Here’s a set of 50 multiple-choice questions (MCQs) covering Computer Fundamentals and Computer Organization. These questions are designed to test basic to intermediate knowledge of the subject.
Computer Fundamentals & Organization – MCQ (50 Questions)
1. Which of the following is NOT a function of an operating system?
a) Memory management
b) File management
c) Compiling programs
d) Process scheduling
Answer: c) Compiling programs
2. The ALU performs which type of operations?
a) Logical operations only
b) Arithmetic operations only
c) Both arithmetic and logical operations
d) Control operations
Answer: c) Both arithmetic and logical operations
3. Which register holds the memory address of the next instruction to be executed?
a) Accumulator
b) Program Counter (PC)
c) Instruction Register (IR)
d) Memory Address Register (MAR)
Answer: b) Program Counter (PC)
4. What is the smallest unit of data in a computer?
a) Byte
b) Bit
c) Nibble
d) Word
Answer: b) Bit
5. Which memory is volatile?
a) ROM
b) Hard Disk
c) RAM
d) Flash Memory
Answer: c) RAM
6. Which of the following is a secondary storage device?
a) Cache
b) SSD
c) Register
d) RAM
Answer: b) SSD
7. Which bus carries data between the processor and memory?
a) Address bus
b) Data bus
c) Control bus
d) System bus
Answer: b) Data bus
8. Which of the following is an example of an input device?
a) Printer
b) Monitor
c) Scanner
d) Speaker
Answer: c) Scanner
9. What does BIOS stand for?
a) Basic Input Output System
b) Binary Input Output System
c) Basic Integrated Operating System
d) Boot Input Output Setup
Answer: a) Basic Input Output System
10. Which generation of computers used transistors?
a) First
b) Second
c) Third
d) Fourth
Answer: b) Second
11. Which of the following is NOT a type of computer memory?
a) DRAM
b) SRAM
c) EPROM
d) USB
Answer: d) USB
12. Which component is responsible for fetching instructions?
a) ALU
b) Control Unit
c) Cache
d) I/O Unit
Answer: b) Control Unit
13. What is the full form of CPU?
a) Central Processing Unit
b) Computer Processing Unit
c) Control Processing Unit
d) Central Program Unit
Answer: a) Central Processing Unit
14. Which of the following is a non-volatile memory?
a) SRAM
b) DRAM
c) ROM
d) Cache
Answer: c) ROM
15. Which numbering system is used by computers?
a) Decimal
b) Binary
c) Hexadecimal
d) Octal
Answer: b) Binary
16. What is the purpose of an interrupt in a computer system?
a) To increase CPU speed
b) To handle high-priority tasks
c) To reduce memory usage
d) To improve graphics performance
Answer: b) To handle high-priority tasks
17. Which of the following is NOT a type of computer bus?
a) Data bus
b) Address bus
c) Control bus
d) Logic bus
Answer: d) Logic bus
18. Which cache level is closest to the CPU?
a) L1
b) L2
c) L3
d) L4
Answer: a) L1
19. What is the function of the Memory Management Unit (MMU)?
a) To manage cache memory
b) To translate virtual addresses to physical addresses
c) To control I/O operations
d) To perform arithmetic calculations
Answer: b) To translate virtual addresses to physical addresses
20. Which of the following is an example of a system software?
a) Microsoft Word
b) Adobe Photoshop
c) Windows OS
d) Google Chrome
Answer: c) Windows OS
21. What is the purpose of the control bus?
a) Carries memory addresses
b) Carries data
c) Carries control signals
d) Connects I/O devices
Answer: c) Carries control signals
22. Which register holds the data being processed by the CPU?
a) MAR
b) MDR
c) Accumulator
d) PC
Answer: c) Accumulator
23. Which of the following is a sequential access storage device?
a) Hard Disk
b) SSD
c) Magnetic Tape
d) USB Flash Drive
Answer: c) Magnetic Tape
24. Which component is responsible for performing floating-point operations?
a) ALU
b) FPU
c) CU
d) Cache
Answer: b) FPU (Floating-Point Unit)
25. What is the purpose of pipelining in a CPU?
a) To increase clock speed
b) To allow parallel execution of instructions
c) To reduce memory usage
d) To improve graphics rendering
Answer: b) To allow parallel execution of instructions
26. Which of the following is NOT a type of RAM?
a) SRAM
b) DRAM
c) EPROM
d) SDRAM
Answer: c) EPROM
27. Which of the following is a RISC processor?
a) Intel Core i7
b) ARM Cortex
c) AMD Ryzen
d) Intel Pentium
Answer: b) ARM Cortex
28. What does DMA stand for?
a) Direct Memory Access
b) Dynamic Memory Allocation
c) Data Memory Access
d) Direct Module Access
Answer: a) Direct Memory Access
29. Which of the following is an example of a multi-core processor?
a) Intel 8086
b) ARM Cortex-A53
c) AMD Ryzen 9
d) All of the above
Answer: c) AMD Ryzen 9
30. Which of the following is NOT a characteristic of Von Neumann architecture?
a) Stored program concept
b) Sequential execution
c) Separate data and instruction memory
d) Binary computation
Answer: c) Separate data and instruction memory
31. What is the purpose of the clock in a CPU?
a) To synchronize operations
b) To store data
c) To increase memory speed
d) To control I/O devices
Answer: a) To synchronize operations
32. Which of the following is a type of ROM?
a) SRAM
b) DRAM
c) EEPROM
d) Cache
Answer: c) EEPROM
33. Which of the following is NOT a peripheral device?
a) Keyboard
b) Monitor
c) CPU
d) Printer
Answer: c) CPU
34. Which of the following is a volatile memory?
a) Hard Disk
b) SSD
c) RAM
d) ROM
Answer: c) RAM
35. What is the function of an assembler?
a) Converts high-level language to machine code
b) Converts assembly language to machine code
c) Executes programs
d) Manages memory
Answer: b) Converts assembly language to machine code
36. Which of the following is a characteristic of Harvard architecture?
a) Shared memory for data and instructions
b) Separate memory for data and instructions
c) Uses a single bus
d) Slower than Von Neumann
Answer: b) Separate memory for data and instructions
37. Which of the following is NOT a part of the CPU?
a) ALU
b) CU
c) RAM
d) Registers
Answer: c) RAM
38. Which of the following is a type of system software?
a) Compiler
b) Web Browser
c) Media Player
d) Word Processor
Answer: a) Compiler
39. Which of the following is NOT a storage device?
a) HDD
b) SSD
c) RAM
d) GPU
Answer: d) GPU
40. Which of the following is an example of an optical storage device?
a) Hard Disk
b) USB Drive
c) CD-ROM
d) Magnetic Tape
Answer: c) CD-ROM
41. Which of the following is NOT a function of the operating system?
a) Process management
b) Memory management
c) Database management
d) File management
Answer: c) Database management
42. Which of the following is a type of computer network?
a) LAN
b) WAN
c) MAN
d) All of the above
Answer: d) All of the above
43. What is the full form of GUI?
a) Graphical User Interface
b) General User Interface
c) Graphical Unified Interface
d) General Unified Interface
Answer: a) Graphical User Interface
44. Which of the following is NOT a programming language?
a) Python
b) Java
c) BIOS
d) C++
Answer: c) BIOS
45. Which of the following is a characteristic of CISC architecture?
a) Fewer instructions
b) Complex instructions
c) Fixed instruction length
d) Used mostly in embedded systems
Answer: b) Complex instructions
46. Which of the following is NOT a type of printer?
a) Laser
b) Inkjet
c) Dot Matrix
d) SSD
Answer: d) SSD
47. What is the purpose of the motherboard?
a) Connects all components of a computer
b) Stores data permanently
c) Executes programs
d) Manages power supply
Answer: a) Connects all components of a computer
48. Which of the following is NOT an output device?
a) Monitor
b) Printer
c) Speaker
d) Mouse
Answer: d) Mouse
49. Which of the following is an example of firmware?
a) Windows OS
b) BIOS
c) Microsoft Word
d) Google Chrome
Answer: b) BIOS
50. What is the purpose of virtual memory?
a) To increase RAM speed
b) To extend RAM using disk space
c) To replace cache memory
d) To improve GPU performance
Answer: b) To extend RAM using disk space
Conclusion
These 50 MCQs cover fundamental concepts in Computer Organization and Architecture, including CPU components, memory types, buses, I/O devices, and more. They are useful for exams, quizzes, or self-assessment.