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Operating System Lecture 1: System Components and Functions

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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?

Personal computing system (B) Signup and view all the answers

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

Parallel system (D) Signup and view all the answers

What is the main characteristic of a distributed system?

Shared memory across multiple computers (A) Signup and view all the answers

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

Computation speed up (D) Signup and view all the answers

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

Deals with interrupts (D) Signup and view all the answers

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

Direct Memory Access (A) Signup and view all the answers

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

To provide the smallest legal physical address (A) Signup and view all the answers

What is the main objective of CPU scheduling?

Utilization maximization (B) Signup and view all the answers

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

Pre-emptive scheduling (D) Signup and view all the answers

What does throughput measure in the context of processes?

Number of processes completed per time unit (D) Signup and view all the answers

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

I/O boundedness (D) Signup and view all the answers

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

Gives control to CPU to select process by OS (D) Signup and view all the answers

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

Size of the range (privilege only in kernel mode) (A) Signup and view all the answers