Computer Architecture and Control Unit Operations Quiz
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Questions and Answers

Which component holds the address of the next instruction to be fetched?

  • Main memory
  • Program Counter (PC) (correct)
  • ALU registers
  • Instruction Register (IR)

What type of instruction facilitates repetitive operations by changing the sequence of execution?

  • Instruction classification
  • Conditional branch
  • Unconditional branch (correct)
  • Address modify

What cycle involves data processing, alteration of sequence of operations, and a combination of different types of operations?

  • Execute Cycle (correct)
  • Fetch Cycle
  • Interrupt Cycle
  • Instruction Cycle Diagram

Which operation permits addresses to be computed in the ALU and then inserted into instructions stored in memory?

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

What is the purpose of an interrupt in a processor?

<p>To suspend execution of the current program and process the interrupt (D)</p> Signup and view all the answers

Which type of interrupt is generated by an internal processor timer and used in pre-emptive multi-tasking?

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

In which part of a typical microprocessor is cache memory usually found?

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

What does a microcontroller resemble in terms of a computing device?

<p>A microcomputer (D)</p> Signup and view all the answers

How do microcontrollers differ from microprocessors in terms of circuit complexity?

<p>Microprocessors have more complex circuits due to external connections (A)</p> Signup and view all the answers

What is the main function of a microcontroller?

<p>To process data and act as a controlling device in embedded systems (D)</p> Signup and view all the answers

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