30 Most important MCQs of Computer - Worldbioco.com

A list of popular significant issues on fundamental computer understanding in MCQ quiz style with answers for competitive examinations and interviews can be found here. These frequently asked sample computer questions are provided with the right response selection that you can immediately verify.
30 Most important MCQs of Computer - Worldbioco.com
MCQs of Computer
1. Any computer system's brain is

A. ALU
B. Memory
C. CPU
D. Control unit


2. Which unit is used for data backup?

A. Floppy Disk
B. Tape
C. Network Drive.
D. All of the above


3. CD-ROM stands for____________?

A. Compactable Read Only Memory
B. Compact Data Read Only Memory
C. Compactable Disk Read Only Memory
D. Compact Disk Read Only Memory


4. ALU is___________?

A. Arithmetic Logic Unit
B. Array Logic Unit
C. Application Logic Unit
D. None of the above


5. WAN stands for____________?

A. Wap Area Network
B. Wide Area Network
C. Wide Array Net
D. Wireless Area Network


6. A CPU contains___________?

A. A card reader and a printing device
B. An analytical engine and a control unit
C. A control unit and an arithmetic logic unit
D. An arithmetic logic unit and a card reader


7. The first computers have been programmed using___________?

A. Assembly language
B. Machine language
C. Source code
D. Object code


8. The printed output is called from a computer_____

A.Copy
B.Soft Copy
C.Hard Copy
D.Paper


9. How many menus in the windows have a calculator

A. Three
B. Five
C. Four
D. Two


10. Which of the following displays has the greatest resolution color graphics

A. HCA
B. EGA
C. CGA
D. VGA


11. What is a compiler? 

A. A compiler does conversion line by line as the program is run
B. A compiler is a general-purpose language providing very efficiently execution
C. A compiler converts the whole of higher-level program code into machine code in 1 step
D. None of the above


12. During the development of first-generation computers

A. 1940 – 1956
B. 1956 – 1963
C. 1964 – 1971
D. None of these


13.CPU is an example of _______

A. Software
B. A program
C. An output unit
D. Hardware


14. What is a cookie?

A. Hacker File
B. Customary file
C. Internet Information file
D. None of these


15. To open the view menu which of the following shortcut key is used in the term menu bar

A. Alt+E
B. Alt+V
C. Alt+W
D. Alt+I


16. Which of the following is a tool for both input and output?

A. Keyboard
B. Mouse
C. Modem
D. Scanner


17. One MB is equal to?

A. 1024 kb
B. 1000 kb
C. 1024 bytes
D. None of these


18. Which of the following is the programming language for machine independence?

A. Low-level language
B. Assembly language
C. High-Level Language
D. None of These


19. The keyboard is a ____ device:

A. Input
B. Output
C. Both a & b
D. None of these


20. Computer Monitor is a ____ device

A. Output
B. Input
C. both a and b
D. None of these


21. LCD Stand for___

A. liquid crystal display
B. Local Change Directory
C. Liquid Crytal Display
D. None of these


22. Which computer memory is used to store programs and information presently being processed by the CPU?

A. Internal Memory
B. External Memory
C. EPROM
D.  None of these


23. Which memory component is probable to be overtaxed when your computer speed starts to fall?

A. LAN
B. RAM
C. BIOS
D. None of these


24. What is software?

A. A set of instructions
B. Set of programs
C. Set of information
D. None of these


25. A Pixel is? 

A. A computer program that draws a picture
B. A picture stored in secondary memory
C. The smallest resolvable part of a picture
D. None of these


26. Which is a volatile memory? 

A. ROM
B. BIOS
C. PROM
D. RAM

27. Who is the father of the Computer?

A. Allen Turing
B. Charles Babbage
C. Timur Cray
D. Augusta Adams


28. WWW stands for___________?

A. World Whole Web
B. Wide World Web
C. Web World Wide
D. World Wide Web


29. In compact disks, which technology is used?

A. Mechanical
B. Electrical
C. Electro Magnetic
D. Laser


30. The computer that processes both digital and analog is called___________?

A.Analog computer
B.Digital computer
C. Hybrid computer
D.Mainframe computer

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