Operating System Lecture 1: System Components and Functions
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Questions and Answers

What is the main function of the operating system?

  • Simplify the complexity and control usage of application program (correct)
  • Compile computer programs
  • Allocate hardware resources efficiently
  • Manage digital libraries
  • Which component of the computer system is responsible for executing user programs and managing I/O devices?

  • Operating system (correct)
  • Kernel
  • Resource allocator
  • Application program
  • What is the purpose of time sharing in the operating system spectrum?

  • Run multiple programs using interrupts
  • Uses FIFO and timing multiprogramming (correct)
  • Single user, portable, and flexible
  • Allocate software-hardware and manage them efficiently
  • What type of computing system is characterized by single user, portable, and flexible with I/O devices like laptops?

    <p>Personal computing system</p> Signup and view all the answers

    Which type of system includes more than one CPU, providing economical, high throughput, and reliability?

    <p>Parallel system</p> Signup and view all the answers

    What is the main characteristic of a distributed system?

    <p>Shared memory across multiple computers</p> Signup and view all the answers

    What is the main advantage of distributing computation among many processors?

    <p>Computation speed up</p> Signup and view all the answers

    What is the function of the interrupt service routine in an operating system?

    <p>Deals with interrupts</p> Signup and view all the answers

    What does DMA stand for in the context of computer systems?

    <p>Direct Memory Access</p> Signup and view all the answers

    What is the role of the base register in hardware protection?

    <p>To provide the smallest legal physical address</p> Signup and view all the answers

    What is the main objective of CPU scheduling?

    <p>Utilization maximization</p> Signup and view all the answers

    Under which type of scheduling does a process get interrupted and moved to a ready state?

    <p>Pre-emptive scheduling</p> Signup and view all the answers

    What does throughput measure in the context of processes?

    <p>Number of processes completed per time unit</p> Signup and view all the answers

    What is the main issue associated with CPU boundedness in program behavior?

    <p>I/O boundedness</p> Signup and view all the answers

    What is the function of the dispatcher in an operating system?

    <p>Gives control to CPU to select process by OS</p> Signup and view all the answers

    What is the primary role of the limit register in hardware protection?

    <p>Size of the range (privilege only in kernel mode)</p> Signup and view all the answers

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