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Operating Systems Overview

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Questions and Answers

What is the purpose of segmentation in memory management?

To swap pages between main memory and the hard disk
To use a section of the hard drive as RAM
To indicate to the processor that a process needs attention
To split memory into logical divisions known as segments (correct)

What is the consequence of disk thrashing in a computer system?

Peripheral devices experience power failure
The computer 'freezes' due to excessive swapping between main memory and the hard disk (correct)
The operating system fails to allocate processor time efficiently
The printer signals the completion of a print job

Which data structure is used by the operating system to manage interrupts?

Priority queue (correct)
Binary tree
Hash table
Stack

What is the function of the Interrupt Service Routine (ISR) in a computer system?

To load the appropriate ISR into RAM in response to interrupts (A) Signup and view all the answers

How does virtual memory help to manage limited space in main memory?

By temporarily moving unused program sections to the hard drive through paging (A) Signup and view all the answers

When does the processor check for interrupts in a computer system?

At the end of each Fetch-Decode-Execute cycle (C) Signup and view all the answers

What is the main function of an operating system?

Providing an interface between the user and the computer (D) Signup and view all the answers

Which of the following is NOT a feature provided by operating systems?

Data encryption (B) Signup and view all the answers

What is the purpose of paging in memory management?

Splitting memory into equal-sized sections (A) Signup and view all the answers

Why is memory management crucial for an operating system?

To ensure fair distribution of memory among programs (A) Signup and view all the answers

Which task is NOT typically handled by an operating system?

Optimizing search algorithms (B) Signup and view all the answers

In computer memory, what role does virtual memory play?

Expanding available memory beyond physical RAM (C) Signup and view all the answers