CBSE Class 11 Computer Chapter 1 MCQ

BOARD: CBSE

CLASS: XI

SUBJECT: (Theory) C++

CHAPTER: COMPUTER FUNDAMENTRAL

1. Which of the following is not an Operating System?

a) Windows

b) Android

c) Microsoft

d) Unix

Correct answer-           c)

Explanation- Microsoft is a company.

2. What is the full form of BOSS.

a) Bharat Operating System Support

b) Bharat Operating System Solutions

c) Bharat Organization System Server

d) Bharat Operating System Solutions

Correct answer-           d)

Explanation- BOSS stands for Bharat Operating System Solutions.

3. The smallest unit for storage in computer is ____.

a) bit

b) byte

c) kb

d) gb

Correct answer-           a)

Explanation- Bit can be either 0 or 1.

4. Which of the following is fastest memory?

a) RAM

b) ROM

c) Cache

d) CPU

Correct answer-           c)

Explanation- Cache is the fastest memory.

5. The first adding machine invented by _____.

a) John Napier

b) Blaise Pascal

c) Gottfried Leibnitz

d) Joseph Jaquard

Correct answer-           b)

Explanation- Blaise Pascal, a French mathematician invented an adding machine in 1642.

6. The computers can be classified based on the technology being used are ___.

a) 1

b) 2

c) 3

d) 4

Correct answer-           c)

Explanation- The computers can be classified based on the technology being used as: Digital, Analog and Hybrid.

7. Which of the following is fastest computer?

a) Micro

b) Mini

c) Mainframe

d) Super

Correct answer-           d)

Explanation- Super computers are fastest and very expensive computers.

8. Micro computers are also known as ____.

a) Private Computers

b) Personal Computers

c) New Computers

d) Hybrid Computers

Correct answer-           b)

Explanation- It is used to do a personal or individual work.

9. ____ refers to try the software before buying it.

a) Freeware

b) Opensource

c) Shareware

d) All of above

Correct answer-           c)

Explanation- Sharewares give users a chance to try the software before buying it.

10. Which of the following is a Mobile Operating System?

a) Android

b) IOS

c) Symbian

d) All of the above

Correct answer-           d)

Explanation-

11. Computer understands ___ number system.

a) Octal

b) Decimal

c) Binary

d) Hexa

Correct answer-           c)

Explanation- Computer is a machine and it work on 0 & 1.

12. ENIAC Stands for ____.

a) Electronic Numerical Input and Calculator

b) Electronic Numerical Integrator and Computer

c) Electronic Numerical Input and Computer

d) Electronic Numerical Integrator and Calculator

Correct answer-           d)

Explanation- ENIAC Stands for Electronic Numerical Integrator and Calculator.

13. A _____ is a delicate glass device that can control and amplify electronic signals.

a) Vacuum tube

b) Transistor

c) Capacitor

d) IC

Correct answer-           a)

Explanation- The first generation computers used the concept of ‘stored program’ and were characterized by vacuum tubes. A vacuum tube is a delicate glass device that can control and amplify electronic signals.

14. Which of the following is not a programming language?

a) FORTRAN

b) COBOL

c) Algol

d) Flowchart

Correct answer-           d)

Explanation- A flowchart is a type of diagram that represents an algorithm, workflow or process.

15. Which of the following is a Secondary storage device?

a) RAM

b) ROM

c) Hard disk

d) CPU

Correct answer-           c)

Explanation-RAM and ROM is primary storage device.

16. Which of the following is not an input device?

a) Key Board

b) Monitor

c) Mouse

d) Scanner

Correct answer-           b)

Explanation- Monitor is an output device.

17. Which of the following is a type of bus?

a) Address

b) Data

c) Control

d) All of above

Correct answer-           d)

Explanation- All three are bus. A bus is a transmission path (set of conducting wires) over which data or information in the form of electric signals, is passed from one component to another in a computer.

18. The BIOS conducts a series of self diagnostic tests called ____.

a) Starting Computer

b) Power On Self Test

c) Power On

d) Switch On

Correct answer-           b)

Explanation- POST tests include memory tests, configuring and starting video circuitry, configuring the system’s hardware and checking other devices that help to function the computer properly.

19. Punch Card is invented by _____.

a) John Napier

b) Blaise Pascal

c) Gottfried Leibnitz

d) Joseph Jaquard

Correct answer-           d)

Explanation-. Joseph Jaquard invented punch card in 1801.

20. Which of the following is a function of OS?

a) Memory Management

b) File Management

c) Device Management

d) All of the above

Correct answer-           d)

Explanation- Processor Management, Memory Management, File Management and Device Management are functions of OS.

21. ____ scans the entire program and translates it as a whole into machine code.

a) Compiler

b) Interpreter

c) Assembler

d) None of these

Correct answer-           a)

Explanation- Compiler scans the entire program and translates it as a whole into machine code.

22. Reduction of the storage space required for data by changing its format is known as ____.

a) Software

b) Memory

c) Compression

d) Virus

Correct answer-           c)

Explanation- It is used to reduce the file size and for faster file transmission.

23. A ____is a small program that can spread from one computer system to another and cause interferences with computer operations.

a) software

b) virus

c) application

d) operating system

Correct answer-           b)

Explanation- A virus is a small program that can spread from one computer system to another and cause interferences with computer operations.

24. How many types of Booting process?

a) 0

b) 1

c) 2

d) 3

Correct answer-           c)

Explanation- Booting Process is of two types – Warm and Cold

25. Who is known as father of modern computers?

a) John Napier

b) Blaise Pascal

c) Charles Babbage

d) Bill Gates

Correct answer-           c)

Explanation- Difference Engine and Analytical Engine, both these great inventions earned him the title of ‘Father of Modern Computers’.

26. What you get after processing data?

a) File

b) Information

c) Output

d) None of above

Correct answer-           b)

Explanation- After processing a data we get information. So information is known as processed data.

27. The time period for third generation’s computer is ____.

a) 1942-1955

b) 1955-1964

c) 1964-1975

d) 1975-1985

Correct answer-           c)

Explanation- third generation’s computers are made up with IC.

28. Prof Howard Aiken in collaboration with IBM constructed an electromechanical computer named ____.

a) Pascal

b) UNIVAC

c) ENIAC

d) Mark 1

Correct answer-           d)

Explanation- In 1944 Prof Howard Aiken in collaboration with IBM constructed an electromechanical computer named Mark 1 which could multiply two 10 digit numbers in 5 seconds.

29. Who improve Pascal machine to perform multiplication and division as well.

a) Charles Babbage

b) Gottfried Leibnitz

c) Bill Gates

d) John Napier

Correct answer-           b)

Explanation- In 1673 Gottfried Leibnitz, a German mathematician extended the capabilities of the adding machine invented by Pascal to perform multiplication and division as well.

30. Who proposed the concept of a stored program in computer?

a) Dr. John Von Neumann

b) Blaise Pascal

c) Charles Babbage

d) Bill Gates

Correct answer-           a)

Explanation- In 1945, Dr. John Von Neumann proposed the concept of a stored program computer.