Computer Science Basic MCQs - Set 1

1)   Mostly which of the following device is used to carry user files?

a. Floppy Disk
b. Hard Disk
c. RAM
d. CDROM
Answer  Explanation 

ANSWER: Floppy Disk

Explanation:
No explanation is available for this question!


2)   Which device is used to backup the data?

a. Floppy Disk
b. Tape
c. Network Drive.
d. All of the above
Answer  Explanation 

ANSWER: All of the above

Explanation:
No explanation is available for this question!


3)   In order to play and hear sound on a computer, one needs:

a. a sound card and speakers
b. a microphone
c. all of them required
d. none of them required
Answer  Explanation 

ANSWER: a sound card and speakers

Explanation:
No explanation is available for this question!


4)   Which of the following are the cheapest memory devices in terms of Cost/Bit?

a. Semiconductor memories
b. Magnetic Disks
c. Compact Disks
d. Magnetic Tapes
Answer  Explanation 

ANSWER: Compact Disks

Explanation:
No explanation is available for this question!


5)   Which of the following are the best units of data on an external storage device?

a. Bits
b. Bytes
c. Hertz
d. Clock cycles
Answer  Explanation 

ANSWER: Bytes

Explanation:
No explanation is available for this question!


6)   Which of the following have the fastest access time?

a. Semiconductor Memories
b. Magnetic Disks
c. Magnetic Tapes
d. Compact Disks
Answer  Explanation 

ANSWER: Semiconductor Memories

Explanation:
No explanation is available for this question!


7)   Which of the following is a read only memory storage device?

a. Floppy Disk
b. CDROM
c. Hard Disk
d. None of these
Answer  Explanation 

ANSWER: CDROM

Explanation:
No explanation is available for this question!


8)   Which of the following is a programming language?

a. Lotus
b. Pascal
c. MS-Excel
d. Netscape
Answer  Explanation 

ANSWER: Pascal

Explanation:
No explanation is available for this question!


9)   What is a compiler?

a. A compiler does a conversion line by line as the program is run
b. A compiler converts the whole of a higher level program code into machine code in one step
c. A compiler is a general purpose language providing very efficient execution
d. None of the above
Answer  Explanation 

ANSWER: A compiler converts the whole of a higher level program code into machine code in one step

Explanation:
No explanation is available for this question!


10)   What is an interpreter?

a. An interpreter does the conversion line by line as the program is run
b. An interpreter is the representation of the system being designed
c. An interpreter is a general purpose language providing very efficient execution
d. None of the above
Answer  Explanation 

ANSWER: An interpreter is the representation of the system being designed

Explanation:
No explanation is available for this question!


11)   When a key is pressed on the keyboard, which standard is used for converting the keystroke into the corresponding bits?

a. ANSI
b. ASCII
c. EBCDIC
d. ISO
Answer  Explanation 

ANSWER: ANSI

Explanation:
No explanation is available for this question!


12)   A Pixel is ………

a. A computer program that draws picture
b. A picture stored in secondary memory
c. The smallest resolvable part of a picture
d. None of these
Answer  Explanation 

ANSWER: The smallest resolvable part of a picture

Explanation:
No explanation is available for this question!


13)   Which device is used as the standard pointing device in a Graphical User Environment?

a. Keyboard
b. Mouse
c. Joystick
d. Track ball
Answer  Explanation 

ANSWER: Mouse

Explanation:
No explanation is available for this question!


14)   Which number system is usually followed in a typical 32-bit computer?

a. 2
b. 10
c. 16
d. 32
Answer  Explanation 

ANSWER: 2

Explanation:
No explanation is available for this question!


15)   Which number system is usually followed in a typical 32-bit computer?

a. Binary
b. Decimal
c. Hexadecimal
d. Octal
Answer  Explanation 

ANSWER: Binary

Explanation:
No explanation is available for this question!


16)   Which of the following is not an output device?

a. Scanner
b. Printer
c. Flat Screen
d. Touch Screen
Answer  Explanation 

ANSWER: Touch Screen

Explanation:
No explanation is available for this question!


17)   Which of the following devices have a limitation that we can only store information to it but cannot erase or modify it?

a. Floppy Disk
b. Hard Disk
c. Tape Drive
d. CDROM
Answer  Explanation 

ANSWER: CDROM

Explanation:
No explanation is available for this question!


18)   Which technology is used in Compact disks?

a. Mechanical
b. Electrical
c. Electro Magnetic
d. Laser
Answer  Explanation 

ANSWER: Laser

Explanation:
No explanation is available for this question!


19)   Which of the following storage devices can store maximum amount of data?

a. Floppy Disk
b. Hard Disk
c. Compact Disk
d. Magneto Optic Disk
Answer  Explanation 

ANSWER: Hard Disk

Explanation:
No explanation is available for this question!


20)   Which of the following is the largest manufacturer of Hard Disk Drives?

a. IBM
b. Seagate
c. Microsoft
d. 3M
Answer  Explanation 

ANSWER: Seagate

Explanation:
No explanation is available for this question!