What is the purpose of virtual memory in an operating system?

To provide the illusion of more memory than physically available

What is the primary purpose of device drivers in an operating system?

To allow the OS to communicate with hardware devices

What is an operating system?

A system software that acts as an interface between hardware and user

What is the kernel in an operating system?

The software that manages hardware resources

What is the difference between a system program and a system call?

Sys calls provide services of the OS, syspgm provide higher-level services

What is a system program?

A program that provides a service to the system or users

What is a system call?

A request from a user program to the operating system for a service

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OS Quizzz - Unit 1

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Questions 13

Answers

1
What is the purpose of virtual memory in an operating system?
To store permanent data
To execute machine instructions
To increase the speed of the CPU
To provide the illusion of more memory than physically available
2
Which of the following is NOT a function of an operating system?
Process management
File management
Memory management
Database management
3
Which type of operating system allows multiple users to use the system simultaneously?
Multi-user OS
Single-user OS
Real-time OS
Batch processing OS
4
What is the primary purpose of device drivers in an operating system?
To create software applications
To update the OS
To allow the OS to communicate with hardware devices
To increase hardware speed
5
What is an operating system?
A system software that acts as an interface between hardware and user
A hardware component
A type of application software
A programming language
6
Which of the following is an example of a system call?
Open a file
Print a document
Compile a program
Update software
7
Which layer of the operating system is closest to the hardware?
Kernel
File system
Application layer
Shell
8
What is the kernel in an operating system?
The software that manages hardware resources
The graphical interface of the OS
The hardware component
The application used for user interaction
9
What is the difference between a system program and a system call?
System programs interact directly with hardware, system calls do not
There is no difference
Sys calls provide services of the OS, syspgm provide higher-level services
Sys calls are user-level requests, while system pgms are OS-level processes
10
What is a system program?
A program to monitor user activity
A program that provides a service to the system or users
A program that directly interacts with hardware
A type of application software
11
Which component handles interrupts in an operating system?
File system
Memory manager
Interrupt handler
Scheduler
12
Which of the following is an example of a system program?
Both b) and c)
Text editor
Compiler
Word processor
13
What is a system call?
A function provided by the hardware
A program execution call
An error-handling mechanism
A request from a user program to the operating system for a service

OS Quizzz - Unit 1 Flashcards | StudBud