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Computer for Competitive exams- MCQs

1. Which of the following are computers that are known as number crunchers?

1. Palmtop computers

2. Micro computers

3. Macro computers

4. Super computers

5. Mainframe computers

Answer– “4”

2. How many bits equal one byte?

1. 2

2. 4

3. 8

4. 16

5. 32

Answer– “3”

3. USB is a common interface that enables communication between devices and a

host controller such as personal computer (PC). ‘S’ in USB stands for?

1. Simple

2. Series

3. Serial

4. Specification

5. Sorted

Answer– “3”

4. What is the extension of MS Dos command file?

1 .tmp

2 .bin

3 .dbf

4 .com

5. .doc

Answer– “4”

5. WORM is a data storage technology that prevents the drive from erasing the

data. What is the full form of WORM?

1. Write Out, Read Many

2. Write Once, Read More

3. Write Once, Read Much

4. Write Over, Read Mode

5. Write Once, Read Many

Answer– “5”

6. Which one of the following software applications would be the most

appropriate for performing numerical and statistical calculations?

1. Database

2. Spreadsheets

3. Graphics Package

4. Document Processor

5. Slide Presentation

Answer– “2”

7. Which among the following is not an input device?

1. Light pen

2. Plotter

3. Track ball

4. Microphone

5. Keyboard

Answer– “2”

8. Which of the following technologies were used by third-generation computers?

1. Transistors

2. Integrated circuits

3. Vacuum tubes

4. VLSI

5. Semiconductor

Answer– “2”

9. Which of the following is a correct hierarchy?

1. Byte<KB<MB<GB<TB<XB<PB<ZB<YB

2. Byte<KB<MB<GB <TB<PB<XB<ZB<YB

3. Byte<KB<MB<GB<TB<XB<YB<ZB<PB

4. Byte<KB<MB<GB<TB<YB<PB<ZB<XB

5. None of the above

Answer– “2”

10. Which among the following language can be read like regular English?

1. PASCAL

2. COBOL

3. C

4. PROLOG

5. BASIC

Answer– “2”

11. Which one of the following software applications would be the most

appropriate for performing numerical and statistical calculations?

1. Database

2. Spreadsheets

3. Graphics Package

4. Document Processor

5. Slide Presentation

Answer– “2”

12. In context of Machine Language, which of the following statements is not

correct?

1. It consists of only binary digits or bits

2. It cannot be directly understood by the computer & need a translator

program

3. It is also called the machine code

4. Debugging is an issue attached to it

5. None of the above

Answer– “2’

13. Whenever the text in a document moves to a new page, it is known as

1. Page layout

2. Page break

3. Page access

4. Page facility

5. Page indent

Answer– “2”

14. Who among the following is known as father of Internet?

1. Adlof Garrifield

2. Tim Berners Lee

3. Adder Tiff

4. Douglas Engelbart

5. Vint Cerf

Answer– “5”

15. In which of the following topology, each device is connected to every other

device on a network through a dedicated point-to-point link?

1. Star topology

2. Mesh topology

3. Hybrid topology

4. Bus topology

5. Ring topology

Answer– “2”

16. Which of the following enters computer through an email or free programs

that have been downloaded from the internet and cause plenty of damage?

1. Time bomb

2. Trojan horse

3. Worm

4. Both 1 & 2

5. Virus

Answer– “2”

17. What is the new default document name in MS Word?

1. NewDocument

2. 1Document

3. NewDoc

4. DocumentNew

5. Document1

Answer– “5”

18. In Windows computer, the deleted files are transferred to

1. Trash bin

2. Span

3. Junk

4. Recycle bin

5. Spam

Answer– “4”

19. C, BASIC, COBOL, and Java are examples of __________________ languages.

1. Assembly level

2. Low level

3. High level

4. Computer logic

5. Machine Language

Answer– “3”

20. The errors that can be pointed out by the compiler are

1. Semantic errors

2. Memory Allocation errors

3. Logical errors

4. Syntax errors

5. Runtime errors

Answer– “4”

21. The first computer mouse was built by

1. Daniel Cougher

2. Vint Cerf

3. Robert Zawecki

4. William English

5. Douglas Engelbart

Answer– “5”

22. Which of the devices converts drawing, printed text or other images into

digital form?

1. Keyboard

2. Scanner

3. Plotter

4. OMR

5. Photocopier

Answer– “2”

23. Which of these companies own the search engine Bing?

1. Google

2. Microsoft

3. Amazon

4. IBM

5. Yahoo

Answer– “2”

24. Which menu option is used to add Header and Footer in a document?

1. File

2. Review

3. References

4. Insert

5. Mailings

Answer– “4”

25. What do we call the pictorial representation that uses predefined symbols to

describe either the logic of a computer program or the data flow and

processing steps of a system?

1. Flowchart

2. Algorithm

3. Block diagram

4. Loop

5. Array

Answer– “1”

26. Which among the following is a device, that is used in computers to add

external components?

1. Storage Device such as USB

2. Keyboard

3. Ports / System Boards

4. RAM

5. ROM

Answer– “3”

27. Which among the following is the most common source of Viruses to the hard

disk of your computer?

1. Incoming Email

2. Outgoing Email

3. CD-ROM

4. Websites

5. Web Pages

Answer– “1”

28. Which among the following is used for removing a software bug / defect

which is available for free of cost from the software provider?

1. Version

2. Update

3. Help

4. Patch

5. Upgrade

Answer– “4”

Top 200 Computer Awareness Questions Free e-book

29. Which of the following Key is not found in normal computers / laptops?

1. turn

2. alt

3. del

4. Shift

5. ctrl

Answer– “1”

30. Structured programming languages such as C, COBOL and FORTRAN were used

in which of the following computers?

1. First Generation Computers

2. Second Generation Computers

3. Third Generation Computers

4. Fourth Generation Computers

5. Fifth Generation Computers

Answer– “3”

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