1. Which of the following is an example of real-time OS?
A) VxWorks
B) Windows
C) Linux
D) macOS
Answer: A) VxWorks
An Operating System is a:
A) Application Software
B) System Software
C) Utility Software
D) Programming Language
Answer: B) System Software
The main function of an operating system is to:
A) Compile programs
B) Manage hardware and software resources
C) Design software
D) Create documents
Answer: B) Manage hardware and software resources
Which of the following is an example of an Operating System?
A) MS Word
B) Linux
C) Photoshop
D) Excel
Answer: B) Linux
The operating system that allows multiple users to use the computer simultaneously is called:
A) Single-user OS
B) Multi-user OS
C) Batch OS
D) Real-time OS
Answer: B) Multi-user OS
Which of the following is the brain of the operating system?
A) Kernel
B) Compiler
C) Shell
D) Driver
Answer: A) Kernel
The kernel of an operating system performs:
A) User interaction
B) Hardware control
C) File editing
D) Internet browsing
Answer: B) Hardware control
Which operating system is developed by Microsoft?
A) Linux
B) Windows
C) Unix
D) Android
Answer: B) Windows
Which of the following is an open-source operating system?
A) Windows
B) Linux
C) macOS
D) DOS
Answer: B) Linux
The operating system responsible for managing files is:
A) File System
B) Device Manager
C) Kernel
D) Scheduler
Answer: A) File System
Which OS was developed by AT&T Bell Labs?
A) Windows
B) Unix
C) Linux
D) DOS
Answer: B) Unix
Which operating system is used mainly in smartphones?
A) Windows
B) Linux
C) Android
D) DOS
Answer: C) Android
The interface between user and hardware is called:
A) Software
B) Operating System
C) Application
D) Utility
Answer: B) Operating System
Which OS processes jobs in groups without user interaction?
A) Batch OS
B) Time-sharing OS
C) Real-time OS
D) Distributed OS
Answer: A) Batch OS
In which OS multiple tasks run at the same time?
A) Multitasking OS
B) Batch OS
C) Single-user OS
D) Embedded OS
Answer: A) Multitasking OS
The program that schedules processes is called:
A) Loader
B) Scheduler
C) Editor
D) Assembler
Answer: B) Scheduler
Which OS provides immediate response to inputs?
A) Real-Time OS
B) Batch OS
C) Distributed OS
D) Network OS
Answer: A) Real-Time OS
Which of the following is a mobile operating system?
A) Linux
B) Android
C) Unix
D) DOS
Answer: B) Android
The command interpreter in an operating system is known as:
A) Kernel
B) Shell
C) Compiler
D) Loader
Answer: B) Shell
Which OS allows users to share resources over a network?
A) Network OS
B) Real-time OS
C) Batch OS
D) Embedded OS
Answer: A) Network OS
Which of the following is NOT an operating system?
A) Windows
B) Linux
C) Oracle
D) macOS
Answer: C) Oracle
The process of loading the operating system into memory is called:
A) Booting
B) Executing
C) Processing
D) Compiling
Answer: A) Booting
Cold booting refers to:
A) Restarting without power off
B) Starting computer from powered-off state
C) Running programs
D) Installing OS
Answer: B) Starting computer from powered-off state
Restarting the computer without switching off power is called:
A) Cold boot
B) Warm boot
C) Hard boot
D) Soft loading
Answer: B) Warm boot
The program that starts the booting process is called:
A) Bootstrap Loader
B) Kernel
C) Shell
D) Driver
Answer: A) Bootstrap Loader
Which OS allows many users to run programs at the same time?
A) Multitasking OS
B) Multiuser OS
C) Single-user OS
D) Embedded OS
Answer: B) Multiuser OS
Which OS manages hardware devices like printer and keyboard?
A) Device Manager
B) Device Driver
C) File Manager
D) Process Manager
Answer: B) Device Driver
The smallest program that runs in OS memory is called:
A) Process
B) Program
C) File
D) Task
Answer: A) Process
Which OS component manages CPU allocation?
A) Scheduler
B) Loader
C) Compiler
D) Editor
Answer: A) Scheduler
The memory used by programs during execution is called:
A) ROM
B) Cache
C) RAM
D) Flash
Answer: C) RAM
The operating system manages:
A) Memory
B) Processes
C) Devices
D) All of these
Answer: D) All of these
Which OS is used in ATMs and traffic control systems?
A) Real-time OS
B) Batch OS
C) Distributed OS
D) Network OS
Answer: A) Real-time OS
Which OS distributes tasks among multiple computers?
A) Distributed OS
B) Batch OS
C) Real-time OS
D) Embedded OS
Answer: A) Distributed OS
Which OS is commonly used on Apple computers?
A) Linux
B) Windows
C) macOS
D) Unix
Answer: C) macOS
The operating system keeps track of files using:
A) File System
B) Compiler
C) Kernel
D) Shell
Answer: A) File System
Which of the following is NOT a function of OS?
A) Memory Management
B) File Management
C) Device Management
D) Web Designing
Answer: D) Web Designing
Which of the following is a network operating system?
A) Windows Server
B) Linux
C) Android
D) DOS
Answer: A) Windows Server
The OS component that interacts with the user is:
A) Kernel
B) Shell
C) Driver
D) Loader
Answer: B) Shell
The primary purpose of OS is:
A) Entertainment
B) Resource management
C) Programming
D) Game development
Answer: B) Resource management
Which OS type is designed for dedicated devices?
A) Embedded OS
B) Batch OS
C) Distributed OS
D) Multi-user OS
Answer: A) Embedded OS
Which OS supports multitasking?
A) Windows
B) DOS
C) Batch OS
D) None
Answer: A) Windows
DOS stands for:
A) Disk Operating System
B) Digital Operating System
C) Data Operating System
D) Direct Operating System
Answer: A) Disk Operating System
Which OS is command-line based?
A) DOS
B) Windows
C) macOS
D) Android
Answer: A) DOS
The graphical interface used in modern OS is called:
A) GUI
B) CLI
C) API
D) BIOS
Answer: A) GUI
Which OS first introduced GUI widely?
A) Windows
B) Linux
C) DOS
D) Unix
Answer: A) Windows
Which OS allows multiple programs to run simultaneously?
A) Multiprogramming OS
B) Batch OS
C) Embedded OS
D) Single-task OS
Answer: A) Multiprogramming OS
The process of allocating memory to programs is called:
A) Memory Management
B) Device Management
C) File Management
D) Task Scheduling
Answer: A) Memory Management
Which OS is widely used for servers?
A) Linux
B) Android
C) iOS
D) DOS
Answer: A) Linux
The operating system that supports networking is called:
A) Network OS
B) Embedded OS
C) Batch OS
D) Standalone OS
Answer: A) Network OS
50. Which OS manages input and output devices?
A) Device Management
B) File System
C) Scheduler
D) Kernel
Answer: A) Device Management