Computer Organization MCQs - Class 11 IT (802) | 🔥 Full Practice & Score 🏆

Prepare your Class 11 IT exam with this curated collection of Computer Organization MCQs. Designed strictly according to the latest CBSE syllabus, these practice questions help you test your core concepts, identify weak areas, and score higher in your exams.

Why Practice These MCQs?

CBSE Syllabus-Aligned: Covers all important concepts as suggested by cbse for Unit-1 Computer Organization.
Exam-Focused Practice: Questions are designed as per latest CBSE question patterns and difficulty levels.
Answers Included: Clear answers provided with every question for self-assessment.

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Q1. What is the primary purpose for which the early calculating devices were developed?
a) Entertainment
b) Fast calculations
c) Communication
d) Data storage

Q2. The term “computer” is derived from the word:
a) Compute
b) Compact
c) Communication
d) Compilation

Q3. Which sequence correctly represents the basic working of a computer?
a) Output → Input → Process
b) Process → Input → Output
c) Input → Process → Output
d) Input → Output → Process

Q4. A computer fundamentally works on:
a) Decimal signals
b) Electronic signals
c) Analog instructions only
d) Human language

Q5. In a computer, the ON and OFF signals are represented by:
a) 2 and 3
b) A and B
c) 1 and 0
d) 0 and 2

Q6. Which language uses only 0 and 1?
a) Python
b) Java
c) Machine language
d) C++

Q7. A programmer writes instructions in Python. Before the computer can execute them, these instructions need to be:
a) Printed
b) Converted into binary language
c) Stored only in secondary memory
d) Converted into decimal numbers

Q8. Which of the following is a high-level language?
a) Machine language
b) Binary language
c) Python
d) 0 and 1

Q9. Which of the following is a tangible component of a computer?
a) Operating system
b) Word processor
c) Keyboard
d) Spreadsheet program

Q10. Which of the following is an example of software?
a) Mouse
b) Monitor
c) Keyboard
d) Operating system

Q11. A student enters marks into a computer and the computer calculates the total. The marks entered by the student represent:
a) Output
b) Input
c) Processing
d) Storage only

Q12. The calculated total displayed on the monitor represents:
a) Input
b) Processing
c) Output
d) Program

Q13. A computer performs millions of instructions in a very short time. This demonstrates its:
a) Diligence
b) Speed
c) Versatility
d) Intelligence

Q14. A teacher uses the same computer to prepare a document, calculate salaries and create a presentation. Which characteristic is demonstrated?
a) Accuracy
b) Diligence
c) Versatility
d) Memory

Q15. A computer produces an incorrect salary report because incorrect data was entered. This situation is best explained by:
a) CPU failure
b) GIGO
c) Cache memory
d) Diligence

Q16. GIGO stands for:
a) Good Input Good Output
b) Garbage Input Garbage Output
c) Garbage In Garbage Out
d) General Input General Output

Q17. A computer repeatedly performs the same calculation thousands of times without becoming tired. This illustrates:
a) Accuracy
b) Diligence
c) Intelligence
d) Versatility

Q18. Which memory loses its contents when the power is switched off?
a) Secondary memory
b) RAM
c) Hard disk
d) Pen drive

Q19. Which type of memory retains data even after the computer is switched off?
a) Volatile memory
b) Secondary memory
c) RAM
d) Working memory

Q20. Which characteristic allows a computer to store huge amounts of information for future retrieval?
a) Storage
b) Diligence
c) Speed
d) Accuracy

Q21. Modern computers that can drive cars or play chess against strong players demonstrate the use of:
a) Secondary storage
b) Artificial intelligence techniques
c) ROM
d) Batch processing

Q22. Which two broad categories together form a computer system?
a) Input and output
b) Hardware and software
c) RAM and ROM
d) CPU and memory

Q23. Which unit receives data and instructions from the user?
a) Output unit
b) Input unit
c) ALU
d) Control Unit

Q24. Which unit performs the actual processing of data?
a) ALU
b) Monitor
c) Keyboard
d) Printer

Q25. Which component coordinates the activities of different units of a computer?
a) RAM
b) ALU
c) Control Unit
d) Hard disk

Q26. Which component performs arithmetic calculations and comparisons?
a) CU
b) ALU
c) RAM
d) ROM

Q27. The result generated after processing may be directed to:
a) Output devices or a memory location
b) Only the keyboard
c) Only the mouse
d) Only the input unit

Q28. Which memory is directly accessible by the CPU?
a) Primary memory
b) Secondary storage
c) Optical storage
d) Pen drive

Q29. Primary memory is also known as:
a) External memory
b) Working memory
c) Optical memory
d) Portable memory

Q30. Which of the following is a primary memory?
a) Pen drive
b) Hard disk
c) RAM
d) CD

Q31. RAM is classified as:
a) Non-volatile memory
b) Primary volatile memory
c) Secondary memory
d) Optical memory

Q32. Which type of RAM is generally used in main memory?
a) SRAM
b) DRAM
c) ROM
d) EEPROM

Q33. Which type of RAM is used in cache?
a) DRAM
b) SRAM
c) PROM
d) EEPROM

Q34. Which statement correctly compares DRAM and SRAM?
a) DRAM is faster and more expensive than SRAM
b) SRAM is slower and cheaper than DRAM
c) SRAM is faster and more expensive than DRAM
d) Both have identical characteristics

Q35. Which memory is generally used during startup operations?
a) ROM
b) RAM
c) Pen drive
d) Hard disk

Q36. ROM is:
a) Volatile primary memory
b) Non-volatile primary memory
c) Secondary storage
d) Cache memory

Q37. Which of the following is NOT listed as a classification of ROM?
a) PROM
b) EPROM
c) EEPROM
d) DRAM

Q38. Which memory acts as a buffer between CPU and primary memory?
a) ROM
b) Cache memory
c) Hard disk
d) Pen drive

Q39. Cache memory is mainly used because:
a) CPU is slower than primary memory
b) CPU is very fast and needs faster access to data
c) It permanently stores all files
d) It replaces secondary storage

Q40. Which of the following is an example of secondary storage?
a) RAM
b) Cache
c) Pen drive
d) SRAM

Q41. Secondary storage is generally:
a) Directly connected to CPU
b) External to the computer system
c) Always volatile
d) Used only during startup

Q42. Which device is primarily used for text input?
a) Keyboard
b) Monitor
c) Printer
d) Speaker

Q43. Which device is specifically used as a pointing input device?
a) Scanner
b) Mouse
c) Webcam
d) Microphone

Q44. A student wants to enter voice into a computer. Which device should be used?
a) Scanner
b) Microphone
c) Plotter
d) Monitor

Q45. Which device captures video/image input?
a) Webcam
b) Speaker
c) Printer
d) Projector

Q46. Which is the main circuit board that connects all components of a computer?
a) CPU
b) Motherboard
c) Hard disk
d) RAM

Q47. Which of these is an input device used for voice/audio input?
a) Scanner
b) Microphone
c) Webcam
d) Speaker

Q48. A scanner generally stores data in the form of:
a) Text
b) Graphics
c) Audio
d) Video only

Q49. Which is an output device used to give an enlarged view on a large screen for audiences?
a) Monitor
b) Plotter
c) Projector
d) Printer

Q50. A large printer-like device used to print maps and architectural designs is called:
a) Scanner
b) Plotter
c) Projector
d) Webcam

Q51. VDU stands for:
a) Video Display Unit
b) Visual Display Unit
c) Virtual Display Unit
d) Verified Display Unit

Q52. The printout given by a printer is also called:
a) Soft copy
b) Hard copy
c) Digital copy
d) Screen copy

Q53. A teacher wants to display computer output to a large audience. Which device would be most suitable?
a) Scanner
b) Projector
c) Keyboard
d) Microphone

Q54. Data stored in Primary Memory is directly accessible by:
a) Hard disk
b) CPU
c) Pen drive
d) CD-ROM

Q55. RAM is a type of:
a) Non-volatile secondary memory
b) Volatile primary memory
c) Non-volatile primary memory
d) Volatile secondary memory

Q56. Which type of RAM is used in cache memory?
a) DRAM
b) SRAM
c) ROM
d) PROM

Q57. CPU speed is commonly expressed in:
a) Bytes and bits
b) MHz and GHz
c) KB and MB
d) Baud only

Q58. Which storage device is magnetic and generally fixed inside the computer?
a) Hard disk
b) CD
c) DVD
d) Pen drive

Q59. A program stored on a hard disk needs to be executed. It is first transferred to:
a) ROM
b) RAM
c) CD
d) Printer

Q60. A pen drive is connected to a computer through a:
a) VGA port
b) USB port
c) Audio port
d) Printer port only

Q61. One byte is equal to:
a) 2 bits
b) 4 bits
c) 8 bits
d) 16 bits

Q62. One nibble is equal to:
a) 2 bits
b) 4 bits
c) 8 bits
d) 16 bits

Q63. 1024 KB is equal to:
a) 1 GB
b) 1 MB
c) 1 TB
d) 1 byte

Q64. 1024 MB is equal to:
a) 1 GB
b) 1 KB
c) 1 TB
d) 1 PB

Q65. Which has a higher capacity according to the given content?
a) CD
b) DVD
c) Both always have equal capacity
d) Pen drive only

Q66. A pen drive/flash drive is accessed by inserting it into which port?
a) VGA
b) USB
c) HDMI
d) Ethernet

Q67. Who is known as the father of the operating system?
a) Bill Gates
b) Gary Arlen Kildall
c) Steve Jobs
d) Dennis Ritchie

Q68. Which of the following is NOT an example of an operating system?
a) Windows
b) Linux
c) MS-DOS
d) MS-Word

Q69. An operating system primarily acts as an interface between:
a) User and computer hardware
b) Keyboard and mouse only
c) Printer and paper
d) CPU and monitor only

Q70. Which operating system function manages communication with peripheral devices?
a) File Management
b) Communication Manager
c) Memory Management
d) Process Management

Q71. The special programs that enable the operating system to recognize peripheral devices are called:
a) Drivers
b) Processes
c) Files
d) Utilities

Q72. Which function allocates CPU time, memory and other resources to processes?
a) Resource Management
b) File Management
c) Communication Manager
d) Output Management

Q73. Which OS function decides which process gets the processor and for how long?
a) File Management
b) Process Management
c) Memory Management
d) Communication Management

Q74. Which OS function dynamically allocates RAM to processes?
a) Memory Management
b) File Management
c) Communication Manager
d) Resource Storage

Q75. FAT is used by an operating system to:
a) Control monitor brightness
b) Keep track of files on the hard disk
c) Increase CPU speed
d) Control speaker volume

Q76. FAT 32 uses how many bits to store data?
a) 16
b) 32
c) 64
d) 128

Q77. FAT stands for:
a) File Allocation Table
b) File Access Type
c) Fast Allocation Table
d) File Attribute Table

Q78. An operating system that allows only one program to execute at a given instant is:
a) Multi-tasking OS
b) Multi-user OS
c) Single-tasking OS
d) Real-time OS

Q79. An OS that divides processor time among multiple processes is:
a) Single-tasking
b) Multi-tasking
c) Batch-only
d) Single-user

Q80. An operating system designed to provide a fixed response time is called:
a) Batch operating system
b) Real-time operating system
c) Single-user operating system
d) Single-tasking operating system

Q81. In batch processing:
a) Jobs are processed individually with continuous user interaction
b) Similar jobs are grouped and submitted as a block
c) Only one user can access the system
d) Response time must always be fixed

Q82. Which is the most appropriate first troubleshooting action when a connected device is not working?
a) Immediately replace the device
b) Check cables and connections
c) Format the computer
d) Delete all files

Q83. If a monitor shows a blank screen and the computer may be in Sleep mode, the first action should be to:
a) Replace the monitor
b) Click the mouse or press a keyboard key
c) Format the hard disk
d) Change the printer driver

Q84. If an application is frozen and shows “Not Responding”, which tool can be used to end it?
a) Disk Cleanup
b) Task Manager
c) Calculator
d) File Explorer

Q85. Which command is used in the given troubleshooting procedure to check the system’s IP information?
a) PING
b) IPCONFIG
c) CMD
d) RUN

Q86. Which command is used to check whether the network card is working?
a) IPCONFIG
b) PING 127.0.0.1
c) DIR
d) RUN

Q87. Which of the following is the first troubleshooting step recommended when a device fails to switch on?
a) Replace the device
b) Check the cables
c) Reinstall the OS
d) Format the disk

Q88. If the monitor shows a blank screen, one possible cause could be:
a) The printer is out of paper
b) The system is in sleep mode
c) The mouse cable is loose
d) The RAM is full

Q89. If a key on the keyboard is stuck, what should be done first?
a) Replace the keyboard immediately
b) Turn off the computer
c) Restart the printer
d) Update the driver

Q90. Which of the following is NOT a suggested step for mouse troubleshooting?
a) Check connections
b) Clean the mouse
c) Check for damage
d) Update printer driver