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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