Elementary Computer Applications- MCQs- Paper- 05- Topics:-:- Operating System
🔹 Concept of Operating System
1. What is an Operating System?
A) Hardware device
B) Application software
C) System software
D) Utility program
✅
Answer: C
2. The main purpose of an operating
system is to:
A) Compile programs
B) Manage computer resources
C) Create documents
D) Design hardware
✅
Answer: B
3. Which of the following is not a
function of OS?
A) Process management
B) Memory management
C) File management
D) Word processing
✅
Answer: D
4. OS acts as an interface between:
A) User and hardware
B) Software and printer
C) CPU and RAM
D) Monitor and keyboard
✅
Answer: A
5. Which is the core part of the
Operating System?
A) Shell
B) Kernel
C) Compiler
D) Driver
✅
Answer: B
6. Which of the following is system
software?
A) MS Word
B) Windows
C) Photoshop
D) Chrome
✅
Answer: B
7. Booting refers to:
A) Shutting down system
B) Restarting system
C) Loading OS into memory
D) Installing OS
✅
Answer: C
8. Which memory is loaded first
during booting?
A) RAM
B) ROM
C) Cache
D) Hard disk
✅
Answer: B
9. A program in execution is
called:
A) Job
B) Task
C) Process
D) Thread
✅
Answer: C
10. CLI stands for:
A) Computer Line Interface
B) Command Line Interface
C) Code Level Interface
D) Control Line Interface
✅
Answer: B
🔹 Need of Operating System
11. OS is needed to:
A) Play games only
B) Manage hardware and software
C) Print documents
D) Browse internet
✅
Answer: B
12. Without an OS, a computer can:
A) Run normally
B) Run slowly
C) Not function properly
D) Only print
✅
Answer: C
13. Resource allocation is done by:
A) User
B) OS
C) CPU
D) Compiler
✅
Answer: B
14. Device drivers are used to:
A) Run games
B) Control hardware devices
C) Design UI
D) Edit files
✅
Answer: B
15. OS provides security through:
A) Passwords and permissions
B) Mouse
C) Monitor
D) Printer
✅
Answer: A
🔹 Types of Operating System – Batch
OS
16. In Batch OS, jobs are
processed:
A) One by one without user interaction
B) With user interaction
C) Randomly
D) Online
✅
Answer: A
17. Batch OS is best suited for:
A) Real-time gaming
B) Scientific calculations
C) Online chatting
D) Web browsing
✅
Answer: B
18. In Batch processing, similar
jobs are grouped into:
A) Threads
B) Sets
C) Batches
D) Blocks
✅
Answer: C
19. User interaction in Batch OS
is:
A) High
B) Medium
C) None
D) Continuous
✅
Answer: C
20. Batch OS disadvantage is:
A) Fast response
B) High interaction
C) Long waiting time
D) Easy debugging
✅
Answer: C
🔹 Single User Operating System
21. A single user OS supports:
A) Many users at same time
B) Only one user at a time
C) No users
D) Two users
✅
Answer: B
22. Example of Single User OS:
A) MS-DOS
B) UNIX
C) Linux Server
D) Mainframe OS
✅
Answer: A
23. Single user OS is commonly used
in:
A) Personal computers
B) Supercomputers
C) Servers
D) Networks
✅
Answer: A
24. Single user multitasking OS
example:
A) Windows
B) Batch OS
C) DOS
D) None
✅
Answer: A
25. MS-DOS is:
A) Single user single tasking
B) Multiuser
C) Time sharing
D) Multiprocessing
✅
Answer: A
🔹 Multiprocessing Operating System
26. Multiprocessing OS uses:
A) One CPU
B) Two or more CPUs
C) No CPU
D) Virtual CPU only
✅
Answer: B
27. Advantage of multiprocessing:
A) Slower speed
B) Higher throughput
C) More errors
D) Less memory
✅
Answer: B
28. Multiprocessing improves:
A) Performance
B) Printing
C) Typing
D) Storage
✅
Answer: A
29. Example of Multiprocessing OS:
A) Linux
B) Windows Server
C) UNIX
D) All of these
✅
Answer: D
30. Multiprocessing is useful for:
A) Heavy computations
B) Playing music
C) Typing notes
D) Drawing
✅
Answer: A
🔹 Time Sharing Operating System
31. Time sharing OS allows:
A) One user only
B) Multiple users simultaneously
C) No user
D) Offline use only
✅
Answer: B
32. CPU time is divided into:
A) Blocks
B) Threads
C) Time slices
D) Jobs
✅
Answer: C
33. Time sharing OS gives:
A) Slow response
B) Quick response
C) No response
D) Delayed output
✅
Answer: B
34. Example of Time Sharing OS:
A) UNIX
B) Windows
C) Linux
D) All of these
✅
Answer: D
35. Time sharing is based on:
A) Round robin scheduling
B) FCFS only
C) LIFO
D) Priority only
✅
Answer: A
🔹 Introduction to Windows
36. Windows is developed by:
A) Apple
B) Google
C) Microsoft
D) IBM
✅
Answer: C
37. Windows is a:
A) CLI OS
B) GUI OS
C) Batch OS
D) Compiler
✅
Answer: B
38. The first screen after Windows
starts is called:
A) Taskbar
B) Desktop
C) Window
D) File
✅
Answer: B
39. The bar at bottom of Windows
screen is:
A) Menu bar
B) Title bar
C) Taskbar
D) Status bar
✅
Answer: C
40. The Start button is located on:
A) Desktop
B) Taskbar
C) Window
D) Toolbar
✅
Answer: B
41. Recycle Bin is used to:
A) Store system files
B) Store deleted files
C) Run programs
D) Install drivers
✅
Answer: B
42. A small graphical
representation of program is:
A) File
B) Icon
C) Folder
D) Menu
✅
Answer: B
43. File Explorer is used to:
A) Browse files and folders
B) Play games
C) Write code
D) Compile program
✅
Answer: A
44. Shortcut key to copy in
Windows:
A) Ctrl + X
B) Ctrl + V
C) Ctrl + C
D) Ctrl + A
✅
Answer: C
45. Shortcut key to paste:
A) Ctrl + V
B) Ctrl + P
C) Ctrl + S
D) Ctrl + Z
✅
Answer: A
46. Windows supports:
A) Multitasking
B) Single task only
C) No tasks
D) Batch only
✅
Answer: A
47. Control Panel is used for:
A) System settings
B) Gaming
C) Browsing
D) Typing
✅
Answer: A
48. A folder in Windows is also
called:
A) Directory
B) File
C) Program
D) Drive
✅
Answer: A
49. Which key opens the Start Menu?
A) Ctrl
B) Alt
C) Windows key
D) Tab
✅
Answer: C
50. GUI stands for:
A) General User Interface
B) Graphical User Interface
C) Global User Interface
D) Graphic Utility Interface
✅
Answer: B
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