Computer Concepts MCQ [PDF] Basic Questions and Answers

Computer Concepts MCQ. Introduction to Concepts of Computer system Basic Questions and answers with pdf for all competitive exams. Useful for MCA entrance exam, SBI Clerk & PO, All Banks Probationary & Specialist officers, clerk, SSC, Railway, UPSC, State PCS, LIC, GIC, B.Ed, etc.

Computer Concepts MCQ

1. Which of the following is NOT one of the four major data processing functions of a computer?

a) gathering data

b) processing data into information

c) analyzing the data or information

d) storing the data or information

Ans. c

2. Surgeons can perform delicate operations by manipulating device through computers instead of manually. This technology is known as:

a) robotics

b) computer forensics

c) simulation

d) forecasting

Ans. a

3. In analog computer

a) Input is first converted to digital form

b) Input is never converted to digital form

c) Output is displayed in digital form

d) All of above

Ans. b

4. In latest generation computers, the instructions are executed

a) Parallel only

b) Sequentially only

c) Both sequentially and Parallel

d) All of above

Ans. c

5. Modern computer are very reliable but they are not

a) Fast

b) Powerful

c) Infallible

d) Cheap

Ans. c

6. A computer which CPU speed around 100 million instruction per second and with the word length of around 64 bits is known as

a) Super computer

b) Mini computer

c) Micro computer

d) Macro computer

Ans. a

7. The storage subsystem in a microcomputer consists mainly of ___ or ___ media with varying capacities.

a) Memory or video

b) Magnetic or Optical

c) Optical or Memory

d) Video or magnetic

Ans. b

8. The personal computer industry was started by

a) IBM

b) Apple

c) Compaq

d) HCL

Ans. a

9. Which was the most popular first generation computer?

a) IBM 1650

b) IBM 360

c) IBM 1130

d) IBM 650

Ans. d

10. One millisecond is

a) 10 seconds

b) 100 seconds

c) 1000 seconds

d) 1/1000 seconds

Ans. d

11. Number crunchier is the informal name for

a) Mini computer

b) Super computer

c) Microcomputer

d) Mainframe computer

Ans. b

12. Which company is the biggest player in the microprocessor industry?

a) Motorola

b) IBM

c) Intel

d) AMD

Ans. c

13. Symbolic logic was discovered by

a) George Boole

b) Herman Hollerith

c) Blaise pascal

d) none of these

Ans. a

14. Computer operators

a) writes computer programs for specific problems

b) operate the device which input and output data from the computer

c) normally require a college degree in computer science

d) all of the above

Ans. b

15. The first electronic computer in the world was




d) All of above

Ans. c

16. Which was the computer conceived by Babbage ?

a) Analytical engine

b) Arithmetic machine

c) Donald knuth

d) All of these

Ans. a

17. Offline device is

a) A device which is not connected to CPU

b) A device which is connected to CPU

c) A direct access storage device

d) An I/O device

Ans. a

18. Microprocessors can be used to make

a) computer

b) Digital systems

c) Calculators

d) All of the above

Ans. d

19. Which American computer company is called Big blue?

a) IBM

b) Compaq Corp

c) Tandy Sevenson

d) None of these

Ans. a

20. The digital computer was developed primarily in


b) Japan

c) USA

d) UK

Ans. c

21. The subject of cybernetics deals with the science of

a) Genetics

b) Control and communications

c) Molecular biology

d) Biochemistry

Ans. b

22. Most of the inexpensive personal computer does not have any disk or diskette drive, What is the name of such computers?

a) Home computers

b) Diskless computers

c) Dedicated computer

d) General computer

Ans. a

23. Which of the following required large computer memory?

a) Imaging

b) Graphics

c) Voice

d) All of above

Ans. d

24. A term associated with the comparison of processing speeds of different computer system is:


b) MPG



Ans. c

25. One computer that is not considered a portable computer is

a) Minicomputer

b) A laptop computer

c) Micro computer

d) All of the above

Ans. a

26. When was the world’s first laptop computer introduced in the market and by whom?

a) Hewlett-Peckard

b) Epson, 1981

c) Laplink traveling software inc. 1982

d) Tandy model-2000, 1985

Ans. b

27. The first microprocessor built by the Intel Corporation was called

a) 8008

b) 8080

c) 4004

d) 8800

Ans. c

28. Who built the world’s first electronic calculator using telephone relays, light bulbs and batteries.

a) Claude Shannon

b) Konrard Zues

c) George Stibits

d) Howard H. Aiken

Ans. c

29. IBM 7000 digital computer

a) Belongs to second generation

b) Uses VLSI

c) Employs semi conductor memory

d) Has modular constructions

Ans. d

30. In the third generation of computers

a) Distributed data processing first became popular

b) An operating system was first developed

c) High level procedural language were first used

d) Online real time systems first become popular

Ans. d

31. A digital computer did not score over an analog computer in terms of

a) Speed

b) Accuracy

c) Reliability

d) Cost

Ans. b

32. The proper definition of a modern digital computer is

a) An electronic automated machine that can solve problems involving words and numbers

b) A more sophistic and modified electronic pocket calculator

c) Any machine that can perform mathematical operations

d) A machine that works on binary code

Ans. d

33. A modern electronic computer is a machine that is meant for

a) Doing quick mathematical calculations

b) Input, storage, manipulation and outputting of data

c) Electronic data processing

d) Performing repetitive tasks accurately

Ans. b

34. Most important advantage of an IC is its

a) Easy replacement in case of circuit failure

b) Extremely high reliability

c) Reduced cost

d) Lower Power Consumption

Ans. b

35. Where was india’s first computer installed and when ?

a) Indian institute of Technology, Delhi, 1977

b) Indian Institute of Science, Bangalore, 1971

c) Indian Iron & Steel Co. Ltd., 1968

d) Indian Statistical Institute, Calcutta, 1955

Ans. d

36. Chief component of first generation computer was

a) Transistors

b) Vacuum Tubes and valves

c) Integrated Circuits

d) None of above

Ans. b

37. Second Generation computers were developed during

a) 1949 to 1955

b) 1956 to 1965

c) 1965 to 1970

d) 1970 to 1990

Ans. b

38. The computer size was very large in

a) First Generation

b) Second Generation

c) Third Generation

d) Fourth Generation

Ans. a

39. Microprocessors as switching devices are for which generation computers

a) First Generation

b) Second Generation

c) Third Generation

d) Fourth Generation

Ans. d

40. Artificial Intelligence is associated with which generation?

a) First Generation

b) Second Generation

c) Third Generation

d) Fifth Generation

Ans. d

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