Operating Systems and Resource Utilization

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Questions and Answers

What is the main advantage of multiprocessor systems known as parallel systems?

  • Increased throughput (correct)
  • Limited scalability
  • High maintenance costs
  • Decreased reliability

Which type of multiprocessor system assigns each processor a specific task?

  • Asymmetric Multiprocessing (correct)
  • Multi-Core Design
  • Symmetric Multiprocessing
  • Single-Core Processing

What do special-purpose processors run?

  • A wide variety of instructions
  • No instructions
  • Only high-level instructions
  • A limited number of instructions (correct)

In Symmetric Multiprocessing, what relationship exists between processors?

<p>Peers with no boss-worker relationship (A)</p> Signup and view all the answers

What is the primary benefit of including multiple computing cores on a single chip?

<p>Improved efficiency due to faster on-chip communication (D)</p> Signup and view all the answers

What is the main function of a disk controller microprocessor in a system?

<p>Implements its own disk queue and scheduling algorithm (D)</p> Signup and view all the answers

What is one of the main goals of an operating system?

<p>Manage resources such as Memory Processor(s) I/O Devices (D)</p> Signup and view all the answers

Why is knowledge of how operating systems work crucial for most computer practitioners?

<p>To ensure proper, efficient, effective, and secure programming (D)</p> Signup and view all the answers

What does the hardware in a computer system provide?

<p>Basic computing resources (B)</p> Signup and view all the answers

From the users' point of view, what are some of their expectations from an operating system?

<p>Convenience, ease of use, and good performance (D)</p> Signup and view all the answers

What is the role of application programs in a computer system structure?

<p>Define the ways in which system resources are used to solve computing problems (C)</p> Signup and view all the answers

Why is it important for shared computers like mainframes to keep all users happy?

<p>Users will switch to other systems if unhappy (C)</p> Signup and view all the answers

What is the main purpose of an Operating System?

<p>To act as an intermediary between the user and the computer hardware (D)</p> Signup and view all the answers

What would be the consequence if an Operating System was not developed?

<p>Hardware knowledge would become mandatory for computer programming (C)</p> Signup and view all the answers

Which resource contributed slides and diagrams to this course from the 10th edition in 2018?

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

What is NOT a function of an Operating System?

<p>Directly accessing computer hardware (D)</p> Signup and view all the answers

Why is it essential for an Operating System to exist?

<p>To allow easy development and execution of programs without hardware knowledge (B)</p> Signup and view all the answers

Which textbook provided some conceptual text for this course?

<p>Operating Systems: Three Easy Pieces by Remzi Arpaci-Dusseau and Andrea Arpaci Dusseau (C)</p> Signup and view all the answers

What is the role of a device controller in a computer system?

<p>To manage I/O for a specific type of device (B)</p> Signup and view all the answers

What is the function of a device driver in relation to device controllers?

<p>It provides a common interface between the controller and the kernel (B)</p> Signup and view all the answers

How does Small Computer-Systems Interface (SCSI) contribute to a computer system?

<p>It allows connection of more devices (A)</p> Signup and view all the answers

What happens after an I/O operation starts and why is it significant?

<p>Control immediately returns to the user program without waiting for I/O completion (A)</p> Signup and view all the answers

What is the purpose of the device-status table in an operating system?

<p>To keep track of the state and address of each I/O device (B)</p> Signup and view all the answers

How does an operating system determine the status of I/O devices, and why is this important?

<p>By indexing into the I/O device table and modifying entries (A)</p> Signup and view all the answers

What is the primary goal of an operating system according to the text?

<p>To maximize resource utilization (B)</p> Signup and view all the answers

How are dedicated systems like workstations different from handheld computers in terms of resource utilization?

<p>Workstations have dedicated resources, while handheld computers are optimized for usability and battery life (C)</p> Signup and view all the answers

In what way does an operating system act as a control program according to the text?

<p>By controlling the execution of programs to prevent errors (C)</p> Signup and view all the answers

What is the role of the kernel in an operating system?

<p>It is the one program running at all times on the computer (A)</p> Signup and view all the answers

How are embedded computers in devices and automobiles described in terms of user interface?

<p>They have little or no user interface (D)</p> Signup and view all the answers

What function brings together controlling and allocating resources into one piece of software?

<p>The operating system (C)</p> Signup and view all the answers

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