Computer Fundamentals-50 MCQs
Computer Fundamentals-50 MCQs
1. A computer is an ______ device.
a) Mechanical
b) Electrical
c) Electronic
d) Manual
Ans: c
Explanation: Computer works using electronic circuits.
2. Who is called the Father of Computer?
a) Alan Turing
b) Charles Babbage
c) Bill Gates
d) John Napier
Ans: b
Explanation: He designed the Analytical Engine.
3. IPO stands for:
a) Input–Process–Output
b) Internet–Program–Output
c) Input–Program–Operation
d) Information–Process–Output
Ans: a
Explanation: Computer follows IPO cycle.
4. Which unit is known as the brain of the computer?
a) RAM
b) CPU
c) Hard Disk
d) Monitor
Ans: b
Explanation: CPU controls all operations.
5. Which of the following is NOT a characteristic of computer?
a) Speed
b) Accuracy
c) Intelligence
d) Storage
Ans: c
Explanation: Computer has no intelligence of its own.
Hardware
6. Which is an input device?
a) Printer
b) Monitor
c) Keyboard
d) Speaker
Ans: c
Explanation: Keyboard is used to input data.
7. Which is an output device?
a) Mouse
b) Scanner
c) Monitor
d) Keyboard
Ans: c
Explanation: Monitor displays output.
8. Which device is used to scan documents?
a) Printer
b) Scanner
c) Plotter
d) Monitor
Ans: b
Explanation: Scanner converts paper data to digital form.
9. RAM is a ______ memory.
a) Permanent
b) Non-volatile
c) Volatile
d) Secondary
Ans: c
Explanation: Data is lost when power is off.
10. Which is secondary storage?
a) RAM
b) ROM
c) Cache
d) Hard Disk
Ans: d
Explanation: Stores data permanently.
11. Smallest unit of memory is:
a) Byte
b) Bit
c) KB
d) MB
Ans: b
Explanation: Bit is 0 or 1.
12. Which memory is fastest?
a) RAM
b) Hard Disk
c) Cache
d) ROM
Ans: c
Explanation: Cache is closest to CPU.
Software
13. Software is a set of:
a) Machines
b) Programs
c) Circuits
d) Devices
Ans: b
Explanation: Programs instruct hardware.
14. Windows is an example of:
a) Application software
b) System software
c) Utility software
d) Firmware
Ans: b
Explanation: Operating system controls system.
15. MS Excel is an example of:
a) System software
b) Application software
c) OS
d) Compiler
Ans: b
Explanation: Used by users for tasks.
16. Antivirus software is a type of:
a) Application software
b) Utility software
c) System software
d) Language translator
Ans: b
Explanation: Maintains system health.
17. Which software translates high-level language at once?
a) Interpreter
b) Assembler
c) Compiler
d) Loader
Ans: c
Explanation: Compiler translates entire program.
18. Interpreter translates:
a) Whole program
b) Line by line
c) Machine language
d) Assembly code
Ans: b
Explanation: Executes program step-by-step.
19. Assembler converts:
a) High-level to machine
b) Assembly to machine
c) Machine to high-level
d) Binary to decimal
Ans: b
Explanation: Used for assembly language.
Computer Languages
20. Machine language uses:
a) English
b) Symbols
c) Binary digits
d) Numbers
Ans: c
Explanation: Uses 0s and 1s.
21. Assembly language uses:
a) Binary
b) Mnemonics
c) English sentences
d) Flowcharts
Ans: b
Explanation: Uses symbolic codes.
22. C language belongs to:
a) 1GL
b) 2GL
c) 3GL
d) 4GL
Ans: c
Explanation: It is a high-level language.
23. SQL is an example of:
a) 2GL
b) 3GL
c) 4GL
d) 5GL
Ans: c
Explanation: Non-procedural language.
24. Which language is user-friendly?
a) Machine language
b) Assembly language
c) High-level language
d) Binary language
Ans: c
Explanation: Close to English.
25. Python is a:
a) Low-level language
b) High-level language
c) Machine language
d) Assembly language
Ans: b
Explanation: Easy and human-readable.
Generation of Computers
26. First generation computers used:
a) Transistors
b) ICs
c) Vacuum tubes
d) Microprocessors
Ans: c
Explanation: Used vacuum tubes.
27. Second generation computers used:
a) ICs
b) Vacuum tubes
c) Transistors
d) AI chips
Ans: c
Explanation: Transistors replaced tubes.
28. Third generation computers used:
a) Transistors
b) ICs
c) Valves
d) AI
Ans: b
Explanation: Integrated Circuits improved speed.
29. Fourth generation computers are based on:
a) ICs
b) Vacuum tubes
c) Microprocessors
d) Transistors
Ans: c
Explanation: Microprocessors enabled PCs.
30. Fifth generation computers focus on:
a) Speed only
b) Storage
c) Artificial Intelligence
d) Size reduction
Ans: c
Explanation: AI and machine learning.
31. ENIAC belongs to which generation?
a) First
b) Second
c) Third
d) Fourth
Ans: a
Explanation: Used vacuum tubes.
32. IBM 1401 is a ______ generation computer.
a) First
b) Second
c) Third
d) Fourth
Ans: b
Explanation: Used transistors.
Mixed Concept Questions
33. Which is NOT hardware?
a) Keyboard
b) Mouse
c) Windows
d) Monitor
Ans: c
Explanation: Windows is software.
34. Which is NOT software?
a) MS Word
b) Linux
c) Printer
d) Antivirus
Ans: c
Explanation: Printer is hardware.
35. Data processed by computer becomes:
a) Input
b) Output
c) Information
d) Program
Ans: c
Explanation: Processed data is information.
36. Which memory stores booting instructions?
a) RAM
b) Cache
c) ROM
d) Hard Disk
Ans: c
Explanation: ROM is non-volatile.
37. Which device prints large drawings?
a) Printer
b) Plotter
c) Scanner
d) Monitor
Ans: b
Explanation: Plotter prints graphics.
38. Which software is required to run a computer?
a) MS Word
b) Compiler
c) Operating System
d) Antivirus
Ans: c
Explanation: OS is essential.
39. Which is NOT a generation feature?
a) Technology used
b) Speed
c) Size
d) Brand name
Ans: d
Explanation: Brand is irrelevant.
40. Computer cannot do which task?
a) Calculation
b) Storage
c) Decision on its own
d) Processing
Ans: c
Explanation: No independent thinking.
41. 1 KB equals:
a) 1000 bytes
b) 1024 bytes
c) 512 bytes
d) 2048 bytes
Ans: b
Explanation: Binary measurement.
42. Which memory is permanent?
a) RAM
b) Cache
c) ROM
d) Register
Ans: c
Explanation: ROM retains data.
43. Which software detects viruses?
a) OS
b) Compiler
c) Antivirus
d) Assembler
Ans: c
Explanation: Protects system.
44. Translator programs include:
a) Compiler only
b) Interpreter only
c) Compiler, Interpreter, Assembler
d) Loader only
Ans: c
Explanation: All convert languages.
45. Which generation introduced PCs?
a) First
b) Second
c) Third
d) Fourth
Ans: d
Explanation: Microprocessors enabled PCs.
46. Which language is machine dependent?
a) Python
b) Java
c) Assembly
d) SQL
Ans: c
Explanation: Depends on hardware.
47. Which storage device is portable?
a) Hard Disk
b) Pen Drive
c) ROM
d) Cache
Ans: b
Explanation: Easy to carry.
48. Which computer works on continuous data?
a) Digital
b) Hybrid
c) Analog
d) Super
Ans: c
Explanation: Uses continuous signals.
49. Hybrid computer is a combination of:
a) Analog & Digital
b) Hardware & Software
c) Input & Output
d) RAM & ROM
Ans: a
Explanation: Combines both features.
50. The main purpose of computer is to:
a) Store data
b) Type documents
c) Process data into information
d) Print output
Ans: c
Explanation: Core function of computer.
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