Computer MCQ 3

1. The ALU of a computer responds to the commands coming from?

a. Primary memory

b. Control section

c. External memory

d. Cache memory


2. The act of retrieving existing data from memory is called?

a. Read-out

b. Read from

c. Read

d. All of above


3. All modern computer operate on?

a. Information

b. Floppies

c. Data

d. Word


4. Instructions and memory address are represented by?

a. Character code

b. Binary codes

c. Binary word

d. Parity bit



5. Which of the following code used in present day computing was developed by IBM Corporation?

a. ASCII

b. Hollerith Code

c. Baudot Code

d. EBCDIC Code


6. What is the latest write-once optical storage media?

a. Digital paper

b. Magneto-optical disk

c. WORM disk

d. CD-ROM disk


7. The most important advantage of a video disk is?

a. Compactness

b. Potential capacity

c. Durability

d. Cost effectiveness


8. What is the number of read-write heads in the drive for a 9-trac magnetic tape?

a. 9

b. 16

c. 18

d. 27


9. Before a disk drive can access any sector record, a computer program has to provide the record’s disk address. What information does this address specify?

a. Track number

b. Sector number

c. Surface number

d. All of above


10. As compared to diskettes, the hard disks are?

a. More expensive

b. More portable

c. Less rigid

d. Slowly accessed


11. Floppy disks which are made from flexible plastic material are also called?

a. Hard disks

b. High-density disks

c. Diskettes

d. Templates


12. Regarding a VDU, Which statement is more correct?

a. It is an output device

b. It is an input device

c. It is a peripheral device

d. It is hardware item


13. What is the name of the computer terminal which gives paper printout?

a. Display screen

b. Soft copy terminal

c. Hard copy terminal

d. Plotter


14. Dot-matrix is a type of?

a. Tape

e. Printer

f. Disk

g. Bus


15. The two kinds of main memory are:

a. Primary and secondary

b. Random and sequential

c. ROM and RAM

d. All of above


16. A kind of serial dot-matrix printer that forms characters with magnetically-charged ink sprayed dots is called?

a. Laser printer

b. Ink-jet printer

c. Drum printer

d. Chan printer


17. Which printer is very commonly used for desktop publishing?

a. Laser printer

b. Inkjet printer

c. Daisywheel printer

d. Dot matrix printer


18. An output device that uses words or messages recorded on a magnetic medium to produce audio response is?

b. Magnetic tape

c. Voice response unit

d. Voice recognition unit


19. Which of the following will happen when data is entered into a memory location?

a. It will add to the content of the location

b. It will change the address of the memory location

c. It will erase the previous content

d. It will not be fruitful if there is already some data at the location


20. A storage area used to store data to a compensate for the difference in speed at which the different units can handle data is?

a. Memory

b. Buffer

c. Accumulator

d. Address



1. b. Control section

2. d. All of above

3. c. Data

4. b. Binary codes

5. d. EBCDIC Code

6. d. CD-ROM disk

7. b. Potential capacity

8. a. 9

9. d. All of above

10.a. More expensive

11. c. Diskettes

12.c. It is a peripheral device

13. c. Hard copy terminal

14. b. Printer

15. c. ROM and RAM

16. b. Ink-jet printer

17. a. Laser printer

18. b. Voice response unit

19. c. It will erase the previous content

20 b. Buffer