Here, we have collected the most important operating system MCQ with answers often asking in various competitive examinations.
These Operating system multiple choice questions are always asked in different competitive exams like SSC, IBPS (PO and Clerk), RRB, Group D, IT Officer, etc.
We have also covered that operating system objective questions that asked in different competitive exams.
So, let’s start to practice these significant questions.
Operating System MCQ with Answer
1. A software program that serves as an interface between the user of a Computer and computer hardware is called
(a) Application software
(b) Utility system
(c) Compiler
(d) Operating system
Answer: (d), an operating system is system software that controls the internal operations in the computer and controls how the computer system works well all its hardware components. In simple words, an operating system is responsible for managing computer hardware.
2. Which of the following controls how your computer system runs or functions and provides a means by which a user can interact with the computer?
(a) Motherboard
(b) Application software
(c) Interpreter
(d) Operating system
Answer: (d), an operating system is a software program that manages the hardware of computer system including CPU, RAM, hard disk, and input/output devices.
3. The primary functions of an operating system to the convenience of the user are
(a) To control the planning, monitoring, and the performance of CPU.
(b) To manage all data files in a computer system.
(c) To manage the operation and maintenance of the input/output device, as well as to facilitate the interface between all connected devices.
(d) To control and coordinate computer memory.
(e) All of the above
Answer: (e)
4. Which of the following is a single user operating system?
(a) Unix
(b) Linux
(c) Windows 95
(d) MS-DOS
Answer: (d)
5. What is the full form of MS-DOS?
(a) Microsoft Disk Operating System
(b) Microsoft Double Operating System
(c) Microsoft Dual Operating System
(d) Microsoft Dual Operation System
Answer: (a)
6. An operating system that allows only one user at a time or to manage one task at a time is
(a) Multi User Operating System
(b) Single User Operating System
(c) Multi-tasking Operating System
(d) Single Processing Operating System
Answer: (b)
7. Which of the following was the first single user command based operating system (OS) for PC?
(a) Windows 9X
(b) VMS
(c) Windows 95
(d) PC-DOS
Answer: (d), The disk operating system (DOS) was developed by Microsoft in the August 1981 for IBM. It supports only 256KB of RAM and two 160 KB 5.25″ single sided floppy disk.
8. Which of the following is/are single user operating system?
(a) Windows 95
(b) Windows 9X
(c) MS-DOS
(d) VMS
(e) Both b and c
Answer: (e)
9. Which of the following is/are multitasking operating system?
(a) Linux
(b) Unix
(c) Windows 95
(d) All of the above
Answer: (d), multitasking operating system allows executing more than one processes concurrently and the user to switch between running applications.
10. Which of the following operating system is responsible for scheduling tasks according to priority and resource required?
(a) Time Sharing Operating System
(b) Real time Operating System
(c) Multi User Operating System
(d) Batch Processing Operating System
Answer: (d)
11. Which of the following is a batch processing operating system?
(a) Linux
(b) VMS
(c) Unix
(d) Mac OS
Answer: (c)
12. Why do we need an operating system in a computer system?
(a) To manage resources
(b) To make computer system user-friendly
(c) To control hardware
(d) To provide interaction between user and computer hardware
(e) All of these
Answer: (e)
13. The first version of Microsoft Windows 1.0 was introduced in
(a) November 1985
(b) October 1986
(c) August 1980
(d) None
Answer: (a), the first version of Microsoft Windows 1.0 included a set of applications like clock, calculator, calendar, notepad, and other small applications. The system requirements for Windows 1.0 were 256 KB of RAM, DOS 2.0, and two floppy drives.
14. Which of the following Windows version had been included advanced graphics, and more powerful Intel 386 processor in 1990?
(a) Microsoft Windows 1.0
(b) Microsoft Windows 2.0
(c) Microsoft Windows 3.0
(d) None of these
Answer: (c), the system requirements for Microsoft Windows 3.0 were 2 MB of RAM, DOS 3.1, and disk space 8 MB.
15. Which of the following was the most popular and successful version released in 1995 that supported GUI, 32-bit TCP/IP and dial up networking?
(a) MS-DOS
(b) Windows 98
(c) Windows 95
(d) Windows NT
Answer: (c)
16. What is the full form of GUI?
(a) Graphical User Intercommunication
(b) Graphical User Interface
(c) Graphics User Interface
(d) Graphics User Intercommunication
Answer: (b)
17. The first graphical user interface was designed in the 1970s by
(a) Microsoft
(b) IBM
(c) Intel
(d) Xerox Corporation
Answer: (d)
18. Which of the following is also known as Command Line Interface (CLI)?
(a) Character User Interface
(b) Command User Interface
(c) Command User Intercom
(d) None of these
Answer: (a)
19. Which of the following is not the function of an operating system?
(a) Processor Management
(b) File Management
(c) Resource Management
(d) Networking
Answer: (d)
20. Grouping and processing all of a firm’s transactions at one time is known as
(a) Database management system
(b) Real time system
(c) Batch processing system
(d) Time sharing system
Answer: (c)
21. Microsoft Windows operating system is . . . . . and . . . . .
(a) Multitasking, Multiuser
(b) Multiuser, Single tasking
(c) Single user, Multitasking
(d) Single user, Single tasking
Answer: (c)
22. Which of the following provides the execution of more than one file on a single processor at a time?
(a) Single tasking
(b) Scheduling
(c) Multiprocessing
(d) Multitasking
Answer: (c)
23. Which of the following allows running two or more tasks, or programs simultaneously?
(a) Multithreading
(b) Multiprocessing
(c) Multitasking
(d) Multicomputing
Answer: (c)
24. The processing of two or more programs by multiple processors is known as
(a) Multiprogramming
(b) Multitasking
(c) Time sharing
(d) Multiprocessing
Answer: (d)
25. What is the full form of RTOS?
(a) Reliable Time Operating System
(b) Real Time Operating System
(c) Reboot Time Operating System
(d) None of these
Answer: (b)
26. A system that runs more than one process concurrently is called
(a) Multiprogramming
(b) Batch processing
(c) Multiprocessing
(d) Real time processing
Answer: (a)
27. The process which is used to load the operating system in the memory of computer is called
(a) Processing
(b) Booting
(c) Starting
(d) Synchronizing
Answer: (b), booting is the process that checks to ensure the components of computer are connected and operating properly. It is the first process that executes when we switch on our computer.
28. Which program is typically stored in ROM (read only memory) of a computer system?
(a) Application program
(b) operating system program
(c) Bootstrap program
(d) Both b and c
Answer: (c)
29. The purpose of bootstrap loader in a computer system is
(a) to initialize CPU registers
(b) device controllers
(c) to load and start execution process of operating system
(d) All of these
Answer: (d), a bootstrap loader is a small program that loads the operating system in the memory and allow it to start the operation.
30. The process of choosing a task among several tasks in the pool and loading it into the main memory, is
(a) Single processing
(b) Job scheduling
(c) Single programming
(d) Single tasking
Answer: (b)
31. What is the full form of POST?
(a) Power On Self Test
(b) Power Off Self Test
(c) Power On/Off Self Test
(d) None
Answer: (a)
32. What is the full form of BIOS?
(a) Basic Input Output System
(b) Input Output Basic System
(c) Booting Input Output System
(d) None
Answer: (a)
33. Which of the following checks the validity of all hardware devices connected with computer such as keyboard, mouse, monitor, etc.?
(a) BIOS
(b) POST
(c) SIMPS
(d) Master Boot Record
Answer: (b)
34. When a computer is already ON, restart of the computer by pressing the combination of Ctrl + Alt + Del keys is called
(a) cold booting
(b) warm booting
(c) shut down
(d) logging off
Answer: (b)
35. Which of the following is/are the primary tasks of an operating system in the most general sense?
(a) Processor management
(b) User interface
(c) Memory management
(d) Device and storage management
(e) All of these
Answer: (e)
In this tutorial, you practiced the most important operating system MCQ with answers that can be asked in various competitive exams. Hope that you will have liked these realtime operating system mcq objective questions.
Thanks for reading!!!
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