>Places a byte on the data bus</p> Signup and view all the answers

    What happens to the information stored in RAM when the power goes off?

    <p>It is lost</p> Signup and view all the answers

    What is the specific function of the address bus in a microprocessor?

    <p>Selects the type of memory to access</p> Signup and view all the answers

    Why is RAM necessary in a computer system despite its volatility?

    <p>To provide quick read/write access</p> Signup and view all the answers

    Which component in a microprocessor is responsible for holding a permanent collection of pre-set bytes?

    <p>ROM chip</p> Signup and view all the answers

    What does BIOS stand for in a PC context?

    <p>Basic Input/Output System</p> Signup and view all the answers

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