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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