1000+ basic to advance Computer Fundamental MCQ Part :2

1. Which of the following are physical devices of a computer?

A

Hardware

B

Software

C

System Software

D

Package

Answer:

The correct option is A.

Note
Description: Hardware refers to the physical devices of a computer system. Software refers to a collection of programs. A program is a sequence of instructions

2. Which of the following are the input devices that enable direct data entry into a computer system from source documents?

A

System Access devices

B

Data acquiring devices

C

Data retrieving devices

D

Data Scanning devices

Answer:

The correct option is D.

Note
Description: They are referred to as data scanning devices. They eliminate the need to key in text data into the computer. It demands the high quality of input documents.

3. Which of the following is known as the language made up of binary-coded instructions?

A

High level

B

BASIC

C

C

D

Machine

Answer:

The correct option is D.

Note
Description: The language made up of binary-coded instructions built into the hardware of a particular computer and used directly by the computer is machine language.

4. Which of the following is not a type of computer on the basis of operation?

A

Digital

B

Analog

C

Hybrid

D

Remote

Answer:

The correct option is D.

Note
Description: There are three types of computers basically on the basis of operation: Analog, Digital, and Hybrid

5. What is smallest unit of the information?

A

A bit

B

A byte

C

A block

D

A nibble

Answer:

The correct option is A.

Note
Description: The smallest unit of the information is a bit. All information is stored in the computer as bits

6. Which of the following is an output device?

A

Keyboard

B

Mouse

C

Light pen

D

VDU

Answer:

The correct option is D.

Note
Description: The full form of VDU is the Visual Display Unit. It is a hardware output device that uses a cathode ray tube to display a visual image

7. Which of the following is an input device?

A

Plotter

B

Printer

C

VDU

D

Mouse

Answer:

The correct option is D.

Note
Description: A mouse is a hardware input device that controls a cursor on a computer. With the help of the mouse, you can select, open, and move files, icons, folders, and text on the PC.

8.Which of the following is the extension of Notepad?

A

.txt

B

.xls

C

.ppt

D

.bmp

Answer:

The correct option is A.

Note
Description: The .txt file extension is a standard text document extension that contains the unformatted text. It is the default file extension for the notepad.

9. Which of the following computers are lower than mainframe computers in terms of speed and storage capacity?

A

Mainframes

B

Hybrid

C

Mini

D

Super

Answer:

The correct option is C.

Note
Description: The answer is a. Mini computers are compared to mainframe computers in terms of: 1. speed and, 2. storage capacity.

10. Which of the following is created when a user opens an account in the computer system?

A

SFD

B

MFD

C

Subdirectory

D

RFD

Answer:

The correct option is C.

Note
Description: A subdirectory is created when a user opens an account in the computer system. It is treated as a file, though flagged in MFD as a subdirectory.

11. Which of the following is the device used for converting maps, pictures, and drawings into digital form for storage in computers?

A

Image Scanner

B

Digitizer

C

MICR

D

Scanner

Answer:

The correct option is B.

Note
Description: A digitizer serves the purpose given in the question. Digitizers are generally used in the area of Computer-Aided Design by architects and engineers to design cars, buildings, etc.

12. Which of the following defines the assigned ordering among the characters used by the computer?

A

Accumulation

B

Sorting

C

Collating Sequence

D

Unicode

Answer:

The correct option is C .

Note
Description: Collating sequence is the term used for ordering among characters. It may vary depending upon the type of code used by a computer.

13. Which of the following is the brain of the computer?

A

Central Processing Unit

B

Memory

C

Arithmetic and Logic unit

D

Control unit

Answer:

The correct option is A.

Note
Description: The CPU is referred to as the brain of a computer. It consists of a control unit and an arithmetic and logic unit. It is responsible for performing all the processes and operations.

14. Which of the following is not a characteristic of a computer?

A

Versatility

B

Accuracy

C

Diligence

D

I.Q.

Answer:

The correct option is D.

Note
Description: The Computer system has no I.Q. of its own. It does only what it is programmed to do. It cannot take decisions of its own. A computer is diligent because it can work continuously for hours without getting any errors or without getting grumbled. The accuracy of a computer is consistently high and its level of accuracy depends on its design. A computer can perform any task if, it can be broken down into a series of logical steps. Therefore, a computer is versatile.

15. Which of the following unit is responsible for converting the data received from the user into a computer understandable format?

A

Output Unit

B

Input Unit

C

Memory Unit

D

Arithmetic and Logic Unit

Answer:

The correct option is B.

Note
Description: The Input Unit converts the data, which the user enters into a language that the computer understands, i.e. it converts the data into binary format. The Output Unit is responsible for giving the results in a user-understandable format. The Storage Unit is responsible for storing the data after immediate results of processing whereas; the ALU is responsible for various arithmetic and bitwise operations.

16. Which of the following is designed to control the operations of a computer?

A

User

B

Application Software

C

System Software

D

Utility Software

Answer:

The correct option is C.

Note
Description: Software is basically classified into two: System and application. System Software is designed to control the operations and extend the processing capability of a computer system.

17. Which of the following device use positional notation to represent a decimal number?

A

Pascaline

B

Abacus

C

Computer

D

Calculator

Answer:

The correct option is B.

Note
Description: Abacus was used to do arithmetic calculations around 2500 years ago. Pascaline was the pascal’s calculator by Blaise Pascal invented for doing laborious calculations.

18. What is the full form of CPU?

A

Computer Processing Unit

B

Computer Principle Unit

C

Central Processing Unit

D

Control Processing Unit

Answer:

The correct option is C.

Note
Description: CPU stands for Central Processing Unit. CPU is the part of a computer system that is mainly referred as the brain of the computer.

19. A hard disk drive can be directly connected to a PC via a _____.

A

SCSI interface

B

Parallel interface

C

WAN interface

D

USB interface

Answer:

The correct option is A.

Note
Description: A hard disk drive can be directly connected to a PC via a SCSI interface. SCSI is a group of protocols that send the data between computers and external devices in a physical manner

20. Which one of the following is not input device?

A

Keyboard

B

Mouse

C

Speaker

D

Scanner

Answer:

The correct option is C.

Note
Description: Speaker is a hardware output device that is used for listening to audio by connecting it to a computer and other devices. The computer's sound card produces sound waves from the speaker